CN103296714B - Charging circuits for energy storage apparatus and method for charging for energy storage apparatus - Google Patents
Charging circuits for energy storage apparatus and method for charging for energy storage apparatus Download PDFInfo
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- CN103296714B CN103296714B CN201310056787.9A CN201310056787A CN103296714B CN 103296714 B CN103296714 B CN 103296714B CN 201310056787 A CN201310056787 A CN 201310056787A CN 103296714 B CN103296714 B CN 103296714B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 190
- 238000007600 charging Methods 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims description 26
- 230000008878 coupling Effects 0.000 claims description 46
- 238000010168 coupling process Methods 0.000 claims description 46
- 238000005859 coupling reaction Methods 0.000 claims description 46
- 239000004065 semiconductor Substances 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 9
- 238000010278 pulse charging Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 20
- 238000009825 accumulation Methods 0.000 description 9
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
- B60L2210/10—DC to DC converters
- B60L2210/12—Buck converters
-
- 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
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/527—Voltage
-
- 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
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/529—Current
-
- 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
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
-
- 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
-
- 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
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention relates to charging circuits (30 and 40) for an energy storage apparatus (1). The charging circuit comprises a half-bridge circuit (9) provided with a plurality of feed terminals (8a, 8b and 8c), first feed nodes (37a, 37b and 47a) coupled with the half-bridge circuit (9), second feed nodes (37a, 37b and 47a) coupled with a reference electric-potential rail (4) of the energy storage apparatus (1), buck converters (31, 32, 33; 41, 32 and 33) coupled between the first feed nodes (37a, 37b and 47a) and the second feed nodes (37a, 37b and 47a), and feed circuits (35; 44 and 45) coupled with input terminals of the buck converters (31, 32, 33; 41, 32 and 33).
Description
Technical field
The present invention relates to be used for the charging circuit and the method charged to energy storage device of energy storage device, it is particularly useful for utilizing
DC voltage charges to the direct inverter of battery.
Background technology
It can be seen that in the future not only in fixed application, such as wind energy plant or solar facilities, also in the car, than
Such as mixing or electric automobile, more electronic systems are used, and these electronic systems are by new energy storage technology and electric drive technology
Combine.
In motor, the feed of multiphase current is realized generally by with a kind of inverter of Pulse Inverter form.For this
Can the DC voltage inversion provided by intermediate DC circuit be a polyphase ac voltage, such as three-phase alternating current
Pressure.The intermediate DC circuit here is fed by a branch road of series-connected battery modules.In order to meet for corresponding
Using and the given requirement to power and energy, be a traction cell generally the series connection of multiple battery modules.
The problem brought by the series circuit of multiple battery modules is, if a unique battery module failure, that
Whole branch road just fails.This failure of feed leg may cause the failure of whole system.Single battery module is temporary in addition
When or the permanent power drop for occurring may cause the power drop in whole feed leg.
A kind of battery system with integrated inverse function is described in 5,642,275 A1 of file US.This system
Referred to as multi-stage cascade inverter or the direct inverter of battery（Batteriedirektumrichter,BDI）.This system is included
Have with the DC source of multiple energy-storage module branch road forms, which can be directly connected to a motor or an electrical network.Here can
To generate the feed voltage of single-phase or multiphase.The energy-storage module branch road here has the energy-storage module of multiple series connection, wherein each
Energy-storage module all has at least one battery unit and the controllable coupling unit belonging to, its allow according to control signal come across
At least one battery unit belonging to more corresponding, or at least one battery unit belonging to corresponding is connected to corresponding energy storage
In module branch road.The here coupling unit so can be constructed so which is also allowed in addition at least one belonging to corresponding
Battery unit is also connected in corresponding energy-storage module branch road with the polarity for inverting, or also disconnects corresponding energy-storage module
Road.By suitably controlling the coupling unit, such as by pulsewidth modulation, it is also possible to provide suitable phase signal to control phase
Position output voltage, so that discrete Pulse Inverter can be abandoned.It is inverse for controlling pulse needed for phase output voltage
Become device so as to be integrated in so-called BDI.
BDI generally has higher efficiency, a higher fail safe and at which relative to conventional system
Significantly higher harmonic content in output voltage.The fail safe particularly by guarantee of such as getting off, i.e. failure, failure or
Not exclusively effectively battery unit can be spanned in the feed leg by the coupling unit suitably controlled belonging to which.
The phase output voltage of one energy-storage module branch road can be changed by correspondingly controlling the coupling unit, and especially step by step
Ground is adjusting.The level here of the output voltage is made up of the voltage of single energy-storage module, wherein the phase output electricity of maximum possible
Pressure is determined by all energy-storage module sums of an energy-storage module branch road.
This document DE 10 2,010,027 861 A1 of 10 2,010 027 857 A1 and DE are such as disclosed with multiple batteries
The direct inverter of battery of module branch road, which is can be directly connected on a motor.
Constant DC voltage is not provided in the output of BDI, because the energy-storage units are divided into different energy-storage modules,
And its coupling device must be controlled targetedly to generate a current potential.Due to this division, DBI is substantially not as direct current
Voltage source providing, such as the feed of electrical network on electric automobile.Therefore the energy storage is given by conventional direct voltage source
Unit charges nor easily realizing.
One kind side so as to need for a kind of a kind of charging circuit of energy storage device and for driving the energy storage device
Method, so that a DC voltage can be adopted to charge to the energy-storage units of the energy storage device.
The content of the invention
According on one side, the invention provides for a kind of a kind of charging circuit of energy storage device, the wherein energy storage is filled
Putting and branch road being supplied with multiple energy, the energy supply branch road accordingly has multiple energy-storage modules, with many of the energy storage device
An alternating voltage is generated on individual lead-out terminal, the charging circuit has a half-bridge circuit, and the half-bridge circuit has multiple feedbacks
Electric terminal, the current feed terminal are coupled with one of the lead-out terminal of the energy storage device respectively, and the charging circuit is also with one the
One feed node, first feed node are coupled with the half-bridge circuit, and the charging circuit also has second feed node,
One of second feed node and the energy storage device is coupled with reference to potential bus-bar, and the charging circuit also has a blood pressure lowering
Changer, the buck converter are coupling between first feed node and second feed node, and the buck converter
A DC current is designed to provide for this to charge to the energy-storage module, and the charging circuit is also with a feed electricity
Road, the feed circuit are coupled with the input terminal of the buck converter, and the feed circuit is designed at least even for this
You provide a charging DC voltage for the buck converter.
