Scholarlink

<p>A split-source dual-output two-stage matrix converter (SSDO-TSMC) is proposed to address the problems of the conventional two-stage matrix converter, which is not able to have dual outputs and has a low voltage transfer ratio. First, the topology of the proposed SSDO-TSMC is introduced. A zero-vector-free modulation strategy is applied to the rectifier stage of the SSDO-TSMC and an improved space vector pulse width modulation strategy is applied to the inverter stage in terms of the modulation strategy, which can remarkably improve the voltage transfer ratio. Second, a carrier-based pulse width modulation (CBPWM) strategy is proposed to optimize the switching modulation sequence of the inverter stage by fixing the discharging time of the inductor of the split-source network, which can be combined with the operating state of the dual-output inverter stage to derive a stable boost ratio. The modulating waveforms of the rectifier and inverter stages are deduced from the duty cycle and carrier waveform expressions. The proposed CBPWM strategy is easy to implement and only needs to use a symmetric triangular carrier to generate the pulse width modulation signals of the rectifier and inverter stages. Finally, the effectiveness of the topology and the improved modulation strategy proposed in this study is verified experimentally.</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

Split-source dual-output two-stage matrix converter and its modulation strategy

  • 期刊论文

  • 发表日期：

    2025年8月26日

查看全文
  • Rutian Wang,
  • Longjie Han,
  • Weiquan Wang,
  • Xiuyun Wang,
  • Hao Wang,
  • Shiyu Zhang

摘要

A split-source dual-output two-stage matrix converter (SSDO-TSMC) is proposed to address the problems of the conventional two-stage matrix converter, which is not able to have dual outputs and has a low voltage transfer ratio. First, the topology of the proposed SSDO-TSMC is introduced. A zero-vector-free modulation strategy is applied to the rectifier stage of the SSDO-TSMC and an improved space vector pulse width modulation strategy is applied to the inverter stage in terms of the modulation strategy, which can remarkably improve the voltage transfer ratio. Second, a carrier-based pulse width modulation (CBPWM) strategy is proposed to optimize the switching modulation sequence of the inverter stage by fixing the discharging time of the inductor of the split-source network, which can be combined with the operating state of the dual-output inverter stage to derive a stable boost ratio. The modulating waveforms of the rectifier and inverter stages are deduced from the duty cycle and carrier waveform expressions. The proposed CBPWM strategy is easy to implement and only needs to use a symmetric triangular carrier to generate the pulse width modulation signals of the rectifier and inverter stages. Finally, the effectiveness of the topology and the improved modulation strategy proposed in this study is verified experimentally.