Affiliation:
1. Department of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Abstract
Background & Objective:
This document presents a dual sliding mode vector control
method to estimate speed and position of Permanent Magnet Linear Synchronous Motor
(PMLSM).
Methods:
Firstly, the motor simulation model is built based on the mathematical model of PMLSM.
For the sake of solving the problems of the jitter and position angle deviation in the traditional
SMO, the inverse hyperbolic tangent function is used and the software phase-locked loop algorithm
is introduced, and the gain of exponential approach rate is improved to change the real-time, so as to
eliminate the problems of high-frequency jitter and angle deviation. Secondly, global fractional order
integral sliding mode control (GFOISMC) is used to replace PI control to eliminate jitter and
improve the robustness to load disturbance. Finally, the dynamic performance of the system under
constant speed no-load and constant speed sudden load is simulated.
Results:
The simulation result proves a proposed dual sliding mode control strategy combining the
improved SMO and GFOISMC that can effectively reduce the jitter and improve robustness.
Conclusion:
In this paper, two sensorless control strategies are compared and their robust performance
is studied. The two control scheme is simulated in the MATLAB/Simulink environment.
Funder
National Natural Science Foundation of China
Natural Science Foundation of China’s Hebei Province
Young Top-notch Talents project of Education Department of China’s Hebei Province
post graduate innovation fund of Shijiazhuang Tiedao University
Publisher
Bentham Science Publishers Ltd.
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials