An Improved Extended State Observer-Based Composite Nonlinear Control for Permanent Magnet Synchronous Motor Speed Regulation Systems

Zhiyuan Che, Haitao Yu (), Saleh Mobayen, Murad Ali, Chunyu Yang and Andrzej Bartoszewicz
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Zhiyuan Che: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Haitao Yu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Saleh Mobayen: Multidisciplinary Center for Infrastructure Engineering, Shenyang University of Technology, Shenyang 110870, China
Murad Ali: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Chunyu Yang: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
Andrzej Bartoszewicz: Institute of Automatic Control, Lodz University of Technology, 18 Stefanowskiego St., 90-537 Lodz, Poland

Energies, 2022, vol. 15, issue 15, 1-14

Abstract: This paper addresses the problems of an improved extended state observer (ESO)-based composite nonlinear control for the permanent magnet synchronous motor (PMSM) speed regulation systems, which is primarily constituted by a linear ESO-based feedforward compensation and nonlinear proportional feedback (NPF) control law. Firstly, by taking the parametric perturbations and external disturbances into account, a novel linear ESO is designed and analyzed to estimate the lumped disturbance, such that the system anti-disturbance performance is preserved. Meanwhile, the estimation of system state is also performed. Then, an optimal control synthesis function-based tracking differentiator (TD) is developed to arrange the transition dynamic for the reference velocity value, while its high quality differential signal is facilitated. Furthermore, an adaptive proportional control law is proposed, resulting in the eventual composite nonlinear strategy by incorporating the estimate values into the designed NPF controller. Finally, a PMSM servo system is studied to demonstrate the advantages and effectiveness of the proposed approaches.

Keywords: permanent magnet synchronous motors (PMSMs); composite nonlinear control; extended state observer (ESO); tracking differentiator (TD); nonlinear proportional feedback (NPF); speed regulation systems (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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