摘要
随着复杂网络理论在电力系统中应用研究的深入,基于复杂网络理论的系统脆弱度评估不再只是单纯考虑电力系统网络拓扑结构对电力系统安全稳定的影响,而是结合了电力系统本身的物理特性,从而更加有针对性地研究电力系统面临的安全稳定问题。为快速评估线路故障对系统的影响,提出了一种新的基于复杂网络理论的系统脆弱度评估方法。该评估方法综合考虑了系统的负荷水平、线路的传输功率容量利用率和系统的小世界特性,更加全面地评估了输电线路故障对电力系统静态安全稳定的影响。最后,通过对IEEE 118节点系统的仿真分析,验证了系统指标和评估方法的有效性。
With the deepening of complex network theory application in power systems,vulnerability assess-ment based on complex network theory is not merely considering the influence of power system topology structure on power system security and stability while combining with the physical characteristics of power system and thus investigates security stability problems facing power systems.In order to evaluate the influ-ence of fault on system rapidly,the paper proposes a new system vulnerability assessment method based on complex network theory,which takes the load level,transmission power capacity utilization ratio of transmis-sion lines and small world characteristics of the system into account and comprehensively evaluates the influ-ence of transmission line faults on static safety and stability of power systems.Finally,through simulation analysis of IEEE 118 node system,validity of system index and evaluation method is verified.
作者
陈伟华
王刚
叶仁杰
张浩
刘倩
CHEN Weihua;WANG Gang;YE Renjie;ZHANG Hao;LIU Qian(State Grid Taizhou Power Supply Company,Taizhou Zhejiang 318000,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology),Wuhan 430077,China;Affiliated Union Hospital of Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430022,China)
出处
《浙江电力》
2018年第3期7-11,共5页
Zhejiang Electric Power
基金
国家高技术研究发展计划资助项目(2015AA050201)
关键词
复杂网络
脆弱度评估
输电线路
负荷水平
线路传输功率容量利用率
complex network
vulnerability assessment
transmission line
load level
transmission power capacity utilization ratio of transmission lines
