Analysis of Boundary Control for Buck Converters With Instantaneous Constant-Power Loads

  title={Analysis of Boundary Control for Buck Converters With Instantaneous Constant-Power Loads},
  author={C. N. Onwuchekwa and A. Kwasinski},
  journal={IEEE Transactions on Power Electronics},
  • C. N. Onwuchekwa, A. Kwasinski
  • Published 2010
  • Engineering
  • IEEE Transactions on Power Electronics
  • This paper examines a boundary control for dc-dc buck converters subject to instantaneous constant-power loads. These loads introduce a destabilizing nonlinear effect on the converter through an inverse voltage term that leads to significant oscillations in the main bus voltage or its collapse. Converter dynamics are analyzed in both switching states and the various operating regions of switch interaction with a first-order switching surface (boundary) are identified. Furthermore, sufficient… CONTINUE READING
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