Pham , Dang Khoa, and Van Nho Nguyen. 2018. “Pulse-Width Modulation Strategy for Common Mode Voltage Elimination in Three-Level Neutral Point Clamped Inverters With Reduced Common Mode Voltage Spikes”. Journal of Technical Education Science 13 (5):41-50. https://www.jte.edu.vn/index.php/jte/article/view/277.