Failure Mode Analysis and Protection of Non-Regenerative Three-level Boost Rectifier

@article{Lai2009FailureMA,
  title={Failure Mode Analysis and Protection of Non-Regenerative Three-level Boost Rectifier},
  author={Rixin Lai and Fred Wang and Fang Luo and Rolando Burgos and Dushan Boroyevich},
  journal={2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition},
  year={2009},
  pages={1886-1891}
}
This paper identifies a new fault type of non-regenerative three-level boost rectifiers (Vienna-type rectifiers), namely the dc-link voltage-doubling fault. Under this failure mode, the voltage across the dc-link capacitors is doubled when any of the ac switches in the neutral path of the converter is shorted, a unique behavior of three-level neutral-point clamped topologies. Addressing this, two types of protection methods are proposed, discussed and analyzed in this paper, the voltage… CONTINUE READING