Multi-objective Optimal Operation of District Integrated Energy System

District Integrated Energy System can realize the coordination and stepped utilization of multiple energy, improve the integrated utilization efficiency of energy, and take advantages of multiple energy into account. On the other hand, the optimal operation of District Integrated Energy System involves many stakeholders, the investment and operation mode of the system is more complex, and the demand side has different energy demands with different forms and characteristics, which will directly affect the operation economy and environmental protection of the system. This paper mainly studies the multi-objective optimal operation of the District Integrated Energy System considering economy and environmental protection. Firstly, the model of system is constructed, which includes multi-source supply and integrated load. Secondly, a multi-objective optimization problem considering economy and environmental protection is put forward. Finally, the linear weighting method combined with entropy weight method is used to solve the multi-objective optimization problem. The case analysis shows that the system operation can give consideration to economy and environmental protection after multi-objective optimization.