Optimal Siting of FACTS Controller Using Moth Flame Optimization Technique

The increment of load demand leads to voltage instability which is a major concern nowadays. It is required to transmit power in a efficient and economic manner. This problem can be solved either by increasing the generation or by enhancing the transmission capacity. But, due to financial constraints, it is not possible for constructing new generating stations. So, to improve the efficiency of the existing system, flexible AC transmission system (FACTS) controllers are incorporated. Since these controllers are costly, proper analysis is required for its siting. In this paper, the moth flame optimization (MFO) algorithm is used for the proper siting of FACTS controllers. Here, the proposed technique is compared with particle swarm optimization (PSO) and biogeography-based optimization (BBO) technique applied on IEEE 30 bus system, and the superiority of the MFO technique is demonstrated for reducing the active power losses in the transmission lines.