摘要
电力系统中光伏等分布式可再生能源快速发展,分布式屋顶光伏成为新型智能微电网的典型特征。为提高含高比例光伏微电网的稳定性和经济性,提出了利用居民侧灵活负荷调节以及储能设备充放电来实现的广义需求响应,从而增加微电网内光伏波动性出力的消纳,降低智能微电网的运行成本。以居民住宅微电网为研究对象,基于连续仿真软件GridLAB-D建立了住宅模型、光伏发电模型、储能设备模型、气候和电力市场模型等,并提出了广义需求响应中灵活负荷和储能设备的控制算法。通过IEEE 13节点测试系统模型,验证了广义需求响应在智能微电网中的实施能够有效降低弃光率、节约用户用电成本,并能够协助主网系统减小负荷峰谷差。
The distributed renewable energy sources such as photovoltaics in the power system are developing rapidly.The distributed rooftop photovoltaics have become a typical feature of smart micro-grid.In order to improve the stability and economy of the micro-grid with high penetration of photovoltaics,a generalized demand response is proposed in this paper by regulating flexible loads and energy storage equipment of residential customers,so as to increase the consumption of fluctuating photovoltaics and reduce the operating cost of smart micro-grids.Based on the continuous simulation software GridLAB-D,the model of residential micro-grids is developed,including the power generation model of photovoltaics,energy storage model,climate model,and electricity market model.Besides,control algorithms of the generalized demand response for flexible loads and energy storage devices areproposed.The proposed models and methods are verified by utilizing the IEEE 13-nodes test feeder model.The results illustrate that the generalized demand response in micro-grids can effectively reduce the curtailment of photovoltaics,save customers’electricity cost,and assist the main network to reduce the peak-valley difference of loads.
作者
漆淘懿
惠红勋
徐立中
马翔
丁一
QI Taoyi;HUI Hongxun;XU Lizhong;MA Xiang;DING Yi(Zhejiang University,Hangzhou 310027,China;State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310007,China)
出处
《供用电》
2020年第7期3-10,共8页
Distribution & Utilization
基金
国网浙江省电力有限公司科技项目“大规模负荷资源参与需求响应商业模式与关键技术研究”(5211JH1900M7)。
