CN104114403A - System and method for actuating an energy storage device - Google Patents
System and method for actuating an energy storage device Download PDFInfo
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- CN104114403A CN104114403A CN201380010557.7A CN201380010557A CN104114403A CN 104114403 A CN104114403 A CN 104114403A CN 201380010557 A CN201380010557 A CN 201380010557A CN 104114403 A CN104114403 A CN 104114403A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a method for actuating an energy storage device having a large number of energy storage modules, which are connected in series in an energy supply line and which each comprise an energy storage cell module, which has at least one energy storage cell, and a coupling device having coupling elements which are designed to selectively connect the energy storage cell module into the respective energy supply line or to bridge said energy storage cell module. In this case, the method comprises the steps of detecting operating parameters of an electrical machine, a pulse-controlled inverter, which is coupled to the electrical machine, and the energy storage device, of selecting a number of energy storage modules as a function of at least one of the detected operating parameters, of actuating the coupling elements of the coupling devices of the selected energy storage modules for connecting the energy storage cell modules of the selected energy storage modules into the energy supply line, and of providing a total output voltage of the energy supply line for a DC voltage intermediate circuit which feeds the pulse-controlled inverter.
Description
Technical field
The present invention relates to for manipulating energy storing device, especially thering is the system and method for generation of the energy storing device of the modular battery system of classification output voltage.
Background technology
Present, in the future in the static applications such as wind generator facility or solar power-generating facility and in the vehicle such as motor vehicle driven by mixed power or elec. vehicle, use more and more electronic system, described electronic system is by combined to new energy storage technologies and electric drive technology.
Rotary current is realized by the changer of Pulse Inverter form to being fed to conventionally in motor.To this, can be polyphase ac voltage, for example three-phase alternating voltage by the DC voltage conversion being provided by DC voltage intermediate circuit.The branch road that DC voltage intermediate circuit is made up of the battery module of connecting at this carrys out feed.In order to meet the requirement to power and energy providing for corresponding application, multiple battery modules of connecting in the traction battery of being everlasting.
Publication DE 10 2,010 027 857 A1 and DE 10 2,010 027 861 A1 disclose the battery list pond of the modularization wiring in energy storing device, and these battery list ponds can be optionally coupled in the branch road being made up of the battery list pond of connecting or from this branch decoupling by the suitable manipulation of coupling unit.Such system is by the direct conv of title Battery Direct Converter(battery, BDC) and known.Such system comprises the DC current source in energy storage module branch road, and described DC current source can be connected to for the DC voltage intermediate circuit to motor or electrical network supply electric energy by Pulse Inverter.
Energy storage module branch road has the energy storage module of multiple series connection at this, the controollable coupling unit that wherein each energy storage module has at least one battery list pond and distributes, this coupling unit allows at least one battery list pond that cross-over connection distributes respectively according to control signal maybe at least one battery list pond of distributing respectively to be received in corresponding energy storage module branch road.Alternatively, coupling unit can be formed, and makes this coupling unit additionally allow at least one battery list pond of distributing be respectively also connected in corresponding energy storage module branch road with contrary polarity or also interrupt corresponding energy storage module branch road.
BDC has higher efficiency and the fail safe of Geng Gao conventionally with respect to conventional system.Fail safe is especially by with the guarantee of getting off, defective, failed or do not have completely powerful battery list pond to disconnect from energy supply branch road by the suitable cross-over connection manipulation of coupling unit.Total output voltage of energy storage module branch road can be changed and especially can be hierarchically adjusted by the corresponding manipulation of coupling unit.At this, the voltage by single energy storage module draws in the classification of output voltage, and wherein total output voltage of maximum possible is determined by the voltage sum of all energy storage modules of energy storage module branch road.
In order to adjust the output voltage of energy storage module, can carry out pulse width modulation (PWM) manipulation of coupling unit.Thus can be by turning on and off the changing targetedly using desired aviation value as energy storage module Voltage-output of time.
Exist for the demand that can realize control method and the control system of control policy by it for this BDC, the charge condition in the battery list pond of described control policy and BDC independently ensured the loss power in system loss power, each system unit and/or the voltage stability in DC voltage intermediate circuit be minimized the optimum adjustment of voltage in DC voltage intermediate circuit.
