摘要
现阶段许多关键基础设施的正常运行都离不开电力系统。为了评估电力系统在遭受极端扰动事件之后的恢复能力,将韧性的概念引入到电力系统中来。在现有电力系统韧性量化指标的基础上,将量化极端扰动事件的影响转化成量化不同线路故障的影响,提出了电力系统的韧性量化指标,系统级韧性指标用于衡量系统整体的韧性,确定出系统的薄弱环节。最后利用IEEE RTS-79节点系统算例,具体计算出在台风天气下该电力系统的韧性量化指标,根据计算的各种指标结果找出系统的薄弱环节,同时确定出了最优韧性提升措施。
At present,the normal operation of many critical infrastructures relies on power systems.To evaluate the re covery capability of one power system after it has suffered from extreme disturbance events,the concept of resilience is introduced to the power system.On the basis of the existing resilience quantification indices for power systems,the quantification of influences resulting from the extreme disturbance events is changed to the quantification of those result ing from faults on different lines,thus the novel indices are proposed.As a result,the overall resilience of the power system can be assessed by these system-level resilience indices,and the system’s weak points can be identified.Final ly,the proposed approach is tested on an IEEE RTS-79 test system,and the resilience indices of this system under ty phoon are calculated,according to which the system’s weak points can be found.Meanwhile,the optimal enhancement measure is determined based on the obtained resilience indices.
作者
张鑫
王楠
王伟
冯军基
刘晓楠
侯恺
ZHANG Xin;WANG Nan;WANG Wei;FENG Junji;LIU Xiaonan;HOU Kai(Electric Power Research Institute,State Grid Tianjin Electric Power Company,Tianjin 300384,China;Key Laboratory of Smart Grid of Ministry of Education(Tianjin University),Tianjin 300072,China)
出处
《电力系统及其自动化学报》
CSCD
北大核心
2019年第8期21-26,共6页
Proceedings of the CSU-EPSA
基金
国家自然科学基金资助项目(51707129)
中国博士后科学基金资助项目(2018M630273)
天津市自然科学基金资助项目(18JCQNJC07600)
智能电网联合基金资助项目(U1766210)
杰出青年基金资助项目(51625702)
关键词
电力系统
极端天气
韧性量化
评估指标
薄弱环节
power system
extreme weather
resilience quantification
assessment index
weak point
