Best Power Surge Using Fuzzy Controlled Genetic Technique

Abstract

This paper presents a novel method for optimal location of FACTS controllers in a multi machine power system using Fuzzy Controlled Genetic Algorithm (FCGA). Using the proposed method, the location of FACTS controller, their type and rated values are optimized simultaneously. Among the various FACTS controllers, Thyristor Controlled Series Compensator (TCSC) and Unified power Flow Controller (UPFC) are considered. The proposed algorithm is an effective method for finding the optimal choice and location of FACTS controller and also in minimizing the overall system cost, which comprises of generation cost and investment cost of FACTS controller using Genetic Algorithm, Fuzzy Logic and conventional NR power flow method. Optimal Power Flow (OPF) is one of the most important processes in power system, which improves the performance of system by satisfying certain constraints. There are so many methods were used in the literature to solve the OPF problem. Furthermore, to solve the OPF problems, several heuristic algorithms such as evolutionary programming (EP), Tabu Search (TS), Hybrid Tabu Search and Simulated Annealing (TS/SA), Improved Tabu Search (ITS) and Improved Evolutionary Programming (IEP) have been already proposed. In this paper IEEE standard 14 & 30 bus systems taken as the reference bus systems to obtain the optimal solution. Here various FACTS devices (SVC, TCVR) were incorporated to obtain the feasible solution of OPF Problem. Simulation results shown that the obtained output is feasible and most accurate solution in the OPF solution. FACTS devices can direct the active and reactive power control and flexible to voltage-magnitude control simultaneously, because of their adaptability and fast control characteristics. With the aid of FACTS technology, namely Static Var Compensator (SVC), Thyristor Switched Capacitor Variable Reactor (TCVR) and Unified Power Flow Controller (UPFC) etc., the bus voltages, line impedances and phase angles in the power system can be controlled quickly and flexibly. In my paper IEEE standard 14 & 30 bus systems were taken for obtaining optimum solution. Index Terms: OPF, EP, TS, SA, ITS, IEP, TCVR, FACTS controller,SVC, UPFC