CN111786605A - Control method of motor controller special for range extender - Google Patents
Control method of motor controller special for range extender Download PDFInfo
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- 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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- axis
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- rotating coordinate
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- 239000004606 Fillers/Extenders Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003672 processing method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000009123 feedback regulation Effects 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric 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
- B60L50/62—Electric 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0085—Arrangements 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
- H02P21/0089—Arrangements 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/22—Current control, e.g. using a current control loop
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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
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- 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
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
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
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
Wherein u isdFor the direct-axis output voltage uqThe voltage is output for quadrature axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543792.2A CN111786605A (en) | 2020-06-15 | 2020-06-15 | Control method of motor controller special for range extender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543792.2A CN111786605A (en) | 2020-06-15 | 2020-06-15 | Control method of motor controller special for range extender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111786605A true CN111786605A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010543792.2A Pending CN111786605A (en) | 2020-06-15 | 2020-06-15 | Control method of motor controller special for range extender |
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Cited By (1)
| 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)
| 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 |
-
2020
- 2020-06-15 CN CN202010543792.2A patent/CN111786605A/en active Pending
Patent Citations (4)
| 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)
| 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 |