Scholarlink

<p>Traditional multi-level inverters are less reliable in real-world applications due to their complex design, higher component counts and decreased fault-tolerant capacity. In addition, present fault-tolerant inverter topologies offer less efficiency under faulty cases and need a greater number of switches. This study suggests a unique fault-tolerant five-level inverter (FT5LI) that can mitigate single- and multiple-switch open-circuit failures while preserving optimal performance in order to overcome these restrictions. By integrating a redundant switch unit into the main circuit, the suggested design allows for fault-tolerant operation without affecting output power. The proposed topology offers a significant advancement in fault-tolerant inverter design, improved power quality, voltage balancing and enhanced efficiency compared to conventional multi-level inverters. A conventional level-shifted pulse-width modulation technique is used to generate to gate pulses in both healthy and faulty modes of operation in the proposed inverter. It validates the FT5LI’s robustness against various fault scenarios. A detailed comparative analysis demonstrates its advantages over existing topologies, particularly in terms of efficiency (98.43%), reduced power loss and a minimal switch count (9). The inverter also exhibits improved harmonic performance, with a current total harmonic distortion of 1.98% under rated load conditions. Furthermore, a level-to-switch ratio of the FT5LI is of 0.5 which confirms its superiority compared to other fault-tolerant converters.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

An ameliorated single-phase five-level multi-switch fault-tolerant inverter with reduced number of switches

  • 期刊论文

  • 发表日期：

    2025年6月11日

查看全文
  • Sridhar Patthi,
  • Guruvulu Naidu Ponnada,
  • Obulesu Dakka,
  • Ruttala Srinu,
  • Parveen Kumar,
  • Sairaj Arandhakar

摘要

Traditional multi-level inverters are less reliable in real-world applications due to their complex design, higher component counts and decreased fault-tolerant capacity. In addition, present fault-tolerant inverter topologies offer less efficiency under faulty cases and need a greater number of switches. This study suggests a unique fault-tolerant five-level inverter (FT5LI) that can mitigate single- and multiple-switch open-circuit failures while preserving optimal performance in order to overcome these restrictions. By integrating a redundant switch unit into the main circuit, the suggested design allows for fault-tolerant operation without affecting output power. The proposed topology offers a significant advancement in fault-tolerant inverter design, improved power quality, voltage balancing and enhanced efficiency compared to conventional multi-level inverters. A conventional level-shifted pulse-width modulation technique is used to generate to gate pulses in both healthy and faulty modes of operation in the proposed inverter. It validates the FT5LI’s robustness against various fault scenarios. A detailed comparative analysis demonstrates its advantages over existing topologies, particularly in terms of efficiency (98.43%), reduced power loss and a minimal switch count (9). The inverter also exhibits improved harmonic performance, with a current total harmonic distortion of 1.98% under rated load conditions. Furthermore, a level-to-switch ratio of the FT5LI is of 0.5 which confirms its superiority compared to other fault-tolerant converters.