计及负荷聚合商的综合能源系统双层主从博弈运行优化

Optimization study of integrated energy system hierarchical stackelberg game operation with load aggregator

随着综合能源系统(Integrated Energy System,IES)的兴起,传统的需求响应逐渐转变为综合需求响应(Integrated Demand Response,IDR)。如何在综合能源系统中建立涉及综合能源用户与负荷聚合商(Load Aggregator,LA)的多方利益主体运行机制和价格策略,是将负荷聚合商引入综合能源市场的首要问题。文章考虑两类需求响应类型,建立了综合能源系统、负荷聚合商和用户三者之间的运行优化机制和交易策略模型,并将其表达为双层主从博弈模型;提出了分布式组合求解算法,在三者不断交互的博弈过程中,实现三者利益均衡。考虑负荷聚合商是否实施电力辅助服务及综合需求响应,建立了3种情景,比较不同情景下综合需求响应策略、能源定价策略及能源交互策略。结果表明,文章所提出的负荷聚合商参与综合需求响应的运行机制有效地发挥了需求响应资源的作用,双层主从博弈模型的引入保证了该机制长久运行,为未来综合能源系统的发展提供了新思路。

With the rise of integrated energy systems(IES),the traditional demand response is gradually transformed into an integrated demand response(IDR).How to establish a multi-interest trading mechanism and price strategy involving customers and load aggregators(LAs)in IES is the primary issue in introducing LAs into the integrated energy market.Considering two types of demand response types,the paper establishes a two-tier IDR mechanism among IES,LA,and customers,and describes it as a two-tier master-slave game model,and proposes a combined distributed solution algorithm to achieve the equilibrium of the interests of the three-part in the game process of their continuous interaction.Three scenarios are established considering whether LAs implement electricity auxiliary services and IDR,and comparing IDR strategies,energy pricing strategies and energy interaction strategies under different scenarios.The results show that the proposed transaction mechanism of LA participation in IDR effectively plays the role of demand response resources,and the introduction of the two-layer master-slave game model ensures the long-term operation of the mechanism and provides new ideas for the future development of integrated energy systems.