Open AccessNon‐cascade backstepping sliding mode control with three‐order extended state observer for PMSM drive
Author(s) -
Wang Yao,
Yu Hai Tao,
Feng Ning Jun,
Wang Yu Chen
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.0819
Subject(s) - control theory (sociology) , backstepping , feed forward , cascade , state observer , current loop , sliding mode control , controller (irrigation) , computer science , electronic speed control , control engineering , engineering , current (fluid) , control (management) , adaptive control , nonlinear system , physics , agronomy , electrical engineering , artificial intelligence , chemical engineering , quantum mechanics , biology
To simplify the control structure and increase the anti‐disturbance performance, a non‐cascade control method for a permanent magnet synchronous motor drive system is studied, which regulates the speed and current in one loop. The proposed control scheme is a composite control strategy including speed‐current single‐loop feedback control and feedforward compensation based on disturbance estimation. A feedback controller based on backstepping sliding mode control is proposed to realise speed‐current single‐loop. Disturbance estimated by a third‐order extended state observer is used in feedforward compensation. Rigorous analysis of stability is conducted to validate the convergence of the control scheme. Simulation and experimental results demonstrate that the proposed control scheme achieves a better speed tracking performance and disturbance rejection property over proportional–integral–derivative and sliding mode control.