考虑多能互补的区域综合能源系统多种储能优化配置

在区域综合能源系统中配置多种储能装置可提高系统的经济效益,是区域综合能源系统规划的重要研究方向。基于区域综合能源系统的基础架构和模型,研究了蓄冷、储热、储电和混合储能在冷热电联供(CCHP)机组和电制冷等设备多能互补协同运行情况下的盈利策略,讨论了系统配置不同储能的经济性和可行性,建立了全寿命周期的冷热电储能调度规划双层优化模型,并利用确定性迭代算法进行求解。针对某实际区域综合能源系统的多个供能季不同日负荷曲线,应用双层优化模型求解运行调度方案和储能配置容量。算例结果表明:配置蓄冷和储热在多能互补协同运行系统中有较大的盈利空间,而配置储电的利润空间较小,且考虑多能互补的混合储能方法可以进一步挖掘系统的盈利能力。

Optimal configuration of multi-energy storage in regional integrated energy system considering multi-energy complementation

The configuration of multi-energy storage devices in the RIES(Regional Integrated Energy System) can greatly improve the economic benefits of the system and it is an important research direction of RIES planning. Based on the infrastructure and model of RIES, the profit strategies of cooling storage, heating storage, power energy storage and hybrid energy storage in the multi-energy complementation synergistic operation of CCHP(Combined Cooling, Heating and Power) units and electric refrigeration equipment are studied, the economy and feasibility of different energy storage configurations are discussed. A bi-level optimization model for life-cycle dispatching planning of coo-ling-heating-power energy storage is established, which is solved by the deterministic iterative algorithm. Based on the different daily load curves in multiple power-supply seasons of an actual RIES, the proposed bi-level optimization model is used to solve the operation scheduling scheme and the capacity configuration of energy storages. Simulative results show that the configuration of cooling storage and heating storage in the RIES has a greater profit margin, while the configuration of power energy storage has a smaller profit margin and the configuration of hybrid energy storage can further excavate the profitability of the system.