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

Fuzzy PID-based control method and system of six-phase induction motor

A technology of fuzzy control system and induction motor, applied in the direction of control system, vector control system, motor generator control, etc., it can solve the problem of inability to accurately control the six-phase induction motor, difficulty in meeting the non-linear and high-performance adjustment of the six-phase induction motor Speed ​​control requirements, harmonic components reduce the performance of the system motor, etc., to achieve the effects of small pulsation, speed and torque overshoot suppression, and small torque pulsation

Pending Publication Date: 2021-11-16
SHANGHAI MARITIME UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the dynamic characteristics of the six-phase induction motor drive system have characteristics such as nonlinearity and speed coupling, and the increase in the number of phases will cause the harmonic components in the motor rotor current to reduce the motor performance of the system, so the existing control methods are difficult to meet the six-phase induction motor. Phase induction motors require nonlinear, high-performance speed regulation control, so it is impossible to achieve precise control of six-phase induction motors

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
  • Fuzzy PID-based control method and system of six-phase induction motor
  • Fuzzy PID-based control method and system of six-phase induction motor
  • Fuzzy PID-based control method and system of six-phase induction motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] A method and system for controlling a six-phase induction motor based on fuzzy PID proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objects, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the ...

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 discloses a fuzzy PID-based control method and system of a six-phase induction motor. The method comprises the steps that: the current actual rotating speed of the six-phase induction motor is acquired; a difference value between a preset rotating speed of the six-phase induction motor and the current actual rotating speed is calculated; the difference value is input into a preset fuzzy PID control module, and a fuzzy control quantity is obtained through calculation of the fuzzy PID control module; and a control current is determined according to the fuzzy control quantity, and the six-phase induction motor is driven to output a new actual rotating speed based on the control current. The method and system can accelerate the parameter response speed, improve the system control precision, and finally achieve the improvement of the motor performance.

Description

technical field [0001] The invention relates to the technical field of AC induction motor control, in particular to a fuzzy PID-based six-phase induction motor control method and system. Background technique [0002] The six-phase induction motor speed control system has the advantages of low voltage to achieve high power, reduced torque ripple, improved system dynamic and static characteristics, improved reliability, and reduced rotor harmonic loss, making it widely used in electric vehicles and ship propulsion , aerospace and other fields of research and practice are increasing, with broad application prospects and practical value. [0003] The six-phase induction motor is a nonlinear and time-varying system, so when controlling the six-phase induction motor, the accuracy of the control is particularly sensitive to disturbances such as the number of motor phases, parameter changes, external forces and friction. In the prior art, a vector control algorithm is usually used ...

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 Applications(China)
IPC IPC(8): H02P6/10H02P6/28H02P21/00H02P21/14H02P21/22H02P27/08
CPCH02P6/10H02P6/28H02P21/001H02P21/14H02P21/22H02P27/08
Inventor 许晓彦杨新媛
Owner SHANGHAI MARITIME UNIVERSITY
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com