Abstract：To further improve the economy of integrated energy system（IES）capacity allocation，an IES

optimization configuration model based on supply-demand collaborative response was proposed，aiming to

determine the optimal comprehensive capacity of various equipment in the system. First of all，based on the

characteristics of electricity-heat and electricity-gas coupling equipment on the supply side and the integrated

demand response（IDR）of electricity-heat-gas on the demand side，a coordinated response strategy on both sides

of supply and demand was proposed. Secondly，in order to quantify the integrated demand response degree and

accurately evaluate the overall satisfaction level of electric-heat-gas load，the comprehensive satisfaction index of

electric-heat-gas load was proposed. Finally，the CPLEX solver was used to solve the IES economic optimal

allocation model to verify the effectiveness of the proposed model.

      Key words：collaborative response of supply and demand；comprehensive satisfaction of electrical heat and

gas；integrated energy system（IES）；economic optim allocation