Flexible Load Participation in Peaking Shaving and Valley Filling Based on Dynamic Price Incentives  

作　　者：Lifeng Wang Jing Yu Wenlu Ji 

机构地区：[1]Nanjing Power Supply Company,Nanjing,210019,China [2]State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing,211103,China

出　　处：《Energy Engineering》2024年第2期523-540,共18页能源工程（英文）

基　　金：supported in part by Technology Project of State Grid Jiangsu Electric Power Co.,Ltd.,China,under Grant J2022011.

摘　　要：Considering the widening of the peak-valley difference in the power grid and the difficulty of the existing fixed time-of-use electricity price mechanism in meeting the energy demand of heterogeneous users at various moments or motivating users,the design of a reasonable dynamic pricing mechanism to actively engage users in demand response becomes imperative for power grid companies.For this purpose,a power grid-flexible load bilevel model is constructed based on dynamic pricing,where the leader is the dispatching center and the lower-level flexible load acts as the follower.Initially,an upper-level day-ahead dispatching model for the power grid is established,considering the lowest power grid dispatching cost as the objective function and incorporating the power grid-side constraints.Then,the lower level comprehensively considers the load characteristics of industrial load,energy storage,and data centers,and then establishes a lower-level flexible load operation model with the lowest user power-consuming cost as the objective function.Finally,the proposed method is validated using the IEEE-118 system,and the findings indicate that the dynamic pricing mechanism for peaking shaving and valley filling can effectively guide users to respond actively,thereby reducing the peak-valley difference and decreasing users’purchasing costs.

关 键 词：Demand response fixed time-of-use electricity price mechanism dynamic price incentives mechanism bi-level model flexible load 

分 类 号：F426.61[经济管理—产业经济]