电网技术Issue(4)：1045-1051,7.
三级电压控制体系下大电网暂态电压安全仿真及其控制策略
Simulation of Transient Voltage Security of Large-Scale Power Grid Under Three-Level Voltage Control System and Its Control Strategy
摘要
Abstract
In Matlab environment and using power system analysis tools (PSAT) software, the dynamic time-domain simulation of large-scale power grid with three-level voltage control system is implemented, and the influences of three-level voltage control system on transient voltage security of Guangdong power grid are analyzed. Analysis results show that the emergency action mode of secondary voltage control in the three-level voltage control system contributes to the post-fault transient voltage recovery of load buses in Guangdong power grid, however it cannot prevent the occurrence of transient voltage insecurity. For this reason, in allusion to transient voltage insecurity accident an optimal control strategy for emergency load shedding, in which the trajectory sensitivity is utilized to turn the dynamic optimal model into linear programming model to achieve emergency load shedding control strategy, is established, and it is verified by dynamic simulation that after serious fault the transient voltage security of Guangdong power grid can be recovered by the achieved control strategy.关键词
自动电压控制/暂态电压安全/紧急二级电压控制/电力系统分析工具箱(PSAT)Key words
automatic voltage control/transient voltage security/emergency secondary voltage control/power system analysis toolbox (PSAT)分类
信息技术与安全科学引用本文复制引用
杨银国,林舜江,欧阳逸风,刘明波,温柏坚,辛拓..三级电压控制体系下大电网暂态电压安全仿真及其控制策略[J].电网技术,2013,(4):1045-1051,7.基金项目
国家自然科学基金项目(51207056) （51207056）
中央高校基本科研业务费专项资金资助项目(2011ZM0021) （2011ZM0021）
