Power loss Reduction & Enhancement of power transfer capability with STATCOM & TCSC using Sensitivity Analysis

Abstract

Due to increasing load in the modern power systems, transmission and distribution of power is becoming problematic due to issues related to power flow, system stability, efficiency of transmission, etc. By controlling the parameters like line impedance, voltage magnitude and phase angle, the power flow can be optimized till a certain extent. For utilization of a power transmission network effectively, FACTS devices need to be placed in an optimal position. Static Synchronous Compensator (STATCOM) and Thyrister Controlled Series Compensator (TCSC) are devices when positioned in the suitable bus resulting in increased stability, increased load-ability and minimization of losses. An IEEE 5 bus system has been used to test for the optimal location of these devices and a comparative study has been done to determine the most efficient device. The comparative study is done with respect to the minimization of real power flows, total reactive power loss and total real power loss based upon sensitivity indices of the lines. The method has been described elaborately further.