考虑综合需求响应的多区域综合能源系统协同优化调度模型

Collaborative optimal scheduling model of multi-region integrated energy system considering integrated demand response

新型电力系统大背景下,风光接入规模不断扩大,需求侧负荷类型愈发多样化。为提高综合能源系统的多能耦合转换能力,匹配源荷两侧供需关系,文章提出一种考虑综合需求响应的多区域综合能源系统协同优化调度模型。建立了考虑多种可调负荷的综合需求响应负荷模型和成本及收入模型;构建能源流向为“源侧出力-输入端能源节点-能源集线器-输出端能源节点-终端负荷”的多区域综合能源系统能流拓扑,并建立其能源耦合矩阵;在此基础上,以系统总调度成本最小为优化目标,建立考虑区域间电能交互的多区域综合能源系统协同优化调度模型;通过对冬夏典型日下的多种调度方案进行算例对比分析,证明所提模型能够增强总系统的多能耦合转换能力,进而有效提高系统整体经济性、灵活性和可靠性。

In the context of the new power system,the growing wind-solar access scale and increasingly complex demand side load types brought new challenges.In an attempt to enhance the ability to couple and convert multiple energy sources of integrated energy system to match the supply-demand relationship between the source and load,a collaborative optimal scheduling model of multi-region integrated energy system(MRIES) considering the integrated demand response(IDR) is proposed in this paper.The IDR load model and IDR cost-income model considering multiple adjustable loads are established.The energy flow topology of the MRIES with energy flow direction of "source-input energy node-energy hub-output energy node-terminal load" is constructed,and its energy coupling matrix is set up.On this basis,the optimal model of MRIES is established considering the interaction of regional electricity and energy to minimize the total cost of the system.Through the comparative analysis of several scheduling schemes on typical days in winter and summer,it is proved that the proposed model can enhance the multi-energy coupling conversion capability,and thus effectively improve the overall economy,flexibility and reliability of the system.