Open AccessResearch of Active Disturbance Rejection Controller Design for PMSM Servo System
Author(s) -
Hao Yan,
Li Jiapeng,
Li Leiming,
Jian Ma
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1894/1/012039
Subject(s) - control theory (sociology) , active disturbance rejection control , feed forward , controller (irrigation) , tracking error , state observer , computer science , servomechanism , current loop , tracking (education) , disturbance (geology) , control engineering , engineering , current (fluid) , control (management) , nonlinear system , artificial intelligence , psychology , paleontology , agronomy , pedagogy , physics , electrical engineering , quantum mechanics , biology
In the permanent magnet synchronous motor (PMSM) speed control system, an improved active disturbance rejection control strategy with higher tracking accuracy for time-varying input is proposed. The traditional active disturbance rejection controller is mainly used for fast and static-free tracking of step signals, but there is a large tracking error for time-varying signals, which limits the application of active disturbance rejection controller. In this paper, the theoretical analysis of the existence of steady-state error is carried out, and then an improved speed active disturbance rejection controller (ADRC) with derivative feedforward and parallel linear extended state observer(P-LESO) is designed to reduce the tracking error of the system. In order to observe and compensate the reverse electromotive force in real time and reduce the current following error, a current loop linear active disturbance rejection controller is designed. By constructing Simulink simulation model for verification, the control system not only improves the tracking accuracy of PMSM for time-varying input, but also has a good dynamic performance for step input.