风电场35kV母线单相接地引起三相短路故障分析

摘要

本文介绍了某风电场发生的一起由单相接地引起的35kV母线三相短路故障。本文在详细分析故障发生和发展过程的基础上，指出了风电场在运行方式安排和保护定值方面存在的不足，以及消弧装置在故障中的实际表现与原始设计之间的偏差。同时，本文还结合风电场的实际情况给出了应对措施和改进建议。%is paper described the 35kV busbar three-phase short-circuit fault which caused by the single-phase ground in a wind farm. Based on detailed analysis of development process of the failure, this paper pointed out the lack of operation mode arrangements and the protection setting, the deviation between the actual performance and the original design of arc suppression device. Meanwhile, the paper gave responses and improvement suggestions combined with the wind farm's actual situation.