Summary of the invention
The present invention proposes a kind of for manipulating the method for energy storing device according to an aspect, described energy storing device has multiple energy storage modules that are connected in energy supply branch road, described energy storage module comprises respectively: have the stored energy list pond module and the coupling device with coupling element at least one stored energy list pond, described coupling element is designed to stored energy list pond module optionally to receive stored energy list pond module in corresponding energy supply branch road or described in cross-over connection.Described method has step at this: detect motor, with the Pulse Inverter of motor coupling and the operational factor of energy storing device; Select the quantity of energy storage module according at least one in detected operational factor; The coupling element that manipulates the coupling device of selected energy storage module is received the stored energy list pond module of selected energy storage module in energy supply branch road; And provide total output voltage of energy supply branch road for the DC voltage intermediate circuit of paired pulses Inverter Fed.
According to another aspect, the invention provides a kind of system, described system has energy storing device, described energy storing device has multiple energy storage modules that are connected in energy supply branch road, described energy storage module comprises respectively the stored energy list pond module with at least one stored energy list pond and the coupling device with coupling element, and described coupling element is designed to stored energy list pond module optionally to receive stored energy list pond module in corresponding energy supply branch road or described in cross-over connection.Described system also has: DC voltage intermediate circuit, described DC voltage intermediate circuit and energy storing device coupling; Pulse Inverter, described Pulse Inverter and DC voltage intermediate circuit are coupled and from DC voltage intermediate circuit, are fed to input voltage; Motor, described motor and Pulse Inverter are coupled and from Pulse Inverter, supply phase voltage; And control setup, described control setup and coupling device are coupled and are designed to and carry out according to of the present invention for manipulating the method for energy storing device.
Advantage of the present invention
Design of the present invention is, by the energy storing device manipulation that there is Modularly and be connected on the battery unit in branch road be, the intermediate circuit voltage of the DC voltage intermediate circuit by energy storing device feed is optimized, especially aspect the charge condition in the battery list pond of the loss power in total system, in each system unit or energy storing device.This can be undertaken by the relevant operational factor of difference in checking system neutralized system parts, the suitable output voltage that the analysis of described operational factor makes it possible to select the suitable quantity in the battery list pond that will access and therefore adjusts energy storing device.
According to the inventive method embodiment, detect the torque that operational factor can comprise the rotating speed and the motor that detect motor, and select the quantity of energy storage module to carry out according to detected rotating speed and the torque detecting.
According to another embodiment of the inventive method, detect operational factor and can comprise that detected energy stores the charge condition in single pond, and select the quantity of energy storage module to carry out according to charge condition.
According to another embodiment of the inventive method, select the quantity of energy storage module to be undertaken by the quantity given in advance of determining the energy storage module in the characteristic family opening in the rotating speed by detected and the torque detecting.
According to another embodiment of the inventive method, described method can also comprise step: detect the operational mode of motor, and according to detected operational mode, the selected quantity limitation of energy storage module is arrived to maximum quantity.
An embodiment of system according to the invention, coupling device has power mosfet switch or IGBT switch.
The further feature of embodiments of the present invention and advantage are by drawing with reference to the description of the drawings subsequently.
Brief description of the drawings
Fig. 1 illustrates according to the schematic diagram of the system with interchangeable energy storing device of one embodiment of the present invention;
Fig. 2 illustrates according to the schematic diagram of the energy storage module of the energy storing device of Fig. 1 embodiment;
Fig. 3 illustrates according to the schematic diagram of another embodiment of the energy storage module of the energy storing device of Fig. 1;
Fig. 4 illustrates the efficiency of energy storing device and the schematic diagram of the chart of the relation of the quantity of the energy storage module accessing;
Fig. 5 illustrates the schematic diagram of loss power in the system with energy storing device and the chart of the relation of the quantity of the energy storage module accessing;
Fig. 6 illustrates the schematic diagram of the characteristic family of the quantity of the loss optimum of the energy storage module that accesses of another embodiment energy storing device according to the present invention; And
Fig. 7 illustrates according to the schematic diagram of the method for the energy storing device for replacement system of another embodiment of the invention.
Detailed description of the invention
Fig. 1 illustrates for being the system 100 of n cross streams voltage by the vdc voltage transitions being provided by energy storage module 3.This system 100 comprises the energy storing device 1 with energy storage module 3, and these energy storage modules are connected in energy supply branch road.This energy supply branch road is coupling between two lead-out terminal 1a and 1b of energy storing device 1, and these two lead-out terminals are coupled to respectively on DC voltage intermediate circuit 2b.Exemplarily, this system 100 in Fig. 1 for give three phase electric machine 6 feeds.But also can specify, energy storing device 1 is used to as energy supply net 6 generation currents.
