Particle Swarm Optimization algorithm for voltage stability improvement using multiple STATCOM

Use of Flexible AC Transmission Systems (FACTS) for voltage stability improvement in power system has been well established. Optimization of various parameters so as to obtain improved voltage profile, minimal total system loss, minimal reactive power transfer and maximization of the stability limit have been achieved using various techniques. The present paper employs the Particle Swarm Optimization (PSO) to achieve optimized parameters as stated above by optimal sizing and allocating of a multiple Static synchronous Compensator (STATCOM) in a power system. The effectiveness of the proposed work is tested for IEEE-30 bus test system with multiple STATCOM devices. This paper provides the details of the results obtained using PSO on the IEEE-30 bus test system, using multiple STATCOM for voltage stability improvement under various load conditions.