In order to realize the advanced adiabatic compressed air energy storage(AA-CAES) system participates in AGC frequency regulation in wide load range

and ensure the regulation rate does not exceed the Guangdong Frequency Regulation Auxiliary Service Market Transaction Rules(to avoid generating checking energy)

a control strategy with multi-level segmented parameter setting PID controller participating in the frequency regulation of unit automatic generation control(AGC) is proposed. Through APROS simulation platform

the response of 10 MW AA-CAES unit to AGC control instructions is simulated by using a single set of PID controllers and three sets of PID controllers. The research results show that

when the AA-CAES power generation system unit adopts one set of PID controller to respond to the AGC control instructions in wide load section range

the frequency modulation performance index K1 is greater than 5

which increases the assessment power of the energy storage power station and causes economic losses. When the unit adopts three sets of PID controllers with different parameters to optimize the frequency modulation performance index

the frequency modulation performance index K1 is within the required range

thereby the possibility of generating electricity for assessment is avoided and the economic benefits of the AA-CAES power generation system participating in auxiliary frequency modulation service is effectively improved.