Field tests of grounding at an actual wind turbine generator system

Accidents caused by natural phenomena such as lightning are serious problems for the diffusions of wind power generations. Those problems affect the safety and reliability of wind turbine generator systems. Most of the breakdowns and malfunctions of the electrical and control systems inside wind turbines are caused by a rise in ground potential due to lightning. To solve those problems, the field tests are carried out, and the transient characteristics of an actual wind turbine grounding system have been obvious.