CN103296910A - Direct voltage capture device for energy storage device and method for generating direct voltage by energy storage device - Google Patents
Direct voltage capture device for energy storage device and method for generating direct voltage by energy storage device Download PDFInfo
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- CN103296910A CN103296910A CN2013100567258A CN201310056725A CN103296910A CN 103296910 A CN103296910 A CN 103296910A CN 2013100567258 A CN2013100567258 A CN 2013100567258A CN 201310056725 A CN201310056725 A CN 201310056725A CN 103296910 A CN103296910 A CN 103296910A
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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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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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
- B60L58/21—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 the same nominal 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
- 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
- B60L58/22—Balancing the charge of 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
- B60L2210/00—Converter types
- B60L2210/30—AC to DC 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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC 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
- 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
- B60L2240/427—Voltage
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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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
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a direct voltage capture device (8) for an energy storage device (1). The energy storage device (1) is provided with a plurality of energy supply branches (Z); and each of the energy supply branches (Z) is provided with a plurality of energy storage modules (3). The direct voltage capture device (8) is provided with a first half-bridge circuit (9) with a plurality of first collective terminals (8a, 8b, 8c); and each of the first collective terminals (8a, 8b, 8c) is coupled to one of output terminals (1a, 1b, 1c) of the energy storage device (1). The direct voltage capture device also comprises a second half-bridge circuit (15) with a plurality of second collective terminals (8g, 8h, 8i); and each of the second collective terminals (8g, 8h, 8i) is coupled to one of the output terminals (1a, 1b, 1c) of the energy storage device (1). The direct voltage capture device also comprises a step-up converter (14).
Description
Technical field
The present invention relates to for a kind of direct voltage capture device (Gleichspannungsabgriffsanordnung) of energy storage device and a kind of method that is generated direct voltage by energy storage device, especially in the system with the direct inverter of battery, it is used for simultaneously generating another current potential to the motor power supply and for direct current network.
Background technology
As can be seen: future, not only in fixing application, such as wind energy plant or solar facilities, also in automobile, such as mixing or electric automobile, more electronic system was used, and these electronic systems combine new energy storage technology with electric Driving technique.
The power supply of multiphase current is usually by realizing with a kind of inverter of pulse inverter form in motor.Can be the direct voltage inversion that is provided by the direct voltage intermediate loop polyphase ac voltage, such as three-phase alternating voltage for this reason.This direct voltage intermediate loop is powered at this branch road by the series-connected cell module.The given requirement to power and energy in order to satisfy at respective application is a plurality of battery module series connection a traction cell usually.
The problem that this series circuit of a plurality of battery modules brings is that if a unique battery module lost efficacy, so whole branch road just lost efficacy.This inefficacy of power supply branch road may cause the inefficacy of whole system.Temporary transient or the permanent power decline that occurs of single battery module may cause the power in whole power supply branch road to descend in addition.
In file US 5,642,275 A1, a kind of battery system with integrated inverse function has been described.This system be called multi-stage cascade inverter or the direct inverter of battery (Batteriedirektumrichter, BDI).This system includes the DC power supply with a plurality of energy-storage module branch road forms, and it can be directly connected to a motor or an electrical network.Can generate single-phase or heterogeneous supply power voltage at this.This energy-storage module branch road has the energy-storage module of a plurality of series connection at this, wherein each energy-storage module has the controlled coupling unit under at least one battery unit and, it allows to come corresponding at least one the affiliated battery unit of cross-over connection according to control signal, perhaps at least one battery unit under corresponding is connected in the corresponding energy-storage module branch road.Can so construct at this this coupling unit, make it also allow in addition at least one battery unit under corresponding also is connected in the corresponding energy-storage module branch road with the polarity of counter-rotating, perhaps also disconnect corresponding energy-storage module branch road.By controlling this coupling unit suitably, such as by pulse-width modulation, also can provide suitable phase signal to come the control phase output voltage, so make and can abandon discrete pulse inverter.Thereby be used for the required pulse inverter of control phase output voltage and be integrated in so-called BDI.
BDI is with respect to the system of routine and have a higher efficient, higher fail safe and significantly lower harmonic content in its output voltage usually.This fail safe guarantees especially by the following, namely fault, that lost efficacy or not exclusively effectively battery unit can by control suitably under it coupling unit and in this power supply branch road by cross-over connection.This phase place output voltage of an energy-storage module branch road can change by correspondingly controlling this coupling unit, and regulates especially step by step.The level of this output voltage constitutes at this voltage by single energy-storage module, and wherein the phase place output voltage of maximum possible is determined by all energy-storage module sums of an energy-storage module branch road.
This document DE 10 2,010 027 857 A1 and DE 10 2,010,027 861 A1 are such as the direct inverter of the battery that openly has a plurality of battery module branch roads, and it can be directly connected on the motor.
In the output of BDI, do not provide constant DC to press, because this energy-storage units is divided into different energy-storage modules, and must control its coupling device to generate a current potential targetedly.Because this division, DBI does not provide as direct voltage source substantially, such as the power supply that is used for electrical network on the electric automobile car.
