基于需求响应技术的主动配电网优化调度  

Optimal Scheduling of Active Distribution Network Based on Demand Respond Technology

作　　者：金炜[1] 骆晨[2] 徐斌[2] 王刘芳[2] 李伟 JIN Wei LUO Chen XU Bin WANG Liufang LI Wei(State Grid Anhui Electric Power Company, Hefei 230061, China State Grid Anhui Electric Power Research Institute,Hefei 230022, China)

机构地区：[1]国网安徽省电力公司,合肥市230061 [2]国网安徽省电力公司电力科学研究院,合肥市230022

出　　处：《电力建设》2017年第3期93-100,共8页Electric Power Construction

基　　金：国家重点研发计划项目(2016YFB0900400);安徽省电力公司科技项目(521205160021)~~

摘　　要：针对可再生能源大量接入配电网后,由于其自身出力的随机性和波动性给配网的调控所带来的困难,引入需求响应技术,充分利用用户受电价影响改变用电模式的能力,提出了一种主动配电网(active distribution network,ADN)鲁棒优化调度方法,在保证系统运行安全可靠的基础上优化配网运行。该方法分为三个阶段:第一阶段,通过不确定集的形式表征可再生能源出力的随机性,并通过极端场景法对集合进行削减,最终将不确定性参数转化为确定性参数;第二阶段,运用需求响应技术,通过电价激励达到调控负荷的目的,从而实现对负荷削峰填谷的作用;第三阶段,运用两层规划模型将可再生能源的无功调节能力与配电网传统调控手段相配合,统筹调控,从而实现降低主动配电网的网损和电压波动,减少传统设备的调节次数,优化配网运行。最后基于美国PG&E 69节点系统对所提方法的有效性进行了验证。With the increasing penetration of renewable power source into the distribution network,distribution network control has been a challenging issue due to the uncertainty and volatility nature of renewable power source. This paper proposes the robust optimization scheduling for active distribution network（ ADN） through introducing demand response technology and the full use of elastic load adjustment ability of users affected by electricity prices,which can optimize the operation of distribution network on the basis of ensuring the safe and reliable operation of the system. The proposed method is divided into three stages. In the first stage,in order to transform the uncertain parameters into deterministic parameters,renewable energy output uncertainty is described by uncertain set and the extreme scenario method is adopted to cut down the set. In the second stage,the proposed method uses demand response technology and electricity price incentive to regulate the load,so as to realize the function of power peak load shifting. In the third stage,based on the bi-level planning model,the reactive power adjustment ability of renewable energy can cooperate with the traditional control methods of distribution network as a whole regulation,for the purpose of reducing the network loss and voltage fluctuation of ADN,and the regulation number of traditional equipment,as well as the optimization of distribution network operation. Finally,the effectiveness of the proposed method is validated based on the American PGE 69-bus system.

关 键 词：主动配电网(ADN) 可再生能源 可调鲁棒优化 需求响应 两层规划模型 

分 类 号：TM711[电气工程—电力系统及自动化]