Reduced Switching-Frequency-Modulation Algorithm for High-Power Multilevel Inverters

  title={Reduced Switching-Frequency-Modulation Algorithm for High-Power Multilevel Inverters},
  author={Samir Kouro and Jaime Rebolledo and Jos{\'e} R. Rodriguez},
  journal={2005 IEEE 36th Power Electronics Specialists Conference},
Multilevel inverters have emerged as attractive high-power medium-voltage power-conversion systems. They are mainly controlled with high-frequency pulsewidth-modulation methods. This is not suitable for very high-power application due to significant switching losses. This paper presents an adaptive duty-cycle modulation algorithm that reduces the switching frequency to a minimum necessary to fulfill the dynamic requirements of the system. Switching losses are, therefore, strongly reduced. This… CONTINUE READING
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