Thereby need to be used for a kind of capture device of energy storage device and a kind of method that is used for driving this energy storage device, can or generating another current potential, DC potential especially in the intercepting continuous in service of this energy storage device.
Summary of the invention
According to an aspect, the invention provides a kind of direct voltage capture device for a kind of energy storage device, wherein this energy storage device has a plurality of energy supply branch roads, this energy supplies with that branch road is corresponding to have a plurality of energy-storage modules, generate an alternating voltage with a plurality of lead-out terminals at this energy storage device, this direct voltage capture device has first half-bridge circuit, this first half-bridge circuit has a plurality of first and assembles terminal, this first is assembled terminal and is coupled with one of lead-out terminal of this energy storage device respectively, this direct voltage capture device also has second half-bridge circuit, this second half-bridge circuit has a plurality of second and assembles terminal, this second is assembled terminal and is coupled with one of lead-out terminal of this energy storage device respectively, and this direct voltage capture device also has a boost converter (Hochsetzsteller), this boost converter is coupling between this first half-bridge circuit and this second half-bridge circuit, and this boost converter is designed to according to potential difference between this first half-bridge circuit and this second half-bridge circuit for this reason and provides a direct voltage at the intercepting terminal of this direct voltage capture device.
According on the other hand, the present invention also provides a kind of power drive system, this system has an energy storage device, this energy storage device has a plurality of energy and supplies with branch road, this energy is supplied with branch road and is had a plurality of energy-storage modules respectively, generate an alternating voltage with a plurality of lead-out terminals at this energy storage device, this system also has one according to direct voltage capture device of the present invention, and first of this direct voltage capture device is assembled terminal and second and assembled terminal and be coupled with one of lead-out terminal of this energy storage device respectively.
According on the other hand, the invention provides for a kind of method that is generated a direct voltage by an energy storage device, wherein this energy storage device has a plurality of energy supply branch roads, this energy is supplied with branch road and is had a plurality of energy-storage modules respectively, generate an alternating voltage with a plurality of lead-out terminals at this energy storage device, this method has the step in a corresponding instantaneous maximum potential of lead-out terminal intercepting of this energy storage device, has the step at a corresponding instantaneous potential minimum of a plurality of lead-out terminal interceptings of this energy storage device, have and utilize a boost converter to corresponding instantaneous maximum potential and this step of boosting with reference to the potential difference between the current potential, and the step with direct voltage that provides relevant with boosted potential difference.
Design of the present invention is, a circuit and energy storage device, especially the output of a direct inverter of battery is coupled, utilizes this circuit can be from direct voltage of output intercepting of this energy storage device.Stipulate for this reason, two diode half-bridges are coupled on the lead-out terminal of this energy storage device as aggregation apparatus (Sammeleinrichtungen), utilize this diode half-bridge can corresponding intercepting instantaneous the highest and instantaneous minimum current potential on the lead-out terminal of this energy storage device.These two current potentials have a potential difference, and this potential difference can be used for generating a direct voltage by a boost converter.This direct voltage is so such as the intermediate loop capacitances to supply power that just can be used for to electrical network on the car.
A remarkable advantage of this direct voltage capture device is that the change that this energy storage device need not be extra just can be applied in the power drive system, that is to say, needn't intervene the operation of energy storage device.Such as when being used in this energy storage device in the electric automobile, can generating for an electrically driven (operated) supply power voltage simultaneously and be used for a direct voltage of electrical network on the car of electric automobile.
Advantageously can remain number of elements by the aggregation apparatus of this direct voltage capture device small because in this direct voltage capture device, only need a boost converter come to car on the intermediate loop capacitances to supply power of electrical network.Thereby reduced the element demand thus on the one hand and reduced component space demand and system weight, especially in power drive system, can also make the switching loss minimum on the other hand.
This circuit engineering additionally expends advantageously small.The advantage that has in addition is, when generating this direct voltage, can carry out balance to the energy-storage units module that participates in, also namely can be according to charged state and aging effect automatically along with coming single energy-storage units module is carried out identical loading in the balance of implementing in service of this energy storage device, so make this energy-storage module by identical loading, and improved life-span and the availability of this energy storage device thus.
There is a significant advantage in addition, namely in this boost converter, can adopt a switch element, such as a semiconductor power switch, this switch element needn't have oppositely by ability, because the input voltage of this boost converter always has identical polarity.This advantage that provides is can the loss power in this boost converter be minimized.
By intercepting corresponding instantaneous the highest and instantaneous potential minimum on this lead-out terminal, can be used for generating direct voltage to the potential difference of corresponding instantaneous maximum possible.Can avoid in addition this direct voltage capture device muchly with being connected with reference to the electromotive force bus-bar of this energy storage device.
