CN108173430B - Vehicle-mounted AC/DC charging and driving circuit topology based on reluctance motor winding reconstruction - Google Patents
Vehicle-mounted AC/DC charging and driving circuit topology based on reluctance motor winding reconstruction Download PDFInfo
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- CN108173430B CN108173430B CN201810064994.1A CN201810064994A CN108173430B CN 108173430 B CN108173430 B CN 108173430B CN 201810064994 A CN201810064994 A CN 201810064994A CN 108173430 B CN108173430 B CN 108173430B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
- B60L53/24—Using the vehicle's propulsion converter for charging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a vehicle-mounted alternating current-direct current charging and driving integrated circuit topology based on reluctance motor winding reconstruction. The invention can make the circuit work in a charging mode or a charging mode by reconstructing the reluctance motor, effectively save the manufacturing cost and the internal space of the electric automobile, and improve the reliability of the circuit by reducing the number of the switching tubes. In the aspect of driving, the circuit topology can obtain high-speed smooth starting torque and a wider torque range, and feeds back electric energy when the automobile decelerates or goes down a slope, so that the battery endurance is prolonged. In the aspect of charging, the circuit topology can reduce the limitation on the types of external charging piles, reduces the voltage when the charging voltage is too high, ensures the charging safety, can adjust the power factor in an alternating current charging mode, and improves the charging efficiency.
Description
Technical Field
The invention relates to the technical field of power electronics, in particular to an electric automobile charging and driving integrated device which is wide in application, faster in speed increasing, longer in endurance and has a PFC (power factor correction) function.
Background
In order to reduce the emission of automobile exhaust and the pollution to the environment, the electric automobile has the advantages of high driving energy conversion efficiency, strong regenerative braking capability of a motor, low noise, small vibration and the like under the conditions of using clean energy and reducing cost. However, the driving circuit and the charging circuit of the conventional electric vehicle are separated, so that the effective volume of the electric vehicle is reduced and the manufacturing cost is increased. The motor drive power supply does not contain a front-end DC/DC converter, so that the voltage requirement of the motor on battery power supply is too severe, and smooth and wide torque promotion cannot be obtained. In the aspect of charging, an automobile is generally only suitable for a single fixed charging pile, and a lot of inconvenience is caused in daily life.
In order to solve the problems, the invention provides a DC/DC buck-boost module with a front end, which is suitable for a vehicle-mounted charging and driving integrated device with an input of an alternating-current and direct-current power supply, realizes integration of charging and discharging and motor driving, simplifies a topological structure of a circuit, saves space in a vehicle, and has an energy feedback function, so that the cruising ability of a battery is improved. Besides, the alternating current charging device also has PFC correction and voltage reduction functions, so that the charging efficiency and safety are improved.
Disclosure of Invention
The invention solves the technical problem of providing an integrated circuit topology suitable for vehicle-mounted charging and motor driving by AC/DC power supply input, which can effectively save the manufacturing cost and the internal space of an electric vehicle, can provide larger voltage/current for a motor in a driving state to realize quick and stable starting, can perform electric energy feedback in braking or downhill, and can perform charging protection and power regulation in a charging state.
The technical scheme includes that the vehicle-mounted charging and driving integrated circuit topology based on reluctance motor winding reconstruction and provided with the following structure comprises a power supply module, a DC/DC buck-boost module and a reluctance motor reconstruction module.
The integrated vehicle-mounted charging and driving circuit topology comprises a lithium battery (V)b) A first inductor (L)1) A first capacitor (C)1) First to ninth switching tubes (Q)1-Q9) First to eighth diodes (D)1-D8) Single-pole double-throw switch (S) and reluctance machine winding (L)2、L3、L4、L5)。
The lithium battery (V)b) A first switch tube (Q)1) And a first diode (D)1) Forming a power supply module.
The first inductor (L)1) A second switch tube (Q)2) And a third switching tube (Q)3) And a first capacitance (C)1) The booster circuit module is formed.
The first inductor (L)1) A second diode (D)2) A third diode (D)3) A fourth diode (D)4) And a reluctance motor winding (L)3) And a sixth switching tube (Q)6) And forming a voltage reduction circuit module.
The fourth switch tube (Q)4) And a fifth switching tube (Q)5) And a sixth switching tube (Q)6) And a seventh switching tube (Q)7) And an eighth switching tube (Q)8) And a ninth switching tube (Q)9) A third diode (D)3) A fourth diode (D)4) A fifth diode (D)5) Sixth, aDiode (D)6) A seventh diode (D)7) Single-pole double-throw switch (S) and reluctance machine winding (L)2、L3、L4、L5) And forming a reluctance motor reconstruction module.
