Current optimization-based control of dual three-phase PMSM for low-frequency temperature swing reduction

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外文摘要：In this paper,a control scheme based on current optimization is proposed for dual three-phase per-manent-magnet synchronous motor(DTP-PMSM)drive to reduce the low-frequency temperature swing.The reduction of temperature swing can be equivalent to reducing maximum instantaneous phase copper loss in this paper.First,a two-level optimization aiming at minimizing maximum instantaneous phase copper loss at each electrical angle is proposed.Then,the optimization is transformed to a single-level optimization by introducing the auxiliary variable for easy solving.Considering that single-objective optimization trades a great total copper loss for a small reduction of maximum phase cop-per loss,the optimization considering both instantaneous total copper loss and maximum phase copper loss is proposed,which has the same performance of temperature swing reduction but with lower total loss.In this way,the proposed control scheme can reduce maximum junction temperature by 11％.Both simulation and experimental results are presented to prove the effectiveness and superiority of the proposed control scheme for low-frequency temperature swing reduction.

外文关键词：

Dual three-phase PMSMLow-frequency temperature swingCopper lossCurrent optimizationConnected neutral points

作者：

Linlin Lu、Xueqing Wang、Luhan Jin、Qiong Liu、Yun Zhang、Yao Mao

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作者单位：

Key Laboratory of Optical Engineering,Chinese Academy of Sciences,Chengdu 610209,China

Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China

University of Chinese Academy of Sciences,Beijing 100049,China

College of Electrical Engineering,Sichuan University,Chengdu 610065,China

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基金：

国家自然科学基金

项目编号：

62271109

出版年：

2024

DOI：

10.1016/j.dt.2023.07.002

防务技术

中国兵工学会

防务技术

CSTPCD

影响因子：0.358

ISSN：2214-9147

年,卷(期)：2024.34(4)