According to an embodiment of energy storage device of the present invention, this first half-bridge circuit can have a plurality of first diodes, and this first diode is coupling in this boost converter and a plurality of first respectively to be assembled between one of terminal.In an advantageous embodiment, this first half-bridge circuit can have a plurality of first commutating inductance coils, and this first commutating inductance coil is coupling in respectively between a plurality of first diodes and this boost converter.Equally, according to another embodiment of energy storage device of the present invention, this second half-bridge circuit can have a plurality of second diodes, and this second diode is coupling in this boost converter and a plurality of second respectively to be assembled between one of terminal.In an advantageous embodiment, this second half-bridge circuit can have a plurality of second commutating inductance coils, and this second commutating inductance coil is coupling in respectively between a plurality of second diodes and this boost converter.Can compensate or be buffered on the lead-out terminal corresponding potential fluctuation in this half-bridge circuit thus, especially the high-frequency fluctuation when the particular point in time of this energy storage device of control.In a preferred embodiment, can be coupled the anode of a plurality of first diodes and this first gathering terminal respectively, and respectively the negative electrode of a plurality of second diodes and this second gathering terminal are coupled.
According to another embodiment of energy storage device of the present invention, this boost converter can have a converter inductance coil, an output diode and a governor switch element.In an advantageous embodiment, this governor switch element can have a power semiconductor switch, such as a switch mosfet or IGBT switch.This advantage that has is can adopt to have the clear and definite switch element that oppositely ends ability.
According to another embodiment, energy storage device of the present invention can include an intermediate loop electric capacity, this capacitive coupling is between the intercepting terminal of this direct voltage capture device, and this electric capacity is designed to provide the output current that is generated by this boost converter pulse for this reason.
According to another embodiment, energy storage device of the present invention can have one first compensation diode, this first the compensation anode of diode and being coupled with reference to the electromotive force bus-bar of this energy storage device, first input end of its negative electrode and this boost converter is coupled, and/or this energy storage device can have one second compensation diode, this second the compensation negative electrode of diode and being coupled with reference to the electromotive force bus-bar of this energy storage device, second input terminal of its anode and this boost converter is coupled.Especially under the situation that voltage is small on the input terminal of this energy storage device, this can be by improving on a plurality of lead-out terminals of this energy storage device or reducing output voltage and be offset the neutral point current potential of this n phase motor with reference to current potential with respect to this in the same manner.Too little such as the stator voltage on the motor in low engine speed range else if, this is especially favourable so, provides sufficiently high input voltage to give this boost converter.Can always keep the current potential on the gathering terminal of this first half-bridge circuit minimum with reference to potential levels by this compensation diode, so make on a plurality of lead-out terminals of this energy storage device by reducing the input voltage that output voltage improves this boost converter in the same manner, perhaps can always remain the highest potential levels to the current potential on the accumulation point of this second half-bridge circuit, so make on a plurality of input terminals of this energy storage device by improving the input voltage that output voltage improves this boost converter in the same manner.
According to an embodiment of the inventive method, this method also includes the step that the direct voltage that provides is provided to intermediate loop electric capacity in addition.
According to an embodiment of the inventive method, this method can be used for utilizing power drive system of the present invention to provide direct voltage for electrical network on the car of electric automobile.
Other feature and advantage of embodiment of the present invention are referring to by reference to the accompanying drawings hereinafter explanation.
Description of drawings
Wherein:
Fig. 1 shows the schematic diagram of a system with energy storage device;
Fig. 2 shows the schematic diagram of an energy-storage module of energy storage device;
Fig. 3 shows the schematic diagram of an energy-storage module of energy storage device;
Fig. 4 shows the schematic diagram of a kind of system with an energy storage device and a direct voltage capture device according to an embodiment of the invention;
Fig. 5 shows the schematic diagram of a kind of system with an energy storage device and a direct voltage capture device according to another embodiment of the invention; And
Fig. 6 show according to another embodiment of the invention generate the schematic diagram of a kind of method of direct voltage by energy storage device.
Embodiment
Fig. 1 shows the schematic diagram of a kind of system 100 with energy storage device 1, to come the direct voltage that is provided in this energy-storage module 3 voltage to be changed to n cross streams voltage.This energy storage device 1 includes a plurality of energy and supplies with branch road Z, wherein shows to example three in Fig. 1, and it is suitable for such as generating three-phase alternating voltage for electric rotating machine 2.But obviously the energy of other every kind quantity supply branch road Z equally also is fine.This energy is supplied with branch road Z can have a plurality of energy-storage modules 3, and it is supplied with among the branch road Z at this energy and is in series.Supply with branch road Z such as each energy in Fig. 1 and show each three energy-storage module 3, but wherein the energy-storage module 3 of other every kind quantity equally also is fine.This energy storage device 1 is supplied with on the branch road Z at each energy has lead-out terminal 1a, a 1b and 1c, and this lead-out terminal is connected respectively on phase line 2a, 2b and the 2c.
This system 100 can also include a control device 6 in addition, and this control device is connected with this energy storage device 1, and can control this energy storage device 1 by this control device, to provide desired output voltage at corresponding lead-out terminal 1a, 1b and 1c.
