Abstract:
Voltage is mainly controlled by controlling reactive power flow through the transmission line. The flow of reactive power is controlled by means of reactive power compensation (supplying or absorbing).
Conventional methods for this compensation are excitation control, saturated reactor , tap changing transformers, series capacitors, shunt reactors, synchronous condensers and shunt capacitors. Here a fast step less variable method for reactive power compensation known as static var system (SVS) is discussed as a new method.
The construction, performance, control system , application and mathematical model of SVS are discussed. Never-the-less , static var compensator for a low voltage distribution system in Port-Sudan area is reviewed .