According on the other hand, present invention also offers a kind of power drive system, the system is with an energy storage device, the storage
There can be multiple energy to supply branch road, the energy supply branch road has multiple energy-storage modules respectively, with many of the energy storage device
An alternating voltage is generated on individual lead-out terminal, the power drive system also has a charging circuit of the invention, and this fills
The current feed terminal of circuit is coupled with one of the lead-out terminal of the energy storage device respectively, the second feed node of the charging circuit
It is coupled with reference to potential bus-bar with one of the energy storage device, the power drive system also intercepts dress with a DC voltage
Put, the DC voltage capture device with one with reference to terminal, the second feed node phase of the reference terminal and the charging circuit
Coupling, the DC voltage capture device also have a booster converter, and the booster converter is coupling in the of the charging circuit
Between one feed node and the reference terminal, and the booster converter is designed to for this according in the half-bridge circuit and the ginseng
A DC voltage is provided on the intercepting terminal of the DC voltage capture device according to the current potential between terminal.The here blood pressure lowering becomes
The changer inductance coil of parallel operation is the changer inductance coil of the booster converter of the DC voltage capture device simultaneously.
According on the other hand, the invention provides for a kind of method charged to a kind of energy storage device, the wherein energy storage
Device has multiple energy supply branch roads, and the energy supply branch road has multiple energy-storage modules respectively, with the energy storage device
An alternating voltage is generated on multiple lead-out terminals, the method at least generates one once in a while with according to a charging DC voltage
The step of individual DC current, the step in the energy storage device is input to DC current by a half-bridge circuit, wherein should be partly
Bridge circuit has multiple current feed terminals, and the current feed terminal is coupled with one of the lead-out terminal of the energy storage device respectively, the method
Also with by the energy storage device with reference to potential bus-bar come flow back the DC current the step of.
The idea of the present invention is, a circuit and energy storage device, the output of the direct inverter of especially one battery
It is coupled, one DC voltage can be input in the output of the energy storage device using the circuit, with to the energy storage device
Energy-storage units charge.Specify for this, a diode half-bridge is coupled to the output of the energy storage device as feeder equipment
On terminal, the charging current of the charging circuit can be input into by all lead-out terminals using the diode half-bridge.Here is outstanding
Which advantageously can adopt a diode half-bridge of DC voltage capture device as the feeder equipment of the charging circuit,
Wherein the DC voltage capture device is provided for providing another DC potential, such as give the car from the energy storage device
One intermediate loop electric capacity feed of electrical network.
One remarkable advantage of the charging circuit is that it is mutually compatible with DC voltage capture device, that is, the charging circuit
Mutually do not hindered with the DC voltage capture device in operation.Another advantage is, for constructing a charging circuit simultaneously
Can remain with the number of elements of a DC voltage capture device it is small because some parts have dual-use function.Thus
Reduce element demand and thereby reduce component space demand and system weight, especially in power drive system, such as in electricity
In electrical automobile.
Charging circuit that advantageously can be according to the running status of the energy storage device on the one hand is straight with another aspect
Selected between effective operation of stream voltage capture device.Such as can transport in the traveling of the electric automobile with energy storage device
The DC voltage capture device is opened in row mode, the wherein energy storage has charging circuit and DC voltage capture device, and
The charging circuit can be opened in the still-mode of the automobile.
By a diode half-bridge is used as feeder equipment, it can be advantageous to ensure to fill to the energy storage device input
Electric flux, because the energy storage device each energy supply branch road has a bipolar voltage range of accommodation.
According to an embodiment of charging circuit of the present invention, the half-bridge circuit can have multiple diodes, two pole
Pipe is connected between one of the first feed node and multiple current feed terminals.In an advantageous embodiment, the half-bridge
Circuit can have multiple commutating inductance coils, and the commutating inductance coil is respectively coupled in multiple diodes with the first feed section
Between point.Fluctuation thus, it is possible to compensate or be buffered in current potential on lead-out terminal, especially control the energy storage device it is specific when
Between put when high-frequency fluctuation.
According to the another embodiment of charging circuit of the present invention, the buck converter can have a changer inductor wire
Circle, a fly-wheel diode and a semiconductor switch.In an advantageous embodiment, the semiconductor switch can have
There are a power semiconductor switch, such as one switch mosfet or IGBT switches.
According to the another embodiment of charging circuit of the present invention, the feed circuit can be with a feed electric capacity, the electricity
Appearance is coupling between the input terminal of the charging circuit, and the electric capacity is designed to by the buck converter provide for this
The charging DC voltage, charge to the energy-storage module.
According to the another embodiment of charging circuit of the present invention, the feed circuit has a transformator and a full-bridge whole
Stream device, the armature winding of the wherein transformator are coupling between the input terminal of the charging circuit, and the full-bridge rectifier is coupling in
On the secondary windings, and the full-bridge rectifier is designed to provide a pulsed dc voltage for this, to be become by the blood pressure lowering
Parallel operation charges to the energy-storage module.
According to an embodiment of drive system of the present invention, the drive system it can in addition contain have a n phase motor,
The motor has n phase terminal, and the phase terminal is coupled with the lead-out terminal of the energy storage device, wherein n >=1.
According to the another embodiment of drive system of the present invention, the drive system is it can in addition contain having first antipole
Property protection diode（Verpolschutzdiode）, reverse polarity protection's diode-coupled is in the DC voltage capture device
Intercept between terminal.
According to the another embodiment of drive system of the present invention, the drive system is it can in addition contain having second antipole
Property protection diode, reverse polarity protection's diode-coupled is between the input terminal of the charging circuit.
According to an embodiment of the inventive method, the method is it can in addition contain including using a buck converter
To the step of the charging DC voltage blood pressure lowering, wherein the buck converter has changer inductance coil, an afterflow two
Pole pipe and a semiconductor switch.
