Performance improvement of power system through Static VAR Compensator using sensitivity indices analysis method

Abstract

Day by day, due to increase in load, modern power system becomes very complex in nature, due to this power system faced with problem like; power flow, system stability, system security etc. Now it is well known that power transmission and distribution is become big problem. The power flow through transmission line is a function of line impedance, magnitude and phase angle. If these parameters can be controlled, the power flow through the transmission line can be controlled in a predetermined manner. This problem can be overcome by the used of Flexible AC Transmission System (FACTS) devices, their primary application is to enhance power transfer capabilities, power system stability and allow more flexible control of power flow. Here the FACTS device used is Static VAR Compensator (SVC). But for efficient operation of SVC, the optimal placement of SVC is essential and this difficulty can be sort out with the use of sensitivity indices analysis method. Here reduction of total system reactive power loss sensitivity indices method is implemented. IEEE-14 bus system is used here for the study purpose. To determine sensitivity indices for proposed method `MATLAB' software is used here.