动态补偿消弧线圈在大型风电场灭弧中的应用

介绍了大型风电场的单相接地故障特性和调匝式、偏磁式、可控硅式消弧线圈的工作原理，对比分析了动态补偿技术的优势以及在大型风电场发生单相接地故障灭弧中的应用。结合风电设计和运行经验，对升压站电气主接线和设备选型进行了优化，采用三绕组变压器、35 kV中性点经消弧线圈接地方案，经现场验证此方案有利于风电场的安全稳定运行。

Application of Dynamic Compensation Arc Suppression Coil for Arc Suppression in Large-scale Wind Farm

The characteristics of single phase grounding fault in large-scale wind farm and the work principles of multi-tap adjustable arc suppression coil, partial magnetic arc suppression coil and SCR arc suppression coil are introduced, as well as the advantages of dynamic compensation technology and its application in arc suppression of single phase grounding fault in large-scale wind farm are discussed in this paper. Combined with the design and operating experiences of wind power, the main electrical wiring in booster station and equipment selection are optimized by using three-winding transformers and 35 kV neutral point grounding via arc suppression coil. The field test results show that this scheme is beneficial to the safe and stable operation of wind farms.