In the context of the dual carbon target, China has continued to adjust the share of renewable energy. In this paper, wind power generation and photovoltaic power generation systems are coupled to the CCHP system, and the excess power of the system is stored through hydrogen production. In this paper, the physical and mathematical models of the RE-CCHPH2 system are established by using mixed integer programming model. The objective function of optimization is the lowest system cost. The system's cooling, heating and electrical load requirements can be met by optimizing equipment capacity. Finally, the system is evaluated with primary energy saving rate, carbon dioxide emission reduction rate and cost saving rate. The model verifies the feasibility of the new coupling system and solves the problems of wind and light abandoning to a certain extent. New system reduces waste of renewable energy and improves energy efficiency. And it provides a solution for the future urban energy system.
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