ITAE Index Based Control Design Strategy to Mitigate Frequency Deviation of Renewable Integrated Islanded-Microgrid

This work addresses the frequency stability issue of microgrids and eliminates frequency errors by incorporating a proportional-integral-derivative (PID) controller. PID controller mitigates frequency error by deriving controller gains with the help of integral time absolute error (ITAE) index as a key design criterion. To validate controller efficacy, various analyses are conducted. The results indicate that ITAE assisted-PID controller achieves good settling time, rise time, and requires minimum controller magnitude. The ITAE-PID controller provides a better frequency response of considered microgrid model.