Study on the configuration and operation optimization of CCHP coupling multiple energy system

Due to the increasingly serious shortage of resources, new energy-using technologies and new energy sources have received widespread social attention. CCHP system, as an efficient and stable way of energy utilization, has wide application prospect, which can achieve energy ladder utilization and multi-energy complementary. In this study, a correlation model for configuration and operation optimization based on a bi-level model construction method is established for a CCHP coupled multi-energy system. A solution method based on sequence control configuration methods, sequential quadratic programming algorithm and feedback correction mechanism is proposed for the optimization model and a CCHP coupling multi-energy system optimization tool is developed using MATLAB. Then taking a commercial area in Tianjin as a specific case, after calculating, the optimized system has significant economic benefit, whose total annual operating cost can be reduced by 36.2% compared with the traditional sub-system. The study found an effective method for the design optimization of CCHP coupled multi-energy system, and gives a new idea for solving similar optimization problems.