Improved Deadbeat Predictive Current Control of PMSM Drives With Repetitive Control-Based Disturbance Correction Observer

In order to achieve high robustness and high-precision current control, this article proposes a disturbance correction observer based on repetitive control (RDCO) for deadbeat predictive current control (DPCC-RDCO) scheme of permanent magnet synchronous motor (PMSM). In this technology, the disturba...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2025-01, Vol.40 (1), p.801-812
Main Authors: Cao, Haiyang, Deng, Yongting, Liu, Jing, Zuo, Yun, Liu, Xiufeng, Wang, Huanzhi, Lee, Christopher H. T.
Format: Article
Language:English
Subjects:
Accuracy
Current control
Deadbeat predictive current control (DPCC)
Delays
disturbance correction observer
Estimation
Harmonic analysis
Observers
permanent magnet synchronous motor (PMSM)
Predictive models
repetitive control
Robustness
Vectors
Voltage control
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Summary:In order to achieve high robustness and high-precision current control, this article proposes a disturbance correction observer based on repetitive control (RDCO) for deadbeat predictive current control (DPCC-RDCO) scheme of permanent magnet synchronous motor (PMSM). In this technology, the disturbance correction based on the disturbance estimation of the extended state observer is presented to enhance the observer robustness. Meanwhile, a repetitive controller is embedded into the disturbance correction term to improve the estimation accuracy of periodic harmonics. Furthermore, the estimation performance, parameter characteristics, and convergence stability of the proposed observer are theoretically analyzed. With the current disturbance and current prediction accurately estimated by the RDCO, the improved DPCC scheme based on the established predictive current model is developed. Compared with the basic schemes, the proposed DPCC-RDCO can effectively suppress current deviation, and achieve excellent dynamic tracking and robust performance. Finally, the effectiveness and superiority of the studied method are verified experimentally in PMSM drives under different operating conditions.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2024.3482315