电测与仪表2017，Vol.54Issue(14)：39-46,8.
基于改进功率介数的电网风险评估
Power grid risk assessment based on improved power betweenness
摘要
Abstract
For the State Council Decree No.599 "Electrical Safety and Accident Investigation and Handling Emergency Regulations", and "China Southern Power Grid Co., Ltd.,Electrical Accidents (Incidents) Investigation Procedure (Trial)" stressing on the user side of the grid after an accident, the improved power betweenness is put forward which considers the social property of generator and the load. The improved power betweenness is used to measure the degree of importance of lines and nodes, and the improved power betweenness is brought into grid failure consequences index to overcome the traditional risk assessment methods which have deficiencies in short of considering social property of the generator and the load and current flow influences. Indicators of failure which include network efficiency considering the primary system and the secondary system weights, the weighting entropy of grid flow, the severity of the voltage offset and severity of load loss. For the consequences of the failure indicators, intuition fuzzy analytic hierarchy process, taking into account the decision-making process membership, non-membership, hesitation of information in three areas which gives a comprehensive assessment of grid failure consequences. The non-sequential Monte Carlo method is used to calculate the probability of failure, to obtain the final grid failure risk. The example shows that the proposed method which is power grid risk assessment based on improved power betweenness can effectively measure the power grid risks in the case of emphasizing the importance of load.关键词
改进功率介数/电网风险/网络效率/加权潮流熵/直觉模糊层次分析法Key words
improved power betweenness/grid risk/network efficiency/weighting entropy of grid flow/intuition fuzzy analytic hierarchy process分类
信息技术与安全科学引用本文复制引用
栗然,翟晨曦,李永彬,吕子遇..基于改进功率介数的电网风险评估[J].电测与仪表,2017,54(14):39-46,8.基金项目
广东电网有限责任公司电力调度控制中心科技项目(036000QQ00150002) （036000QQ00150002）
