Load Frequency Control in Power Systems Using Improved Particle Swarm Optimization Algorithm

Abstract

The purpose of load frequency control is to reduce transient oscillation frequencies than its nominal value<br />and achieve zero steady-state error for it.A common technique used in real applications is to use the<br />proportional integral controller (PI). But this controller has a longer settling time and a lot of Extra<br />mutation in output response of system so it required that the parameters be adjusted as appropriate . In this<br />paper, we aim to design a system based on PI controllers using improved particle swarm optimization<br />algorithm for load frequency control .Multi-population approach and local search to improve the<br />optimization algorithms is used and displayed. That this approach will lead to accelerating the achievement<br />of results, preventing entrapment in a local minimum, and get better system output compared with similar<br />methods.