CN115320363B - Series hybrid electric vehicle system and power control method - Google Patents

Series hybrid electric vehicle system and power control method Download PDF

Info

Publication number
CN115320363B
CN115320363B CN202210924761.0A CN202210924761A CN115320363B CN 115320363 B CN115320363 B CN 115320363B CN 202210924761 A CN202210924761 A CN 202210924761A CN 115320363 B CN115320363 B CN 115320363B
Authority
CN
China
Prior art keywords
power
automobile
brushless doubly
fed motor
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210924761.0A
Other languages
Chinese (zh)
Other versions
CN115320363A (en
Inventor
孔铭
张诗娟
杨海艳
乔良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Sanyi Semiconductor Technology Co ltd
Original Assignee
Dongguan Sanyi Semiconductor Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Sanyi Semiconductor Technology Co ltd filed Critical Dongguan Sanyi Semiconductor Technology Co ltd
Priority to CN202210924761.0A priority Critical patent/CN115320363B/en
Publication of CN115320363A publication Critical patent/CN115320363A/en
Application granted granted Critical
Publication of CN115320363B publication Critical patent/CN115320363B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0644—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • 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
    • Y02T10/62—Hybrid vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to the technical field of power automobiles, and particularly discloses a series hybrid power automobile system and a power control method, wherein the system comprises an automobile internal combustion engine, a brushless doubly-fed motor, an automobile driving motor, an automobile power battery and a three-phase bridge circuit, wherein the automobile internal combustion engine is coaxially connected with the brushless doubly-fed motor; the anode and the cathode of the automobile power battery are respectively connected with the anode end of the common anode group and the cathode end of the common cathode group in the three-phase bridge circuit; the power winding of the brushless doubly-fed motor is connected with the automobile driving motor; the three-phase bridge circuit is connected with the control winding of the brushless doubly-fed motor. The invention drives the automobile driving motor by the voltage with adjustable power winding output amplitude and frequency of the brushless doubly-fed motor, omits a motor control inverter used in the prior art, reduces the cost of an automobile power system, reduces the space required by the automobile power system and improves the transmission efficiency of the automobile.

