Enhancing the Power System Loadability Using STATCOM Device

In the current power system much concentration is given to the efficient transmission of power from generator side to load end with minimum power loss. To achieve this, the newly introduced FACTS technology is being used. FACTS device such as STATCOM (static synchronous compensator) is used in this paper, for the efficient power transfer between transmission lines. To enhance the loadability of transmission lines an adaptive search algorithm called Improved Gravitational Search Algorithm (IGSA) is proposed. In the proposed approach the velocity of each agent is improved. If the agents' velocity is at maximum only then the optimum solution is obtained. In IGSA maximum power loss of the system is used as fitness function to improve the maximum power transfer capability. The proposed algorithm is implemented on IEEE 57 bus test system using MATLAB platform and the maximum power transferred is evaluated using STATCOM device. The results using IGSA are compared with traditional GSA.