CN103770656B - A kind of integrated driving/charging device - Google Patents
A kind of integrated driving/charging device Download PDFInfo
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- CN103770656B CN103770656B CN201210410336.6A CN201210410336A CN103770656B CN 103770656 B CN103770656 B CN 103770656B CN 201210410336 A CN201210410336 A CN 201210410336A CN 103770656 B CN103770656 B CN 103770656B
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- switch
- level converter
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- charging device
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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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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of integrated driving/charging device, including：Battery, is suitable to be electrically charged under charge mode, powers in the operational mode；Three-level converter, its DC side is connected to the both positive and negative polarity of the battery, and its AC has three ports, and the three-level converter is adapted to provide for the mutual conversion of DC-AC；Three phase electric machine, with three windings；Switch, with least three terminals, be suitable to closure when so that between at least three terminals electrically connect, and open when cause at least three terminals between it is electrically isolated from one；One end of wherein described three windings is connected respectively to three terminals at least three terminals of the switch, the end that two of which winding is connected to the switch is also respectively adapted to be connected to the live wire and zero line of external power source, and the other end of three windings is connected respectively to three ports of the AC of the three-level converter.
Description
Technical field
It is used for EV (Electric Vehicle, electric automobile) and PHEV (Pl ug-in Hybrid the present invention relates to one kind
Electric Vehicle, rechargeable hybrid-electric car) vehicle-mounted type charging device, more particularly to one kind can integrated driving and
Integrated driving/the charging device of charge function.
Background technology
EV (Electric Vehicle, electric automobile) and PHEV (Plug-in Hybrid Electric Vehicle,
Rechargeable hybrid-electric car) development increasingly paid close attention to by people, be compared to for traditional automobile, EV and PHEV
Using electric energy as the source for driving, fossil energy is no longer dependent on, while zero-emission (low emission) can be realized, is conducive to ring
Border, is following developing direction.In EV and PHEV, battery is a very important part, and the performance of battery and life-span
The raw material that battery is used are depended not only on, the mode of charging is also depended on.Mainly there are two kinds of electronic vapour of form at present
Car charger, one kind is on-board (vehicle-mounted) type, and usual power is smaller, without isolation, meets normal charge (6 to 8 hours)
Demand；And another kind is then off-board (off-board) type, power is larger, typically there is isolation, and (10 arrive to meet quick charge
15 minutes) demand.
The structure of typical EV is relatively easy, and its structure is as shown in figure 1, only a set of battery/electric system, battery is used as vapour
The power source of car, by converter come motor.The core control portions of EV have 2 control units, battery control units
And convertor controls unit.
Typical PHEV has 2 sets of power set, its structure as shown in Fig. 2 a set of is traditional internal-combustion engine system, another
It is battery/electric system to cover, with common HEV (Hybrid Electric Vehicle, hybrid-electric car) unlike,
The battery of PHEV can be charged by external power source.Except motor and the control system of internal combustion engine, also one system controller,
Completion includes the task of charging and energy management.
In EV and PHEV, there is this part of the driver of motor ensuring the chemical energy of battery and be converted into the machine of motor
Tool energy, drives running car.It is such as preceding and due to the presence of battery, being typically necessary charger carries out the supplement of energy to battery
Described, On-board type of charge device power is small, typically carries in the car at any time, therefore it is required that its small volume, low cost, use
It is simple and convenient.In order to reach this target, many scholars discuss the possibility for integrating the driver of charger and motor
Property, so that using a set of hardware platform, the dual-use function for driving and charging is met in different periods.
Wally E.Rippel et al. are in Publication No. US4920475A, entitled " Integrated Traction
Disclose a kind of using in motor driver in the United States Patent (USP) of Inverter and Battery Charger Apparatus "
The levels full-bridge converter of 3 phase 2 and external inductance and rectifier bridge constitute the concept of Boost chargers, what is charged to battery
Input side High Power Factor is kept simultaneously.Alan G.Cocconi et al. are in Publication No. US5341075A, entitled " Combined
The winding conduct of motor is further used in the United States Patent (USP) of Motor Drive and Battery Recharge System "
Inductance, then with the levels full-bridge converter device of 3 phase 2 formed Boost circuit, by using 2 switch come cut off/connect converter and
The winding of motor, so as to switch between the function of driving and charge.