According to an embodiment of the inventive method, the method is it can in addition contain including the operation to the energy storage device
The step of state is detected, and the semiconductor switch of the buck converter is selected according to the running status for being detected
The step of property disconnects.
According to an embodiment of the inventive method, the method can be used for using the present invention power drive system come to
The energy storage device of electric automobile charges.
Other feature and advantage of embodiment of the present invention are referring to combining being illustrated below for accompanying drawing.
Description of the drawings
Wherein：
Fig. 1 shows the schematic diagram of with energy storage device system；
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 show according to an embodiment of the invention intercept dress with an energy storage device and DC voltage
A kind of schematic diagram of the system put；
Fig. 5 show according to another embodiment of the invention intercept dress with an energy storage device and DC voltage
A kind of schematic diagram of the system put；
Fig. 6 shows a charging of the energy supply branch road for energy storage device according to another embodiment of the invention
The schematic diagram of circuit；
Fig. 7 shows a charging of the energy supply branch road for energy storage device according to another embodiment of the invention
The schematic diagram of circuit；
Fig. 8 show according to another embodiment of the invention with an energy storage device, a charging circuit and one
A kind of schematic diagram of the system of DC voltage capture device；
Fig. 9 show according to another embodiment of the invention with an energy storage device, a charging circuit and one
A kind of schematic diagram of the system of DC voltage capture device；
Figure 10 show according to another embodiment of the invention with an energy storage device, a charging circuit and one
A kind of schematic diagram of the system of DC voltage capture device；And
Figure 11 shows a kind of signal of the method for charging to energy storage device according to another embodiment of the invention
Figure.
Specific embodiment
Fig. 1 shows a kind of schematic diagram of the system 100 with energy storage device 1, with provided in the energy-storage module 3
DC voltage incoming call buckling turn to n cross streams voltages.The energy storage device 1 includes multiple energy supply branch road Z, wherein in figure
Three are illustrated in 1, which is suitable to such as electric rotating machine 2 generate three-phase alternating voltage.It is apparent that other every kind of numbers
The energy supply branch road Z of amount is equally possible.Energy supply branch road Z can have multiple energy-storage modules 3, and which is in the energy
It is in series in amount supply branch road Z.Such as each energy supply branch road Z shows each three energy-storage modules 3 in FIG, but wherein
The energy-storage module 3 of other every kind of quantity is equally possible.The energy storage device 1 has on each energy supply branch road Z
One lead-out terminal 1a, 1b and 1c, the lead-out terminal are connected respectively on phase line 2a, 2b and 2c.
It can in addition contain include a control device 6, the control device is connected the system 100 with the energy storage device 1,
And the energy storage device 1 can be controlled by the control device, to provide desired defeated in corresponding lead-out terminal 1a, 1b and 1c
Go out voltage.
The energy-storage module 3 has two lead-out terminals 3a and 3b respectively, can provide the energy-storage module 3 by the terminal
One output voltage.Because the energy-storage module 3 is connected first, the output voltage of the energy-storage module 3 is added always becomes one
Output voltage, total output voltage can be provided in corresponding output terminals 1a, 1b of the energy storage device 1 and 1c.
The example constructions form of the energy-storage module 3 is illustrated in greater detail in figs 2 and 3.3 here of energy-storage module is included
There is a corresponding coupling device 7, the coupling device has multiple coupling unit 7a, 7c and 7b if necessary and 7d.The energy storage
Module 3 has comprised in addition a corresponding energy-storage units module 5, and which has energy-storage units 5a that one or more are in series extremely
5k。
5 here of energy-storage units module can such as have the battery 5a to 5k of series connection, such as lithium ion battery.Here exists
In energy-storage module 3 shown in Fig. 2 and 3, the quantity of energy-storage units 5a to 5k is such as two, but the wherein storage of other every kind of quantity
Unit 5a to 5k is equally possible for energy.
The energy-storage units module 5 is connected with the input terminal of affiliated coupling device 7 by connecting line.The coupling device 7
In fig. 2 for example as the full-bridge circuit respectively with two coupling units 7a, 7c and two coupling units 7b, 7d constructing.Should
Coupling unit 7a, 7b, 7c, 7d here can the active switching element and therewith simultaneously with such as semiconductor switch respectively
One fly-wheel diode of connection.Here it can be stated that coupling unit 7a, 7b, 7c, 7d as with internal body diodes
Switch mosfet or IGBT switch to construct.Or two coupling units 7a, 7d can also be only constructed respectively, such as show in figure 3
Shown in example, so that realizing an asymmetric half-bridge circuit.
The coupling unit 7a, 7b, 7c, 7d so can be controlled, and such as by control device 6 shown in FIG, make
Obtain corresponding energy-storage units module 5 to be used to selectively connect between lead-out terminal 3a and 3b, or the energy-storage units mould
Block 5 is spanned.With reference to Fig. 2, the energy-storage units module 5 such as can be connected between lead-out terminal 3a and 3b with forward direction, its side
Formula is that the active switching element of coupling unit 7d and the active switching element of coupling unit 7a are arranged to closure state,
And other two active switching elements of coupling unit 7b and 7c are arranged to off-state.Such as can be such across state
To adjust, i.e. two active switching elements of coupling unit 7a and 7b are arranged to closure state, and coupling unit 7c and
Two active switching elements of 7d are arranged to off-state.One second so can be adjusted across state, i.e. the coupling list
Two active switching elements of first 7a and 7b are retained as off-state, and two active switch units of coupling unit 7c and 7d
Part is arranged to closure state.Finally the energy-storage units module 5 such as can with Opposite direction connection between lead-out terminal 3a and 3b,
Its mode is that the active switching element of the active switching element and coupling unit 7c of coupling unit 7b is arranged to closure
State, and two other active switching element of coupling unit 7a and 7d is arranged to off-state.Similar consideration also may be used
With respective needle to the asymmetry half-bridge circuit in Fig. 3 implementing.By suitably controlling the coupling device 7, so as to the energy storage mould
Several energy-storage units modules 5 of block 3 targetedly and with arbitrary polarity can be integrated in the string that an energy supplies branch road
In connection circuit.