Energy storing device 1 is by coupling inductance 2a and DC voltage intermediate circuit 2b coupling for this reason.Coupling inductance 2a can be for example the inductive reactance device being connected to targetedly between DC voltage intermediate circuit 2b and the lead-out terminal 1a of energy storing device 1.Alternatively also possible that, in any case coupling inductance 2a be formed in the wiring between energy storing device 1 and DC voltage intermediate circuit 2b by the parasitic inductance all existing.
DC voltage intermediate circuit 2b paired pulses inverter 4 feeds, this Pulse Inverter 4 from the vdc of DC voltage intermediate circuit 2b for motor 6 provides three-phase alternating voltage.
System 100 can comprise control setup 8 in addition, this control setup is connected with energy storing device 1, and can control energy storing device 1 by this control setup, to desired total output voltage of energy storing device 1 is offered to corresponding lead-out terminal 1a, 1b.In addition, this control setup 8 can be designed to, and manipulates corresponding coupling element or the active switch element of energy storing device 1 in the stored energy list pond of giving energy storing device 1 while charging.
The energy supply branch road of energy storing device 1 has the energy storage module 3 of at least two series connection.Exemplarily, the quantity of energy storage module 3 is 4 in Fig. 1, but wherein each other quantity of energy storage module 3 is fine equally.Energy storage module 3 has respectively two lead-out terminal 3a and 3b, and the module output voltage of energy storage module 3 can be provided by these two lead-out terminals.Because energy storage module 3 is connected at first, so the module output voltage of energy storage module 3 is summed into total output voltage, this total output voltage is provided for lead-out terminal 1a, the 1b of energy storing device 1.
Two exemplary versions of energy storage module 3 are illustrated in more detail in Fig. 2 and Fig. 3.Energy storage module 3 comprises respectively the coupling device 7 with multiple coupling element 7a, 7c and 7b and 7d at this.Energy storage module 3 comprises respectively that the stored energy list pond 5a with one or more series connection is to the stored energy list pond module 5 of 5k in addition.
Single pond 5a that stored energy list pond module 5 for example can have series connection at this is to 5k, for example lithium ion list pond.In the energy storage module 3 shown in Fig. 2 and Fig. 3, be for example two to the quantity of 5k at this stored energy list pond 5a, but wherein stored energy list pond 5a is possible to each other quantity of 5k equally.Stored energy list pond module 5 has terminal voltage U
mand be connected with the input terminal of affiliated coupling device 7 by connection lead.Therefore voltage U
mon the input end of the coupling device 7 under being applied to.
In Fig. 2, the coupling element 7a of series connection and 7c form the so-called left branch of full-bridge, the centre tap of described coupling element is connected with mouth 3a, and the so-called right branch of the coupling element 7b of series connection and 7d formation full-bridge, and the centre tap of described coupling element is connected with mouth 3b.Coupling device 7 is constructed to have the full-bridge circuit of each two coupling element 7a, 7c and two coupling element 7b, 7d in Fig. 2.Coupling element 7a, 7b, 7c, 7d can have respectively active switch element, for example semiconductor switch and the idle running diode in parallel with it at this.Can specify at this, coupling element 7a, 7b, 7c, 7d are constructed to switch mosfet, and these switch mosfets have had intrinsic diode.
Coupling element 7a, 7b, 7c, 7d can be for example that corresponding stored energy list pond module 5 is optionally received between lead-out terminal 3a and 3b or by module 5 cross-over connections of stored energy list pond by the control setup 9 shown in Fig. 1 by manipulation.With reference to Fig. 2, stored energy list pond module 5 for example can be received between lead-out terminal 3a and 3b with forward in the following manner, be that the active switch element of coupling element 7d and the active switch element of coupling element 7a are placed in closed state, and two remaining active switch elements of coupling element 7b and 7c are placed in the state of opening.In this case, voltage U
mbe applied between the mouth 3a and 3b of coupling device 7.Cross-over connection state for example can be adjusted in the following manner, and two of coupling element 7a and 7b active switch elements are placed in closed state, and two active switch elements of coupling element 7c and 7d are maintained at the state of opening.The second cross-over connection state for example can be adjusted in the following manner, and two of coupling element 7c and 7d active switch are placed in closed state, and two active switch elements of coupling element 7a and 7b are maintained at the state of opening.Under two kinds of cross-over connection states, voltage 0 is applied between two mouth 3a and 3b of coupling device 7.Equally, stored energy list pond module 5 can be in the following manner to be oppositely connected between the lead-out terminal 3a and 3b of coupling device 7, the active switch element that is coupling element 7b and 7c is placed in closed state, and the active switch element of coupling element 7a and 7d is placed in the state of opening.In this case, voltage-U
mbe applied between two mouth 3a and 3b of coupling device 7.
