Abstract

Voltage stability is the capability of the power system to preserve the system under stable condition even exposed to small disturbances under normal or slightly over loaded conditions. Maintaining voltage stability is the one of the major factor for power system networks. In this chapter voltage stability has been examined by using Flexible Alternating Current Transmission System (FACTS) devices. These devices enhance the stability of the system. With proper generation reallocation, further enhance the stability of the system. It can be achieved by using latest swarm intelligence algorithm technique called Brain Storm Optimization (BSO) algorithm. Results attained by BSO are related to that attained by Genetic Algorithm (GA) in both without and with FACTS conditions. These results show that BSO produce better results compared to GA for solving optimal rescheduling of generators. The BSO algorithm based generation reallocation has been examined and tested on IEEE 30 bus system without and with FACTS devices.

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