CN111786605A - Control method of motor controller special for range extender - Google Patents

Control method of motor controller special for range extender Download PDF

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Publication number
CN111786605A
CN111786605A CN202010543792.2A CN202010543792A CN111786605A CN 111786605 A CN111786605 A CN 111786605A CN 202010543792 A CN202010543792 A CN 202010543792A CN 111786605 A CN111786605 A CN 111786605A
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China
Prior art keywords
axis
voltage
current
coordinate system
rotating coordinate
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Pending
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CN202010543792.2A
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Chinese (zh)
Inventor
赵鹏飞
舒涌
赖发东
李田
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Hangzhou Heri New Energy Technology Co ltd
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Hangzhou Heri New Energy Technology Co ltd
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Priority to CN202010543792.2A priority Critical patent/CN111786605A/en
Publication of CN111786605A publication Critical patent/CN111786605A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/14Estimation or adaptation of machine parameters, e.g. flux, current or voltage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/0085Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for high speeds, e.g. above nominal speed
    • H02P21/0089Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for high speeds, e.g. above nominal speed using field weakening
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P21/00Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/22Current control, e.g. using a current control loop
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

The invention discloses a control method of a special motor controller for a range extender, which comprises the following steps: s1, establishing a rotating coordinate system based on the range extender motor rotor; s2, obtaining reference currents of a d axis and a q axis in the rotating coordinate system in the S1 through a display lookup table; s3, outputting quadrature axis voltage after the reference current of the q axis sequentially passes through amplitude limiting, q axis current superposition correction, a quadrature axis current controller and feedback processing; and the reference current of the d axis outputs direct axis voltage after sequentially carrying out amplitude limiting, d axis current superposition correction, quadrature axis current controller and feedback processing. The function of the deep weak magnetic control of the motor is realized through the combination of a multi-dimensional table look-up table (LUT) technology and a voltage feedback regulation method.

Description

Control method of motor controller special for range extender
Technical Field
The invention relates to the technical field of range extenders, in particular to a control method of a motor controller special for a range extender.
Background
The extended range electric vehicle can achieve all power performances under a pure electric mode, and when the vehicle-mounted rechargeable energy storage system cannot meet the requirement of the endurance mileage, the vehicle-mounted auxiliary power supply is turned on to provide electric energy for the power system so as to prolong the endurance mileage.
The motor controller is used for controlling the running state of a point motor and plays an important role in a range extender, and in the motor controller control method in the prior art, the reference currents of a d axis and a q axis of a motor rotor are directly given, so that the control accuracy of the motor is not high.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a motor controller control method special for a range extender.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a control method of a motor controller special for a range extender comprises the following steps:
s1, establishing a rotating coordinate system based on the range extender motor rotor;
s2, obtaining reference currents of a d axis and a q axis in the rotating coordinate system in the S1 through a display lookup table;
s3, outputting quadrature axis voltage after the reference current of the q axis sequentially passes through amplitude limiting, q axis current superposition correction, a quadrature axis current controller and feedback processing; and the reference current of the d axis outputs direct axis voltage after sequentially carrying out amplitude limiting, d axis current superposition correction, quadrature axis current controller and feedback processing.
In the technical scheme, a current instruction is input into a display lookup table, reference currents of a d axis and a q axis in a rotating coordinate system are obtained, the reference currents of the q axis are subjected to amplitude limiting processing through an amplitude limiting output module, then quadrature axis voltage is output through a quadrature axis current controller after correction and superposition of the q axis current, and the quadrature axis output voltage performs feedback correction on the q axis reference current; similarly, the reference current of the d axis is subjected to correction and superposition of the direct axis current, then the direct axis voltage is output through the direct axis current controller, and the direct axis reference current is subjected to feedback correction through the direct axis output voltage. The technology realizes the function of deep flux weakening control of the motor through the combination of a multi-dimensional table look-up table (LUT) technology and a voltage feedback regulation method.
Preferably, the voltage feedback processing method includes the steps of:
a1, calculating to obtain voltage under a rotating coordinate system through quadrature axis output voltage and direct axis output voltage;
and A2, correcting the voltage under the rotating coordinate system through the direct-current voltage, enabling the voltage under the rotating coordinate system to sequentially pass through a low-pass filter, a flux-weakening PI controller and an amplitude limiting, and correcting the d-axis current reference value and the q-axis current reference value respectively.
In the technical scheme, the low-pass filtering and the amplitude limiting processing remove system interference, and the precision of voltage feedback processing is improved.
Preferably, the voltage in the rotating coordinate system
Figure BDA0002539834220000021
Wherein u isdFor the direct-axis output voltage uqThe voltage is output for quadrature axis.
The invention has the beneficial effects that:
according to the invention, a current instruction is input into a display lookup table, reference currents of a d axis and a q axis in a rotating coordinate system are obtained, the reference current of the q axis is subjected to amplitude limiting processing through an amplitude limiting output module, then a quadrature axis voltage is output through a quadrature axis current controller after the q axis current is corrected and superposed, and the quadrature axis output voltage performs feedback correction on the q axis reference current; similarly, the reference current of the d axis is subjected to correction and superposition of the direct axis current, then the direct axis voltage is output through the direct axis current controller, and the direct axis reference current is subjected to feedback correction through the direct axis output voltage. The technology realizes the function of deep flux weakening control of the motor through the combination of a multi-dimensional table look-up table (LUT) technology and a voltage feedback regulation method.
Drawings
FIG. 1 is a schematic diagram of a control method of a motor controller dedicated to a range extender of the present invention;
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the method for controlling a dedicated motor controller for a range extender of this embodiment includes the following steps:
s1, establishing a rotating coordinate system based on the range extender motor rotor;
s2, obtaining reference currents of a d axis and a q axis in the rotating coordinate system in the S1 through a display lookup table;
s3, outputting quadrature axis voltage after the reference current of the q axis sequentially passes through amplitude limiting, q axis current superposition correction, a quadrature axis current controller and feedback processing; and the reference current of the d axis outputs direct axis voltage after sequentially carrying out amplitude limiting, d axis current superposition correction, quadrature axis current controller and feedback processing.
In this embodiment, the voltage feedback processing method includes the following steps:
a1, calculating to obtain voltage under a rotating coordinate system through quadrature axis output voltage and direct axis output voltage;
and A2, correcting the voltage under the rotating coordinate system through the direct-current voltage, enabling the voltage under the rotating coordinate system to sequentially pass through a low-pass filter, a flux-weakening PI controller and an amplitude limiting, and correcting the d-axis current reference value and the q-axis current reference value respectively.
In this embodiment, the voltage under the rotating coordinate system
Figure BDA0002539834220000031
Wherein u isdFor the direct-axis output voltage uqThe voltage is output for quadrature axis.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Simple substitutions without changing the inventive content of the present invention are considered to be the same. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (3)

