RESTORATION OF SUDDEN VOLTAGE SAGS OF A SENSITIVE LOAD IN A REAL NETWORK USING DVR

DVR is the apparatus that connects in series to the network and via injecting voltage into the system, regulates the load. This tool has capability of producing and absorbing active and reactive power. The DVR, usually places between sensitive load source and feeders in distribution system and its main task is quick strengthening of the voltage in load direction when abrupt changes occur. In this paper, we will investigate the effect of using DVR to compensate voltage sags of a sensitive load in the distribution system of West Azerbaijan province by using Matlab/Simulink.