Description

Series hybrid electric vehicle system and power control method
Technical Field
The invention relates to the technical field of power automobiles, in particular to a series hybrid power automobile system and a power control method.
Background
With the popularization of the green life concept, vehicles applying pure electric or other new energy power are more and more in the global scope, wherein vehicles such as buses and taxis can better apply the new energy power. Because of the large difference between the total weight of the vehicle and the operation condition, the transportation type heavy vehicle is still in the preliminary stage by using the pure electric technology. Three types of power schemes exist in the urban transport vehicle at present, namely, the heavy vehicle with large total mass or long operation mileage adopts the traditional scheme; the second is pure electric power, which is applied to vehicles with smaller total mass or short operation mileage; the third category is hybrid power, and the total mass and the operation mileage are moderate. The hybrid vehicles are generally classified into three types, serial, parallel and hybrid, according to power transmission routes. The series structure is suitable for frequent starting and low-speed operation conditions in cities, and the engine can be regulated to stably operate near an optimal operating point, so that the efficiency of the engine is improved, the exhaust emission is reduced, and a simple structure diagram of the series hybrid electric vehicle is shown in fig. 1.
At present, large-sized vehicles such as passenger cars, tracked vehicles and the like mainly adopt series hybrid power configuration, but the following problems still exist: the power transmission path is provided with a full-power converter, and the electric energy generated by the generator is firstly integrated into direct current and then is inverted to supply power to the motor. The full-power converter has high cost and large volume and can influence the transmission efficiency of the whole vehicle.
Therefore, a new solution to the above-mentioned problems is needed for those skilled in the art.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a series hybrid electric vehicle system and a power control method.
The invention comprises a series hybrid electric vehicle system, which comprises an internal combustion engine, a brushless double-fed motor, a driving motor, a power battery and a three-phase bridge circuit, wherein,
the automobile internal combustion engine is coaxially connected with the brushless double-fed motor;
the anode and the cathode of the automobile power battery are respectively connected with the anode end of the common anode group and the cathode end of the common cathode group in the three-phase bridge circuit;
the power winding of the brushless doubly-fed motor is connected with the automobile driving motor, and voltage with adjustable amplitude and frequency is output to the automobile driving motor;
the three-phase bridge circuit is connected with the control winding of the brushless doubly-fed motor and provides exciting current with variable frequency for the brushless doubly-fed motor.
The invention also comprises a power control method of the series hybrid electric vehicle, which is applied to the series hybrid electric vehicle system, and comprises the following steps:
when the rotation speed of the automobile is required to be changed rapidly, the rotation speed of the automobile internal combustion engine is kept unchanged, then the frequency of exciting current obtained by the brushless doubly-fed motor is regulated through the three-phase bridge circuit, the voltage frequency output by the power winding of the brushless doubly-fed motor to the automobile driving motor is changed, and then the rotation speed of the automobile internal combustion engine is regulated to enable the automobile internal combustion engine to operate in a section with highest fuel economy.
Further, the relationship between the frequency of the voltage output by the power winding of the brushless doubly-fed motor and the frequency of the exciting current obtained by the control winding of the brushless doubly-fed motor is:
wherein f c Frequency, p of excitation current obtained for control winding of brushless doubly-fed motor c Pole pair number, p, of control winding for brushless doubly-fed motor p Pole pair number, n, of power windings for a brushless doubly-fed motor r Is the rotating speed of the brushless doubly-fed motor.
Further, the power control method further includes:
when the automobile is braking or descending a slope, the three-phase bridge circuit outputs a frequency opposite to the phase sequence of the power winding of the brushless doubly-fed motor.
Further, the power control method further includes:
when the automobile normally operates, the excitation phase sequence of the control winding of the brushless doubly-fed motor is adjusted, and the automobile power battery is charged or discharged.
Further, the power relationship of the power winding and the control winding of the brushless doubly-fed motor is consistent with the frequency relationship.
According to the series hybrid electric vehicle system and the power control method, the vehicle driving motor is driven by the voltage with adjustable power winding output amplitude and frequency of the brushless doubly-fed motor, a motor control inverter used in the prior art is omitted, the cost of the vehicle power system is reduced, the space required by the vehicle power system is reduced, the transmission efficiency of the vehicle is improved, meanwhile, the brushless doubly-fed motor is excited by the power winding and the control winding at the same time, flexible control according to the vehicle working condition is facilitated, and the control winding of the brushless doubly-fed motor can realize bidirectional flow of power by adjusting excitation, so that the acceleration capacity and the energy recovery capacity during deceleration of the vehicle are improved.
Drawings
For a clearer description of embodiments of the invention or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a structural view of a prior art series hybrid vehicle;
fig. 2 is a structural diagram of a series hybrid vehicle according to an embodiment of the present invention;
the motor comprises a 1-automobile internal combustion engine, a 2-brushless doubly-fed motor, a 201-power winding, a 202-control winding, a 3-automobile driving motor, a 4-automobile power battery, a 5-three-phase bridge circuit and 6-wheels.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The invention discloses a series hybrid electric vehicle system based on a brushless doubly-fed motor, which is shown in fig. 2 and comprises an internal combustion engine 1, the brushless doubly-fed motor 2, a driving motor 3, a power battery 4 and a three-phase bridge circuit 5, wherein the internal combustion engine 1 is coaxially connected with the brushless doubly-fed motor 2; the anode and the cathode of the automobile power battery 4 are respectively connected with the anode end of the common anode group and the cathode end of the common cathode group of the three-phase bridge circuit 5; the power winding 201 of the brushless doubly-fed motor 2 is connected with the automobile driving motor 3, and voltage with adjustable amplitude and frequency is output to the automobile driving motor 3; the three-phase bridge circuit 5 is connected to the control winding 202 of the brushless doubly-fed motor 2 and supplies a variable frequency excitation current to the brushless doubly-fed motor 2.
