H∞LPV Control with Pole Placement Constraints for Synchronous Buck Converters with Piecewise-Constant Loads

Author:

Joo Hwanyub1ORCID,Kim Sung Hyun1ORCID

Affiliation:

1. School of Electrical Engineering, University of Ulsan (UOU), Ulsan 680-749, Republic of Korea

Abstract

This paper addresses the output regulation problem of synchronous buck converters with piecewise-constant load fluctuations via linear parameter varying (LPV) control scheme. To this end, an output-error state-space model is first derived in the form of LPV systems so that it can involve a mismatch error that temporally arises from the process of generating a feedforward control. Then, to attenuate the mismatch error in parallel with improving the transient behavior of the converter, this paper proposes an LMI-based stabilization condition capable of achieving bothHand pole-placement objectives. Finally, the simulation and experimental results are provided to show the validity of our approach.

Funder

National Research Foundation of Korea

Publisher

Hindawi Limited

Subject

General Engineering,General Mathematics

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