考虑多元储能差异性的区域综合能源系统储能协同优化配置

Coordinated Optimal Allocation of Energy Storage in Regional Integrated Energy System Considering the Diversity of Multi-Energy Storage

储能作为综合能源系统融合的纽带,如何配置电/热/冷多能存储是综合能源系统规划中的重要研究内容。该文提出考虑电/热/冷多元储能差异化建模的区域综合能源系统储能协同配置方法。多元储能协同配置的基础是耦合能量流和储能特性描述,在耦合能流上明确含电/热/冷三种能量形式的综合能源系统结构,并建立电-热网络模型;在储能特性描述上基于储能统一模型建立电储能有功-无功特性模型和热/冷储能精细化模型,并定义多元储能综合效率用于控制不同类型储能效率对能源综合利用效率和经济性的影响。建立多元储能协同配置模型,该模型用于得到多元储能额定容量、功率、位置等规划方案,以经济性、环保性为目标,有机融合了典型日优化运行;采用遗传算法和Gurobi求解器相结合的混合策略求解。算例表明多元储能协同配置、协调运行具有优越性;考虑多元储能之间的统一性和差异性有助于得到更加全面的储能配置方案。

Energy storage is the link of integrated energy system integration.How to allocate multiple types of energy storage is an important research content in integrated energy system planning.A collaborative energy storage configuration method for regional integrated energy systems considering differential modeling of electricity/heat/cold multi-energy storage is proposed.The basis of the multienergy storage collaborative configuration is the description of coupling energy flow and energy storage characteristics.On the coupling energy flow,the integrated energy system structure containing three energy forms of electricity,heat and cold is defined,and the electricity-thermal network model is established.Based on the unified model of energy storage,the reactive power model of electrical energy storage and the refined model of thermal/cold energy storage were established,and the multi-energy storage comprehensive efficiency was defined to control the influence of different types of energy storage efficiency on the comprehensive energy utilization efficiency and economy.The multi-energy storage collaborative configuration model is established,which is used to get the multi-energy storage rated capacity,power and other planning schemes.With the goal of economy and environmental protection,it organically integrates the typical daily optimal operation.The hybrid algorithm combining genetic algorithm and Gurobi solver is used to solve the model.The example shows that the cooperative configuration and coordinated operation of multi-energy storage have advantages.Considering the unity and difference between multi-energy storage is helpful to get a more comprehensive energy storage configuration scheme.