摘要
含多种分布式电源、储能装置的微电网在主动配电网故障后孤岛运行,可提高主动配电网的可靠性和故障恢复能力。为了描述风速、光照强度及负荷的不确定性,运用Copula理论,建立了基于D藤Copula的三维相关性模型,针对孤岛微电网在故障检修期内的出力大小,结合风险理论构建了孤岛微电网对外供电能力模型,并利用蒙特卡洛模拟技术对计及相关性的孤岛微电网对外供电能力进行求解。算例结果验证了所提模型和方法的合理性,同时相关性对孤岛微电网对外供电能力有一定影响。
A microgrid with multiple distributed generations and energy storage devices can operate on an island after an active distribution network fault, which can improve the reliability and fault recovery capability of the active distribution network. In order to describe the uncertainty of wind speed, light intensity and load, a three-dimensional correlation model based on D-vine Copula is established by using Copula theory. Aiming at the output of the islanded microgrid during the period of fault maintenance, the external power supply model of the islanded microgrid is constructed based on the risk theory. The Monte Carlo simulation technology is used to calculate the external power supply capability. The results of the example verify the rationality of the model and method, and the correlation has a certain impact on the external power supply capacity of the islanded microgrid.
作者
陈攀峰
程浩忠
张宏伟
王华磊
CHEN Pan-feng;CHENG Hao-zhong;ZHANG Hong-wei;WANG Hua-lei(College of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China;School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Grid Qingdao Power Supply Company,Qingdao 266002,China)
出处
《水电能源科学》
北大核心
2019年第5期198-201,共4页
Water Resources and Power
基金
国网山东省电力公司科技项目(2017A-114)
国家重点研发计划(2016YFB0900102)
