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J. Hefei Univ. Tech. (Nat. Sci.)

合肥工业大学学报(自然科学版)

JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE)

Competent Authorities: Ministry of Education of the People's Republic of China

Sponsor by: Hefei University of Technology

ISSN 1000-1646, CN 34-1001/N

Harmonic suppression strategy of permanent magnet synchronous motor considering iron loss

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考虑铁损的永磁同步电机谐波抑制策略

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Feb.2023, Vol.46 No.2: 145-151

DOI: 10.3969/j.issn.1003-5060.2023.02.001

Authors

LIN Juguang, CHEN Cong, WANG Dengfeng

(School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: Aiming at the problem of torque ripple caused by harmonic current in permanent magnet synchronous motor (PMSM), a harmonic suppression algorithm considering iron loss is proposed. The equivalent circuit model considering iron loss resistance for salient pole PMSM was established, the expressions of state space equation and voltage equation were derived, and then a corrective feedback loop was added to the model reference adaptive system (MRAS) to identify the iron loss resistance. Finally, the identified iron loss resistance was taken into the harmonic suppression algorithm to eliminate the influence of the iron loss on the control system and enhance the effect of harmonic suppression. Simulation and experimental results show that MRAS with a corrective feedback loop can quickly and accurately identify the iron loss resistance, greatly reducing the high harmonic content.

Keywords: permanent magnet synchronous motor(PMSM); iron loss resistance; model reference adaptive system(MRAS); torque ripple; current harmonic suppression

作者信息

林巨广，陈聪，王登峰

（合肥工业大学机械工程学院，安徽合肥230009）

摘要和关键词

摘要: 针对永磁同步电机(permanent magnet synchronous motor, PMSM)中谐波电流引起的转矩脉动问题,文章提出一种考虑铁损的谐波抑制算法。首先建立考虑铁损电阻的凸极式PMSM等效电路模型,得到状态空间方程以及电压方程表达式;然后引入模型参考自适应系统(model reference adaptive system, MRAS)来辨识铁损电阻,并在此基础上加入反馈校正环节;最后将辨识得到的铁损电阻引入到谐波抑制算法中,以抑制铁损对控制系统的影响,增强谐波抑制效果。仿真和实验结果表明,加入反馈校正环节的MRAS可以快速准确地辨识铁损阻值,所提算法可以有效地减少谐波含量。

关键词: 永磁同步电机(PMSM)；铁损电阻；模型参考自适应系统(MRAS)；转矩脉动；电流谐波抑制

Funding

安徽省科技重大专项资助项目（17030901062）

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