Energy storage equipment is a core part of the regional integrated energy system(RIES). Selecting the suitable type of ancillary services can reduce the system operation cost and help to increase the permeability of renewable energy sources in the power system. Firstly

the value of energy storage equipment connected to the power system at different locations is analyzed. And the compatibility relationship between various types of power system auxiliary service applications is considered. With the goal of maximizing profit

an economic evaluation model that comprehensively considers the characteristics of energy storage equipment and equipment operation constraints of different technology types and power levels is proposed. Simulation analysis is made by YALMIP+CPLEX in MATLAB and the corresponding operation strategy is made. The optimal operation strategy of energy storage equipment participating in ancillary service of RIES is guided by price parameters of power system in actual operation

and the maximum profit is realized.