中国电机工程学报2018，Vol.38Issue(2)：505-513,9.DOI:10.13334/j.0258-8013.pcsee.162547
极端天气条件下的配电网韧性分析方法及提升措施研究
Assessing and Boosting Resilience of Distribution System Under Extreme Weather
摘要
Abstract
Distribution system blackouts with tremendous economic losses may occur under extreme weather.And resilience describes the ability of distribution network withstanding nature disasters,decreasing the loss of faults,and restoring normal power supply as fast as possible.To improve the resilience evaluation and analysis method,the influence of extreme weather on distributed network components was quantified and failure model of overhead lines was established to describe the numerical relation of the speed of hurricane and failure probability.Failure scenarios were selected based on Shannon entropy and the possible blackout level was confirmed.Secondly,resilience evaluation method was proposed considering load loss in different scenarios.Thirdly,contribution of traditional hardening method and distributed generation to distribution network resilience were compared.The probability distribution of resilience was obtained by non-parametric kernel density estimation,which can fully reflect the contribution of stochastic fluctuation distributed generation to distribution network resilience.Finally,the case study verified the validity and accuracy of the proposed approach in this article.关键词
配电网韧性/分布式电源/极端天气/系统信息熵/非参数核密度估计Key words
distribution system resilience/distributed generation/extreme weather/Shannon entropy/non-parametric kernel density estimation分类
信息技术与安全科学引用本文复制引用
周晓敏,葛少云,李腾,刘洪..极端天气条件下的配电网韧性分析方法及提升措施研究[J].中国电机工程学报,2018,38(2):505-513,9.基金项目
国家重点研发计划资助项目(2016YFB0900401) （2016YFB0900401）
国家自然科学基金项目(51477116).Project Supported by the National Key R&D Program of China (2016YFB0900401) （51477116）
Project Supported by National Natural Science Foundation of China (51477116). （51477116）
