PI–Controlled Shunt Active Power Filter for Effective Elimination of Harmonics in Transmission System Based on PQ Theory. Int. J. Curr. Eng. Technol. [Internet]. 2015 Apr. 30 [cited 2026 Apr. 11];5(2):673-80. Available from: https://ijcet.evegenis.org/index.php/ijcet/article/view/2015