采用基于市场控制的微网分布式能量优化方法

摘要

In order to implement coordinated operation of distributed energy resources (DERs) in the microgrid and to adapt to the core idea of the Energy Internet,a distributed energy optimization method using market-based control is proposed.Firstly,this method is proved equivalent to the centralized energy optimization one theoretically with its general operation flow established.Secondly,based on the heuristic rules,the bidding strategies of distributed generators,time-shiftable loads,energy storages,and the tie-line are put forward systematically.Finally,the effect of the method on peak shaving,economic efficiency and the increase of renewable energy consumption rate is verified by simulation.The proposed method replaces the traditional centralized optimization with the distributed decision of each DER to better protect the privacy of customers and meet the requirements of different types of DERs to integrate into the microgrids of all scales in a standardized way.%为了控制微网内各类分布式能源的协调运行,同时适应能源互联网的核心理念,提出了采用基于市场控制的微网分布式能量优化方法.首先,从理论上论证了该方法与集中式能量优化方法的等价性,并建立了分布式能量优化的通用流程.然后,基于启发式规则,系统地提出了分布式电源、可平移负荷、储能、联络线等资源的投标策略.最后,通过仿真计算,验证了该方法在削峰填谷、经济性以及提高可再生能源消纳率等方面的效果.所提出的方法利用各分布式能源的分布式决策代替传统的集中式优化,能够更好地保护用户隐私,并能够适应各种类型的分布式能源以标准化方式接入不同规模微网的要求.