An Efficient Algorithm for Voltage Enhancement in Power System

In this paper, voltage stability of electrical power system has been analyzed. Excessive reactive power demand by load in network causes congestion as well as voltage instability. This paper utilized Power System Analysis Toolbox (PSAT) for analysis of network without application of FACTS devices and with FACTS device. FACTs devices are used to maintain the flexible and dynamic control of the power system. Application of FACTS devices in network helps in reducing losses of the network, consequently in congestion management with voltage stability improvement of power system. Out of many possible FACTS devices, the feature of UPFC provides better control the true power line impedance, power quality, reactive power and phase angle and rearrange the real time voltage in transmission line. A 6-bus network is used for illustration of the proposed method. Experimental result shows significant improvement in terms of losses and voltage stability and further helps in congestion management of network.