This energy-storage module 3 has two lead-out terminal 3a and 3b respectively, and an output voltage of this energy-storage module 3 can be provided by this terminal.Because this energy-storage module 3 is at first connected, so the output voltage addition of this energy-storage module 3 becomes a total output voltage, this total output voltage can provide at the sub-1a of the corresponding output end of this energy storage device 1,1b and 1c.
In Fig. 2 and 3, illustrate in greater detail the example constructions form of this energy-storage module 3.This energy-storage module 3 includes a corresponding coupling device 7 at this, and this coupling device has a plurality of coupling unit 7a, 7c and 7b in case of necessity and 7d.This energy-storage module 3 also includes a corresponding energy-storage units module 5 in addition, and it has one or more energy-storage units 5a to 5k that are in series.
This energy-storage units module 5 at this such as having series connected battery 5a to 5k, such as lithium ion battery.Such as being two, but wherein the energy-storage units 5a to 5k of other every kind quantity equally also is fine in the quantity of this this energy-storage units 5a to 5k in the energy-storage module 3 shown in Fig. 2 and 3.
This energy-storage units module 5 is connected by the input terminal of connecting line with affiliated coupling device 7.This coupling device 7 in Fig. 2 such as constructing as the full-bridge circuit that respectively has two coupling unit 7a, 7c and two coupling unit 7b, 7d.This coupling unit 7a, 7b, 7c, 7d can have respectively such as active switch element of semiconductor switch and a fly-wheel diode in parallel with it at this.Can stipulate that at this this coupling unit 7a, 7b, 7c, 7d construct as the switch mosfet or the IGBT switch that have internal body diodes.Perhaps also can distinguish and only construct two coupling unit 7a, 7c, as among Fig. 3 shown in the example, so make and realized a half-bridge circuit.Can select as shown in FIG. 3 in being connected of this this lead-out terminal 3a and 3b.Perhaps this lead-out terminal 3a also can be connected on the centre tap between this coupling unit 7a and the 7c, and this lead-out terminal 3b can be connected on the negative pole of this energy-storage module 5.This lead-out terminal 3a and 3b also can exchange in addition in both cases.
This coupling unit 7a, 7b, 7c, 7d can so be controlled, and such as by at the control device 6 shown in Fig. 1, make corresponding energy-storage units module 5 can optionally be connected between this lead-out terminal 3a and the 3b, and perhaps this energy-storage units module 5 is by cross-over connection.With reference to Fig. 2, this energy-storage units module 5 is such as being connected between this lead-out terminal 3a and the 3b by forward, its mode is, the active switch element of the active switch element of this coupling unit 7d and this coupling unit 7a is set to closure state, and other two active switch elements of this coupling unit 7b and 7c are set to off-state.The cross-over connection state is such as can so regulating, and namely two of this coupling unit 7a and 7b active switch elements are set to closure state, and two active switch elements of this coupling unit 7c and 7d are set to off-state.A second cross-over connection state can so be regulated, and namely two of this coupling unit 7a and 7b active switch elements are retained as off-state, and two active switch elements of this coupling unit 7c and 7d are set to closure state.This energy-storage units module 5 is such as can oppositely being connected between this lead-out terminal 3a and the 3b at last, its mode is, the active switch element of the active switch element of this coupling unit 7b and this coupling unit 7c is set to closure state, and two other active switch element of this coupling unit 7a and 7d is set to off-state.By controlling this coupling device 7 suitably, thereby several energy-storage units modules 5 of this energy-storage module 3 can be targetedly and are integrated in an energy with polarity arbitrarily and supply with in the series circuit of branch road.Similarly consideration also can respective needle be implemented the half-bridge circuit among Fig. 3.
Be used for giving a three phase electric machine 2 power supplies such as this system 100 in Fig. 1, such as in the power drive system of electric automobile.But also can regulation adopt this energy storage device 1 to come to generate electric current for power supply grid 2.This energy supply with branch road Z can its end that is connected to neutral point with one with reference to current potential 4(with reference to the electromotive force bus-bar) be connected.This with reference to current potential 4 such as being an earth potential.
In order between this lead-out terminal of side 1a, 1b and 1c and opposite side are with reference to electromotive force bus-bar 4, to generate a phase voltage, only need the part of the energy-storage units module 5 of this energy-storage module 3 usually.Its coupling device 7 can so be controlled, make energy supply with total output voltage of branch road Z can be on the one hand between the positive voltage that multiply by energy-storage module 3 quantity of the negative voltage that multiply by energy-storage module 3 quantity of single energy-storage units module 5 and single energy-storage units module 5 and on the other hand in the negative rated current of single energy-storage module 3 and just in rectangular voltage/electric current adjustable range, be conditioned step by step between the rated current.
