“Design of a Propotional Resonant Controller With a Fractional Order PID for Improving Voltage Regulation in a Multi-Bus Microgrid System”. International Journal of Food and Nutritional Sciences 10, no. 4 (January 1, 2021): 672–682. Accessed July 17, 2026. https://www.ijfans.org/index.php/Journal/article/view/3523.