基于行波的风电场集电线路波头算法研究

Research on Wave Head Algorithm of Wind Farm Collector Line Based on Traveling Wave

针对风电场线路采用电缆架空混架情况较多,传统阻抗法故障测距对于风电场较难实现的问题,从行波法故障测距角度出发,利用双端法故障测距实现风电场集电线路的故障测距。对于行波法故障测距,影响其故障测距的精度为行波到达监测终端的时间和行波在风电场线路中传输的速度,因此利用大量风电场采集的数据,对风电场故障时刻行波进行研究。该算法对于风电场故障测距精度具有较大提升,可减小风电场运维工作量,实现风电场经济效益。

There are many situations in which wind farm lines use cable overhead hybrid racks,traditional impedance method fault location is difficult to achieve for wind farms.From the perspective of traveling wave fault location,the double-terminal fault location method is used to realize the fault location of wind farm collection lines.For traveling wave fault location,the accuracy of fault location is affected by the time when the traveling wave reaches the monitoring terminal and the transmission speed of the traveling wave in the wind farm line.Therefore,using many data collected by the wind farm,the traveling wave at the fault time of the wind farm is studied.The algorithm can greatly improve the fault location accuracy of wind farm,reduce the operation and maintenance workload of wind farm and realize the economic benefits of wind farm.