As shown in Figure 1, this energy storage device 1 has different current potentials at different somes running time on this lead-out terminal 1a, 1b, 1c, thereby and can not be used as direct voltage source simply.Especially in the power drive system of electric automobile, wish to be come to mains supply on the car of automobile by this energy storage device 1 usually, such as electrical network on electrical network on the high volt car or the low volt car.Thereby a kind of direct voltage capture device is provided, and this direct voltage capture device is designed to be connected on the energy storage device 1 for this reason, and powers to provide a direct voltage by it, such as being used for electrical network on the car of electric automobile.
Fig. 4 shows a kind of schematic diagram of system 200, and it has an energy storage device 1 and a kind of like this direct voltage capture device 8.This direct voltage capture device 8 is assembled terminal 8a, 8b by first on the one hand and is connected with this energy storage device 1 with 8c, and is coupled with it by the second gathering terminal 8g, 8h and 8i on the other hand.Can intercept a direct voltage U of terminal 8e and this direct voltage capture device 8 of 8f intercepting at this
ZKOn this intercepting terminal 8e and 8f such as being connected (unshowned) DC voltage converter, to be used for electrical network on the car of electric automobile, perhaps balance suitably should intercepting terminal 8e and 8f between voltage U
ZKUnder electrical network voltage condition on this car, also can directly link to each other with electrical network on this car.
This direct voltage capture device 8 has first half-bridge circuit 9, and it is assembled terminal 8a, 8b, 8c by first and is coupled with lead-out terminal 1a, 1b, the 1c of this energy storage device 1 respectively.This first assemble terminal 8a, 8b, 8c this such as the phase line 2a that can be coupled to this system 200,2b and 2c on.This first half-bridge circuit 9 can have a plurality of first diode 9a, and this first diode is coupled to respectively to be assembled on terminal 8a, one of 8b, 8c, so makes the respective anode of diode 9a and this phase line 2a, 2b or 2c be coupled.The negative electrode of this diode 9a can be connected on the public accumulation point of this first half-bridge circuit 9 together.On the accumulation point of this half-bridge circuit 9, have the instantaneous maximum potential of this phase line 2a, 2b or 2c thus respectively.In addition or a plurality of first commutating inductance coil 9b can be set, it is coupling in respectively between the first diode 9a and this accumulation point of this first half-bridge circuit 9.This first commutating inductance coil 9b can cushion potential fluctuation at this, wherein this potential fluctuation may be because the conversion of current potential step by step that control determines and occurring sometimes in corresponding phase line 2a, 2b or 2c, so make this first diode 9a more the lowland owing to frequent switching process is loaded.
This direct voltage capture device 8 has second half-bridge circuit 15 similarly, and it is assembled terminal 8g, 8h, 8i by second and is coupled with lead-out terminal 1a, 1b, the 1c of this energy storage device 1 respectively.This second assemble terminal 8g, 8h, 8i this such as the phase line 2a that can be coupled to this system 200,2b and 2c on.This second half-bridge circuit 15 can have a plurality of second diode 15a, and this second diode is coupled to second respectively to be assembled on terminal 8g, one of 8h, 8i, so makes the respective cathode of diode 15a and this phase line 2a, 2b or 2c be coupled.The anode of this diode 15a can be connected on the public accumulation point of this second half-bridge circuit 15 together.On the accumulation point of this second half-bridge circuit 15, have the instantaneous potential minimum of this phase line 2a, 2b or 2c thus respectively.In addition or a plurality of second commutating inductance coil 15b can be set, it is coupling in respectively between the second diode 15a and this accumulation point of this second half-bridge circuit 15.This second commutating inductance coil 15b can cushion potential fluctuation at this, wherein this potential fluctuation may be because the conversion of current potential step by step that control determines and occurring sometimes in corresponding phase line 2a, 2b or 2c, so make this second diode 15a more the lowland owing to frequent switching process is loaded.
This half- bridge circuit 9 and 15 one of two input terminals by its accumulation point and boost converter 14 respectively is coupled.Assemble at this and to have a potential difference between terminal, this potential difference can be by this boost converter 14 and boosted.This boost converter 14 is designed to provide a direct voltage U according to the potential difference between this half- bridge circuit 9 and 15 at intercepting terminal 8e, the 8f of this direct voltage capture device 8 at this for this reason
ZKThis boost converter 14 is such as a converter inductance coil 10 and an output diode 11 that can have series connection, and one of them governor switch element 12 is coupled its mid-point tap and this second half-bridge circuit 15.Perhaps this converter inductance coil 10 also can be arranged between this second half-bridge circuit 15 and this governor switch element 12, perhaps can two converter inductance coils 10 be set at two input terminals of this boost converter 14, these two converter inductance coils mutual magnetic coupling alternatively also namely can be wrapped on the same iron core in addition.Same this also is applicable to this output diode 11, this output diode or also can be arranged on this output tap 8f and this governor switch element 12 between.
This governor switch element 12 is such as having a power semiconductor switch, such as switch mosfet or IGBT switch.Such as can be for this governor switch element 12 adopts a n raceway groove IGBT, it ends under normal condition.But this should be clear and definite be can adopt other every kind power semiconductor switch for this governor switch element 12 equally.
