Coupling Integration and Evaluation of Centralized Energy Station and Distributed Energy Cascade Utilization System

The integrated energy system (IES) has the characteristics of integrating and improving system performance and high reliability. Firstly, the paper analyses the problems existing in the original energy supply architecture and introduces the comprehensive energy supply architecture with deep gradient utilization. At the same time, the technical and economic model of IES is proposed as an index to evaluate the profitability of the system. An objective function of maximum return considering energy supply is proposed. This problem is a mixed integer linear programming (MILP) problem that is optimized to achieve IES operation optimization from an economic perspective. Finally, the method is applied to a numerical example to verify the economic foresight and practical usability of the proposed method.