1. A control method of a motor controller special for a range extender is characterized by comprising the following steps:
s1, establishing a rotating coordinate system based on the range extender motor rotor;
s2, obtaining reference currents of a d axis and a q axis in the rotating coordinate system in the S1 through a display lookup table;
s3, outputting quadrature axis voltage after the reference current of the q axis sequentially passes through amplitude limiting, q axis current superposition correction, a quadrature axis current controller and feedback processing; and the reference current of the d axis outputs direct axis voltage after sequentially carrying out amplitude limiting, d axis current superposition correction, quadrature axis current controller and feedback processing.
2. The method for controlling the motor controller special for the range extender according to claim 1, wherein the voltage feedback processing method comprises the following steps:
a1, calculating to obtain voltage under a rotating coordinate system through quadrature axis output voltage and direct axis output voltage;
and A2, correcting the voltage under the rotating coordinate system through the direct-current voltage, enabling the voltage under the rotating coordinate system to sequentially pass through a low-pass filter, a flux-weakening PI controller and an amplitude limiting, and correcting the d-axis current reference value and the q-axis current reference value respectively.
3. The method for controlling the motor controller dedicated for the range extender according to claim 1 or 2, wherein the voltage under the rotating coordinate system
Figure FDA0002539834210000011
Wherein u isdFor the direct-axis output voltage uqThe voltage is output for quadrature axis.
CN202010543792.2A 2020-06-15 2020-06-15 Control method of motor controller special for range extender Pending CN111786605A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113415174A (en) * 2021-06-25 2021-09-21 北京航天发射技术研究所 Bus current limiting control method and related device for vehicle motor controller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533305A (en) * 2016-12-26 2017-03-22 广东美的制冷设备有限公司 Permanent magnet synchronous motor system and field-weakening control method and device thereof
CN106712631A (en) * 2016-12-26 2017-05-24 广东美的制冷设备有限公司 Permanent magnet synchronous motor system, field weakening control method and device thereof
CN106712630A (en) * 2016-12-26 2017-05-24 广东美的制冷设备有限公司 Permanent magnetic synchronous motor system, field weakening control method thereof, and field weakening control device thereof
CN207442723U (en) * 2017-09-29 2018-06-01 吉林大学 Open winding electric machine drive system in automobile-used dual energy source

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106533305A (en) * 2016-12-26 2017-03-22 广东美的制冷设备有限公司 Permanent magnet synchronous motor system and field-weakening control method and device thereof
CN106712631A (en) * 2016-12-26 2017-05-24 广东美的制冷设备有限公司 Permanent magnet synchronous motor system, field weakening control method and device thereof
CN106712630A (en) * 2016-12-26 2017-05-24 广东美的制冷设备有限公司 Permanent magnetic synchronous motor system, field weakening control method thereof, and field weakening control device thereof
CN207442723U (en) * 2017-09-29 2018-06-01 吉林大学 Open winding electric machine drive system in automobile-used dual energy source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113415174A (en) * 2021-06-25 2021-09-21 北京航天发射技术研究所 Bus current limiting control method and related device for vehicle motor controller

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Application publication date: 20201016