Can abandon this governor switch element 12, perhaps this governor switch element 12 is remained on the state that ends for a long time, if always be positioned at by being connected within the given input voltage range of other elements on this intercepting terminal 8e, the 8f, so just especially like this in the potential difference between the gathering terminal of this half-bridge circuit 9 and 15.In this case, also can abandon this output diode 11 in some embodiments.
This direct voltage capture device 8 can also have an intermediate loop electric capacity 13 in addition, this intermediate loop electric capacity is connected between intercepting terminal 8e, the 8f of this direct voltage capture device 8, and this intermediate loop electric capacity is designed to the current impulse of being exported by this boost converter 14 is cushioned for this reason, thereby and generates a level and smooth direct voltage U in the output of this boost converter 14
ZKBy this intermediate loop electric capacity 13, so just such as the DC voltage converter power supply that can give electrical network on the car of electric automobile, perhaps also can be directly connected to this intermediate loop electric capacity 13 to electrical network on this car under specific circumstances.
The quantity of diode 9a and 15a such as being three, and is complementary with lead-out terminal 1a, the 1b of this energy storage device 1, the quantity of 1c in Fig. 4 in this half-bridge circuit 9 and 15.This should be clear and definite be, generate which kind of phase voltage according to this energy storage device 1, other every kind quantity of diode all is fine equally in this half- bridge circuit 9 and 15.
Fig. 5 shows the schematic diagram of a kind of system 300 with an energy storage device 1 and a direct voltage capture device 8.This system 300 is mainly that with system's 200 differences shown in Fig. 4 this direct voltage capture device 8 also has one in addition with reference to terminal 8d, and this is coupled with reference to electromotive force bus-bar 4 with reference to terminal and this energy storage device 1. Output diode 16a or 17a respectively have been connected with this between with reference to terminal 8d at the gathering terminal of this half-bridge circuit 9 and 15.Negative electrode at this this first compensation diode 16a is coupled with the accumulation point of this first half-bridge circuit 9, and this second compensates the anode of diode 17a and the accumulation point of this second half-bridge circuit 15 is coupled.
By this compensation diode 16a or 17a, may be limited to the current potential that has on the accumulation point of this half- bridge circuit 9 and 15, wherein this current potential downward or upward until have on reference to terminal 8d at this with reference to current potential.16a is restricted to this to the current potential on the gathering terminal of this half-bridge circuit 9 downwards with reference to current potential at this this compensation diode, and this compensation diode 17a upwards is restricted to this to the current potential on the gathering terminal of this half-bridge circuit 15 with reference to current potential.Under the small situation of stator voltage in this phase line 2a, 2b, 2c, such as small at rotating speed or under the inactive state of this motor 2, this also can guarantee sufficiently high potential difference between the input terminal of this boost converter 14, its mode is that the neutral point current potential of this motor 2 is increased or the unit value that descends.If be lower than a given threshold value in the potential difference between corresponding instantaneous maximum potential and corresponding instantaneous potential minimum on this lead-out terminal 1a, 1b at this energy storage device 1, the 1c, the neutral point current potential of this motor 2 can be enhanced by the output voltage that a plurality of energy that improve or reduce this energy storage device 1 are in the same manner supplied with branch roads or reduce so.Also namely, the output potential of all energy supply branch road Z is enhanced or reduces a unit value, and does not influence stator voltage and/or the stator current of this motor 2.Allow high compensation diode 16a the neutral point potential shift to of this motor 2 a less value, to improve the input voltage of this boost converter 14 at this.On the contrary, allow this compensation diode 17a the neutral point potential shift to of this motor 2 a bigger value, to improve the input voltage of this boost converter 14.Thereby one of these two compensation diode 16a or 17a can only be set also according to the present invention, allow to improve the input voltage of this boost converter 14 because it combines with the skew of neutral point current potential on respective direction of this motor 2, and do not influence stator voltage and the stator current of this motor 2 thus.For the fluctuation that causes owing to switching process is compensated, can be connected another commutating inductance coil 16b or 17b respectively with 17a with corresponding compensation diode 16a with being in series.
Fig. 6 shows a kind of schematic diagram of method 20, and this method is used for by an energy storage device, especially energy storage device 1 generates a direct voltage U
ZK, as in conjunction with shown in Fig. 1 to 5.This method utilizes the power drive system 200 or 300 of Fig. 4 or 5 to come to provide direct voltage U for electrical network on the car of electric automobile such as being used for
ZK
In the power drive system 200 according to Fig. 4, in a first step S1, can intercept a corresponding the highest instantaneous current potential at a plurality of lead-out terminal 1a, 1b, the 1c of this energy storage device 1.In the power drive system 200 according to Fig. 4, in second a step S2, can intercept a corresponding instantaneous minimum current potential at a plurality of lead-out terminal 1a, 1b, the 1c of this energy storage device 1.In a step S3, can utilize the potential difference between corresponding instantaneous maximum potential and corresponding instantaneous potential minimum a boost converter to boost then.Boosted potential difference can be used as direct voltage U in step S4
ZKAnd be provided.The direct voltage U that provides is provided in a step S5 alternatively
ZKCome to 13 power supplies of an intermediate loop electric capacity.Such as shown in Figure 5, if power drive system 300 has a compensation diode 16a, so just in a first step S1, intercept a corresponding the highest instantaneous current potential at a plurality of lead-out terminal 1a of this energy storage device 1,1b, 1c with reference to electromotive force bus-bar 4.Such as shown in Figure 5, if power drive system 300 has a compensation diode 17a, so just in second a step S2, intercept a corresponding instantaneous minimum current potential at a plurality of lead-out terminal 1a of this energy storage device 1,1b, 1c with reference to electromotive force bus-bar 4.
