Coordinated and Optimized Allocation of Electrical/Thermal/Cold Energy Storage in Regional Integrated Energy System

Energy storage is the link of integrated energy system integration, how to allocate multi-energy storage is an important research direction in integrated energy system planning. For this reason, a configuration model of multi-energy storage in a regional integrated energy system (RIES) is proposed, which takes into account the reactive power capacity of electrical energy storage and the comprehensive efficiency of multi-energy storage, and integrates the typical daily operation of RIES. This model is used to obtain multi-energy storage rated capacity, rated power, and other planning schemes, with the goal of economy and environmental protection, including energy storage planning constraints and RIES operating constraints. The results of the example show that the cooperative configuration of multi-energy storage is superior. Considering the reactive power of electrical energy storage, the optimized configuration of multi-energy storage can improve the economy by reducing the power transmission loss of the power grid.