Not only high power factor synchronous motor, and its speed is independent of the load, depends only on grid frequency.

同步电动机不但功率因数高，而且其转速与负载大小无关，只决定于电网频率。

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

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。

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

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；

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

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；

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