This method 20 is such as being used at power drive system 200 or 300 operation direct voltage capture devices 8.
Claims (17)
1. direct voltage capture device (8) that is used for energy storage device (1), this energy storage device has a plurality of energy and supplies with branch road (Z), this energy is supplied with branch road and is had a plurality of energy-storage modules (3) respectively, with a plurality of lead-out terminal (1a at this energy storage device (1), 1b, 1c) go up the generation alternating voltage, this direct voltage capture device has:
First half-bridge circuit (9), this first half-bridge circuit have a plurality of first to be assembled terminals (8c), this first is assembled terminal (1a, 1b one of 1c) are coupled with the lead-out terminal of this energy storage device (1) respectively for 8a, 8b;
Second half-bridge circuit (15), this second half-bridge circuit have a plurality of second to be assembled terminals (8i), this second is assembled terminal (1a, 1b one of 1c) are coupled with the lead-out terminal of this energy storage device (1) respectively for 8g, 8h; And
Boost converter (14), this boost converter is coupling between this first half-bridge circuit (9) and this second half-bridge circuit (15), and this boost converter is designed to according to potential difference between this first half-bridge circuit (9) and this second half-bridge circuit (15) for this reason and (8e provides direct voltage (U on 8f) at the intercepting terminal of this direct voltage capture device (8)
ZK).
2. direct voltage capture device according to claim 1 (8), wherein this first half-bridge circuit (9) has a plurality of first diodes (9a), this first diode be coupling in respectively this boost converter (14) and a plurality of first assemble terminals (8a, 8b, one of 8c) between.
3. direct voltage capture device according to claim 2 (8), wherein this first half-bridge circuit (9) has a plurality of first commutating inductance coils (9b), and this first commutating inductance coil is coupling in respectively between a plurality of first diodes (9a) and this boost converter (14).
4. according to the described direct voltage capture devices in one of claim 2 and 3 (8), wherein this second half-bridge circuit (15) has a plurality of second diodes (15a), this second diode is coupling in this boost converter (14) respectively and assembles terminal (8g with a plurality of first, 8h, one of 8i) between.
5. direct voltage capture device according to claim 4 (8), wherein this second half-bridge circuit (15) has a plurality of second commutating inductance coils (15b), and this second commutating inductance coil is coupling in respectively between a plurality of second diodes (15a) and this boost converter (14).
6. according to the described direct voltage capture devices in one of claim 4 and 5 (8), the anode of wherein said a plurality of first diodes (9a) first is assembled terminal (8a with this respectively, 8b, 8c) be coupled, and the negative electrode of described a plurality of second diodes (15a) second is assembled terminal (8g with this respectively, 8h 8i) is coupled.
7. according to the described direct voltage capture device of one of claim 1 to 6 (8), wherein this boost converter (14) has converter inductance coil (10), output diode (11) and by-pass cock element (12).
8. direct voltage capture device according to claim 7 (8), wherein this by-pass cock element (12) has power semiconductor switch.
9. according to the described direct voltage capture device of one of claim 1 to 8 (8), also have in addition:
Intermediate capacitance (13), this intermediate capacitance is coupling in the intercepting terminal (8e of this direct voltage capture device (8), 8f), and this intermediate capacitance is designed to for this reason: utilize these intercepting terminals (8e, 8f) present the current impulse that is generated by this boost converter (14), and with it with level and smooth direct voltage (U
ZK) transmit in the output of this boost converter (14).
10. according to the described direct voltage capture device of one of claim 1 to 9 (8), also have in addition:
The first compensation diode (16a), being coupled with reference to electromotive force bus-bar (4) of its anode and this energy storage device (1), first input end of its negative electrode and this boost converter (14) is coupled; And/or
The second compensation diode (17a), being coupled with reference to electromotive force bus-bar (4) of its negative electrode and this energy storage device (1), second input terminal of its anode and this boost converter (14) is coupled.
11. power drive system (200; 300), it has:
Energy storage device (1), this energy storage device (1) have a plurality of energy and supply with branch roads (Z), and this energy is supplied with branch road and had a plurality of energy-storage modules (3) respectively, so that (1a, 1b generate alternating voltage on 1c) at a plurality of lead-out terminals of this energy storage device (1); And
According to the described direct voltage capture device of one of claim 1 to 10 (8), first of this direct voltage capture device is assembled terminal (8a, 8b, 8c) and second assemble terminal (8g, 8h, 8i) respectively with the lead-out terminal (1a of this energy storage device (1), 1b one of 1c) is coupled.
