Modular-Cell Inverter Employing Reduced Flying Capacitors With Hybrid Phase-Shifted Carrier Phase-Disposition PWM

@article{Lim2015ModularCellIE,
  title={Modular-Cell Inverter Employing Reduced Flying Capacitors With Hybrid Phase-Shifted Carrier Phase-Disposition PWM},
  author={Ziyou Lim and Ali I. Maswood and Gabriel Heo Peng Ooi},
  journal={IEEE Transactions on Industrial Electronics},
  year={2015},
  volume={62},
  pages={4086-4095}
}
This paper proposes a new approach of modular-cell inverter with a reduced number of flying capacitors (RFCI) using hybrid carrier-based pulsewidth modulation (PWM) named as phase-shifted carrier phase-disposition PWM (PSC-PD-PWM). The novel multilevel inverter topology is designed by clamping a series of modular cell onto a low-operational-frequency cell. The proposed transformerless RFCI reduces significantly the component counts, cost, and size of the converter. The overall performances of… CONTINUE READING

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Key Quantitative Results

  • The harmonic analysis of proposed hybrid PSC-PD-PWM as discussed previously has proven that the overall switching frequency is greatly reduced by 50% while synthesizing the same number of output voltage levels.
  • In this paper, the overall switching frequency has been proven to be greatly reduced by 50% for the hybrid PSCPD-PWM scheme as compared with the classical PSC-PWM.

Citations

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