Check patentability & draft patents in minutes with Patsnap Eureka AI!

Induction motor model prediction current control method of improved integral sliding mode

An induction motor, integral sliding mode technology, applied in motor generator control, electronic commutation motor control, control system and other directions, can solve problems such as motor parameter mismatch

Active Publication Date: 2021-04-23
XIAN UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an improved integral sliding mode induction motor model predictive current control method, which solves the problem that the current induction motor does not match the motor parameters when it is running under different working conditions

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
  • Induction motor model prediction current control method of improved integral sliding mode
  • Induction motor model prediction current control method of improved integral sliding mode
  • Induction motor model prediction current control method of improved integral sliding mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] The present invention is an improved integral sliding mode induction motor model predictive current control method, adopting the induction motor model predictive current control system based on integral sliding mode, such as figure 1 Shown: mainly includes two links. One is the speed value ω obtained by the encoder r with given speed Do differential input to the speed regulator PI, the output of the speed regulator is used as the given current phase current i a i b i c After being measured by the current sensor, the stator current component i in the two-phase stationary coordinate system is obtained by Clarke transformation α i β , i α i β Then the stator current component i in the two-phase rotating coordinate system is obtained by Park transformation d i q is the integral sliding mode input quantity, and the given curren...

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 an induction motor model prediction current control method based on an improved integral sliding mode. The method specifically comprises the following steps: 1, obtaining an induction motor stator current differential equation under a d-q coordinate system, and obtaining a corresponding voltage equation according to the d-q axis stator current differential equation; 2, based on the voltage equation obtained in step 1, defining each parameter error and embedding an error vector of a given voltage; 3, determining the composition of an integral sliding mode surface based on a voltage error vector formula; and 4, regarding the reference voltage vector as the sum of the voltage component and the disturbance component obtained by the traditional model, and further reconstructing a cost function as the absolute value of the voltage vector error. The problem that motor parameters are not matched when an existing induction motor operates under different working conditions is solved.

Description

technical field [0001] The invention belongs to the technical field of induction motor model predictive control and relates to an induction motor model predictive current control method with improved integral sliding mode. Background technique [0002] Induction motors are widely used in agricultural production, industrial production, transportation and other industries due to their simple structure, easy manufacture, low price, reliable operation, and durability. In order to make the motor meet the technical requirements of drive control technology with fast dynamic response, accurate speed tracking and excellent stability, the vector control technology of rotor field orientation is applied. However, in recent years, the rapid development of industrial automation has put forward new requirements for drive control technology, with the aim of showing the development trend of "faster, smaller, and smarter" for the system. The dynamic response speed of the current loop is the ...

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): H02P21/00H02P21/14H02P21/22
CPCH02P21/0007H02P21/14H02P21/22
Inventor 尹忠刚侯倩茹张延庆张瑞峰
Owner XIAN UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com