Band-limited three-level modulation for balancing capacitor voltages in neutral-point-clamped converters

• Main Authors: Beniwal, Neha, Townsend, Christopher David, Farivar, Glen Ghias, Pou, Josep, Ceballos, Salvador, Dehghani Tafti, Hossein
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Carrier-based Pulsewidth Modulation (CBPWM); Low-frequency Neutral-point Voltage Ripple
• Online Access: https://hdl.handle.net/10356/139660
• Institution: Nanyang Technological University

In this paper, a band-limited three-level modulation scheme is proposed for a three-phase neutral-point-clamped (NPC) converter with an aim to balance the average capacitor voltages under all operating conditions. When conventional carrier-based pulsewidth modulation is applied, the amplitude of neu...