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

Permanent magnet synchronous motor parameter identification method based on improved salp swarm algorithm

A permanent magnet synchronous motor and salp group technology, which is applied in motor control, generator control, motor generator control, etc., can solve the problems of lack of parameter identification of permanent magnet synchronous motors, easy to fall into local optimum, slow convergence speed, etc.

Active Publication Date: 2020-10-23
HUNAN UNIV OF SCI & TECH
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mirjalili proposed the salp group algorithm in 2017. This algorithm has advantages in solving most optimization problems, but it still has the disadvantages of slow convergence and easy to fall into local optimum, especially when solving compound problems. Therefore, for permanent magnet Synchronous motor parameter identification is still lacking

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
  • Permanent magnet synchronous motor parameter identification method based on improved salp swarm algorithm
  • Permanent magnet synchronous motor parameter identification method based on improved salp swarm algorithm
  • Permanent magnet synchronous motor parameter identification method based on improved salp swarm algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0065] figure 1 For the parameter identification model of permanent magnet synchronous motor using the improved salp swarm algorithm, the left half collects the required data, and the right half is the identification module.

[0066] figure 2 It is the schematic diagram of parameter identification of permanent magnet synchronous motor using improved salp group algorithm. The motor identification parameters obtained by the improved salp group optimization algorithm ar...

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 permanent magnet synchronous motor parameter identification method based on an improved salp swarm algorithm, and the method comprises the following steps: initializing related parameters, and randomly initializing each group of parameter vectors in a parameter identification range; calculating the identification degree of each group of parameter vectors according to thefitness function, and defining the parameter vector with the highest identification degree as an optimal parameter F; updating the first group of parameters according to a formula; updating the following parameters through a normal cloud model formula; correcting the parameter vectors exceeding the identification range; and recalculating the corresponding identification degree according to the current parameter vector, and updating the optimal parameter F. According to the method, the dq-axis voltage, current and angular velocity of the permanent magnet synchronous motor are obtained through measurement, and parameters of the permanent magnet synchronous motor can be quickly, stably and accurately identified by utilizing an improved salp swarm algorithm.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to a method for identifying parameters of permanent magnet synchronous motors based on an improved salp swarm algorithm. Background technique [0002] Due to the advantages of high power density and fast dynamic response, permanent magnet synchronous motors have been widely used in servo systems and other industrial fields. The realization of a high-performance permanent magnet synchronous motor control system depends on accurate motor parameters, but because motor parameters such as stator resistance, inductance, and permanent magnet flux linkage are easily affected by factors such as temperature, stator current, and magnetic saturation, the performance of motor control is degraded , the reliability and dynamic and static performance of the system are reduced. Therefore, in order to obtain a high-performance permanent magnet synchronous motor control sy...

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
IPC IPC(8): H02P21/14H02P6/34G06F17/15G06F17/11G06N3/00
CPCH02P21/14H02P6/34G06F17/15G06F17/11G06N3/006H02P2207/05
Inventor 张铸张仕杰饶盛华王静袁
Owner HUNAN UNIV OF SCI & TECH
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