As shown in fig. 2, when the tandem hybrid vehicle system of the present embodiment is applied to a hybrid vehicle, the vehicle driving motor 3 is in driving connection with the wheels 6 of the vehicle. The brushless doubly-fed motor 2 has two stator windings, one of which is a power winding 201, outputs voltage with adjustable amplitude and frequency to the automobile driving motor 3, is directly connected with the automobile driving motor 3 to provide power for the automobile, and the other is a control winding 202, is connected with the automobile power battery 4, and provides exciting current with variable frequency for the brushless doubly-fed motor 2 according to the running condition of the automobile. The power control manner of the system according to the embodiment of the present invention is described in the following embodiment, and the description thereof will not be repeated here.
The invention also comprises a power control method of the series hybrid electric vehicle, which is applied to the series hybrid electric vehicle system, and comprises the following steps:
when the rotation speed of the automobile is required to be changed rapidly, the rotation speed of the automobile internal combustion engine is kept unchanged, then the frequency of exciting current obtained by the brushless doubly-fed motor is regulated through the three-phase bridge circuit, the voltage frequency output by the power winding of the brushless doubly-fed motor to the automobile driving motor is changed, and then the rotation speed of the automobile internal combustion engine is regulated to enable the automobile internal combustion engine to operate in a section with highest fuel economy.
In this embodiment, when the rotational speed of the vehicle needs to be changed rapidly, the output frequency of the power winding, that is, the frequency of the driving motor of the vehicle, may be changed by adjusting the excitation frequency of the control winding, so as to achieve rapid change of the rotational speed. The rotation speed expression of the automobile driving motor is as follows:where f is the frequency and p is the pole pair number of the motor. In general, the rotational speed of an automotive drive motor can be changed by adjusting the frequency. In a conventional series hybrid vehicle system, the frequency modulation function of the present embodiment is implemented by an inverter in a rectifying exchanger. In the method provided by the invention, the power winding can directly output voltage with variable amplitude and frequency to supply power for the automobile driving motor, so that an inverter in a traditional hybrid power automobile system is omitted.
Specifically, the relationship between the frequency of the voltage output by the power winding of the brushless doubly-fed motor and the frequency of the exciting current obtained by the control winding of the brushless doubly-fed motor is:wherein f c Frequency, p of excitation current obtained for control winding of brushless doubly-fed motor c Pole pair number, p, of control winding for brushless doubly-fed motor p Pole pair number, n, of power windings for a brushless doubly-fed motor r Is the rotating speed of the brushless doubly-fed motor.
The rotational speed calculation mode of the brushless double-fed motor is combined:it can be deduced that the relation between the voltage frequency output by the power winding of the brushless doubly-fed motor and the frequency of the exciting current obtained by the control winding of the brushless doubly-fed motor in this embodiment is that the rotational speed of the brushless doubly-fed motor is determined by the frequencies of the two sets of stator windings together according to the above relation, so that the frequency of the required power winding can be obtained by changing the exciting frequency of the control winding at a given rotational speed. In the process, because the output frequency of the power winding is determined by the rotation speed of the brushless doubly-fed motor, the rotation speed of the automobile internal combustion engine and the excitation frequency of the control winding, the rotation speed of the automobile internal combustion engine can be kept unchanged during acceleration and deceleration, the kinetic energy required by automobile speed regulation is rapidly provided by the automobile power battery, the dynamic characteristic of the whole automobile is improved, and then the automobile internal combustion engine is regulatedThe rotating speed enables the internal combustion engine of the automobile to operate in a section with highest fuel economy, so that the fuel consumption is reduced, and at the moment, the control winding of the brushless doubly-fed motor ensures the frequency required by the output of the power winding according to the corresponding adjusting frequency of the rotating speed of the motor.
In the embodiment of the invention, the power relationship between the power winding and the control winding of the brushless doubly-fed motor is consistent with the frequency relationship. The power relation between the power windings and the control windings of the two stator windings of the brushless doubly-fed motor approximately meets the following conditionsWherein P is p And P c Active power of the power winding and the control winding are respectively expressed, wherein f is expressed in the expression c The sign of (1) can be positive or negative, when the sign is positive, the phase sequence of the control winding is consistent with the phase sequence of the power winding, the power relationship of the control winding and the power winding is consistent, and the two stator windings of the brushless doubly-fed motor output power to a load; when it is negative, it means that the control winding phase sequence is opposite to the power winding phase sequence, the power relationship of the two is opposite, the power winding of the brushless doubly fed motor outputs power to the load, and the control winding needs to absorb part of the power from the load.
Therefore, in the embodiment of the invention, when the automobile is braked or descends, the three-phase bridge circuit at the control winding side can output the frequency opposite to the phase sequence of the power winding of the brushless doubly-fed motor, so that the power flow direction of the control winding of the brushless doubly-fed motor can be quickly changed, the braked energy can be recovered, and the automobile power battery can be charged. Similarly, when the automobile normally operates, the excitation phase sequence of the control winding of the brushless doubly-fed motor can be adjusted to charge or discharge the automobile power battery, so that the power loss of the whole automobile is optimized, and the self-sustaining force of the hybrid automobile system is improved.
According to the series hybrid electric vehicle system and the power control method, the vehicle driving motor is driven by the voltage with adjustable power winding output amplitude and frequency of the brushless doubly-fed motor, a motor control inverter used in the prior art is omitted, the cost of the vehicle power system is reduced, the space required by the vehicle power system is reduced, the transmission efficiency of the vehicle is improved, meanwhile, the brushless doubly-fed motor is excited by the power winding and the control winding at the same time, flexible control according to the vehicle working condition is facilitated, and the control winding of the brushless doubly-fed motor can realize bidirectional flow of power by adjusting excitation, so that the acceleration capacity and the energy recovery capacity during deceleration of the vehicle are improved.
The invention has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the invention, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims (5)

