Gas turbine generators are commonly used in isolated operation. These generators may become unstable under severe load fluctuations. To maintain system stability an effective design and control is required. Ziegler-Nichols' method (ZN) and performance index method have been used to design PID controller. Genetic algorithm (GA) is used for finding out the optimal gain values of PID controller. The results show that GA tuned PID controller provides optimal time domain performance of the system.
Dr. Balamurugan S., R Joseph Xavier, and A Ebenezer Jeyakumar, “Application of Genetic Algorithm in Optimal PID Tuning for Heavy Duty Gas Turbine Plant”, Journal of Electrical Systems, vol. 4, p. p33, 2008.