关键词: 综合能源系统, 混合储能, 光热集热模块, 容量配置, 热电联产, 先进绝热压缩空气储能, 电池储能

Abstract:

 [Objectives] The hybrid energy storage  system has the advantage of multi-time-scale energy management, which not only allows for peak shaving and valley filling of the power grid but also improves the utilization of renewable energy and the economy of integrated energy systems. Therefore, this paper constructs an optimized configuration model for hybrid energy storage, including an advanced adiabatic compressed air energy storage (AA-CAES) system with a solar thermal collection module and battery energy storage. [Methods] First, a hybrid energy storage system consisting of AA-CAES and batteries was developed to improve the response time of the energy storage system. Second, the solar thermal collector module was used as the external heat source for the AA-CAES to enhance the flexibility of the system's heat scheduling. Then, a two-layer optimization model was constructed with the objective of minimizing the total annual system cost in order to find the optimal configuration for the system's capacity. Finally, the integrated energy system was simulated and verified using typical AA-CAES system equipment data. [Results] The results show that the total cost of the energy storage system with battery storage added is 1.64% lower than that of a single AA-CAES. Moreover, the total cost of the hybrid energy storage system with the addition of a solar thermal collection module is further reduced by 2.05%. [Conclusions] The proposed hybrid energy storage model, it is possible to further enhance the system's energy scheduling flexibility while ensuring economic viability, providing a reference for the stable and economical operation of integrated energy systems.

Key words:  , integrated energy system, hybrid energy storage, solar thermal collection module, capacity allocation, combined heat and power, advanced adiabatic compressed air energy storage, battery storage