Abstract: In view of the poor coordination and economy of energy management in the integrated energy system of industrial parks， this paper proposes an energy management method considering energy supply reliability. Firstly， the typical operation mode of integrated energy system is constructed， and the efficiency and economic model of the main components in the system are established. Secondly， considering the operation and maintenance cost of the devices and the energy interaction cost between the park and the main power grid， the economic dispatching model of integrated energy system is constructed， which takes the comprehensive generation cost as the objective function. The constraints are cooling and heating load balance， unit climbing power and energy supply reliability. Then， the encoding method of genetic algorithm is improved to solve the time series problem of energy management， and a new optimization algorithm is proposed. Finally， an example is given to verify the effectiveness and practicability of the proposed method.

Key words: integrated energy system, energy management, CCHP, energy supply reliability, genetic algorithm