期刊名称：International Journal of Electronics and Computer Science Engineering
电子版ISSN：2277-1956
出版年度：2013
卷号：2
期号：1
页码：112-117
出版社：Buldanshahr : IJECSE
摘要：Now a days, power quality is an important application. Sophisticated electronic equipments, variable speed drive having high efficiency, and power electronic controller, are used to improve power quality. Voltage sags are the most common power quality disturbance in the distribution system. It occurs due to the fault in the electrical network or by the starting of a large induction motor and this can be solved by using the custom power devices such as Dynamic Voltage Restorer (DVR). It is smaller in size, and provides fast dynamic response to the disturbance and also has lower cost. A multifunctional DVR is used here to improve the power quality with the help of Posicast and P+Resonant controllers to improve the transient response and eliminate the steady-state error. Simulation result shows the capability of the DVR to control the emergency conditions of the distribution systems
关键词：Dynamic Voltage Restorer (DVR); emergency control; voltage sag; voltage swell.
