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Position-sensorless ADRC Strategy for Permanent Magnet Synchronous Motor Based on Nonlinear Flux Observer
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Kun ZHANG1, Hang ZHANG  Member, CPSS2, Zhe CHEN3, Hui MA1, Yukun LEI  Student Member, CPSS2, Guangzhao LUO3
Journal of Power Supply | 2026, 24(6) : 319 - 327
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Journal of Power Supply | 2026, 24(6): 319-327
• Motor Drives and Control •
Position-sensorless ADRC Strategy for Permanent Magnet Synchronous Motor Based on Nonlinear Flux Observer
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Kun ZHANG1, Hang ZHANG  Member, CPSS2, Zhe CHEN3, Hui MA1, Yukun LEI  Student Member, CPSS2, Guangzhao LUO3
Affiliations
  • 1.Nanjing Engineering Institute of Aircraft Systems, AVIC/Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration, Nanjing 211106, China
  • 2.Xi’an University of Technology, Xi’an 710048, China
  • 3.Northwestern Polytechnical University, Xi’an 710072, China
Published: 2026-06-30 doi: 10.13234/j.issn.2095-2805.2026.6.319
Outline
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To address the problems of DC bias and integral drift resulting from the pure integral link in traditional flux observers, a nonlinear flux observer is developed based on the mathematical model of a surface-mounted permanent magnet synchronous motor under the stationary coordinate system. Then, the information about the rotor position and speed is extracted using the phase-locked loop technology. In consideration of the working condition of the aviation pump load, the disturbances caused by nonlinear factors such as frequent changes in load torque and the dead time of an inverter will impact the speed and current regulation performance of position-sensorless control. This further results in increases in the magnetic field orientation error and rotor position estimation error. By combining with the linear active disturbance rejection control technology, a position-sensorless active disturbance rejection control strategy based on a nonlinear flux observer is proposed, which enhances the anti-disturbance capability of the position-sensorless closed-loop system. The effectiveness of the proposed position-sensorless control strategy was verified through a comparison between the simulation and experimental results.

Surface-mounted permanent magnet synchronous motor  /  position-sensorless control  /  nonlinear flux observer  /  active disturbance rejection control
张坤, 张航中国电源学会会员, 陈哲, 马辉, 雷昱坤中国电源学会学生会员, 骆光照. 基于非线性磁链观测器的永磁同步电机无位置传感器自抗扰控制策略. 电源学报, 2026 , 24 (6) : 319 -327 . DOI: 10.13234/j.issn.2095-2805.2026.6.319
Kun ZHANG, Hang ZHANG, Zhe CHEN, Hui MA, Yukun LEI, Guangzhao LUO. Position-sensorless ADRC Strategy for Permanent Magnet Synchronous Motor Based on Nonlinear Flux Observer[J]. Journal of Power Supply, 2026 , 24 (6) : 319 -327 . DOI: 10.13234/j.issn.2095-2805.2026.6.319
Funding
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  • National Natural Science Foundation of China(52177059; 52007151)
  • Key Research and Development Plan of Shaanxi Province(2023-YBGY-401)
Appendix
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Year 2026 volume 24 Issue 6
36
4
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.6.319
  • Receive Date：2024-06-26
  • Online Date：2026-10-29
  • Published：2026-06-30
Article Data
Affiliations
History
  • Received：2024-06-26
  • Revised：2024-08-01
  • Accepted：2024-08-13
Funding
National Natural Science Foundation of China(52177059; 52007151)
Key Research and Development Plan of Shaanxi Province(2023-YBGY-401)
Affiliations
    1.Nanjing Engineering Institute of Aircraft Systems, AVIC/Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration, Nanjing 211106, China
    2.Xi’an University of Technology, Xi’an 710048, China
    3.Northwestern Polytechnical University, Xi’an 710072, China
References
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https://castjournals.cast.org.cn/joweb/dyxb/EN/10.13234/j.issn.2095-2805.2026.6.319
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