Frequency Stability Enhancement of Wind Integrated Power System with TCSC

Abstract

Managing power system's frequency within allowable limits is a difficult challenge in the context of high wind penetration and generation uncertainty. This article provides a cascade controller based on a fractional-order integrated derivative (FOID) proportional integral derivative (PID) to improve the stability of the frequency of a wind integrated electric system. The effectiveness provided by the FOID-PID controller is evaluated using a large quantity of wind energy generation changes and compared with the PID controller to extract the benefits of the cascade controller. Additionally, the impact of the thyristor-controlled series capacitor(TCSC) is investigated. To achieve the goal of automatic generation control (AGC), the secondary controllers (PID/FOID-PID) optimal gain parameters are identified with zebra optimization technique (ZOA). To determine the controller gains, the integral absolute time error function is employed as the problem's cost function. The investigations are carried out in MATLAB SIMULINK.