Comparison of two control algorithms for forward DC-DC converters

Author

Liu Jia ; Shen Yeye ; Li Xiuliang ; Su Hongye ; Chen Jian

Author_Institution

Dept. of Control Sci. & Eng., Zhejiang Univ., Hangzhou, China

fYear

2014

fDate

28-30 July 2014

Firstpage

7054

Lastpage

7059

Abstract

In this paper, we provide the comparison of a feedback compensation control and an explicit model predictive control (MPC), which are the popular control algorithms for the DC-DC converter in industry. We develop a small-signal equivalent circuit model for forward DC-DC converters, with the model a feedback compensation controller is designed. Then based on a discrete-time hybrid model we propose an explicit MPC, which enables the large number of optimization effort to be completed off-line. The control law is stored and implemented in a lookup table. Simulation results demonstrate the advantages and disadvantages of the two control algorithms.

Keywords

DC-DC power convertors; compensation; control system synthesis; discrete time systems; equivalent circuits; feedback; optimisation; predictive control; table lookup; MPC; discrete-time hybrid model; explicit model predictive control; feedback compensation control; forward dc-dc converters; lookup table; optimization effort; small-signal equivalent circuit model; DC-DC power converters; Inductors; Integrated circuit modeling; Load modeling; Resistance; Switches; Voltage control; DC-DC Converter; Explicit Model Predictive Control; Feedback Compensation Control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2014 33rd Chinese

Conference_Location

Nanjing

Type

conf

DOI

10.1109/ChiCC.2014.6896164

Filename

6896164