1. The power control method of the series hybrid electric vehicle is characterized by being applied to a series hybrid electric vehicle system, wherein the system comprises an internal combustion engine of the vehicle, a brushless doubly-fed motor, a driving motor of the vehicle, a power battery of the vehicle and a three-phase bridge circuit, and the internal combustion engine of the vehicle is coaxially connected with the brushless doubly-fed motor; the anode and the cathode of the automobile power battery are respectively connected with the anode end of the common anode group and the cathode end of the common cathode group in the three-phase bridge circuit; the power winding of the brushless doubly-fed motor is connected with the automobile driving motor, and voltage with adjustable amplitude and frequency is output to the automobile driving motor; the three-phase bridge circuit is connected with a control winding of the brushless doubly-fed motor and used for providing exciting current with variable frequency for the brushless doubly-fed motor; the rotating speed of the brushless doubly-fed motor is jointly determined by the frequencies of two sets of stator windings, and the excitation frequency of the control winding is changed to obtain the required frequency of the power winding under the given rotating speed; the output frequency of the power winding is determined by the rotating speed of the brushless doubly-fed motor, the rotating speed of the automobile internal combustion engine and the excitation frequency of the control winding;
the method comprises the following steps:
when the rotation speed of the automobile is required to be changed rapidly, firstly, the rotation speed of the automobile internal combustion engine is kept unchanged, then, the frequency of exciting current obtained by the brushless doubly-fed motor is regulated through the three-phase bridge circuit, the voltage frequency output by a power winding of the brushless doubly-fed motor to the automobile driving motor is changed, and then, the rotation speed of the automobile internal combustion engine is regulated to enable the automobile internal combustion engine to operate in a zone with highest fuel economy.
2. The power control method of a series hybrid vehicle according to claim 1, wherein a relationship between a voltage frequency of a power winding output of the brushless doubly-fed motor and a frequency of an exciting current obtained by a control winding of the brushless doubly-fed motor is:wherein->Frequency of excitation current obtained for control winding of said brushless doubly-fed motor, +.>For the pole pair number of the control winding of the brushless doubly-fed motor, < >>For the pole pair number of the power windings of the brushless doubly-fed motor, < >>Is the rotational speed of the brushless doubly-fed motor.
3. The power control method of a series hybrid vehicle according to claim 1, characterized in that the method further comprises:
when the automobile is braked or descends, the three-phase bridge circuit outputs frequency opposite to the phase sequence of the power winding of the brushless doubly-fed motor.
4. The power control method of a series hybrid vehicle according to claim 1, characterized in that the method further comprises:
and when the automobile normally operates, the excitation phase sequence of the control winding of the brushless doubly-fed motor is adjusted, and the automobile power battery is charged or discharged.
5. The power control method of a series hybrid vehicle according to any one of claims 1 to 4, wherein a power relationship of the power winding and the control winding of the brushless doubly-fed motor is identical to a frequency relationship.
CN202210924761.0A 2022-08-02 2022-08-02 Series hybrid electric vehicle system and power control method Active CN115320363B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210924761.0A CN115320363B (en) 2022-08-02 2022-08-02 Series hybrid electric vehicle system and power control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210924761.0A CN115320363B (en) 2022-08-02 2022-08-02 Series hybrid electric vehicle system and power control method

