Voltage Regulation and Power Loss Minimization by Using Unified Power Flow Control Device

摘要

The operation and growth of interconnected power systems has given rise to many complexities. The power transfer capabilities are becoming limited day by day. It has become important to develop the strategies to cope with such problems and utilize transmission systems at their maximum thermal capacity. This thesis presents SIMULINK model of Unified Power Flow Controller (UPFC) device to analyze the operation of single and double line transmission systems of 132/220kV. UPFC model is a very important member of family of Flexible AC Transmission System (FACTS) devices. It is a microcontroller based solid state converter capable of controlling active and reactive power in transmission line and controls power flow and real power loss. This work will reveal the effects of installing UPFC model for single and double transmission line in MATLAB/Simulink to observe voltage regulation, power loss minimization and improvement in power transfer capability. Simulation results of three cases for single and double line transmission systems with and without UPFC device are examined in this work to observe the effects of installing this device in power system.