Modelling of high frequency bearing voltage for dual-winding permanent magnet synchronous generators

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-12-07 DOI:10.1049/elp2.12399

Zhihao Li, Ruifang Liu, Liangliang Zhang, Weili Li, Shulin Li, Xin Huang

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Abstract

The modelling and analysis of high-frequency bearing voltage are of great significance to the assessment and mitigation of the electrical erosion risk in wind power systems. However, the dual-winding permanent magnet synchronous generator (DW-PMSG), as one of the mainstream models in wind power industry, has not been specifically analysed for its bearing voltage modelling method in the existing research. The high frequency common mode equivalent circuit model of DW-PMSG is established, and the effect of parasitic parameters between two sets of winding on bearing voltage is analysed. A model parameters extraction method based on differential evolution algorithm is proposed, and the range of parameters is estimated by finite element simulation and test results, which improves the search efficiency and solution accuracy. The accuracy of the proposed model is verified by the comparison of simulation and experimental results. On this basis, it is possible to conduct more in-depth research on the bearing voltage and bearing currents of DW-PMSG, and provide theoretical basis and simulation means for the design of suppression schemes.

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双绕组永磁同步发电机高频轴承电压建模

高频轴承电压的建模和分析对风电系统电侵蚀风险的评估和降低具有重要意义。然而，双绕组永磁同步发电机(DW - PMSG)作为风电行业的主流机型之一，在现有的研究中并没有对其轴承电压建模方法进行专门的分析。建立了DW - PMSG高频共模等效电路模型，分析了两组绕组间寄生参数对轴承电压的影响。提出了一种基于差分进化算法的模型参数提取方法，并通过有限元仿真和试验结果估计出参数取值范围，提高了搜索效率和求解精度。通过仿真与实验结果的比较，验证了所提模型的准确性。在此基础上，可以对DW - PMSG的轴承电压和轴承电流进行更深入的研究，为抑制方案的设计提供理论依据和仿真手段。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.