Sliding-Mode Control Design of a Boost-Buck Switching Converter for AC Signal Generation
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
This paper presents a sliding-mode control design of a boost–buck switching converter for a voltage step-up dc–ac conversion without the use of any transformer. This approach combines the step-up/step-down conversion ratio capability of the converter with the robustness properties of sliding-mode control. The proposed control strategy is based on the design of two slidingcontrol laws, one ensuring the control of a full-bridge buck converter for proper dc–ac conversion, and the other one the control a boost converter for guaranteeing a global dc-to-ac voltage step-up ratio. A set of design criteria and a complete design procedure of the sliding-control laws are derived from small-signal analysis and large-signal considerations. The experimental results presented in the paper evidence both the achievement of step-up dc–ac conversion with good accuracy and robustness in front of input voltage and load perturbations, thus validating the proposed approach.
CitationBiel, D.; Guinjoan, F.; Fossas, E.; Chavarria, J. "Sliding-Mode Control Design of a Boost-Buck Switching Converter for AC Signal Generation". IEEE Transactions on Circuits and Systems I-Regular Papers, 2004, Vol. 51, No. 8, p. 1539-1551.