Therefore by the suitable manipulation of coupling device 7, each stored energy list pond module 5 of energy storage module 3 can be integrated in the circuit series of energy supply branch road targetedly.Thus can be by coupling device 7 manipulate targetedly each output voltage that provides the stored energy list pond module 5 that total output voltage, this total output voltage depend on energy storage module 3 in energy supply branch road optionally the stored energy list pond module 5 of energy storage module 3 is received.Total output voltage can hierarchically be adjusted respectively at this, and its intermediate quantity is along with the quantity of energy storage module 3 is stretched.Be n in the quantity of energy storage module 3, total output voltage of energy supply branch road can be at-nU
m..., 0 ... ,+nU
mbetween a point 2n+1 level adjust.
Fig. 3 illustrates the schematic diagram of another exemplary configuration mode of energy storage module 3.Only include coupling element 7a and 7c at this coupling device 7, described coupling element can or be received in energy supply branch road with forward with cross-over connection state or with on-state stored energy list pond module 5 as half-bridge circuit.In addition, as in conjunction with Fig. 3 for explaining at the energy storage module in full-bridge circuit 3 as shown in Fig. 3, have similar manipulation rule to be suitable for.
Conventionally need to be in the full voltage at motor 6 places in the low engine speed range of motor 6.Therefore the voltage of DC voltage intermediate circuit 2b is adjusted in corresponding low value just enough.This lower value for example can be by selecting accordingly the energy storage module 3 in energy storing device 1 the quantity of minimizing carry out.
This causes on the one hand, switching loss in Pulse Inverter 4 reduces, described switching loss for example produces by the switching of the IGBT switch in Pulse Inverter 4 and the corresponding idle electric current in the diode of distributing to described IGBT switch, because these losses are approx along with the input voltage that is applied to Pulse Inverter 4 places stretches.On the other hand, the eddy current loss in motor 6 reduces, because the appearance degree of eddy current depends on the harmonic content of total output voltage of energy storing device 1 in the same manner.In addition, the alternating-current voltage/AC voltage loss in the winding of motor 6 is because this rule declines.
On the contrary, in energy storing device 1, produce the conduction loss improving, because the direct-current component in energy storing device 1 is along with the quantity of accessed energy storage module 1 reduces and increases.Because direct-current component enters into the calculating of the conduction loss of energy storing device 1 in quadratic power mode, so the loss at module 5 places, stored energy list pond is along with the quantity of accessed energy storage module 3 reduces and raises.
Fig. 4 illustrates the efficiency eta of energy storing device 1 and the schematic diagram of the chart 40 of the relation of the quantity N of the energy storage module 3 accessing.In this chart 40 with two characteristic curves 41 and 42 of the different operational factors of the form input system 100 of matter.
Exemplarily suppose the specific charge condition of all stored energy list pond 5a to 5k, and by the desired load of motor 6.Characteristic curve 41 is illustrated in now efficiency eta in the situation that the rotating speed D of motor 6 is little and declines along with the rising of the quantity N of accessed energy storage module 3.Rotating speed D for characteristic curve 41 can be for example about 500U/min.Conversely, characteristic curve 42 be illustrated in the rotating speed D of motor 6 when high efficiency eta along with the quantity N of accessed energy storage module 3 raises and increases.Rotating speed D for characteristic curve 42 can be for example about 10000U/min.
