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With the rapid development of ultra-high voltage grid and interconnections of regional power network, it brings adverse influence on frequency control of the power system. The stability of power grid frequency mainly depends on primary frequency compensation (PFC) and automatic power generation control (AGC) of thermal power units. By analyzing the interaction between them and the actual action response to frequency of accidents, the control strategy were studied. By transformation and logic optimizations, the proposed control strategy can significantly reduce the number of PFC malfunction and effectively guarantee the quality of the AGC control.

Control Strategy Research and Application Based on the Impact Analysis of PFC to AGC