12. power drive system (200 according to claim 11; 300), also have in addition:
N phase motor (2) with n phase terminal, (1a, 1b's lead-out terminal of this motor and this energy storage device (1) 1c) are coupled, wherein n 〉=1.
13. one kind generates direct voltage (U from energy storage device (1)
ZK) method (20), wherein this energy storage device has a plurality of energy and supplies with branch roads (Z), this energy is supplied with branch road and is had a plurality of energy-storage modules (3) respectively, with a plurality of lead-out terminal (1a at this energy storage device (1), 1b 1c) goes up the generation alternating voltage, and this method has following step:
A plurality of lead-out terminals (1a, 1b, 1c) last intercepting (S1) corresponding the highest instantaneous current potential at this energy storage device (1);
A plurality of lead-out terminals (1a, 1b, 1c) last intercepting (S2) corresponding instantaneous potential minimum at this energy storage device (1);
Potential difference between corresponding instantaneous maximum potential and corresponding instantaneous potential minimum is utilized boost converter (14) boost (S3); And
(S4) is provided the direct voltage (U relevant with the potential difference of boosting
ZK).
14. method according to claim 13 (20) has following steps:
Intercepting (S1) and corresponding instantaneous maximum potential on reference electromotive force bus-bar 4 last at a plurality of lead-out terminals (1a, 1b, 1c) of this energy storage device (1).
15. according to claim 13 or 14 described methods (20), have following steps:
Intercepting (S2) and corresponding instantaneous potential minimum on reference electromotive force bus-bar 4 last at a plurality of lead-out terminals (1a, 1b, 1c) of this energy storage device (1).
16. according to the described method of one of claim 13 to 15 (20), also have following steps in addition:
The direct voltage (U that provides
ZK) present (S5) to intermediate loop electric capacity (13).
17. method according to claim 16 (20), this method is used for utilizing power drive system (200 according to claim 11; 300) provide described direct voltage (U for electrical network on the car of electric automobile
ZK).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210202855 DE102012202855A1 (en) | 2012-02-24 | 2012-02-24 | Direct voltage tap assembly for energy storage device for electrical propulsion system, has boost converter located between half-bridge circuits based on potential difference between circuits and direct current voltage |
| DE102012202855.2 | 2012-02-24 |
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| CN201310056725.8A Active CN103296910B (en) | 2012-02-24 | 2013-02-22 | Direct voltage capture device for energy storage device and method for generating direct voltage by energy storage device |
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| Country | Link |
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| CN (1) | CN103296910B (en) |
| DE (1) | DE102012202855A1 (en) |
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| CN104682823A (en) * | 2013-11-29 | 2015-06-03 | 罗伯特·博世有限公司 | Electrical driving system having an energy storage device and method for operating the energy storage device |
| CN105659488A (en) * | 2013-10-28 | 2016-06-08 | 罗伯特·博世有限公司 | Charging circuit for an energy storage device and method for charging an energy storage device |
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| FR3026384B1 (en) * | 2014-09-29 | 2021-05-14 | Dcns | UNDERWATER MACHINE EQUIPPED WITH A MULTI-LEVEL SUPPLY NETWORK |
| JP7464020B2 (en) * | 2021-08-24 | 2024-04-09 | トヨタ自動車株式会社 | Power System |
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| WO2002063758A1 (en) * | 2001-02-07 | 2002-08-15 | Abb Ab | A converter device and a method for the control thereof |
| CN101682194A (en) * | 2007-06-15 | 2010-03-24 | 艾思玛太阳能技术股份公司 | Apparatus for feeding electrical energy into an energy supply system and DC voltage transformer for such an apparatus |
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| CN102263524A (en) * | 2010-02-16 | 2011-11-30 | 英飞凌科技股份有限公司 | Circuit Arrangement Including A Multi-level Converter |
| WO2011128139A1 (en) * | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Coupling unit and battery module having an integrated pulse-controlled inverter and increased reliability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105659488A (en) * | 2013-10-28 | 2016-06-08 | 罗伯特·博世有限公司 | Charging circuit for an energy storage device and method for charging an energy storage device |
| CN104682823A (en) * | 2013-11-29 | 2015-06-03 | 罗伯特·博世有限公司 | Electrical driving system having an energy storage device and method for operating the energy storage device |
| CN104682823B (en) * | 2013-11-29 | 2019-08-13 | 罗伯特·博世有限公司 | The method of power drive system and operation energy Storage Device with energy Storage Device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2987524A1 (en) | 2013-08-30 |
| CN103296910B (en) | 2017-04-26 |
| DE102012202855A1 (en) | 2013-08-29 |
| FR2987524B1 (en) | 2016-08-12 |
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