1. Single-Current Feedback Active Damping Control for High-Speed PMSM With LLCL Filter
- Author
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Yao, Yu, Zhou, Jiaxin, Peng, Fei, and Huang, Yunkai
- Abstract
As it is well recognized, LLCL filter effectively reduces the total inductance of the sinewave filter. In this article, a unified single-current feedback active damping method is proposed for LLCL-equipped high-speed permanent magnet synchronous motor. With the unified discrete model, this method can be utilized in both inverter current feedback-only and motor current feedback-only systems. The coefficient selection and simple digital implementation methods are developed to design the damping system efficiently. The proposed method performs well even with mismatched parameters, such as a
15% error in filter parameters and a$\pm$ 40% error in motor inductance. In addition, the study confirms the advantages of LLCL filter over LCL filter in terms of total inductance in high-speed motor drives. Finally, the effectiveness of the proposed method is validated by experimental results of a 12 kr/min(1000 Hz) HSPMSM.$\pm$ - Published
- 2024
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