基于节点电价的需求响应策略研究  

Research on Demand Response Strategy Based on Nodal Price

作　　者：曹佳[1] 马洪艳[1] 刘扬[1] 严正[1] 刘福斌[2] 杨立兵[2] 

机构地区：[1]电力传输与功率变换控制教育部重点实验室(上海交通大学电气工程系),上海市闵行区200240 [2]华东电网有限公司,上海市浦东新区200120

出　　处：《电网技术》2016年第5期1536-1542,共7页Power System Technology

基　　金：国家自然科学基金项目(51377103);国家电网公司科技项目"华东交直流特高压受端电网跨省区电力交易等值网络模型研究与应用"~~

摘　　要：针对持续增大的负荷造成峰谷差增大以及大规模新能源并网给电力系统安全、稳定运行带来的一系列问题,基于节点电价进行了需求响应策略研究。首先,建立了含风电场的最优潮流模型,并采用跟踪中心轨迹内点法进行求解。然后,以最优潮流模型中潮流方程对应的拉格朗日乘子作为节点电价,提出了两阶段负荷需求响应模型,并将该模型应用于改进的IEEE-30节点测试系统。算例表明:两阶段负荷需求响应能够降低用户侧的节点电价,减少发电侧的燃料费用,充分利用风电资源;在一定程度下,用户侧参与需求响应能够将高电价节点的负荷转向低电价节点,并且参与需求响应的容量大小决定需求响应的程度。In view of problems of power system security and stability operation caused by increase of peak-valley load difference and large scale renewable energy integration into power system,research on demand response based on nodal prices is conducted in this paper.Firstly,optimal power flow model including wind farms is established,and path tracking interior point method is employed.Then,taking Lagrange multipliers of corresponding power flow equations in the model as nodal price,a model of two phases load demand response is proposed and applied to a modified IEEE 30-bus test system.Simulation results show that two phases load demand response can reduce nodal price and fuel costs,and make full use of wind power.To a certain extent,demand response level is determined by user＇s capacity,and can transfer load from nodes with higher nodal price to nodes with lower nodal price.

关 键 词：节点电价 需求响应 风电场 最优潮流 跟踪中心轨迹内点法 

分 类 号：TM73[电气工程—电力系统及自动化]