The system 100 such as in FIG for feeding to a three phase electric machine 2, such as in the electric drive of electric automobile
In system.But can also regulation adopt the energy storage device 1 come for power supply grid 2 generate electric current.Energy supply branch road Z can be
Which is connected to one end of neutral point and a reference current potential 4（With reference to potential bus-bar）It is connected.The reference current potential 4 such as can be with
It is a ground potential.Without in addition with being connected with reference to current potential outside the power supply 1, energy supply branch road Z's
The current potential for being connected to neutral point one end is can be determined that with reference to current potential according to definition.
In order to mutually electric with reference to one is generated between potential bus-bar 4 with opposite side in side lead-out terminal 1a, 1b and 1c
Pressure, is usually only necessary to a part for the energy-storage units module 5 of the energy-storage module 3.Its coupling device 7 so can be controlled, and make
On the one hand the total output voltage for obtaining an energy supply branch road Z can be counted in the energy-storage module 3 that is multiplied by of single energy-storage units module 5
The negative voltage of amount and single energy-storage units module 5 are multiplied by between the positive voltage of 3 quantity of energy-storage module and on the other hand in list
It is conditioned in rectangular voltage/electric current range of accommodation between the negative rated current and positive rated current of individual energy-storage module 3 step by step.
As shown in figure 1, this energy storage device 1 has not in different run time points on the lead-out terminal 1a, 1b, 1c
Same current potential, and thereby can not simply be used as direct voltage source.It is especially in the power drive system of electric automobile, generally uncommon
Prestige is powered come electrical network on the car to automobile by the energy storage device 1, electrical network on electrical network or low volt car on such as high volt car.So as to
There is provided a kind of DC voltage capture device, the DC voltage capture device is designed to connect to an energy storage device 1 for this
On, and powered to provide a DC voltage by which, such as electrical network on the car of electric automobile.
Fig. 4 shows a kind of schematic diagram of system 200, and there is an energy storage device 1 and such a DC voltage to cut for which
Take device 8.8 one side of DC voltage capture device is connected with the energy storage device 1 by terminal 8a, 8b and 8c, and another
Aspect is coupled with reference to terminal 8d therewith by one.The DC voltage can be intercepted on the intercepting terminal 8e and 8f and intercepts dress
Put a 8 DC voltage UZK.One can such as be connected on the intercepting terminal 8e and 8f（It is unshowned）Unidirectional current buckling
Parallel operation, for electrical network on the car of electric automobile, or is suitably balancing the voltage U between the intercepting terminal 8e and 8fZKWith
On the car in the case of line voltage, it is also possible to be joined directly together with electrical network on the car.
The DC voltage capture device 8 has a half-bridge circuit 9, its pass through to assemble terminal 8a, 8b, 8c respectively with the storage
Lead-out terminal 1a, 1b, 1c of energy device 1 is coupled.Aggregation terminal 8a, 8b, 8c here such as may be coupled to the system 200
Phase line 2a, 2b and 2c on.The half-bridge circuit 9 can have multiple diode 9a, and the diode is respectively coupled to assemble terminal
On 8a, 8b, 8c, so that the respective anode of diode 9a is coupled with phase line 2a, 2b and 2c.The negative electrode of diode 9a
The common accumulation point of the half-bridge 9 is connected to together can（Sammelpunkt）On.Thus in the accumulation point of the half-bridge circuit 9
There are the instantaneous maximum potential of phase line 2a, 2b or 2c.In addition or multiple commutating inductance coil 9b, its difference can be set
It is coupling between diode 9a and the accumulation point.Commutating inductance coil 9b heres can buffer potential fluctuation, wherein the electricity
Position fluctuation is converted by the current potential step by step determined by control and is occurred in corresponding phase line 2a, 2b or 2c once in a while, is so made
Obtain diode 9a to be loaded due to Jing normal switching process lower.
The DC voltage capture device 8 is in addition also with one with reference to terminal 8d, the reference terminal and the energy storage device 1
One is coupled with reference to potential bus-bar 4.The half-bridge circuit 9 accumulation point and this with reference between terminal 8d so as to there is one
Potential difference, the potential difference can be boosted by a booster converter 14, and the booster converter is coupling in the half-bridge circuit 9
Between reference terminal 8d.14 here of booster converter is designed to according in the half-bridge circuit 9 and reference terminal 8d
Between current potential and on intercepting terminal 8e, 8f of the DC voltage capture device 8 provide a DC voltage UZK.This liter of buckling
Parallel operation 14 can such as have a changer inductance coil 10 and an output diode 11 of series connection, one of actuator
Switch element 12 is coupled its mid-point tap with this with reference to terminal 8d.Or the changer inductance coil 10 can also be arranged on
Between the reference terminal 8d and the governor switch element 12, or can be on the two of the booster converter 14 input terminals
Two changer inductance coils 10 are set.Same this is also applied for the output diode 11, the output diode or can also
It is arranged between the output tap 8f and the governor switch element 12.
The governor switch element 12 can such as have a power semiconductor switch, such as switch mosfet or IGBT
Switch.Such as a n-channel IGBT can be adopted for the governor switch element 12, what which was off in normal state.
But here is it should be clear that equally can adopt other every kind of power semiconductor switch for the governor switch element 12.
The governor switch element 12, or the shape for the governor switch element 12 being maintained at permanent cut-off can be abandoned
State, if the half-bridge circuit 9 aggregation terminal and this be always located in by being connected to this section with reference to the potential difference between terminal 8d
Take within the given input voltage range of other elements on terminal 8e, 8f, then just especially so.In this case,
The output diode 11 can also be abandoned in some embodiments.
It can in addition contain have an intermediate loop electric capacity 13, the intermediate loop electric capacity connects the DC voltage capture device 8
It is connected between intercepting terminal 8e, 8f of the DC voltage capture device 8, and the intermediate loop electric capacity is designed to by the liter
Row buffering is entered in the current impulse exported by buckling parallel operation 14, and thereby generation one is smoothed in the output of the booster converter 14
DC voltage UZK.By the intermediate loop electric capacity 13, then just can such as give the unidirectional current of electrical network on the car of electric automobile
Buckling parallel operation is powered, or electrical network on the car can also be directly connected to the intermediate loop electric capacity 13 under specific circumstances.
