电力建设Issue(8)：12-17,6.DOI:10.3969/j.issn.1000-7229.2014.08.003
输电网安全性需求评估指标集的构建
Evaluation Indices Set Construction of Security Requirement for Transmission Network
摘要
Abstract
The core requirement of transmission network enterprise lies in the safe operation of transmission network. Failure in satisfying this requirement will result in disastrous loss on economic and social benefits.Hence,transmission network is expected to possess the capability of enduring possible disturbances in order to ensure the normal operation of grid and equipment,as well as avoid the power transmission interruptions.Through the analysis on the requirement satisfaction of transmission system stakeholders,the overall status of transmission network operation can be evaluated.Based on the stochastic characteristics of transmission network operation,this paper used a risk assessment method to construct evaluation indices set for the security requirement,and proposed the calculation model and method of security risk assessment indicators.Compared with the traditional researches on grid security,a scenario analysis approach was introduced.In detail, breakdown or normal operation of certain components under certain specific operating modes was modeled as a scenario,and a probabilistic model for the scenario was constructed with taking into consideration a variety of random factors.All kinds of security problems were studied in the specific scenarios.The security of the situations could be evaluated comprehensively according to the safety criterion indices;therefore a minimum expense of control could be adopted to measure the consequence of the disturbance on the transmission network operation.Through sampling method,the probability and consequence of each situation occurrence could be acquired;and with the assistance of calculating value at risk and conditional value-at-risk,the security risk of transmission network could be evaluated properly.关键词
输电网运行/电网安全/指标体系/需求评估Key words
transmission network operation/grid security/index system/needs assessment分类
信息技术与安全科学引用本文复制引用
黄文英,邓兆云,邓勇,何光宇,陈睿,刘铠诚..输电网安全性需求评估指标集的构建[J].电力建设,2014,(8):12-17,6.基金项目
国家自然科学基金资助项目（51077079）。 （）
