A Decentralized Explicit Predictive Control Paradigm for Parallelized DC-DC Circuits

Author

Beccuti, A.G. ; Kvasnica, M. ; Papafotiou, G. ; Morari, M.

Author_Institution

Autom. Control Lab., ETH Zurich, Zurich, Switzerland

Volume

21

Issue

1

fYear

2013

Firstpage

136

Lastpage

148

Abstract

This paper extends previously introduced explicit optimal control methods for fixed frequency switched mode DC-DC converter circuits to the parallel synchronous step-down (i.e., buck) topology with N branches. Due to the computational complexity of modelling and controlling such potentially large multivariable systems a decentralized model predictive control scheme is employed allowing for the related optimal control problem to be efficiently formulated and solved offline for each local controller. Simulation results are provided to illustrate the outcome of the proposed approach.

Keywords

DC-DC power convertors; decentralised control; large-scale systems; multivariable systems; optimal control; power electronics; predictive control; switched networks; buck topology; computational complexity; decentralized explicit predictive control; fixed frequency switched mode DC-DC converter circuit; optimal control method; parallel synchronous step-down topology; parallelized DC-DC circuits; potentially large multivariable system; Inductors; Integrated circuit modeling; Legged locomotion; Mathematical model; Optimal control; Predictive control; Switches; DC-DC power converters; distributed control; explicit predictive control;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/TCST.2011.2178071

Filename

6142124