CN104702160A - Permanent-magnet brushless motor control system - Google Patents
Permanent-magnet brushless motor control system Download PDFInfo
- Publication number
- CN104702160A CN104702160A CN201310654158.6A CN201310654158A CN104702160A CN 104702160 A CN104702160 A CN 104702160A CN 201310654158 A CN201310654158 A CN 201310654158A CN 104702160 A CN104702160 A CN 104702160A
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- China
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- module
- current
- control system
- signal generation
- pwm signal
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
Abstract
The invention discloses a permanent-magnet brushless motor control system and belongs to the technical field of automatic control of brushless motors. The permanent-magnet brushless motor control system is characterized by comprising a control module (1), a current function module (2), a current regulating module (3), a flux-weakening angle calculating module (4), a motor revolving speed calculating module (5), a position sensing module (6), a current inverting position calculating module (7), a PWM (pulse width modulation) signal generating module (8) and an inverter circuit control module (9). Compared with the prior art, the permanent-magnet brushless motor control system has the advantages of simple structure, convenience in control, high reliability, convenience in maintenance and the like.
Description
Technical field
The invention belongs to brushless electric machine automatic control technology field, in particular, belong to a kind of permanent magnetic brushless control system.
Background technology
It is power that electric automobile refers to vehicle power, drives wheels travel with motor, meets the vehicle of road traffic, safety regulations requirements.Due to less relative to orthodox car to environmental impact, its prospect is extensively had an optimistic view of, but current techniques is still immature.The composition of electric automobile comprises: driven by power and the mechanical system such as control system, actuating force transmission, complete the equipment etc. of assigned tasks.Driven by power and control system are the cores of electric automobile, are also the maximum differences being different from internal-combustion engines vehicle.Driven by power and control system are made up of the speed-regulating control device etc. of drive motor, power supply and motor.Other devices of electric automobile are basic identical with internal-combustion engines vehicle.
Summary of the invention
The present invention, in order to effectively solve above technical problem, gives a kind of permanent magnetic brushless control system.
A kind of permanent magnetic brushless control system of the present invention, is characterized in that: comprise control module, current function module, current regulating module, weak magnetic degree computing module, motor speed calculating module, position sensing module, change of current position computation module, pwm signal generation module, inverter circuit control module; Wherein:
Described control module is connected with described current function module, and described current function module is connected with described current regulating module, and described current regulating module is connected with described pwm signal generation module;
Described position sensing module and described motor speed calculate module and are connected, described motor speed calculates module and is connected with described weak magnetic degree computing module, described weak magnetic degree computing module is connected with described pwm signal generation module, described position sensing module is connected with described change of current position computation module, described change of current position computation module is connected with described pwm signal generation module, and described pwm signal generation module is connected with described inverter circuit control module.
The present invention is compared with prior art: have structure simple, control the advantages such as convenient, reliability is high, easy to maintenance.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of permanent magnetic brushless control system of the present invention.
Embodiment
Fig. 1 is the structural representation of permanent magnetic brushless control system of the present invention, permanent magnetic brushless control system of the present invention, is characterized in that: comprise control module 1, current function module 2, current regulating module 3, weak magnetic degree computing module 4, motor speed calculating module 5, position sensing module 6, change of current position computation module 7, pwm signal generation module 8, inverter circuit control module 9; Wherein:
Described control module 1 is connected with described current function module 2, and described current function module 2 is connected with described current regulating module 3, and described current regulating module 3 is connected with described pwm signal generation module 8;
Described position sensing module 6 and described motor speed calculate module 5 and are connected, described motor speed calculates module 5 and is connected with described weak magnetic degree computing module 4, described weak magnetic degree computing module 4 is connected with described pwm signal generation module 8, described position sensing module 6 is connected with described change of current position computation module 7, described change of current position computation module 7 is connected with described pwm signal generation module 8, and described pwm signal generation module 8 is connected with described inverter circuit control module 9.
Permanent magnetic brushless control system of the present invention converts given current signal from the torque Setting signal of vehicle complete vehicle controller to by current regulating module 3, and current regulating module 3 is functions of torque set-point and motor speed; Given electric current and feedback current, by pwm signal generation module 8 output duty cycle signal, control as pulse-width modulation (PWM); Pwm signal generation module 8, according to the size of the change of current advance angle of duty ratio, current weak magnetics detect and current motor rotor-position state, is determined PWM order of occurrence and the moment occurs, thus realizing the weak magnetics detect of permanent magnetic brushless.Permanent magnetic brushless control system of the present invention has very high real-time and reliability, and control system can meet the requirement of system stable operation and dynamic adjustments very well, and system high efficiency rate district index exceedes desired indicator regulation.
Claims (1)
1. a permanent magnetic brushless control system, is characterized in that: comprise control module (1), current function module (2), current regulating module (3), weak magnetic degree computing module (4), motor speed calculating module (5), position sensing module (6), change of current position computation module (7), pwm signal generation module (8), inverter circuit control module (9); Wherein:
Described control module (1) is connected with described current function module (2), described current function module (2) is connected with described current regulating module (3), and described current regulating module (3) is connected with described pwm signal generation module (8);
Described position sensing module (6) and described motor speed calculate module (5) and are connected, described motor speed calculates module (5) and is connected with described weak magnetic degree computing module (4), described weak magnetic degree computing module (4) is connected with described pwm signal generation module (8), described position sensing module (6) is connected with described change of current position computation module (7), described change of current position computation module (7) is connected with described pwm signal generation module (8), described pwm signal generation module (8) is connected with described inverter circuit control module (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654158.6A CN104702160A (en) | 2013-12-06 | 2013-12-06 | Permanent-magnet brushless motor control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310654158.6A CN104702160A (en) | 2013-12-06 | 2013-12-06 | Permanent-magnet brushless motor control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702160A true CN104702160A (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310654158.6A Pending CN104702160A (en) | 2013-12-06 | 2013-12-06 | Permanent-magnet brushless motor control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104702160A (en) |
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2013
- 2013-12-06 CN CN201310654158.6A patent/CN104702160A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |