CN107733309A - A kind of weak magnetic control system used for electric vehicle based on dutycycle - Google Patents
A kind of weak magnetic control system used for electric vehicle based on dutycycle Download PDFInfo
- Publication number
- CN107733309A CN107733309A CN201711100169.4A CN201711100169A CN107733309A CN 107733309 A CN107733309 A CN 107733309A CN 201711100169 A CN201711100169 A CN 201711100169A CN 107733309 A CN107733309 A CN 107733309A
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- China
- Prior art keywords
- machine controller
- electric machine
- dutycycle
- motor
- weak magnetic
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Abstract
A kind of weak magnetic control system used for electric vehicle based on dutycycle, including battery supply, gas pedal, electric machine controller, motor, described battery supply, electric machine controller, motor are sequentially connected, described electric machine controller is also connected with gas pedal, described electric machine controller includes current regulating module, Vector Pulse Width Modulation device and transistor, described current regulating module is connected with the input of Vector Pulse Width Modulation device, the output end connection of described transistor AND gate Vector Pulse Width Modulation device, described transistor output and motor connection；The present invention can realize weak magnetic control in a wide range, when motor base speed is following, it can realize that permanent torque is run, in the permagnetic synchronous motor base speed above, output-constant operation can be realized by weak magnetic control so that it all has higher closed-loop control precision, the present invention is applied widely, control logic is simple, and amount of calculation is small, and control effect disclosure satisfy that requirement.
Description
Technical field
The invention belongs to motor device field, and system is controlled more particularly, to a kind of weak magnetic used for electric vehicle based on dutycycle
System.
Background technology
Motor automobile motor rotational speed regulation scope is big, is controlled using permanent torque under base speed scope, is adopted more than radix
Use power limitation control.Generally controlled in electric vehicle motor controller using based on rotor field, when rotating speed raises, anti-electricity
Gesture can raise, in order to prevent back-emf from exceeding voltage limit, it is necessary to exciting curent be reduced, to improve rotating speed control.Common is weak
Magnetism method is one weak magnetic ring of increase, and electric machine controller monitors the current given voltage of motor, if given voltage exceedes voltage
During limitation, by PI links, form negative-feedback and give a little Id more to electric current loop, voltage higher position, voltage is low just to give a little Id less, makes control
Voltage is maintained in given voltage.Current busbar voltage is calculated typically by Ud and Uq, is compared with virtual voltage, and then
Adjust the calculating that the increase of id. this method calculates current busbar voltage, the complexity for becoming calculating.
The content of the invention
In view of this, it is the present invention is directed to propose a kind of simple in construction, be easy to control based on the used for electric vehicle of dutycycle
Weak magnetic control system.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of weak magnetic control system used for electric vehicle based on dutycycle, including battery supply, gas pedal, motor control
Device, motor, described battery supply, electric machine controller, motor are sequentially connected, and described electric machine controller also connects with gas pedal
Connect, described electric machine controller includes current regulating module, Vector Pulse Width Modulation device and transistor, described current regulating module
It is connected with the input of Vector Pulse Width Modulation device, the output end connection of described transistor AND gate Vector Pulse Width Modulation device is described
Transistor output and motor connection.
Further, described current regulating module includes the first electric current loop adjuster and the second electric current loop adjuster, described
Battery supply be connected respectively with the first electric current loop adjuster, the second electric current loop adjuster.
Further, described electric machine controller also includes dutycycle calculator, the 3rd electric current loop adjuster, described battery
Power supply, the 3rd electric current loop adjuster and dutycycle calculator are sequentially connected.
Further, photoelectric code disk feedback link is also passed through between described electric machine controller and motor.Described photoelectric code
Disk is used to obtain motor position and rotating speed relevant information.
Further, described transistor is insulated gate bipolar transistor IGBT.
Relative to prior art, a kind of weak magnetic control system used for electric vehicle based on dutycycle of the present invention has
Following advantage：
Control range of the present invention is wider, when permagnetic synchronous motor base speed is following, it is possible to achieve permanent torque is run；In permanent magnetism
During the synchronous motor base speed above, output-constant operation can be realized.While based on vector controlled, calculated according to dutycycle calculator
Go out the action time of different sectors, and then controlled motor runtime so that it all has higher closed-loop control precision, this hair
Bright applied widely, control logic is simple, reduces electric machine controller amount of calculation, and control effect disclosure satisfy that vast application requirement.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation described in the embodiment of the present invention；
Fig. 2 is the principle schematic described in the embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of weak magnetic control system used for electric vehicle based on dutycycle, including battery supply, throttle are stepped on
Plate, electric machine controller, motor, described battery supply, electric machine controller, motor are sequentially connected, and described electric machine controller is also
It is connected with gas pedal, described electric machine controller includes current regulating module, Vector Pulse Width Modulation device and transistor, described
Current regulating module is connected with the input of Vector Pulse Width Modulation device, the output end of described transistor AND gate Vector Pulse Width Modulation device
Connection, described transistor output and motor connection.
Described current regulating module includes the first electric current loop adjuster and the second electric current loop adjuster, described battery electricity
Source is connected with the first electric current loop adjuster, the second electric current loop adjuster respectively.
Described electric machine controller also includes dutycycle calculator, the 3rd electric current loop adjuster, described battery supply, the
Three electric current loop adjusters and dutycycle calculator are sequentially connected.
Also pass through photoelectric code disk feedback link between described electric machine controller and motor.Described photoelectric code disk is used to obtain
Take motor position and rotating speed relevant information.
Described transistor is insulated gate bipolar transistor IGBT.