Wally E.Rippel et al. are in Publication No. US5099186A, entitled " Integrated Motor Drive
Proposed in the United States Patent (USP) of and Recharge System. " using 2 sets of converters and 2 motors (or 2 sets of motor around
Group) it is integrated between driver and charger to realize.Its thought is the three-phase windings inductance of conduct input simultaneously of motor, so
Can ensure that the sense of current in three-phase windings is consistent, prevent undesirable torque, this thought can be used for 2 wheel drives
EV or PHEV in.
S.J.Lee et al. is in " the Wheel Drive Electric of An Integral Battery Charger for 4
Vehicle. " propose to use 4 sets in (IEEE Trans.Ind.Electron., Vol.57, No.2,641-648,2010.6.)
Driver/charger integrated system that converter and 4 motors are constituted, can complete to drive and fill by a switching switch
Conversion between Electricity Functional, it is adaptable in the EV and PHEV of 4 wheel drives.
In addition, also there are some schemes to employ special electric machine structure come further effectively using the inductance of machine winding,
Integrated with driver so as to realize single-phase or 3 phases chargers, using the system of split winding electric machines, its thought is to make
With the centre cap of stator winding as input, 3 phase stator winding are changed into 6 inductance, thus constitute 23 phase chargers (or
It is 1 single-phase charger)；A transformation for isolation is constituted using the stator and rotor windings of wound rotor asynchronous machine
Device, it is achieved thereby that isolated charger system.
The content of the invention
Therefore, it is an object of the invention to provide a kind of integrated driving/charging device based on three-level converter, will fill
Electrical equipment is integrated with the driver of motor, can meet driving and the dual-use function for charging in different periods, and can improve system
System efficiency, reduces common-mode voltage.
The present invention provides a kind of integrated driving/charging device, including：
Battery, is suitable to be electrically charged under charge mode, powers in the operational mode；
Three-level converter, its DC side is connected to the both positive and negative polarity of the battery, and its AC has three ports, described
Three-level converter is adapted to provide for the mutual conversion of DC-AC；
Three phase electric machine, with three windings；
Switch, with least three terminals, be suitable to closure when so that between at least three terminals electrically connect,
And open when cause at least three terminals between it is electrically isolated from one；
One end of wherein described three windings is connected respectively to three wiring at least three terminals of the switch
End, the end that two of which winding is connected to the switch is also respectively adapted to be connected to the live wire and zero line of external power source, described
The other end of three windings is connected respectively to three ports of the AC of the three-level converter.
According to the device that the present invention is provided, also including the electromagnetic filter between power supply and switch.
According to the device that the present invention is provided, wherein when the switch is closed, controlling electromagnetic filter, make electromagnetic filter by electricity
Source with switch off, when the switch is opened, control electromagnetic filter, make electromagnetic filter by power supply with switch be connected.
According to the device that the present invention is provided, wherein the switch is single-phase contactor.
According to the device that the present invention is provided, wherein during the switch closure, the integrated driving/charging device is in work
Pattern.
According to the device that the present invention is provided, wherein when the switch is opened, the integrated driving/charging device is in and charges
Pattern.
The present invention also provides a kind of electric control system, including：
1) system controller；
2) above-mentioned integrated driving/charging device；
3) three-level converter controller；
Wherein system controller sends the order of battery charging and discharging, three level translations to three-level converter controller
Three-level converter and single-phase of the device controller in the order control integrated driving/charging device of the system controller for receiving
Contactor, realizes switching of the battery between work/charge mode.
