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With the advancement of a new round of power system reform and the continuous access to renewable energy, the auxiliary service market has received extensive attention as an important service to ensure the safe and reliable operation of the power grid. However, it is difficult for the automatic generation control (AGC) units in the system to meet real-time fastness requirements of the power market. Based on the premise that “market electricity” and “planned electricity” coexist under the background of new electricity reform, this paper focuses on the upgrade and reconstruction of AGC units in “planned electricity”. With capacity matching and speed matching as the planning objectives, the optimization and reconstruction algorithm and model of the AGC units are established. Taking capacity matching and speed matching as research targets, the optimization and reconstruction algorithm and model of the AGC units are established. Finally, the effectiveness of the model and the specific scheme of the AGC unit optimization and reconstruction are established through simulation.

AGC unit capacity planning model considering auxiliary service market under the background of China’s new electricity reform