风电场集电线路引流线故障分析与对策

Failure Analysis and Countermeasures for Drainage Line of Power Collection Line in Wind Farms

风力发电场35 kV集电线路是风电场电气设备的重要组成部分,而集电线路的稳定运行关系到风电场电气设备的供电可靠性,关系到升压站电气设备和风电机组电气设备的安全和稳定。风电场35 kV集电线路的运行环境恶劣且复杂,易受气候环境影响而引发各种故障。随着新能源电力的发展,风电场的建设规模越来越大。为了使风电场正常运行,必须做好35 kV集电线路的检修和维护工作,消除设备隐患。因此,针对风电场35 kV绝缘型引流线在大风期间发生折断的问题,以及其造成的风电场整条发电线路停运、升压站电压波动、风电机组变频器模块爆裂等问题进行分析,并提出了技术改造措施。

35 kV collector line of wind farm is an important part of wind farm electrical equipment.The stable operation of collector line is related to the power supply reliability of wind farm electrical equipment and the safety and stability of booster station electrical equipment and wind turbine electrical equipment.The operation environment of 35 kV wind farm collector line is harsh and complex,and it is vulnerable to various faults caused by climatic environment.With the development of new energy power,the construction scale of wind farm is becoming larger and larger.In order to maintain,operate and manage the wind farm well,we must do a good job in the maintenance of 35 kV wind farm collector line to eliminate the hidden trouble of equipment.In this paper,the breakage of 35 kV insulated drain line in wind farm during gale is analyzed,and the causes of the breakage of the whole power line,the voltage fluctuation of booster station and the burst of the inverter module of wind turbine are analyzed,and the technical improvement measures are put forward.