Integrated Gate Commutated Thyristor based Dynamic VoItage Restorer INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY August 18-21 1998, Beijing - China

Voltage sags mitigation in distribution networks plays an important role in the improvement of power supply quality. Dynamic Voltage Restorers (DVR), when installed between the supply and a critical load feeder, can compensate for voltage sags within 2-3 milliseconds. This paper presents the technical considerations and design techniques of the first Integrated Gate Commutated Thyristor (IGCT) based DVR in a voltage sag mitigation application for a sensitive semiconductor manufacturing facility.