The Optimal Economic Solution with UPFC, for a Large Size Industrial Plant

The Flexible Alternating Current Transmission System (FACTS) devices have opened new doors for controlling the power flow over the transmission line and to enhance the usable capacity of an existing power system. Unified Power Flow Controller (UPFC) is a versatile device which can independently control the line voltage and active and reactive power flow on the transmission line. This research shows that a UPFC is able to control both the transmitted real power and, independently, the reactive power flows at the sending and the receiving end of the transmission line. The UPFC model is applied to an existing large size power plant, installed on a 132 kV transmission line. The main objectives are to control active and reactive power flow and to minimize the power losses thus improving the overall economics of the system. MATLAB/Simulink has been utilized for simulations. The results show a considerable saving in the operation of the plan