Positive electrode (V) of lithium batteryb) And a first switch tube (Q)1) And the first diode (D)1) The first switching tube (Q)1) Collector electrode of (2), first diode (D)1) Cathode and first inductor (L)1) Is connected to said first inductor (L)1) And a second switching tube (Q)2) Collector electrode of, and second diode (D)2) Cathode of (D), fourth diode (D)4) Cathode of (D), fifth diode (D)5) Cathode of (2), sixth diode (D)6) A cathode, one end (B) of a single-pole double-throw switch (S), and a seventh diode (D)7) Cathode and third switching tube (Q)3) The collector of the third switching tube (Q)3) Emitter electrode, first capacitor (C)1) One terminal of (D), a third diode (D)3) Cathode and fourth switching tube (Q)4) Collector electrode of (1), sixth switching tube (Q)6) Collector electrode, reluctance machine winding (L)4) Is connected with one end (A) of a single-pole double-throw switch (S), and the fifth switch tube (Q)5) Collector and fourth diode (D)4) Anode and reluctance machine winding (L)2) Is connected to one end of the reluctance-motor winding (L)2) And a fourth switching tube (Q)4) Said seventh switching tube (Q)7) Collector and fifth diode (D)5) Anode and reluctance machine winding (L)3) Is connected to one end of the reluctance-motor winding (L)3) And a sixth switching tube (Q)6) Said eighth switching tube (Q)8) Collector and sixth diode (D)6) Anode and reluctance machine winding (L)4) Is connected to the ninth switching tube (Q)9) Collector and seventh diode (D)7) Anode and reluctance machine winding (L)5) Is connected to the winding (L) of the reluctance machine5) One end of the switch (S) is connected with a single-pole double-throw switch (S)To a ninth switching tube (Q)9) Emitter electrode of (1), eighth switching tube (Q)8) Emitter electrode of (1), and seventh switching tube (Q)7) Emitter electrode, fifth switching tube (Q)5) Emitter of (D), third diode (D)3) Anode of (2), first capacitor (C)1) One terminal of (D), a second diode (D)2) Anode of (2), second switching tube (Q)2) Emitter and lithium battery (V)b) Is connected to the negative electrode of (1).
After adopting the structure, compared with the prior art, the invention has the beneficial effects that:
(1) the manufacturing cost and the inner space of the electric automobile can be saved.
(2) A smooth starting torque at high speed and a wider torque range can be obtained in the driving state.
(3) The electric energy can be fed back when the automobile decelerates or goes down a slope, and the battery endurance is prolonged.
(4) The voltage can be reduced when the charging voltage is too high, and the charging safety is guaranteed.
(5) Can charge under DC power supply or single phase AC power supply, reduce the restriction of the outside electric pile kind of filling.
(6) The power factor can be adjusted in an alternating current charging mode, and the charging efficiency is improved.
In the vehicle-mounted alternating current-direct current charging circuit topology based on reluctance motor winding reconstruction, the first to the ninth switching tubes (Q)1-Q9) PWM control is used. Wherein, the first switch tube Q1The first switch tube Q is used for controlling the charging of the lithium battery when the charging is finished1And (5) disconnecting. Third switch tube Q3The power supply is always on in a driving state and is always off in a charging state. Fourth switch tube Q4The power supply is always on in a driving state and is always off in a charging state. Second switch tube Q2Sixth switching tube Q for controlling the boost regulation6For control of the regulation of the pressure drop. Fourth switch tube Q4And a sixth switching tube Q6The control for charging in the charging mode is always on in the driving mode. Fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9The pulse phase difference is 60 degrees in sequence, and the control duty ratio D is equal. Compared with the traditional electric automobile circuit topology, the invention adopts the front-end DC/DC buck-boost module to control the voltage, so that the speed regulation is more stable and rapid. And the integration of the drive and charging circuit topology is realized, and the cost and the volume of the electric automobile are reduced.
Drawings
Fig. 1 is a schematic block diagram of an on-vehicle ac/dc charging circuit.
Fig. 2 is a structural diagram of a vehicle-mounted ac/dc charging circuit topology.
Fig. 3 is a driving voltage boosting circuit diagram of the vehicle-mounted ac/dc charging circuit.
Fig. 4 is a charging step-down circuit diagram of the on-vehicle dc charging circuit.
FIG. 5 shows the fourth switch tube Q of the circuit of FIG. 2 in a driving state4And a sixth switching tube Q6Conducting, fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q7And a ninth switching tube Q9And the winding feeds back the energy working schematic diagram when the circuit is switched off.
FIG. 6 shows the circuit of FIG. 2 in a sixth switching transistor Q6Conducting, fourth switch tube Q4The fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9And the battery pack direct current charging working schematic diagram is shown when the battery pack is turned off.
