An Equivalent-control Quantization Sliding Mode Controller for a Buck Converter

DOI

10.2991/ammee-17.2017.65How to use a DOI?

Keywords

equivalent-control, quantizer, sliding mode voltage control, DC/DC power system.

Abstract

This paper studies the DC-DC buck converter response controlled by two second-order single-input control techniques: equivalent-control quantization sliding mode voltage control (QSMVC) and general sliding mode voltage control (SMVC). Simulations illustrate the behaviors of the equivalent-control based SMVC system under uniform and logarithmic quantized state feedback. The output voltage and inductor current of both models were studied and compared under normal conditions, load step change, load linear variation, and input voltage step change. It shows that the equivalent-control QSMVC system performs better than the general SMVC system in terms of robustness and stability. The equivalent-control QSMVC system prevents the sliding mode controller from operating at a frequency that is too high for the power switch to respond. Also, by setting the value of quantization parameters the output voltage value can be greater than 5.999V with less than 0.17% deviation from 6V.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qianqian Li
AU  - Peter Liu
AU  - Yisong Wang
PY  - 2017/06
DA  - 2017/06
TI  - An Equivalent-control Quantization Sliding Mode Controller for a Buck Converter
BT  - Proceedings of the Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017)
PB  - Atlantis Press
SP  - 340
EP  - 350
SN  - 2352-5401
UR  - https://doi.org/10.2991/ammee-17.2017.65
DO  - 10.2991/ammee-17.2017.65
ID  - Li2017/06
ER  -