Some scholars have expounded that the load characteristics play a key role in frequency control, and the frequency characteristics of the generator set work together with the frequency characteristics of the load, which determines the frequency characteristics of the whole system. The paper builds a frequency characteristic model with asynchronous motor integrated load, and after analyzing and studying the power system including wind power, it is proved that the magnitude of system frequency fluctuation will be reduced when the load frequency characteristics are considered and the power grid FM capacity is equal.
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