Robust Wide-Speed-Range Control of IPMSM with Multi-Axis Coordinated Extended State Observer for Dynamic Performance Enhancement

Wentao Zhang, Yanchen Zhai (), Pengcheng Zhu and Yiwei Liu
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Wentao Zhang: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Yanchen Zhai: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Pengcheng Zhu: School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
Yiwei Liu: School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

Energies, 2025, vol. 18, issue 11, 1-23

Abstract: Wide-speed regulation control strategies for Interior Permanent Magnet Synchronous Motors (IPMSMs) are widely applied in industrial fields. However, traditional algorithms are prone to being affected by motor parameter mismatches, sensor sampling errors, and other disturbances under complex operating conditions, leading to insufficient robustness. In order to enhance dynamic performance while simultaneously ensuring robustness, we analyzed the limitations of traditional control strategies and, based on this, proposed an improved control framework. A Multi-Axis Coordinated Extended State Observer(MCESO)-based robust control framework was developed for full-speed domain operation, which enhances disturbance rejection capability against parameter uncertainties and abrupt load changes through hierarchical disturbance estimation. Subsequently, the effectiveness and stability of the proposed method were verified through theoretical analysis and simulation studies. Compared with traditional control strategies, this method can effectively observe and compensate for a series of complex issues such as nonlinear disturbances during operation without requiring additional hardware support. Finally, extensive experimental tests were carried out on a 500 W IPMSM dual-motor drive platform. The experimental results demonstrated that, even under harsh operating conditions, the proposed scheme can effectively suppress torque ripple and significantly reduce current harmonics.

Keywords: robustness control; dynamic performance; Multi-Axis Coordinated Extended State Observer (MCESO); Interior Permanent Magnet Synchronous Motors (IPMSMs); full-speed domain operation (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: 2025
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