In the half-bridge 9, the quantity of diode 9a is such as three in the diagram, and the outfan with the energy storage device 1
The quantity of sub- 1a, 1b, 1c matches.Here it should be clear which kind of phase voltage generated according to the energy storage device 1, at this
In half-bridge circuit 9, other every kind of quantity of diode are all equally possible.
Fig. 5 shows a kind of signal of the system 300 with an energy storage device 1 and a DC voltage capture device 8
Figure.The system 300 is essentially consisted in 200 difference of system shown in Fig. 4, and its negative electrode is connected to the storage by diode 9a
Can phase line 2a, 2b of device 1, on 2c.So as on the accumulation point of the half-bridge circuit 9 in the DC voltage capture device 8 of Fig. 5
It is constantly present the corresponding instantaneous potential minimum of phase line 2a, 2b, 2c.In the half-bridge electricity in the DC voltage capture device 8 of Fig. 5
The accumulation point on road 9 and this can pass through the booster converter 14 with reference to a potential difference, the potential difference are there is also between terminal 8d
And boost as DC voltage UZK。
In order to the energy-storage module 3 for giving the energy storage device 1 of Fig. 4 or 5 charges, need to implement a charging circuit, the charging electricity
Road can be combined with the DC voltage capture device 8, and does not affect its function.Preferably the charging circuit should be made jointly
With the part of the DC voltage capture device 8 so that element demand and installing space demand remain it is as small as possible.
Fig. 6 and 7 shows the schematic diagram of charging circuit 30 and 40, and the wherein charging circuit is such as used to energy storage
The energy supply branch road Z of device 1 charges.
Fig. 6 shows the schematic diagram of a charging circuit 30, and the charging circuit has input terminal 36a, 36b, defeated at this
Enter a charging DC voltage U on terminalN.Charging DC voltage UNHere can pass through（It is unshowned）Circuit
Configuration generating, such as DC voltage converter, with PFC（PFC,“power factor correction”）
Or the like controlled or modulated commutator.Charging DC voltage UNCan such as pass through what input side was connected
Power supply grid is providing.The charging circuit 30 is it can in addition contain have an intermediate loop electric capacity 35, electric by the intermediate loop
Appearance can intercept a DC voltage, and the intermediate loop electric capacity significantly reduces pulse current and the charging circuit 30 is input into
Side and the feedback of outlet side, or significantly reduce in charging circuit breaker in middle process itself to charging DC voltage UN
Feedback.An output voltage of the charging circuit 30 can be intercepted in feed node 37a and 37b of the charging circuit 30
UL, energy storage configuration that the output voltage is used to be connected in feed node 37a and 37b, such as in Fig. 1 to 5
One branch road of the series circuit or an energy storage device 1 of shown energy-storage module 5 charges.
The charging circuit 30 has 33, fly-wheel diode 32 of a semiconductor switch and a changer inductance coil
31, which realizes a buck converter.The arrangement of the obvious semiconductor switch 33 of here and/or the changer inductance coil 31
Can be changed in the current loop of corresponding charging circuit 30, so that such as the changer inductance coil 31 also may be used
To be arranged between the fly-wheel diode 32 and feed node 37b.The same semiconductor switch 33 can also be connected to this and continue
Between stream diode 32 and input terminal 36b.As charging current I for flowing through the changer inductance coil 31LRegulated quantity
Energy storage configuration to be charged, the series circuit of energy-storage module 5 such as shown in Fig. 1 to 5 or a storage can such as be adopted
The output voltage of one branch road of energy device 1, or using the arteries and veins implemented by semiconductor switch 33 of the buck converter
Rush dutycycle.Or can also be the input voltage U on the intermediate loop electric capacity 35NCome as charging current ILRegulated quantity.
The buck converter such as can also be driven with constant pulse duty factor 1 in a running status, such as
This allows the semiconductor switch 33 muchly to close.Here can also be abandoned the semiconductor switch 33 and have two pole of afterflow
The continuous current circuit of pipe 32.
Fig. 7 shows the schematic diagram of a charging circuit 40, and the charging circuit has input terminal 46A, 46b, defeated at this
Enter a charging alternating voltage U on terminalch.Charging alternating voltage UchHere can pass through（It is unshowned）Electricity
Road configures to generate, such as inverter full-bridge or the like.The charging alternating voltage preferably have a rectangular gap or
Gapless curve and a high fundamental frequency.Charging alternating voltage UchSuch as can pass through input side connected have after
Connect the power supply grid of inverter bridge to provide.The charging circuit 40 it can in addition contain have a transformator 45, the transformator
Armature winding is coupled with the input terminal 46a, 46b.The secondary windings of the transformator 45 can be made up of four diodes
A full bridge rectifier circuit 44 be coupled, a pulsed dc voltage U can be intercepted on the outputN.The pulse direct current
The change of the gap length of voltage can pass through to change the charging alternating voltage U wherein on the armature winding of the transformator 45ch
And thereby the respective secondary voltage on 45 secondary windings of transformator has the time interval of value 0 carrying out.In the charging electricity
The output voltage U of the charging circuit 40 can be intercepted in feed node 47a and 47b on road 40L, the output voltage is used to
Energy storage configuration on being connected to feed node 47a and 47b, a series connection of the energy-storage module 5 such as shown in Fig. 1 to 5
One branch road of circuit or an energy storage device 1 is charging.
The charging circuit has a fly-wheel diode 42 and a changer inductance coil 41, wherein the changer inductance
Coil 41 is used for the smooth pulsed dc voltage U provided by the full bridge rectifier circuit 44N.The obvious changer inductance of here
Arrangement of the coil 41 in the related circuit of the charging circuit 40 can be change, so that the such as changer inductor wire
Circle 41 can also be connected between the fly-wheel diode 42 and feed node 47b.As flowing through the changer inductance coil 41
Charging current ILRegulated quantity, can such as adopt energy storage configuration to be charged, the energy storage mould such as shown in Fig. 1 to 5
The output voltage of one branch road of one series circuit or the energy storage device 1 of block 5, or the pulsed dc voltage can be adopted
UNDC component.
Can be not added with another embodiment alternatively abandoning the fly-wheel diode 42.In this case, the full-bridge
The diode extra reception of rectifier circuit 44 function of the fly-wheel diode 42.Thereby saving an element, but on the contrary
Reduce the efficiency of the charging circuit 40.