According to offer system of the present invention, wherein having speed/positional sensor, the speed/position on the three phase electric machine
Speed from three phase electric machine to three-level converter controller and positional information that sensor sends are put, wherein when speed/positional sensing
The presentation of information motor that device sends is when being kept in motion middle, then three-level converter controller is not performed from mode of operation to filling
The conversion of power mode.
The present invention also provides a kind of electric automobile, with above-mentioned integrated driving/charging device.
The present invention also provides a kind of rechargeable hybrid-electric car, with above-mentioned integrated driving/charging device.
Integrated driving/the charging device based on three-level converter that the present invention is provided, can be by charger and motor
Driver is integrated, and rotating excitation field will not be formed during charging and causes undesirable torque, it is easy to realize unit power because
Number operation, while also have energy can with two-way flow the characteristics of, except by power network to battery charge in addition to, electricity can also be realized
The function of pond energy-feedback power grid, i.e. V2G (Vehicle to Grid).
Brief description of the drawings
Embodiments of the present invention is further illustrated referring to the drawings, wherein：
Fig. 1 is the structural representation of EV；
Fig. 2 is the structural representation of PHEV；
Fig. 3 is the circuit diagram according to device of the invention；
Fig. 4 is the circuit diagram of the single-phase contactor in embodiment 1；
Fig. 5 is the circuit diagram of the apparatus according to the invention under charge mode；
Fig. 6 is the structural representation of the electric control system according to the embodiment of the present invention 2.
Specific embodiment
The present invention a kind of integrated driving/charging device, its circuit diagram are provided as shown in figure 3, including：
Battery, is suitable to be electrically charged under charge mode, motor in the operational mode；
Three-level converter 1, is adapted to provide for the mutual conversion of DC-AC, and its DC side is connected to the both positive and negative polarity of battery,
The positive pole of wherein three-level converter is connected to the positive pole of battery, and the negative pole of three-level converter is connected to the negative pole of battery, three
The AC of level converter 1 has three ports；
Three phase electric machine 2, with three-phase windings L1, L2 and L3；
Switch S；
Electromagnetic filter (EMI filter), between power supply and switch S；
One end of wherein three-phase windings L1, L2 and L3 is connected respectively to switch S, switchs particular circuit configurations such as Fig. 3 institutes of S
Show, three-phase windings L1, L2 and L3 are connected to this one end of switch S for neutral point, this one end of the neutral point of winding L1, L3 is also in addition
Live wire, the zero line of external power source 3 are connected to by electromagnetic filter respectively.Here selection L1, L3 is connected to external power source 3 is only
For convenience of explanation, it can be any two winding in three-phase windings to be connected to the winding of the both positive and negative polarity of external power source 3.Three-phase
The other end opposite with neutral point one end of winding L1, L2 and L3 is connected respectively to three ends of the AC of three-level converter
Mouthful, its breaker in middle S is single-phase contactor as shown in Figure 4, and when switch S closures, (i.e. single-phase contactor adhesive, T1 is electrically connected with T2
Connect, T3 is electrically connected with T4) when, three-phase windings L2 and three-phase windings L1, L3 are shorted together composition neutral point, while controlling electromagnetism
Wave filter, makes electromagnetic filter disconnect neutral point one end of three-phase windings L1, L3 and external power source, and now battery is by three electricity
Flat converter motor.And when switch S opens (i.e. single-phase contactor disconnects, and T1 and T2 disconnects, and T3 and T4 disconnects), three-phase
Winding L1, L2 and L3 are each each turned off each other, while control electromagnetic filter makes the neutral point one of three-phase windings L1, L3
End is connected with external power source 3, so that the access circuit of external power source 3.Now, the A of winding L1, L3 and three-level converter
Phase, C phases bridge arm constitute single-phase three level rectifyings circuit, its equivalent circuit diagram as shown in figure 5, being in charge mode, and power supply leads to
The single-phase three level rectifyings circuit is crossed to charge battery.During charging, the size of current in the winding of L1 and L3 is equal, direction
Conversely, will not form rotating excitation field causes undesirable torque, therefore also without the extra rotor locking device of increase.Separately
Outward, 3 level rectifying circuits in Fig. 5 are easily achieved unity power factor operation, while can also be with two-way flow with energy
The characteristics of, in addition to being charged to battery by power network, energy content of battery feedback grid, i.e. V2G (Vehicle to can also be realized
Grid function).
