Parallel Open-Circuit Fault Diagnosis for Cascaded Full-Bridge NPC Inverter with Carrier Phase Shifted Modulation

• Published in: 2024 IEEE 7th International Electrical and Energy Conference (CIEEC) pp. 3681 - 3688
• Main Authors: Tao, Wanyu, Wei, Xinwei, Guo, Xinyu, Ren, Chunguang, Qin, Chen, Yang, Yugang, Zhao, Xiaodan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 10.05.2024
• Subjects: Capacitors; carrier phase shifting SPWM (CPS-SPWM); diagnosis method; Fault diagnosis; Insulated gate bipolar transistors; Inverters; neutral point clamped (NPC) inverter; open-circuit fault; parallel control; Phase modulation; Prototypes; Voltage

In this paper, a diagnosis method for open-circuit fault based on parallel operation structure is proposed for cascaded full-bridge neutral point clamped (NPC) inverter with carrier phase shifting SPWM (CPS-SPWM), which has small calculation and short diagnosis time. Multiple faulty devices with ope...