restorer (DVR), shunt connected compensator such as distribution static compensator (DSTATCOM), and a combination of series and shuntconnected compensators known as unified power quality conditioner (UPQC) [2, 4-6]. The series connected compensator c

restorer (DVR), shunt connected compensator such as distribution static compensator (DSTATCOM), and a combination of series and shuntconnected compensators known as unified power quality conditio

The technologies like custom power devices are emerged to provide protection against power quality problems. Custom power devices are mainly of three categories such as series-connected compensator like dynamic voltage restorer (DVR), shunt connecte