Long-scale Optimal Scheduling of Cogeneration Integrated Energy System Considering Battery Energy Storage Life Attenuation

In order to cope with the challenges of coordinated supply of multiple types of energy and low-carbon economic operation, this paper proposes an integrated energy system (IES) operation optimization scheduling strategy considering combined heat and power (CHP) and battery energy storage technology. By taking advantage of the green nature of photovoltaic (PV) power generation and the high efficiency of CHP energy supply, the carbon emission of IES is reduced. Considering the life attenuation characteristics of battery energy storage system (BESS), the influence of battery on the optimal scheduling operation of IES in long time scale is studied. Taking the minimum operating cost of IES as the objective function, a long-scale optimal scheduling model of cogeneration IES considering BESS life attenuation is constructed. Under a variety of simulation analysis, the economy and low carbon of the model are verified, and the influence of BESS life attenuation on IES scheduling is obtained.