Research of open-circuit fault simulation and diagnosis for wind power converter

Wei Zhang; Qihui Ling; Qiancheng Zhao; Xian Wang; Bing Zeng

doi:10.1117/12.2548535

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13 November 2019 Research of open-circuit fault simulation and diagnosis for wind power converter

Wei Zhang, Qihui Ling, Qiancheng Zhao, Xian Wang, Bing Zeng

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Proceedings Volume 11343, Ninth International Symposium on Precision Mechanical Measurements; 113430W (2019) https://doi.org/10.1117/12.2548535
Event: International Symposium on Precision Mechanical Measurements 2019, 2019, Chongqing, China

Abstract

In this paper, the converter of a 2MW direct-driven permanent-magnet wind turbine is researched for exactly locating the open-circuit fault of wind power converter. The structure and fault characteristics of the converter is analysed, and open-circuit fault location of the converter is implemented by defining a fault feature variable based on grid-side current signal. Based on Matlab/Simulink platform, the fault simulation model of wind power converter is built, the waveforms changes of grid-side current and fault feature variables are analysed under different fault conditions. The simulation results show the feasibility and effectiveness of the model. It provides a fast-position diagnosis method for the open-circuit fault of wind power converter, and has the certain application value for project.

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Wei Zhang, Qihui Ling, Qiancheng Zhao, Xian Wang, and Bing Zeng "Research of open-circuit fault simulation and diagnosis for wind power converter", Proc. SPIE 11343, Ninth International Symposium on Precision Mechanical Measurements, 113430W (13 November 2019); https://doi.org/10.1117/12.2548535

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