Passivity-Based Control of Buck Converters with Constant-Power Loads

  title={Passivity-Based Control of Buck Converters with Constant-Power Loads},
  author={Alexis Kwasinski and P. T. Krein},
  journal={2007 IEEE Power Electronics Specialists Conference},
This paper studies the control of buck converters subjected to constant-power loads using a passivity-based technique. This technique allows for global analysis and avoids the limitations present in small-signal-based techniques. Passivity-based control in this application leads to a systematic derivation of a linear proportional-differential controller. It is also proved that the equilibrium point is only locally stable due to the infeasibility of duty ratio values larger than unity. The paper… CONTINUE READING
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