电力系统保护与控制Issue(24):115-121,7.
限流式动态电压恢复器及其参数设计
Dynamic voltage restorer with current limiting function and its parameter design
摘要
Abstract
For the voltage quality optimization under normal power operation, aiming at short-circuit fault in power system, a topology of dynamic voltage restorer with current limiting function (DVR-FCL) is proposed. A parameter design of DVR-FCL based on the objective function of current limiting impedance and the adjustment of DC voltage is introduced. The design methods of the DC link voltage, the output filter, series transformer capacity, the leakage reactance, the series converter and the DC link capacitor are analyzed in detail. The operations of DVR-FCL to voltage sag and short-circuit fault are respectively verified by PSCAD/EMTDC. Simulation results show that the proposed topology and parameters design methods are correct and reasonable, and can effectively realize the double functions of voltage quality improvement and fault current limiting. Thus, it can ensure the security and stability of power system.关键词
短路故障/动态电压恢复器/限流器/LC滤波器/串联变压器Key words
short-circuit fault/dynamic voltage restorer/fault current limiter/LC filter/series transformer分类
信息技术与安全科学引用本文复制引用
唐君华,涂春鸣,姜飞,刘子维,郭成,帅智康..限流式动态电压恢复器及其参数设计[J].电力系统保护与控制,2015,(24):115-121,7.基金项目
国家自然科学基金项目(51377051) (51377051)