Open AccessDisturbance attenuation and response time improvement of permanent magnet synchronous linear motor by using robust predictive resonant current control
Author(s) -
Wang Zhen,
Zhao Jiwen
Publication year - 2021
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/elp2.12003
Subject(s) - control theory (sociology) , attenuation , linear motor , model predictive control , current (fluid) , synchronous motor , magnet , permanent magnet synchronous motor , disturbance (geology) , control (management) , computer science , physics , engineering , electrical engineering , optics , biology , paleontology , artificial intelligence
Abstract This paper proposes a robust predictive resonant current control to improve the dynamic and anti‐disturbance performance of the permanent magnet synchronous linear motor (PMSLM). First, the disturbance caused by parameters variation is considered in modelling PMSLM. Based on this model, a robust predictive current control (RPCC) with mover current and disturbance estimation is derived, which is used to simultaneously overcome the time‐delay and estimate the parameters disturbance. Then, in order to further suppress periodic disturbance caused by voltage source inverter non‐linearity, an appropriate resonant controller is embedded in the RPCC. Finally, a precise test platform based on semi‐physical system AD5435 is established, and experimental results show the validity of the proposed approach.