Comparative Study of Different Passivity-Based Non-linear Control of DC-DC Boost Converter

Authors

Mitesh R. Gandhi, Sandhya Rathore

Abstract

The DC-DC boost converter has a non-linear characteristic and the control-to-output transfer function of the linearised model exhibits a non-minimum phase system with a right-half-plane (RHP) zero. The consequence of this zero is a sluggish response of the converter and it’s difficult to design a controller that is robust against load variation. In this work, we present a non-linear passivity-based control (PBC) algorithm to regulate the output voltage of the DC-DC boost converter. This controller works on the principle of an ‘energy shaping plus damping injection’, which is obtained from non-linear dynamical feedback. The non-linear DC-DC boost converter is modeled by using Euler-Lagrange, Port-controlled Hamiltonian and Brayton-Moser equations. These different classical mechanics based controller’s design and their simulation results of input-output variables are compared under reference step changes and load perturbations in MATLAB/Simulink.

Citation

• Journal: 2019 Innovations in Power and Advanced Computing Technologies (i-PACT)
• Year: 2019
• Volume:
• Issue:
• Pages: 1–7
• Publisher: IEEE
• DOI: 10.1109/i-pact44901.2019.8960007

BibTeX

@inproceedings{Gandhi_2019,
  title={{Comparative Study of Different Passivity-Based Non-linear Control of DC-DC Boost Converter}},
  DOI={10.1109/i-pact44901.2019.8960007},
  booktitle={{2019 Innovations in Power and Advanced Computing Technologies (i-PACT)}},
  publisher={IEEE},
  author={Gandhi, Mitesh R. and Rathore, Sandhya},
  year={2019},
  pages={1--7}
}

Download the bib file

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