Fig. 5 illustrates the schematic diagram of loss power P in the system 100 with energy storing device 1 and the chart 50 of the relation of the quantity N of the energy storage module 3 accessing in a similar manner.Characteristic curve 52 exemplarily illustrates the switching loss of Pulse Inverter 4, and described switching loss is along with the quantity of accessed energy storage module 3 raises and increases.On the contrary, characteristic curve 51 illustrates the switching loss in energy storing device 1, described switching loss is along with the quantity of accessed energy storage module 3 increases and declines, because the current consumer on the coupling device of each energy storage module 3 declines generally due to the distribution to multiple energy storage modules 3.Characteristic curve 53 illustrates exemplary main supply switch damage curve, and it especially depends on characteristic curve 51 and 52 sums.This characteristic curve 53 has minimum value in the specific quantity N of energy storage module 3 situation, wherein all loss power sum minimums in system 100.
From this characteristic, can derive the first piloting strategies for energy storing device 1, the mode of being passed through is, selects respectively the optimal number of the energy storage module that accesses 3 in the energy supply branch road of energy storing device 1 for minimization system loss power or for optimization system efficiency according to the charge condition of the transient speed D of motor 6, momentary load and/or stored energy list pond 5a to 5k.
Fig. 6 shows the schematic diagram of the characteristic family 60 of the quantity of the loss optimum of the energy storage module that accesses 3 of energy storing device 1 for this reason.Characteristic family 60 can for example for example, form according to two of motor 6 system parameter rotating speed D and torque M (consumption of power).For each point of characteristic family 60, can determine the optimal number of the energy storage module that will access 3 in the energy supply branch road of energy storing device 1 at this.Exemplarily 4 scopes of typing 61,62,63 and 64 in characteristic family 60.For example can be in scope 61 optimum be only to access two energy storage modules 3, and optimum in scope 64 be 4 energy storage modules 3 of access.Should be appreciated that at this diagram in Fig. 6 is only exemplary situation, and actual characteristic family of curves line may there is deviation with selected diagram.
Can carry out simulation or scan characteristic family according to measuring in order to determine characteristic family line 61 to 64 in the new field of technical activity.So having the determined characteristic family 60 of corresponding piloting strategies for example can be stored in the control setup 8 of Fig. 1.
Also possibly, in control setup 8, be built up in the loss model of the functional relation form between the operational factor of system 100, make in control setup 8 to the calculating of the energy storage module 3 that optimally will access can be along with the time of run of system 100, be namely performed online.In order to determine the operational factor of system 100, control setup 8 can for example be determined the operational factor of corresponding system parts, for example energy storing device 1, Pulse Inverter 4 and/or motor 6 via sensor device or measurement mechanism.
Another standard in the time selecting the energy storage module 3 that will access can be the adjustment of the voltage stability of voltage in DC voltage intermediate circuit 2b.This can be favourable thus, because the design surface of motor 6 is to minimum input voltage.In the situation that stored energy list pond 5a to 5k discharges completely, the output voltage in each stored energy list pond is only about 60% of maximum possible nominal voltage.In the time that motor 6 is designed to lower minimum voltage position, less wire turn is set conventionally, to the pole wheel voltage of induction is kept littlely.
But when total output voltage of energy storing device 1 can remain on constant, especially when higher level, the number of wire turns of motor 6 needn't reduce or motor 6 can be designed to higher minimum voltage position.Thus, energy storing device 1, Pulse Inverter 4 and every other electric connecting part are as the voltage load reduction on plug, flow wire, terminal etc.Additionally can independently keep from basic status to motor with the charge condition of energy storing device 1 transition in 6 field weakening region.In addition for example, disperseed by the voltage of the parts---In-vehicle networking electric pressure converter or like---of DC voltage intermediate circuit 2b feed little, thereby the design of these parts can be formulated more simply or more effectively.
Therefore, the second piloting strategies for energy storing device 1 is, select to be linked into the energy storage module 3 in the energy supply branch road of energy storing device 1 according to the charge condition of the stored energy list pond 5a to 5k in energy storage module 3 for the voltage location in stable DC voltage intermediate circuit 2b, make total output voltage of energy storing device 1 keep constant with respect to the charge condition of energy storage module 3.For constant (height) voltage also can be provided in the low charge condition situation of energy storage module 3, can the quantity of energy storage module 3 be selected highlyer for this reason.For example the quantity of energy storage module 3 can be selected as, the total output voltage that makes energy storing device 1 in the fully charged state situation of all energy storage modules 3 higher than for operation Pulse Inverter 4 required or allow.Thus, along with the charge condition of energy storage module 3 declines, the quantity of the energy storage module 3 that access improves energy storage module reserved in deposit 3 gradually.
