Adaptive interval type-2 fuzzy sliding mode control for permanent magnet linear motor
SUN Yi-biao
WANG Ya-peng
LIU Chun-fang
Abstract：Aiming at the problem that the performance of permanent magnet linear synchronous motor servo system is weakened due to the parameter variation and load disturbance of the system, an adaptive interval type-2 fuzzy sliding mode control method, where the end effect and the existence of friction were taken into consideration, was proposed. An adaptive interval type-2 logic system was adopted to approximate the equivalent control part of sliding mode control, and thus, the traditional type-1 fuzzy logic system was extended to the interval type-2 fuzzy logic system. In addition, the processing ability of the system was improved when the system was confronted with the parameter variation and uncertain disturbance. Based on the Lyapunov function, the adaptive law of switch item gain adjustment was designed to guarantee the stability of the system. The simulated results indicate that the proposed method can improve the robustness of the system and effectively weaken the chattering of the system.
Keywords：permanent magnet linear synchronous motorsliding mode controlinterval type-2 fuzzy logic systemtype-1 fuzzy logic systemadaptive lawLyapunov functionrobustnesschattering
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 601-606 )