Show in Fig. 8,9 and 10 charging circuit 30 and 40 of Fig. 6 or 7 how with the system 200 of Figure 4 and 5 or
300 combined embodiments.System 400,500 or 600 of the here shown in Fig. 8,9 and 10 advantageously, accordingly
Charging circuit 30 or 40 be especially used in conjunction with 14 institute of the buck converter and booster converter with the DC voltage capture device 8
The changer inductance coil 10 or 31 or 41 for needing and half-bridge 9.
Charging circuit 39 shown in figure 6 is combined as a system with system 200 shown in the diagram in fig. 8
400, the wherein system 200 has an energy storage device 1 and a DC voltage capture device 8.The here DC voltage is intercepted
The half-bridge 9 of device 8 is used as the feed circuit of the charging circuit 30, and its mode is that the input terminal 36b of the charging circuit 30 connects
One be connected between the changer inductance coil 10 of the booster converter 14 in the DC voltage capture device 8 and the diode 11
On individual node 38.So the changer inductance coil 10 can just also act as the conversion of the buck converter of the charging circuit 30
Device inductance coil 31.Feed node 37b of the charging circuit 30 is coupled with the negative electrode accumulation point of the half-bridge circuit 9, and is passed through
The diode 9a of the half-bridge circuit 9 is connected with one of the aggregation terminal 8a, 8b, 8c respectively.The DC voltage capture device 8
Assemble terminal 8a, 8b, 8c so as to be used as current feed terminal 8a, 8b, 8c of the charging circuit 30.Second feed of the charging circuit 30
Node 37a is coupled with reference to potential bus-bar 4 with the energy storage device 1, so that charging current ILThis can be flow through
Second feed node 37a, the reference potential bus-bar 4, the energy-storage module 3 of energy supply branch road Z, the half-bridge circuit 9, this
One feed node 37b, the changer inductance coil 31 and the node 38 and again return in the charging circuit 30.By this partly
The diode 9a of bridge circuit 9, it is ensured that electric energy actually can be also stored in the energy-storage module 3, because if the semiconductor switch
33 closures, then the fly-wheel diode 32 provides for an optional current reflux path.
Between intercepting terminal 8e, 8f of the DC voltage capture device 8 or a reverse polarity protection two can be coupled
Pole pipe 39b, reverse polarity protection's diode can protect the intermediate loop electric capacity 13 to prevent due to possible cut-off current and
Caused reverse charge, the wherein cut-off current are likely to occur in effective operation of the charging circuit 30.
It is same or can also a reverse polarity protection diode 39a be coupling in the charging circuit 30 input terminal it
Between, if wherein the charging circuit 30 cuts out, and the DC voltage capture device 8 is activated, then two pole of reverse polarity protection
The intermediate loop electric capacity 35 of the protection of pipe charging circuit 30 is preventing reverse charge.
If the governor switch element 12 is muchly turned in the charge operation of the charging circuit 30, then the afterflow
Diode 32 is additionally operable to the governor switch element 12 for protecting the DC voltage capture device 8 in addition to prevent anti-current collection
Pole-emitter voltage.If the governor switch element 12 of the DC voltage capture device 8 does not have determining and enough anti-
To blocking capability, then this is especially necessary.If the contrary governor switch element 12 has determining and enough anti-
To blocking capability, then can just abandon the fly-wheel diode 32, and the fly-wheel diode 32 could alternatively be one it is conductive
Connection.
The output current potential of lead-out terminal 1a, 1b, 1c of the energy storage device 1 in a charge operation pattern, namely swash
A consistent, especially negative value can be adjusted to during it serves somebody right charging circuit.If the value is less than charging DC voltage UL's
Value, then charging current ILJust rise, if the value is more than charging DC voltage ULValue, then charging current ILJust
Decline.Such charging current ILCan just be conditioned.In order to ensure charging current ILIt is uniformly distributed to the energy storage device
On 1 several energy supply branch road Z, an actuator can be just given between the output current potential of energy supply branch road Z
Deviation.Commutating inductance coil 9b for this half-bridge circuit 9 is used as symmetrical inductance coil.Commutator inductance coil 9b
Can also such as be arranged such on one, two or three magnetic core so that between the charging current for flowing through single branch road
Deviation can generate magnetic field, but charging current I of entiretyLMagnetic field is not generated then.
In fig .9, shown in the figure 7 charging circuit 40 with the diagram it is shown, with an energy storage device 1 and
The system 200 of one DC voltage capture device 8 is combined as a system 500.The half-bridge of the here DC voltage capture device 8
Circuit 9 is used as the feed circuit of the charging circuit, and its mode is, the anode of the half bridge rectifier circuit 44 of the charging circuit 40
Accumulation point is connected to the changer inductance coil 10 of the booster converter 14 in the DC voltage capture device 8 and two pole of output
On node 48 between pipe 11.So the changer inductance coil 10 can just also act as the changer electricity of the buck converter
Sense coil 41.Feed node 47b of the charging circuit 40 is coupled with the negative electrode accumulation point of the half-bridge circuit 9, and by being somebody's turn to do half
The diode 9a of bridge circuit 9 is connected with one of the aggregation terminal 8a, 8b, 8c respectively.The aggregation of the DC voltage capture device 8
Terminal 8a, 8b, 8c are so as to being used as current feed terminal 8a, 8b, 8c of the charging circuit 40.Second feed node of the charging circuit 40
47a is coupled with reference to potential bus-bar 4 with the energy storage device 1, so that charging current ILCan by this second
Feed node 47a, the reference potential bus-bar 4, the energy-storage module 3 of energy supply branch road Z, the half-bridge circuit 9, first feedback
Electrical nodes 47b, the changer inductance coil 41 and the node 48 and again return in the charging circuit 40.By the half-bridge electricity
The diode 9a on road 9, it is ensured that electric energy actually can be also stored in the energy-storage module 3, because if the semiconductor switch 33 is closed
Close, then the fly-wheel diode 32 provides for an optional current reflux path.
