Abstract
This work addresses the utilization of a two degree of freedom tilt-integral-derivative controller with fractional derivative (2DOF-TID <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">μ</sup> ) and filter tuned by the coot optimization algorithm in two interconnected microgrids for voltage and frequency regulation. The microgrids are consisting of a biomass combined heat and power, biodiesel generator, micro-hydro turbine generator and biogas turbine generator along with RES, a battery and superconducting energy storage system. The study aims to present an appropriate controller for the frequency and voltage control of interconnected microgrids which could be remote communities and/or farms. The controller is compared with the 2DOF-PID and 2DOF-TID controllers. The results conclude that the 2DOF-TID <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">μ</sup> controller attains better transient response in the absence of RES and under the nearness of wind and solar generation is better in minimizing the deviations compared to the other controllers.
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