基于电价联动的虚拟电厂源⁃荷协调经济性研究  

Economic research on virtual power plant source⁃load coordination based on electricity price linkage

作　　者：仓鹤鸣 蔺红[1] CANG Heming;LIN Hong(School of Electrical Engineering,Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830017

出　　处：《现代电子技术》2022年第23期149-155,共7页Modern Electronics Technique

基　　金：国家自然科学基金项目(51667019);新疆维吾尔自治区自然科学基金项目(2017D01C029)。

摘　　要：针对大规模分布式能源接入导致电网等效负荷峰谷差变大以及其在电网运行下的经济优化调度问题,在电力市场环境下,提出一种基于电价联动的虚拟电厂定价方法,通过分布式电源、虚拟电厂运营商和用户的三方联动博弈的方法解决问题。首先,需要对分布式电源出力以及负荷进行日前预测出力,通过横向、纵向分析负荷曲线,采用两部制电价法制定容量电价和电量电价,进而确定初始上网电价;然后,根据电价信号的传递性,通过电价联动优化峰谷分时电价,引导用户改变用电习惯,达到削峰填谷和增大收益的目的;最后,采用引入参与度的改进Shapley值法对分布式电源进行收益分配。通过电价联动前后负荷曲线及分布式电源收益对比分析,算例仿真结果验证了所提方法的有效性和经济性。In view of the fact that the peak⁃valley difference of equivalent load of power grid becomes larger due to large⁃scale distributed energy access and the problem of economic optimization scheduling in the operation of power grid,a virtual power plant(VPP)pricing method based on electricity price linkage is proposed in the environment of power market.The method of linkage game in three parties(the distributed generation(DG),the virtual power plant operator and the user)is adopted.The day⁃ahead forecast output of the distributed generation output and load need to be predicted.After the horizontal and vertical analysis of the load curve,the capacity price and electric quantity price are formulated by the two⁃part tariff method to determine the initial on⁃grid price.According to the transmissibility of electricity price signal,the peak⁃valley TOU price is optimized by the electricity price linkage to guide users to change their electricity consumption habits,so as to achieve the purpose of revenue increase by peak cutting and valley filling method.The improved Shapley value method with degree of participation is used to distribute the income of the distributed generation.The efficiency and economy of the proposed method has been verified by the results of example simulation and by the comparative analysis of load curve and the revenue of the distributed generation before and after the electricity price linkage.

关 键 词：经济优化模型 电力市场 分布式电源 虚拟电厂 电价联动博弈 峰谷分时电价 削峰填谷 改进Shapley值法 

分 类 号：TN609-34[电子电信—电路与系统] TM734[电气工程—电力系统及自动化]