In addition to the Pulse Width Control semiconductor switch 33 is to carry out blood pressure lowering to the charging DC voltage, the semiconductor switch
33 muchly can also close, because can also be by pulse charging DC voltage UNCurrency be adjusted to value 0 and
It is adjusted to freewheeling state.This such as can be carried out by correspondingly giving a time interval, wherein in the time interval
Charging alternating voltage UchThere is on the armature winding of the transformator 45 value 0.By so caused to the charging unidirectional current
Pressure UNPulse duty factor change, its DC component can be changed.One reverse polarity protection's diode can be set again
39b, reverse polarity protection's diode can protect the intermediate loop electric capacity 13 to prevent from causing due to possible cut-off current
Reverse charge, the wherein cut-off current is likely to occur in effective operation of the charging circuit 40.
Figure 10 shows the schematic diagram of a system 600, charging circuit 30 and system 300 phase of the system by Fig. 6
Combine.The system 600 is essentially consisted in 400 difference of system, and the charging circuit 30 is connected to the direct current with reverse polarity
On voltage capture device 8, and the energy supply branch road is adjusted to one unanimously in the charge operation of the energy storage device 1
, especially positive output current potential.Equally it should be clear that can also be by the charging circuit 40 Fig. 7 and 300 phase group of system
Close to implement with reversed polarity system.
All switch elements of the circuit configuration can include power semiconductor switch, such as normal cut-off or normal
The n or p-channel switch mosfet of conducting or corresponding IGBT switches.Using with determine and enough reverse blocking capabilities
Power semiconductor switch when, the corresponding series circuit with diode can be abandoned.
Figure 11 shows a kind of schematic diagram of method 20, and the method is for filling to a kind of energy storage device, especially energy storage device 1
Electricity, with reference to as described in Fig. 1 to 10.The method 20 such as can be used for the power drive system 400,500 using Fig. 8,9 or 10
Or 600 charge come the energy storage device 1 to electric automobile.
In optional step S1, the detection of the running status of the energy storage device 1 can be carried out first.If such as should
The running status of energy storage device 1 is the state that the energy storage device 1 provides an alternating voltage on the lead-out terminal 1a, 1b, 1c,
The traveling for being such as used for the motor 2 of electric automobile drives, then just can be the quasiconductor of the buck converter of the charging circuit
Switch 33 muchly disconnects, so that the charging circuit is closed.This closing especially can be with the DC voltage of Fig. 8 to 10
The operation of capture device 8 is unrelated carrying out so that the energy storage device 1 in traveling driving period it can in addition contain for automobile
On car, electrical network provides a DC potential.If the running status of the energy storage device 1 is the energy storage device 1 in the lead-out terminal
The state of alternating voltage is not provided on 1a, 1b, 1c, such as in the resting state of electric automobile, then just can be with the charging electricity
The buck converter function on road relatively closes the semiconductor switch 33 of the buck converter of the charging circuit off and on, so makes
Obtain the charging circuit to be active, and the energy storage device 1 can be electrically charged.It is straight this can muchly to be closed especially for this
The regulation switch element 12 of stream voltage capture device 8, so that ensureing the buck converter by the fly-wheel diode 32
Free wheeling path.Or if the semiconductor switch 33 is muchly closed, then the blood pressure lowering just can be abandoned in charge mode
Inverter functionality.The regulation switch element 12 of the DC voltage capture device 8 or can also be cut off in this case, because
It is not used by the free wheeling path of the fly-wheel diode 32 for the buck converter.
In step S2 of the method, at least sporadically depending on a charging DC voltage UNTo generate a unidirectional current
Stream IL, in step S4, the DC current can be imported in the energy-storage module 3 by a half-bridge circuit 9, its
In the half-bridge circuit there are multiple current feed terminal 8a, 8b, 8c, current feed terminal lead-out terminal 1a respectively with the energy storage device 1,
1b, 1c are coupled.In step S5, DC current ILThe reference potential bus-bar 4 of the energy storage device 1 can be passed through again
It is secondary to return in the charging circuit.Because the energy storage device 1 is driven in a bipolar voltage range of accommodation, by being somebody's turn to do
Half-bridge circuit 9 ensure that the energy-storage module 3 of the energy storage device 1 at least flows through a charging current once in a while.
Continue as described above, in optional step S3, such as can according to the charged state of the energy-storage module 3 or
The charging DC voltage U provided according to grid side by personNSize charging DC voltage U is carried out using the buck converterN
Blood pressure lowering, wherein the buck converter have 31 or 41, fly-wheel diode 32 and one and half of a changer inductance coil
Conductor switch 33.Can be controlled in an interval or pulse switch operation for this semiconductor switch 33, the phase to adjust
The charging voltage of prestige.Here is it is particularly advantageous that the buck converter shares the changer electricity with the DC voltage capture device 8
Sense coil 31 or 41 and the half-bridge circuit 9.The element demand of the power drive system is thus reduced, without by others
Circuit is affecting the function of the DC voltage capture device 8 or charging circuit 30 or 40.
Charging current ILHere can be by changing charging DC voltage UN, branch road by changing the energy storage device 1
The output voltage of Z and or it is affected and thereby is adjusted by changing the pulse duty factor of the interval semiconductor switch 33
Section.
Claims (14)
1. a kind of charging circuit for energy storage device, the energy storage device have multiple energy supply branch roads, energy supply
Road has multiple energy-storage modules, to generate alternating voltage on multiple lead-out terminals of the energy storage device, the charging circuit respectively
Have：
Half-bridge circuit, which has multiple current feed terminals, the current feed terminal respectively with one of the lead-out terminal of energy storage device phase coupling
Close；
First feed node, which is coupled with the half-bridge circuit；
Second feed node, which is coupled with reference to potential bus-bar with the energy storage device；
Buck converter, which is coupling between first feed node and second feed node, and which is designed to for this
There is provided DC current to charge to the energy-storage module；And
Feed circuit, which is coupled with the input terminal of the buck converter, and which is designed to for this at least once in a while to this
Buck converter provides charging DC voltage.
2. charging circuit according to claim 1, the wherein half-bridge circuit have multiple diodes, and the diode distinguishes coupling
Close between one of first feed node and multiple current feed terminals.