Finally under the operational mode of motor 6, disconnect energy storage module 3, under described operation module, only need low input or little rotating speed, the advantage aspect the switching loss in Pulse Inverter 4.For example, in elec. vehicle, wherein motor 6 has the starting that the operational mode of little rotating speed is upward slope place.Under described operational mode, Pulse Inverter 4 shows the maximum phase current allowing.
The 3rd piloting strategies is, the quantity limitation of the energy storage module 3 that will access under the operational mode given in advance of motor 6 is, the input voltage at Pulse Inverter 4 places is so reduced to degree, thereby this Pulse Inverter no longer limit the maximum phase current of permission.Especially the switching loss in Pulse Inverter 4 reduces thus, this result causes the design of the improvement of motor 6 because the axial length of motor 6 in order to realize sufficiently high torque, for example needn't be matched with again the phase current of Pulse Inverter 4 for the starting at hillside place.
Fig. 7 illustrates the schematic diagram of the method 70 of the energy storing device 1 for manipulating energy storing device, for example Fig. 1.The method 70 for example can realize by the control setup 8 in Fig. 1 at this.Consider in the method three kinds of piloting strategies of setting forth above.Control setup 8 can have detection line 8a, 8b and 8c for this reason, utilizes these detection line control setups 8 to be connected with energy storage module 3, Pulse Inverter 4 and motor 6, and can detect the operational factor of corresponding component via these detection lines.
Method 70 can be used as first step 71 have detect motor, with the Pulse Inverter of motor coupling and the operational factor of energy storing device 1.Described operational factor can comprise the torque of rotating speed and the motor of motor at this.The charge condition in stored energy list pond that in addition can detected energy memory storage 1 is as operational factor.
In second step 72, the quantity of selecting energy storage module according at least one in detected operational factor, the coupling element that then manipulates the coupling device of selected energy storage module in step 73 is received the stored energy list pond module of selected energy storage module in energy supply branch road.Total output voltage of energy supply branch road can be provided for the DC voltage intermediate circuit of paired pulses Inverter Fed thus in step 74.
In addition can detect alternatively the operational mode of motor and according to detected operational mode, the selected quantity limitation of energy storage module be arrived to maximum quantity.This especially in the specific run pattern of motor, for example to have under the operational mode of slow speed of revolution and high torque (HT) be favourable.Maximum number quantitative limitation can, with respect to the quantity of the selection energy storage module carrying out in step 72 by priorization, that is to say, the quantity of energy storage module is crossed max function according to detected operational mode lid.
Claims (7)
1. for manipulating the method (70) of energy storing device (1), described energy storing device (1) has multiple energy storage modules (3) that are connected in energy supply branch road, and described energy storage module (3) comprises respectively:
There is the stored energy list pond module (5) at least one stored energy list pond (5a, 5k), and
There is coupling element (7a, 7b; 7c, 7d) coupling device (7), described coupling element is designed to stored energy list pond module (5) optionally to receive stored energy list pond module (5) in corresponding energy supply branch road or described in cross-over connection,
Wherein said method (70) comprises step:
Detect (71) motor (6), with the Pulse Inverter (4) of motor (6) coupling and the operational factor of energy storing device (1);
Select the quantity of (72) energy storage module (3) according at least one in detected operational factor;
Coupling element (7a, the 7b of the coupling device (7) of manipulation (73) selected energy storage module (3); 7c, 7d) the stored energy list pond module (5) of selected energy storage module (3) is received in energy supply branch road; And
For the DC voltage intermediate circuit (2b) of paired pulses inverter (4) feed provides total output voltage of energy supply branch road.
2. method according to claim 1 (70), wherein detect (71) operational factor and comprise the rotating speed of detection motor (6) and the torque of motor (6), and wherein select the quantity of (72) energy storage module (3) to carry out according to detected rotating speed and the torque detecting.
3. according to the method (70) one of claim 1 and 2 Suo Shu, wherein detect (71) operational factor and comprise that detected energy stores the charge condition of single pond (5a, 5k), and wherein select the quantity of (72) energy storage module (3) to carry out according to charge condition.
4. method according to claim 2 (70), wherein selects the quantity of (72) energy storage module (3) to be undertaken by the quantity given in advance of determining the energy storage module (3) in the characteristic family (60) opening in the rotating speed by detected and the torque detecting.
