电力系统自动化2012，Vol.36Issue(5)：77-81,5.
基于风险的继电保护定值薄弱区域在线辨识
Risk Based On-line Identification of Weak Region of Relay Settings
摘要
Abstract
On-line verification plays an important role in improving operation level of power grid.However,when it applies to large-scale grid,it is often difficult for users to determine the weak degree of relay settings,because many relays cannot satisfy the verification requirements.Taking distance protection for instance,the operating incorrect probability of the relays when verification standards are not met is analyzed and relative load loss is used to quantify the results.Thus the weak region on-line identification of relay settings based on risk under current operation mode can be implemented.In the meantime,the weak degree analysis of relay settings under historical operation modes from the perspective system operation fluctuation is also given.The two methods serve together to provide users with basis for timely making reasonable relay settings regulation strategy.The proposed method is verified the rationality and feasibility with one project instance.关键词
距离保护/风险评估/定值薄弱区域/在线辨识/在线校核Key words
distance protection/risk evaluation/weak region of relay settings/on-line identification/on-line verification分类
信息技术与安全科学引用本文复制引用
黄超,李银红,石东源,覃松涛,郑发林,蒙亮..基于风险的继电保护定值薄弱区域在线辨识[J].电力系统自动化,2012,36(5):77-81,5.基金项目
国家自然科学基金青年基金资助项目 （）
