Power generation unit frequency modulation performance measuring and calculating method and system suitable for frequency modulation auxiliary service market

The invention discloses a power generation unit frequency modulation performance measuring and calculating method and system suitable for a frequency modulation auxiliary service market. The method comprises the following steps: acquiring original data of a power generation unit in a clearing period; verifying each AGC instruction adjusting process of the power generation unit in the clearing time period; performing frequency modulation performance measurement and calculation on each AGC instruction adjustment process passing the verification; counting frequency modulation performance indexes of the power generation unit in the clearing time period, and completing the frequency modulation performance measurement and calculation of the power generation unit. The method can perform numerical calculation on the frequency modulation performance of the power generation unit in each clearing period, has good accuracy, can be suitable for single-machine or multi-machine power generation units, can be compatible with