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

Configurable brushless direct current motor speed regulation fuzzy PID controller

A technology of fuzzy controllers and brushed DC motors, applied to electric controllers, controllers with specific characteristics, etc., to achieve the effects of stable control state, suppression of nonlinearity, and ideal control effect

Inactive Publication Date: 2019-06-14
CHANGCHUN UNIV OF TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a large number of experiments, it is found that fuzzy control sometimes has deficiencies in online regulation and other aspects.

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
  • Configurable brushless direct current motor speed regulation fuzzy PID controller
  • Configurable brushless direct current motor speed regulation fuzzy PID controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the technical features and combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.

[0025] Such as figure 1 As shown, the specific architecture of a configurable brushless DC motor speed regulation fuzzy PID controller proposed by the present invention includes a two-stage fuzzy PI controller, a PD controller, a traditional PID controller, a control switch, and a brushless DC motor. The control method is as follows: first, compare and calculate the actual output speed Wm of the motor with the given reference speed Wref, and obtain the final speed error E and the error change rate EC, fuzzify the two errors in the fuzzy controller 1, and pass The E and EC after fuzzification are handed over t...

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 designs a configurable brushless direct current motor speed regulation fuzzy PID controller, which is used for improving the control performance of a traditional fuzzy PID. The method specifically involves a PID controller in a steady state and a PI and PD type configurable two-stage fuzzy logic controller (CFLC) in a transient state; and a switching function is introduced for switching between the PID and the CFLC based on a speed error, thereby ensuring expected control responses under different conditions. The fuzzy control adopted by the method does not need to depend on an accurate mathematical model of a controlled object and enables the controlled object to be more stable in a control state, and the non-linear condition of the controlled object can be effectively inhibited; in the steady state control process, the error variation is small, and the traditional PID control enables a system to keep stable; and in the transient state control process, the error variation is large, and the configurable two-stage fuzzy PI+PD control can continuously monitor changes of parameters and real-time feedback of the parameters, so that the control effect is idealized.

Description

technical field [0001] The invention belongs to the technical field of motor speed regulation, in particular to a configurable brushless DC motor speed regulation fuzzy PID controller. Background technique [0002] In today's era, the use of electric energy has become very common. As a device that converts electric energy into mechanical energy, the motor has been widely used and developed rapidly along with the widespread use of electric energy. Whether it is petrochemical, transportation, industrial production and other departments. The motor is not used to provide power, and the motor affects our daily life all the time. At present, the application of brushless DC motors is the most popular. Because of its high power density, small size, good speed regulation performance and simple structure, brushless DC motors are widely used in response speed, operating efficiency, and stability. . With the progress of society and the development of science and technology, people's r...

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): G05B11/42
Inventor 胡黄水王婷婷杨兴旺
Owner CHANGCHUN UNIV OF 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