当风力发电机组在额定风速启动并网时，对电网频率的影响较大。

Wind turbine generators have relatively large influence on grid frequency when they start up and are connected to the power grid.

youdao

当风力发电机组在额定输出有功功率跳闸退出电网时，对电网频率的影响最大；

Wind turbine generators have the biggest influence on grid frequency when the generators trip and exit the power grid at rated active output power.

youdao

当风力发电机组在额定输出有功功率跳闸退出电网时，对电网频率的影响最大；

Wind turbine generators have the biggest influence on grid frequency when the generators trip and exit the power grid at rated active output power.

youdao