K. Srujan, Dr. S. Shiva Prasad, & Vinod Kumar. (2015). A Three Phase UPS Systems Operating Under Nonlinear Loads with Modified SPWM Controller. International Journal of Advance Engineering and Research Development (IJAERD), 2(9), 70–76. Retrieved from https://ijaerd.org/index.php/IJAERD/article/view/1018