基于电价型需求响应的微电网两阶段随机调度方法  

Two-stage Stochastic Scheduling Method for Microgrid Based on Price-based Demand Response

作　　者：谷守信 张建成[1] GU Shouxin;ZHANG Jiancheng(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2018年第2期39-46,共8页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51177047);河北省科技计划项目(16214504D)

摘　　要：研究了电价型需求响应参与微电网调度运行的问题,在电价型需求响应的基础上,采用场景法考虑微电网中风光出力的随机不确定性,建立了微电网两阶段随机优化模型,由第一阶段的需求响应资源参与风光消纳,引导用户响应风光出力的变化,在第二阶段通过调整可控微源的备用资源,校正实时运行场景下的供需不平衡,满足不同风光出力场景的差别需求。算例结果表明所提考虑电价型需求响应的微电网两阶段随机调度方法具有应对不确定风光出力的鲁棒性,可以有效提高微电网系统整体运行的经济性。This paper focuses on the price-based demand response on the scheduling and operation of microgrid.Based on the price-based demand response model,the authors adopted scenario method to depict the randomness and uncertainty of wind and photovoltaic output in microgrid,then a two-stage stochastic optimization model for microgrid was established.The scheduling of price-based demand response resource was optimized in the first stage to accommodate wind and photovoltaic output.In the second stage,the authors adjusted the reserve resources of the dispatchable distributed generations to deal with the imbalance between power supply and load demand in real-time operation scenario,so as to meet the needs of different output scenarios.The results indicate that the proposed two-stage price-based demand response stochastic scheduling method has the merit in coping with the uncertainty of wind and photovoltaic output,which can effectively improve the economy of overall microgrid.

关 键 词：微电网 电价型需求响应 两阶段随机调度 场景缩减 

分 类 号：TM614[电气工程—电力系统及自动化]