To sum up, the invention provides the device that a kind of driving by EV and PHEV and charge function are integrated, its
In 3 level converters in itself have high efficiency, the low feature of device voltage stress, when 3 level converters are used as EV's and PHEV
During drive part, the less electric current of harmonic content to motor can be provided, reduce torque ripple, the motor feels hot and noise for reduction,
Common-mode voltage can effectively be reduced by appropriate PWM method, reduce the shaft current of motor, extend electrical machinery life；And when 3 electricity
Flat converter as EV and PHEV live part when, it is possible to achieve two-way flow of the energy between vehicle and power network, effectively drop
The harmonic wave of low current on line side, realizes that High Power Factor runs.
In above-described embodiment, electromagnetic filter also acts cut-out/access outside in addition to playing a part of electromagnetic shielding
The effect of power supply, so as to external power source is short-circuited when preventing switch S from closing, in other embodiments in accordance with the invention,
The switching device that can be cut off/access external power source with others replaces electromagnetic filter.Electromagnetic filter can also be omitted,
In this case it is necessary to ensure to be closed again switch S to prevent external power source short circuit after first disconnecting external power source.
According to other embodiments of the invention, the one kind in three-level converter is exemplarily only shown wherein in Fig. 3, this
Invention can also use other kinds of three-level converter.
According to other embodiments of the invention, wherein the three phase electric machine can be asynchronous machine, permagnetic synchronous motor, or
Other kinds of three phase electric machine etc..
According to other embodiments of the invention, its breaker in middle S can also be other kinds of switch, it is not limited to single-phase
Contactor, as long as winding L2 can be made to switch in short circuit and between being located away from winding L1, L3 both states.
The present invention a kind of electric control system for EV or PHEV, its structure are also provided as shown in fig. 6, including：
1) system controller；
2) foregoing integrated driving/charging device, including battery, three-level converter, motor, electromagnetic filter and single-phase
There is speed/positional sensor on contactor, wherein motor；
3) three-level converter controller；
Wherein system controller is responsible for the logic control of system level, interaction for man-machine interface and determine internal combustion engine and
The action situation of motor, while sending the order of battery charging and discharging to three-level converter controller.Speed/positional is passed
Sensor sends the speed and positional information of motor to three-level converter controller.Three-level converter controller is according to receiving
The order of system controller and the speed of motor and positional information, selection perform charging algorithm or drive algorithm, with domination set
Into the three-level converter in driving/charging device and single-phase contactor, by closure/single-phase contactor of disconnection, battery is realized
Switching between driving/charge mode.Wherein when the presentation of information motor that speed/positional sensor sends is kept in motion
When middle, then three-level converter controller does not perform the conversion from mode of operation to charge mode.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention has been described in detail according to embodiment, it will be understood by those within the art that, to technical side of the invention
Case is modified or equivalent, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right in the middle of.
Claims (10)
1. a kind of integrated driving/charging device, including：
Battery, is suitable to be electrically charged under charge mode, powers in the operational mode；
Three-level converter, its DC side is connected to the both positive and negative polarity of the battery, and its AC has three ports, three electricity
Flat converter is adapted to provide for the mutual conversion of DC-AC；
Three phase electric machine, with three windings；
Switch, with least three terminals, be suitable to closure when so that between at least three terminals electrically connect, and
Caused during opening electrically isolated from one between at least three terminals；
One end of wherein described three windings is connected respectively to three terminals at least three terminals of the switch, its
In two windings end for being connected to the switch be also respectively adapted to be connected to the live wire and zero line of external power source, described three around
The other end of group is connected respectively to three ports of the AC of the three-level converter.
