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Active Damping Control Strategy for Permanent Magnet Synchronous Motor without Electrolytic Capacitors
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Shihong XIE, Jinfan CHEN, Zhihao YANG, Jingwen CHEN
Journal of Power Supply | 2025, 23(5) : 216 - 226
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Journal of Power Supply | 2025, 23(5): 216-226
• Electric Machine System and Control •
Active Damping Control Strategy for Permanent Magnet Synchronous Motor without Electrolytic Capacitors
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Shihong XIE, Jinfan CHEN, Zhihao YANG, Jingwen CHEN
Affiliations
  • College of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
Published: 2025-09-30 doi: 10.13234/j.issn.2095-2805.2025.5.216
Outline
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Aimed at the shortcomings of large size, susceptibility to damage and high cost associated with electrolytic capacitors in permanent magnet synchronous motor (PMSM) drive systems, an active damping control strategy for PMSM without electrolytic capacitors is proposed by incorporating an RD damping circuit. First, the relationship between the selection of the film capacitor on the DC-bus side and the grid-side input power is analyzed, and the dynamic equations for the DC-bus voltage and capacitance are derived. Then, an active damping power decoupling method based on d-axis repetitive control is put forward to enhance the grid-side current power factor. Meanwhile, a control strategy based on q-axis power transformation is introduced to improve the motor's dynamic negative-impedance characteristics. The RD damping circuit is utilized to simplify control commands and absorb the overshoot voltage. Finally, simulation and experimental results indicate that with the use of small-capacity film capacitors, the active damping control effectively reduces the current distortion and suppresses the torque ripple.

Electrolytic capacitor-less  /  permanent magnet synchronous motor (PMSM)  /  active damping control  /  torque ripple suppression
谢仕宏, 陈劲帆, 杨智浩, 陈景文. 一种无电解电容永磁同步电机有源阻尼控制策略. 电源学报, 2025 , 23 (5) : 216 -226 . DOI: 10.13234/j.issn.2095-2805.2025.5.216
Shihong XIE, Jinfan CHEN, Zhihao YANG, Jingwen CHEN. Active Damping Control Strategy for Permanent Magnet Synchronous Motor without Electrolytic Capacitors[J]. Journal of Power Supply, 2025 , 23 (5) : 216 -226 . DOI: 10.13234/j.issn.2095-2805.2025.5.216
Funding
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  • Shaanxi Province Key R&D Plan(2023-YBGY-304)
  • Natural Science Foundation of Shaanxi University of Science and Technology(2020BJ-11)
Appendix
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Year 2025 volume 23 Issue 5
57
12
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.5.216
  • Receive Date：2024-05-20
  • Online Date：2026-10-26
  • Published：2025-09-30
Article Data
Affiliations
History
  • Received：2024-05-20
  • Revised：2024-07-31
  • Accepted：2024-08-13
Funding
Shaanxi Province Key R&D Plan(2023-YBGY-304)
Natural Science Foundation of Shaanxi University of Science and Technology(2020BJ-11)
Affiliations
    College of Electrical & Control Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
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Number of
species		 占总种数比例
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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