5. according to the method one of claim 1 to 4 Suo Shu (70), also there is step:
Detect the operational mode of motor (6); With
According to detected operational mode, the selected quantity limitation of energy storage module (3) is arrived to maximum quantity.
6. system (100), has:
Energy storing device (1), described energy storing device (1) has multiple energy storage modules (3) that are connected in energy supply branch road, and described energy storage module (3) comprises respectively:
There is the stored energy list pond module (5) at least one stored energy list pond (5a, 5k), and
There is coupling element (7a, 7b; 7c, 7d) coupling device (7), described coupling element is designed to stored energy list pond module (5) optionally to receive stored energy list pond module (5) in corresponding energy supply branch road or described in cross-over connection;
DC voltage intermediate circuit (2b), described DC voltage intermediate circuit and energy storing device (1) coupling;
Pulse Inverter (4), described Pulse Inverter and DC voltage intermediate circuit (2b) are coupled and are fed to input voltage from DC voltage intermediate circuits (2b);
Motor (6), described motor and Pulse Inverter (4) coupling and supply phase voltage from Pulse Inverter (4); And
Control setup (8), described control setup and coupling device (7) be coupled and be designed to carry out according to one of claim 1 to 5 Suo Shu for manipulating the method for energy storing device (1).
7. system according to claim 6 (100), wherein coupling device (7) has power mosfet switch or IGBT switch.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012202863.3 | 2012-02-24 | ||
| DE102012202863A DE102012202863A1 (en) | 2012-02-24 | 2012-02-24 | System and method for driving an energy storage device |
| PCT/EP2013/050085 WO2013124079A1 (en) | 2012-02-24 | 2013-01-04 | System and method for actuating an energy storage device |
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| Publication Number | Publication Date |
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| CN104114403A true CN104114403A (en) | 2014-10-22 |
| CN104114403B CN104114403B (en) | 2017-06-27 |
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| CN201380010557.7A Active CN104114403B (en) | 2012-02-24 | 2013-01-04 | System and method for manipulating energy storing device |
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| CN (1) | CN104114403B (en) |
| DE (1) | DE102012202863A1 (en) |
| WO (1) | WO2013124079A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266029A (en) * | 2019-06-03 | 2019-09-20 | 杭州模储科技有限公司 | A kind of modular multilevel energy-storage system |
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| DE102014004234A1 (en) | 2014-03-25 | 2014-09-25 | Daimler Ag | Voltage regulator based on a single cell circuit |
| DE102014004655A1 (en) | 2014-03-29 | 2014-09-25 | Daimler Ag | Circuit arrangement for a motor vehicle |
| GB2556914A (en) | 2016-11-25 | 2018-06-13 | Dyson Technology Ltd | Battery system |
| DE102018106308B4 (en) * | 2018-03-19 | 2020-02-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Modulation index improvement through intelligent battery |
| DE102020124737A1 (en) | 2020-09-23 | 2022-03-24 | Audi Aktiengesellschaft | Detection device, measuring arrangement, battery cell unit, motor vehicle and method for detecting a voltage |
| DE102020126989A1 (en) | 2020-10-14 | 2022-04-14 | Audi Aktiengesellschaft | Control device for controlling a battery of an on-board network for a motor vehicle, on-board network, motor vehicle and method for controlling a battery |
| CN114030388B (en) * | 2021-10-27 | 2024-02-27 | 智新控制系统有限公司 | Overcurrent protection system and method |
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| DE102010027861A1 (en) | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Coupling unit and battery module with integrated pulse inverter and exchangeable cell modules |
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- 2012-02-24 DE DE102012202863A patent/DE102012202863A1/en not_active Ceased
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- 2013-01-04 WO PCT/EP2013/050085 patent/WO2013124079A1/en active Application Filing
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| US5670861A (en) * | 1995-01-17 | 1997-09-23 | Norvik Tractions Inc. | Battery energy monitoring circuits |
| EP2056422A1 (en) * | 2007-11-01 | 2009-05-06 | Honda Motor Co., Ltd. | Battery discharge control system |
| CN102007666A (en) * | 2008-04-14 | 2011-04-06 | 罗伯特.博世有限公司 | Emergency power supply device for a hybrid vehicle |
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| WO2013124079A1 (en) | 2013-08-29 |
| DE102012202863A1 (en) | 2013-08-29 |
| CN104114403B (en) | 2017-06-27 |
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