Harmonic closed-loop model predictive fault-tolerant control of a dual three-phase permanent magnet synchronous motor

被引：0
作者：
Cui J. [1 ]
Zhao W. [1 ]
Tao T. [1 ]
Huang L. [1 ]
Qiu X. [1 ]
机构：
[1] School of Electrical and information Engineering, Jiangsu University, Zhenjiang
来源：
Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica | 2023年 / 53卷 / 12期
关键词：
dual three-phase permanent magnet synchronous motor; extended state observer; fault-tolerant control; harmonic closed-loop control; model predictive control;
D O I：
10.1360/SST-2022-0319
中图分类号：
学科分类号：
摘要：
The harmonic plane is coupled with the fundamental plane for the open-circuit-fault dual three-phase permanent magnet synchronous motor (DTP-PMSM). The conventional closed-loop control in the harmonic plane caused controller conflicts owing to this coupling effect, which reduced the fault-tolerant performance of the DTP-PMSM. Thus, this paper proposes a harmonic closed-loop fault-tolerant control strategy of DTP-PMSM without controller conflict for single-phase open-circuit faults. First, a fault-tolerant prediction model is derived using a dimensionality-reduced decoupling matrix to overcome the coupling effect, and then, a set of virtual voltage vector control sets suitable for open-circuit faults is reconstructed. In addition, a harmonic voltage extended-state observer is designed to suppress the harmonic current caused by nonlinear factors. The duty cycle that needs to be compensated is quickly obtained via coordinate transformation and injected into the corrected voltage vector to complete the harmonic closed-loop control. The experimental results demonstrate the feasibility and effectiveness of the proposed method. © 2023 Chinese Academy of Sciences. All rights reserved.
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页码：2137 / 2150
页数：13
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