2. device according to claim 1, also including the electromagnetic filter between externally-located power supply and switch.
3. device according to claim 1, wherein when the switch is closed, controlling electromagnetic filter, incites somebody to action electromagnetic filter
External power source with switch off, when the switch is opened, control electromagnetic filter, make electromagnetic filter by external power source with switch connect
Connect.
4. device according to claim 1, wherein the switch is single-phase contactor.
5. device according to claim 1, wherein during the switch closure, the integrated driving/charging device is in work
Operation mode.
6. device according to claim 1, wherein when the switch is opened, the integrated driving/charging device is in and fills
Power mode.
7. a kind of electric control system, including：
1) system controller；
2) integrated driving/charging device according to claim 1；
3) three-level converter controller；
Wherein system controller sends the order of battery charging and discharging, three-level converter control to three-level converter controller
Three-level converter and single-phase contact of the device processed in the order control integrated driving/charging device of the system controller for receiving
Device, realizes switching of the battery between work/charge mode.
8. system according to claim 7, wherein there is speed/positional sensor on the three phase electric machine, the speed/
Position sensor sends the speed and positional information of three phase electric machine to three-level converter controller, wherein when speed/positional is passed
The presentation of information motor that sensor sends is when being kept in motion middle, then three-level converter controller do not perform from mode of operation to
The conversion of charge mode.
9. a kind of electric automobile, with integrated driving/charging device as claimed in claim 1.
10. a kind of rechargeable hybrid-electric car, with integrated driving/charging device as claimed in claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210410336.6A CN103770656B (en) | 2012-10-24 | 2012-10-24 | A kind of integrated driving/charging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410336.6A CN103770656B (en) | 2012-10-24 | 2012-10-24 | A kind of integrated driving/charging device |
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| CN103770656A CN103770656A (en) | 2014-05-07 |
| CN103770656B true CN103770656B (en) | 2017-07-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092273B (en) * | 2014-07-25 | 2017-01-18 | 中山大洋电机股份有限公司 | Electric vehicle driving and charging integrated control method and electric vehicle operated with same |
| CN105262406B (en) * | 2015-11-26 | 2018-01-09 | 合肥工业大学 | Switched reluctance machines driving structure and control method based on three-level inverter |
| CN106992558A (en) | 2016-01-21 | 2017-07-28 | 华为技术有限公司 | A kind of charge-discharge controller |
| CN105914767B (en) * | 2016-06-20 | 2018-06-29 | 杭州杰能动力有限公司沈阳分公司 | A kind of electric automobile driving apparatus and transformation of electrical energy control method |
| DE102016218304B3 (en) | 2016-09-23 | 2018-02-01 | Volkswagen Aktiengesellschaft | Device for voltage conversion, traction network and method for charging a battery |
| CN106740152A (en) * | 2016-11-06 | 2017-05-31 | 华北电力大学 | A kind of electric automobile uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap |
| CN106786691A (en) * | 2016-12-16 | 2017-05-31 | 国电南瑞科技股份有限公司 | A kind of three level intelligent chargers with reactive-load compensation and reactive power detection compensation method |
| CA3066258A1 (en) * | 2017-06-02 | 2018-12-06 | Magna International Inc. | System and method for integrated battery charging and propulsion in plug-in electric vehicles |
| CN109455095A (en) * | 2018-10-30 | 2019-03-12 | 广东工业大学 | A kind of drive system of electric automobile and correlation technique and device |
| CN110171323A (en) * | 2019-06-04 | 2019-08-27 | 上海电气集团股份有限公司 | A kind of electric car charge-discharge control system and application method based on V2G |
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| US4920475A (en) * | 1988-03-07 | 1990-04-24 | California Institute Of Technology | Integrated traction inverter and battery charger apparatus |
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