Particle Swarm Optimization Based Self-tuned PID Controller for Digital Excitation Control System

Abstract

The synchronous generator excitation control system is the essential equipment for operation and control of generator and power supply. Conventionally, an excitation system was used exclusively for supplying field current to field coil and be responsible for only steady-state stability. If sufficient synchronizing torque is not provided during the operation, transient instability occurs in the synchronous generator. This can be controlled by using an exciting system with fast response and adequate forcing power. To overcome this issue, digital controllers are to be used. Many researches have been done on utilizing the transient response stabilization of generators. This chapter introduces an approach for tuning PID parameters for controlling the excitation control system. The PID parameters are adjusted using the particle swarm optimization technique.KeywordsGenerator excitationTuning of PID controllerTransient stabilityParticle swarm optimization