The principle of the invention：As shown in Fig. 2 when motor base speed is following, described electric machine controller can realize that permanent torque is transported
OK；In the permagnetic synchronous motor base speed above, electric machine controller can realize output-constant operation.Described dutycycle calculator is used
In the action time for calculating different sectors, so it is defeated by the Vector Pulse Width Modulation device switching switching voltage in electric machine controller
Go out the time, when dutycycle is higher than setting value, control reduces given exciting current Id；When dutycycle is less than setting value, control
System increases given exciting current Id, so that voltage control reaches the control effect of closed loop.The control method eliminates motor control
Calculating of the device processed to busbar voltage, electric machine controller processing is performed simplification, be easy to perform, simplify hardware configuration.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
- A kind of 1. weak magnetic control system used for electric vehicle based on dutycycle, it is characterised in that：Stepped on including battery supply, throttle Plate, electric machine controller, motor, described battery supply, electric machine controller, motor are sequentially connected, and described electric machine controller is also It is connected with gas pedal, described electric machine controller includes current regulating module, Vector Pulse Width Modulation device and transistor, described Current regulating module is connected with the input of Vector Pulse Width Modulation device, the output end of described transistor AND gate Vector Pulse Width Modulation device Connection, described transistor output and motor connection.
- A kind of 2. weak magnetic control system used for electric vehicle based on dutycycle according to claim 1, it is characterised in that：Institute The current regulating module stated includes the first electric current loop adjuster and the second electric current loop adjuster, and described battery supply is respectively with One electric current loop adjuster, the connection of the second electric current loop adjuster.
- A kind of 3. weak magnetic control system used for electric vehicle based on dutycycle according to claim 1, it is characterised in that：Institute The electric machine controller stated also includes dutycycle calculator, the 3rd electric current loop adjuster, and described battery supply, the 3rd electric current loop are adjusted Section device and dutycycle calculator are sequentially connected.
- A kind of 4. weak magnetic control system used for electric vehicle based on dutycycle according to claim 1, it is characterised in that：Institute Also by photoelectric code disk feedback link between the electric machine controller and motor stated.Described photoelectric code disk is used to obtain motor position With rotating speed relevant information.
- A kind of 5. weak magnetic control system used for electric vehicle based on dutycycle according to claim 1, it is characterised in that：Institute The transistor stated is insulated gate bipolar transistor IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100169.4A CN107733309A (en) | 2017-11-09 | 2017-11-09 | A kind of weak magnetic control system used for electric vehicle based on dutycycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100169.4A CN107733309A (en) | 2017-11-09 | 2017-11-09 | A kind of weak magnetic control system used for electric vehicle based on dutycycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107733309A true CN107733309A (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711100169.4A Pending CN107733309A (en) | 2017-11-09 | 2017-11-09 | A kind of weak magnetic control system used for electric vehicle based on dutycycle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056125A (en) * | 2021-12-24 | 2022-02-18 | 天津英捷利汽车技术有限责任公司 | Downhill speed-limiting protection method for pure electric vehicle |
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| CN1789033A (en) * | 2005-09-08 | 2006-06-21 | 武汉理工大学 | DSP-based flush type electric automobile frequency conversion control method and device |
| CN101207362A (en) * | 2006-12-19 | 2008-06-25 | 天津航天鑫茂稀土机电科技有限公司 | Controllable weak magnetic technique combining magnetic structure with vector control of permanent magnet motor |
| CN102098000A (en) * | 2011-01-27 | 2011-06-15 | 华中科技大学 | Weak magnetic speed regulating method for induction motor |
| CN103204069A (en) * | 2013-05-07 | 2013-07-17 | 湖南大学 | Electromobile range extender and control method |
| CN105680748A (en) * | 2016-03-17 | 2016-06-15 | 华南理工大学 | Variable PI flux-weakening control method and driving control apparatus for permanent magnet synchronous motor |
| CN105720875A (en) * | 2016-03-29 | 2016-06-29 | 浙江大学 | Z source and voltage source converter cooperative power supply-based control method for open winding permanent magnet synchronous motor |
| CN207460042U (en) * | 2017-11-09 | 2018-06-05 | 天津英捷利汽车技术有限责任公司 | A kind of weak magnetic control system of electric vehicle |
-
2017
- 2017-11-09 CN CN201711100169.4A patent/CN107733309A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789033A (en) * | 2005-09-08 | 2006-06-21 | 武汉理工大学 | DSP-based flush type electric automobile frequency conversion control method and device |
| CN101207362A (en) * | 2006-12-19 | 2008-06-25 | 天津航天鑫茂稀土机电科技有限公司 | Controllable weak magnetic technique combining magnetic structure with vector control of permanent magnet motor |
| CN102098000A (en) * | 2011-01-27 | 2011-06-15 | 华中科技大学 | Weak magnetic speed regulating method for induction motor |
| CN103204069A (en) * | 2013-05-07 | 2013-07-17 | 湖南大学 | Electromobile range extender and control method |
| CN105680748A (en) * | 2016-03-17 | 2016-06-15 | 华南理工大学 | Variable PI flux-weakening control method and driving control apparatus for permanent magnet synchronous motor |
| CN105720875A (en) * | 2016-03-29 | 2016-06-29 | 浙江大学 | Z source and voltage source converter cooperative power supply-based control method for open winding permanent magnet synchronous motor |
| CN207460042U (en) * | 2017-11-09 | 2018-06-05 | 天津英捷利汽车技术有限责任公司 | A kind of weak magnetic control system of electric vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056125A (en) * | 2021-12-24 | 2022-02-18 | 天津英捷利汽车技术有限责任公司 | Downhill speed-limiting protection method for pure electric vehicle |
| CN114056125B (en) * | 2021-12-24 | 2023-12-26 | 天津英捷利汽车技术有限责任公司 | Downhill speed limiting protection method for pure electric vehicle |
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