Development of generalized unified power flow controller (GUPFC) detailed model with a comparison with multi-UPFC

Abstract

Unified power flow controller (UPFC) is a unique type FACTS device which is able to regulate power system parameters such as active and reactive power along with voltage magnitude and phase angle. In restructured power system, use of multi-machine systems increasing exponentially. In such systems, there is a need of control of parameters of more than one line. In such situation, multiple Unified power flow controllers (M-UPFCs) is used to achieve these power system requirements. A modified form of UPFC which is known as generalized unified power flow controller (GUPFC) is also used to control the power system parameters for more than one bus or even a subsystem. This paper envelops a innovative approach based on voltage source converter is used for the designing of detailed model of GUPFC in MATLAB/Simulink. A detailed comparison is done between a detailed GUPFC model and M-UPFC for power flow control (active power, reactive power and voltage). The simulation results the superiority of GUPFC over M-UPFC. This paper states first time designing of the detailed model of GUPFC in MATLAB/Simulink.