Fig. 7 shows the circuit of fig. 2 with the ac voltage in the positive half cycle and the sixth switching transistor Q6And a ninth switching tube Q9Conducting, fourth switch tube Q4The fifth switch tube Q5Seventh switch tube Q7And an eighth switching tube Q8And the working schematic diagram of the single-phase alternating current charging of the battery pack when the battery pack is turned off.
Fig. 8 shows the circuit of fig. 2 when the ac voltage is in a negative half cycle and the fourth switching transistor Q is on4And a ninth switching tube Q9Conducting, fifth switch tube Q5And a sixth switching tube Q6Seventh switch tube Q7And an eighth switching tube Q8Battery pack at shutdownSingle-phase alternating current charging operation schematic diagram.
Detailed Description
The following describes the vehicle-mounted ac/dc charging circuit based on winding reconstruction of the reluctance motor in detail with reference to the accompanying drawings.
As shown in fig. 1, the vehicle-mounted ac/DC charging circuit based on reluctance machine winding reconstruction of the present invention includes a power module 1, a DC/DC buck-boost module 2 and a reluctance machine reconstruction module 3, which are connected to each other.
As shown in FIG. 2, the circuit topology includes a lithium battery (V)b) A first inductor (L)1) A first capacitor (C)1) First to ninth switching tubes (Q)1-Q9) First to eighth diodes (D)1-D8) Single-pole double-throw switch (S) and reluctance machine winding (L)2、L3、L4、L5) And are connected as shown. First to ninth switching tubes (Q)1-Q9) PWM control is used. Wherein, the first switch tube Q1The first switch tube Q is used for controlling the charging of the lithium battery when the charging is finished1And (5) disconnecting. Third switch tube Q3The power supply is always on in a driving state and is always off in a charging state. Fourth switch tube Q4The power supply is always on in a driving state and is always off in a charging state. Second switch tube Q2Sixth switching tube Q for controlling the boost regulation6For control of the regulation of the pressure drop. Fourth switch tube Q4And a sixth switching tube Q6The control for charging in the charging mode is always on in the driving mode. Fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9The pulse phase difference is 60 degrees in sequence, and the control duty ratio D is equal. The single-pole double-throw switch (S) is turned on to A in a driving or feedback state, is turned off in a direct-current charging state, and is turned on to B in a single-phase alternating-current charging state.
As shown in fig. 3, when the electric vehicle is in a driving state, if a torque needs to be quickly raised, the third switching tube Q may be used3Control, regulation ofThe duty ratio increases the power supply voltage, so that the reluctance motor can stably and quickly reach the expected rotating speed.
As shown in fig. 4, when the electric vehicle is in the dc charging state, if the charging voltage is too high, the sixth switching tube Q can be turned on6The control of (3) adjusts the duty ratio, reduces the charging voltage, and ensures that the lithium battery realizes safe charging. When the electric automobile is in a direct current charging state, the voltage can be adjusted by controlling the fourth switching tube and the sixth switching tube.
Fig. 5-8 are diagrams of the operation process of the vehicle-mounted alternating current and direct current charging circuit based on reluctance machine winding reconstruction in the driving and charging modes of the invention shown in fig. 2.
Wherein, fig. 5 shows the fourth switch tube Q in the case of decelerating or stopping the automobile4And a sixth switching tube Q6Conducting, fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9The winding feedback energy work schematic diagram when turning off, at the moment, the fourth diode D4A fifth diode D5A sixth diode D6The seventh diode D7And an eighth diode D8Conducting, S direction of single-pole double-throw switch is towards A, and L of reluctance motor winding2、L3、L4、L5The energy is released and the battery pack is in a charged state.
FIG. 6 shows that the sixth switch tube is turned on Q when the DC power supply is connected to the electric vehicle6Fourth switch tube Q4The fifth switch tube Q5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9And the battery pack direct current charging working schematic diagram is shown when the battery pack is turned off. At this time, the fourth diode D4And (4) conducting, and charging the battery pack by the direct current power supply.
FIG. 7 shows a sixth switch Q of an electric vehicle connected to a unidirectional AC power source and having a positive half cycle of the AC voltage6Is conducted with the ninth switching tube9Fourth switch tube Q4The fifth switch tube Q5Seventh switch tube Q7And an eighth switching tube Q8At the time of turn-offThe single-phase alternating current charging working diagram of the battery pack. At this time, the fourth diode D4And a fifth diode D5Conducting, S turning to B, charging the battery pack with AC power source, wherein the winding L of the reluctance motor5And the function of PFC correction is achieved.
