LOAD FLOW OF INTER-CONNECTED POWER SYSTEM INCLUDING FACT CONTROLLER

Abstract

The demand of the electrical energy is ever increasing and it is desired to use the existing transmission network to its thermal stability limits. The transmission capacity can be increased by the compensation at appropriate locations. The reactive power compensation plays an important role in the planning of power system. This ensures a satisfactory voltage profile and a reduction in power and energy losses within the system. Reactive power also maximizes the real power transmission capability of transmission lines, while minimizing the cost of compensation. In this thesis, the reactive compensation of power system is attempted using the STATCOM. The effect of these devices on power flows and bus voltage profile has been studied by placing at random location. STATCOM is used to compensate reactive power and thus to maintain voltage magnitude at 1 p.u. Reactive power compensation is an important issue in powers system. The purpose of reactive power compensation is mainly to improve the voltage profile in the system and to minimize the power loss. This thesis contains load flow in 5-bus, IEEE-14 bus and IEEE-30 bus test system with and without using the STATCOM. Load flow in all the three test systems is done using Newton -Raphson Method. Data for the load flow analysis of five bus system and STATCOM data have been taken from “FACTS Modelling and Simulation in Power Networks” by Enrique Acha. For Load Flow analysis of IEEE-14 bus system data have been taken from online resources of Washington University. For Load Flow analysis of IEEE-30 bus system data have been taken from “Power System Analysis” by Hadi Saadat. Software used: MATLAB 7.6.0