Kim, Kuk-Hyeon, Jin-Wook Park, Seong-Mi Park, and Sung-Jun Park. “Phase-Fast Estimation Algorithm Using PLL and Feed-Forward”. International Journal of Engineering & Technology 7, no. 4.39 (December 13, 2018): 6–9. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/23687.