Investigation of Transmission Lines Voltage Regulation by Installing STATCOM.

The Static synchronous compensator (STATCOM) is a shunt connected voltage source converter (VSC) based FACTS controller employed for reactive power control. SVC and STATCOM are members of FACTS family that are connected in shunt with the system. This paper describes the independent control of real and reactive power flow through a transmission line by using the d-q (direct axis-quadrature axis) control strategy. In this paper, principle of operation and the impact of (STATCOM) on midpoint voltage regulation are analyzed. Finally, the performance of the STATCOM is compared with static var compensator (SVC) under fault condition. Simulations are carried out in Matlab/Simulink environment and Simulation results show that STATCOM is effective in midpoint voltage regulation on transmission line. [ABSTRACT FROM AUTHOR]