3. charging circuit according to claim 2, the wherein half-bridge circuit have multiple commutating inductance coils, commutation electricity
Sense coil is respectively coupled between multiple diodes and first feed node.
4. the charging circuit according to one of claims 1 to 3, the wherein buck converter have changer inductance coil,
Fly-wheel diode and semiconductor switch.
5. charging circuit according to claim 4, the wherein feed circuit have feed electric capacity, and the feed Capacitance Coupled exists
Between the input terminal of the charging circuit, and which is designed to by the buck converter provide charging DC voltage for this
Charge to the energy-storage module.
6. charging circuit according to claim 4, the wherein feed circuit have transformator and full-bridge rectifier, wherein should
The armature winding of transformator is coupling between the input terminal of the charging circuit, and the full-bridge rectifier is coupling in the secondary of the transformator
Level winding on, and the full-bridge rectifier for this be designed to by the buck converter pulse charging DC voltage is provided with
Charge to the energy-storage module.
7. a kind of power drive system, which has：
Energy storage device, which has multiple energy supply branch roads, and the energy supply branch road has multiple energy-storage modules respectively, with this
Alternating voltage is generated on multiple lead-out terminals of energy storage device；
Charging circuit according to one of claim 4 to 6, its current feed terminal respectively with the lead-out terminal of the energy storage device it
One is coupled, and its second feed node is coupled with reference to potential bus-bar with the energy storage device；And
DC voltage capture device, which has：
With reference to terminal, which is coupled with the second feed node of the charging circuit；And
Booster converter, which is coupling between the first feed node of the charging circuit and the reference terminal, and which is this quilt
It is designed to according to the current potential between the half-bridge circuit and the reference terminal on the intercepting terminal of the DC voltage capture device
DC voltage is provided,
The changer inductance coil of the wherein buck converter of the charging circuit is the boosting inverter of the DC voltage capture device
The changer inductance coil of device.
8. power drive system according to claim 7, which also has in addition：
N phase motors, which has n phase terminal, and the phase terminal is coupled with the lead-out terminal of the energy storage device, wherein n >=1.
9. the power drive system according to one of claim 7 and 8, which also has in addition：
First reverse polarity protection's diode, which is coupling between the intercepting terminal of the DC voltage capture device.
10. the power drive system according to one of claim 7 and 8, which also has in addition：
Second reverse polarity protection's diode, which is coupling between the input terminal of the charging circuit.
A kind of 11. methods charged to energy storage device, the wherein energy storage device have multiple energy supply branch roads, and the energy is supplied
Branch road has multiple energy-storage modules respectively, so that alternating voltage, the method tool are generated on multiple lead-out terminals of the energy storage device
There is below step：
DC current is at least generated once in a while according to charging DC voltage；
DC current is input in the energy-storage module in the lead-out terminal of the energy storage device by half-bridge circuit, wherein should be partly
Bridge circuit has multiple current feed terminals, and the current feed terminal is coupled with one of the lead-out terminal of the energy storage device respectively；And
By the energy storage device with reference to potential bus-bar come the DC current that flows back.
12. methods according to claim 11, which also has below step in addition：
The charging DC voltage is reduced using buck converter, the buck converter has changer inductance coil, afterflow two
Pole pipe and semiconductor switch.
13. methods according to claim 12, which also has below step in addition：
Detect the running status of the energy storage device, and according to the running status for being detected optionally disconnecting the buck converter
Semiconductor switch.
14. methods according to one of claim 11 to 13, wherein the method are using according to one of claim 7 to 10 institute
A kind of power drive system stated to charge to the energy storage device of electric automobile.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012202856.0 | 2012-02-24 | ||
| DE201210202856 DE102012202856A1 (en) | 2012-02-24 | 2012-02-24 | Circuit for charging lithium ion battery of electrical propulsion system of e.g. electric car, has supply circuit coupled with input terminals of buck converter, and temporarily providing charging direct voltage for buck converter |
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| Publication Number | Publication Date |
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| CN103296714A CN103296714A (en) | 2013-09-11 |
| CN103296714B true CN103296714B (en) | 2017-04-12 |
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| CN201310056787.9A Active CN103296714B (en) | 2012-02-24 | 2013-02-22 | Charging circuits for energy storage apparatus and method for charging for energy storage apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN103296714B (en) |
| DE (1) | DE102012202856A1 (en) |
| FR (1) | FR2987512B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102013221830A1 (en) * | 2013-10-28 | 2015-04-30 | Robert Bosch Gmbh | Charging circuit for an energy storage device and method for charging an energy storage device |
| DE102013224511A1 (en) * | 2013-11-29 | 2015-06-03 | Robert Bosch Gmbh | An electric drive system with a charging circuit for an energy storage device and method for operating an energy storage device |
| WO2016150467A1 (en) * | 2015-03-20 | 2016-09-29 | Siemens Aktiengesellschaft | Energy storage arrangement |
| CN105501379A (en) * | 2015-05-04 | 2016-04-20 | 辽宁科技学院 | Detachable complementary-charging super capacitance mobility scooter electric control device |
| DE102018106162B4 (en) * | 2018-03-16 | 2020-06-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Double protection of the module memory connection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5642275A (en) | 1995-09-14 | 1997-06-24 | Lockheed Martin Energy System, Inc. | Multilevel cascade voltage source inverter with seperate DC sources |
| JP3741171B2 (en) * | 1996-06-17 | 2006-02-01 | 株式会社安川電機 | Multiple pulse width modulation power converter |
| SE521243C2 (en) * | 2001-02-07 | 2003-10-14 | Abb Ab | Converter device and method for controlling such |
| JP4401418B2 (en) * | 2008-04-18 | 2010-01-20 | シャープ株式会社 | Bi-directional DC / DC converter and power conditioner |
| CN201207620Y (en) * | 2008-05-16 | 2009-03-11 | 北京工业大学 | Power converter of integrated starting/power generating system for automobile |
| DE102010027857A1 (en) | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Coupling unit and battery module with integrated pulse inverter and increased reliability |
| 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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| DE102012202856A1 (en) | 2013-08-29 |
| FR2987512B1 (en) | 2019-07-05 |
| CN103296714A (en) | 2013-09-11 |
| FR2987512A1 (en) | 2013-08-30 |
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