电力系统保护与控制Issue(9)：7-12,6.
故障状态下电网电压自愈策略研究
Research on voltage self-healing strategy for grid under fault condition
摘要
Abstract
When serious fault happens, one of the main tasks of grid self-healing function is to avoid voltage instability effectively. For the power system with serious fault, this paper divides the process of voltage self-healing into two steps:recovering system stability and enhancing node voltage according to system stability and voltage amplitude. Then for each step, based on graph theory, the load which will be cut is determined according to the power flow before fault and the power flow after fault respectively. Then load is cut off successively using dichotomy until the system recovers voltage stability and maintains system voltage meeting a certain level. The simulation results of IEEE 30-bus system and a regional 17-bus system show that the method is simple and effective.关键词
电压自愈策略/紧急状态/电压稳定/切负荷/图论法Key words
voltage self-healing strategy/fault condition/voltage stability/load shedding/graph theory分类
信息技术与安全科学引用本文复制引用
卢锦玲,白丽丽,杨仁刚..故障状态下电网电压自愈策略研究[J].电力系统保护与控制,2013,(9):7-12,6.基金项目
国家电网公司科技项目 （）