Fig. 8 shows a fourth switching tube Q of the electric vehicle when the unidirectional ac power source is connected and the ac voltage is in a negative half cycle4And a ninth switching tube Q9Conducting, fifth switch tube Q5And a sixth switching tube Q6Seventh switch tube Q7And an eighth switching tube Q8And the working schematic diagram of the single-phase alternating current charging of the battery pack when the battery pack is turned off. At this time, the fourth diode D4And a sixth diode D6Conducting, S turning to B, charging the battery pack with AC power source, wherein the winding L of the reluctance motor5And the function of PFC correction is achieved.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, which is defined by the claims.
Claims (1)
1. A vehicle-mounted alternating current-direct current charging circuit topology based on reluctance motor winding reconstruction comprises a power module, a DC/DC buck-boost module and a reluctance motor reconstruction module which are connected with one another, wherein the power module comprises a lithium battery VbA first switch tube Q1And a first diode D1The DC/DC buck-boost module comprises a first inductor L1A second switch tube Q2A second diode D2A first capacitor C1And a third switching tube Q3The reluctance motor reconstruction module comprises a fourth switching tube Q4The fifth switch tube Q5And a sixth switching tube Q6Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9A third diode D3A fourth diode D4A fifth diode D5The sixth diodePipe D6The seventh diode D7Single-pole double-throw switch S and reluctance motor winding L2、L3、L4、L5The method is characterized in that: under the condition of not additionally increasing charging hardware equipment, reconstructing circuits of a driving motor and an inverter, and converting the circuits into a battery charging circuit; the circuit topology has the functions of motor driving, energy feedback and PFC correction;
wherein the lithium battery VbPositive electrode of (2) and first switching tube Q1Emitter and first diode D1The positive pole of the first switching tube Q1Collector electrode of, and first diode D1Cathode and first inductor L1Is connected to the first inductor L1And the other end of the second switch tube Q2Collector electrode of, and second diode D2Cathode of (2), fourth diode D4Cathode of (2), fifth diode D5Cathode of (2), sixth diode D6Cathode, one end B of the single-pole double-throw switch S, and a seventh diode D7Cathode and third switching tube Q3The collector of the third switching tube Q3Emitter electrode, first capacitor C1One end of the third diode D3Cathode and fourth switching tube Q4Collector electrode of (1), sixth switching tube Q6Collector electrode, reluctance motor winding L4Is connected with one end A of a single-pole double-throw switch S, and the fifth switch tube Q5Collector and fourth diode D4Anode and reluctance machine winding L2Is connected to the winding L of the reluctance motor2And the other end of the second switch tube Q4Of said seventh switching tube Q7Collector and fifth diode D5Anode and reluctance machine winding L3Is connected to the winding L of the reluctance motor3And the other end of the first switch tube Q6Is connected with the emitting electrode of the eighth switching tube Q8Collector and sixth diode D6Anode and reluctance machine winding L4Is connected to the ninth switching tube Q9Collector and seventh diode D7Anode and magnet ofResistance motor winding L5Is connected to the winding L of the reluctance motor5The other end of the first switch is connected with a single-pole double-throw switch S, and a ninth switch tube Q9Emitter electrode of, and eighth switching tube Q8Emitter electrode of, and seventh switching tube Q7Emitter electrode of, fifth switching tube Q5Emitter of (2), third diode D3Anode of, first capacitor C1Another terminal of (1), a second diode D2Anode of (2), second switch tube Q2And lithium battery VbThe negative electrode of (1) is connected;
the first to ninth switching tubes Q1-Q9All adopt PWM control, the first switch tube Q1For safety control of the charging of a lithium battery, the second switching tube Q2For controlling the step-up regulation, the sixth switching tube Q6For controlling the regulation of the step-down voltage, the fourth switching tube Q4And a sixth switching tube Q6The third switching tube Q is used for controlling charging in a charging mode and is always conducted in a driving mode3The fifth switch tube Q is always connected in a driving state and is always disconnected in a charging state5Seventh switch tube Q7The eighth switch tube Q8And a ninth switching tube Q9The phase difference of the pulses is 60 degrees in sequence, and the control duty ratio D is equal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810064994.1A CN108173430B (en) | 2018-01-23 | 2018-01-23 | Vehicle-mounted AC/DC charging and driving circuit topology based on reluctance motor winding reconstruction |
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| CN201810064994.1A CN108173430B (en) | 2018-01-23 | 2018-01-23 | Vehicle-mounted AC/DC charging and driving circuit topology based on reluctance motor winding reconstruction |
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| CN108173430B true CN108173430B (en) | 2020-02-21 |
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| CN111434513B (en) * | 2019-06-30 | 2021-02-23 | 比亚迪股份有限公司 | Vehicle and energy conversion device and power system thereof |
| CN112550023B (en) * | 2020-11-24 | 2022-05-10 | 广州橙行智动汽车科技有限公司 | Electric automobile electric integration device and method and electric automobile |
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