Publications (2)

Publication Number Publication Date
CN115320363A CN115320363A (en) 2022-11-11
CN115320363B true CN115320363B (en) 2024-01-30

Family

ID=83921947

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210924761.0A Active CN115320363B (en) 2022-08-02 2022-08-02 Series hybrid electric vehicle system and power control method

Country Status (1)

Country Link
CN (1) CN115320363B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201291752Y (en) * 2008-10-17 2009-08-19 东南大学 Speed regulating device of input power distribution type hybrid electric vehicle
CN102079250A (en) * 2009-11-30 2011-06-01 沈阳工业大学 Brushless double-fed motor driving system of electric vehicle and control method thereof
CN102358198A (en) * 2011-08-24 2012-02-22 南京航空航天大学 Electric vehicle mounted power generation system and control method thereof
JP2013241129A (en) * 2012-05-22 2013-12-05 Honda Motor Co Ltd Electric power generation control device for hybrid vehicle
WO2021014488A1 (en) * 2019-07-19 2021-01-28 ヤマハ発動機株式会社 Series hybrid vehicle
WO2021163839A1 (en) * 2020-02-17 2021-08-26 大连理工大学 Fuel cell vehicle power system based on double-source motor
CN113547908A (en) * 2021-09-03 2021-10-26 易事特集团股份有限公司 Hybrid power system and control method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201291752Y (en) * 2008-10-17 2009-08-19 东南大学 Speed regulating device of input power distribution type hybrid electric vehicle
CN102079250A (en) * 2009-11-30 2011-06-01 沈阳工业大学 Brushless double-fed motor driving system of electric vehicle and control method thereof
CN102358198A (en) * 2011-08-24 2012-02-22 南京航空航天大学 Electric vehicle mounted power generation system and control method thereof
JP2013241129A (en) * 2012-05-22 2013-12-05 Honda Motor Co Ltd Electric power generation control device for hybrid vehicle
WO2021014488A1 (en) * 2019-07-19 2021-01-28 ヤマハ発動機株式会社 Series hybrid vehicle
WO2021163839A1 (en) * 2020-02-17 2021-08-26 大连理工大学 Fuel cell vehicle power system based on double-source motor
CN113547908A (en) * 2021-09-03 2021-10-26 易事特集团股份有限公司 Hybrid power system and control method thereof

Also Published As

Publication number Publication date
CN115320363A (en) 2022-11-11

Similar Documents

Publication Publication Date Title
US6580977B2 (en) High efficiency fuel cell and battery for a hybrid powertrain
JP3219039B2 (en) Electric vehicle electric system
US8897942B2 (en) Control device for hybrid vehicle, and hybrid vehicle equipped with control device
PH12015500081B1 (en) A dual-structured electric drive and power system for hybrid vehicles
CN101633309A (en) Series hybrid electric vehicle (SHEV) driving device and control method
CN103042948A (en) Controlling torque ripple in interior permanent magnet machines
JPH09224304A (en) Hybrid automobile
US20210276536A1 (en) Vehicle
CN115320363B (en) Series hybrid electric vehicle system and power control method
JPH07264708A (en) Decelerating energy regenerative system for vehicle
CN115503685A (en) Mode switching control method for dump truck with E-power architecture
JP2019163051A (en) Control device of hybrid vehicle
US9663100B2 (en) Hybrid vehicle
JPH11332015A (en) Hybrid vehicle driving apparatus and method therefor
JP2021146772A (en) Vehicle drive device
Gebrehiwot et al. Range extenders for electric vehicles
CN2860920Y (en) Solar energy car
CN100434298C (en) Solar car
JP2006136131A (en) Controller for vehicle
AU2021100240A4 (en) Electric Bicycle with self-recharging Unit
KR100820403B1 (en) Reduction gear of motor for hybrid vehicle
JP3871248B2 (en) Hybrid vehicle drive system
US20210276530A1 (en) Vehicle
JP4274092B2 (en) Vehicle control device, vehicle equipped with the control device, and control method
US20230211657A1 (en) Control method of four-wheel drive system with boosting operation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant