Speed Control of PMSM Based on an Optimized ADRC Controller

Author:

Meng YiBo12ORCID,Liu BingYou123ORCID,Wang LiChao12

Affiliation:

1. Anhui Polytechnic University, College of Electrical Engineering, Wuhu 241000, China

2. Key Laboratory of Advanced Perception and Intelligent Control of High-End Equipment, Ministry of Education, Wuhu 241000, China

3. S. M. Wu Manufacturing Research Center, University of Michigan, Ann Arbor, MI 48105, USA

Abstract

Permanent-magnet synchronous motor (PMSM) is a nonlinear, multivariate, strongly coupled system with uncertain external interference. A general control method cannot meet system requirements. This study proposes an optimal control strategy based on active disturbance rejection control (ADRC) to achieve high-precision control of PMSM. First, interpolation fitting is used to construct a nonlinear function with improved continuity and derivative near the origin and segment points. Second, various components of active disturbance rejection control are constructed based on the new nonlinear function, which mainly improves the extended state observer and nonlinear state error feedback. Simulation results show that under similar parameters, the improved active disturbance rejection control has smaller overshoot, faster tracking capacity, and stronger anti-interference capability compared with traditional active disturbance rejection control. Finally, the optimized active disturbance rejection control is used in the motion control system of PMSM. Experimental results show that the proposed optimal control strategy is simple and has good control performance.

Funder

Natural Science Foundation of Anhui Province

Publisher

Hindawi Limited

Subject

General Engineering,General Mathematics

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