Improved DPWM modulation for reducing switching losses in cascaded H-bridge multilevel inverters

• Published in: JOURNAL OF POWER ELECTRONICS Vol. 25; no. 1; pp. 46 - 57
• Main Authors: Ye, Manyuan, Li, Hao, Yao, Jiaxin
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.01.2025; 전력전자학회
• Subjects: Electrical Machines and Networks; Engineering; Original Article; Power Electronics; 전기공학; CHB multilevel inverter; Power balance; Inverter reliability; Switching loss; Modulation strategy

The switching loss of the traditional DPWM method is large. Therefore, this paper improves the traditional DPWM method by adding a clamping interval to reduce the switching loss. The traditional method is also improved using a modulating waveform spatial reorganization method to improve the modulati...