Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A permanent magnet synchronous motor torque output control system

A permanent magnet synchronous motor and control system technology, which is applied in the control system, vector control system, motor generator control, etc., can solve the problems of motor inductance, motor output torque control deviation, etc., solve the problem of torque accuracy, realize convenient and practical, Avoid complex process effects

Active Publication Date: 2016-06-15
SHENZHEN HANGSHENG ELECTRONICS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the existing permanent magnet synchronous motor torque control system is difficult to accurately calibrate and identify the motor inductance, the control of the motor output torque will have a large deviation, the present invention proposes a permanent magnet synchronous motor torque output control system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A permanent magnet synchronous motor torque output control system
  • A permanent magnet synchronous motor torque output control system
  • A permanent magnet synchronous motor torque output control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0070] Such as figure 1 As shown, the permanent magnet synchronous motor torque output control system of the embodiment of the present invention includes a SVPWM modulation module, an inverter, a permanent magnet synchronous motor 01, a 3 / 2 change module 02, a torque calculation module 03, a demand current calculation module 04, Torque comparator 05 , torque current compensation integral adjustment module 06 , torque current adder 07 , magnetic flux current calculation module 08 , torque current comparator 09 , magnetic flux current comparator 10 and current PI adjustment module 11 .

[0071] The modulation module, the inverter and the permanent magnet synchronous motor 01 are electrically connected in sequence, and the three-phase output of the permanent magnet synchronous motor 01 is respectively connected to the 3 / 2 conversion module 02 .

[...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a torque output control system of a permanent magnet synchronous motor. The system comprises a modulation module, an inverter and the permanent magnet synchronous motor, wherein the modulation module, the inverter and the permanent magnet synchronous motor are electrically connected in sequence. The system further comprises a 3 / 2 conversion module, a torque calculation module, a required current calculation module, a torque comparator, a torque current compensation integral adjustment module, a torque current adder, a magnetic flow current calculation module, a torque current comparator, a magnetic flow current comparator and a current PI regulating module. On the basis of controlling torque output, and by using actual output torque as a target, the torque output control system is used for calculating torque deviation and correcting the matching relation between magnetic flow current and torque current according to the torque deviation so as to enable motor torque output to track target torque.

Description

technical field [0001] The invention relates to a torque output control system of a permanent magnet synchronous motor. Background technique [0002] In recent years, due to the advantages of fast torque response and high power density, permanent magnet synchronous motors have been widely used in pure electric vehicles and hybrid vehicles, and the drive control of motors has become a research hotspot. In new energy vehicles, the torque control method is mostly used for motor drive, and the motor controller responds to the torque command of the vehicle controller to drive the motor to perform normal control of the vehicle. Therefore, higher requirements are put forward for the accuracy of motor control torque. However, in actual control, due to the complex saturation characteristics of the motor inductance, it is difficult to accurately calibrate and identify, which will cause deviations in torque control, thereby affecting the control performance of the vehicle. Contents ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/20
Inventor 郑春阳李建军陈林
Owner SHENZHEN HANGSHENG ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products