Sliding Mode Control Based on Internal Model for a Non-minimum phase Buck and Boost Converter

Authors

  • Byron Cajamarca Escuela Politécnica Nacional
  • Oscar Camacho Escuela Politécnica Nacional
  • Danilo Chávez Escuela Politécnica Nacional
  • Paulo Leica Escuela Politécnica Nacional
  • Marcelo Pozo Escuela Politécnica Nacional

DOI:

https://doi.org/10.29019/enfoqueute.v10n1.442

Keywords:

Buck-Boost; non-minimum phase system; internal model control; sliding mode control; chattering.

Abstract

This work presents the application of different schemes to control a non-minimum phase Buck-Boost converter. Three control schemes are used. The first controller presented is a PI controller, the second one is Sliding Mode Control and the third one is a combination of two control schemes, Internal Model Control and Sliding Mode Control. The controllers are designed from a Right-Half Plane Zero (RHPZ) reduced order model. The RHPZ model is converted, using Taylor approximation, in a First Order Plus Dead Time (FOPDT) model and after that, the controllers are obtained. The performance of the SMC-IMC is compared against to a PI controller and a SMC. The simulation results show that SMC-IMC improves the converter response, reducing the chattering and presenting better robustness for load changes

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References

Al-Hadithi B.M., Barragan A.J., Andujar J.M. and Jimenez A. (2016). Chattering-free variable control structure for multivariable nonlinear systems. Elsevier Science Publisher B.V, vol 39, Netherlands, 165-187.
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Published

2019-03-29 — Updated on 2019-03-29

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How to Cite

Cajamarca, B., Camacho, O., Chávez, D., Leica, P., & Pozo, M. (2019). Sliding Mode Control Based on Internal Model for a Non-minimum phase Buck and Boost Converter. Enfoque UTE, 10(1), pp. 41 – 53. https://doi.org/10.29019/enfoqueute.v10n1.442

Issue

Vol. 10 No. 1 (2019)

Section

Automation and Control, Mechatronics, Electromechanics, Automotive

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Copyright (c) 2019 Enfoque UTE

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