Multivariable adaptive efficiency optimization digital controller

Author

Al-Hoor, Wisam ; Abu-Qahouq, Jaber ; Huang, Lilly ; Ianello, Chris ; Mikhael, Wasfy ; Batarseh, Issa

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL

fYear

2008

fDate

15-19 June 2008

Firstpage

4590

Lastpage

4596

Abstract

A multivariable adaptive digital controller to optimize DC-DC converter switching frequency and dead- time at the same time, for maximum efficiency under variable conditions, is presented in this paper. The multivariable adaptive digital controller (MVAC) adaptively adjusts the DC-DC converter switching frequency and dead-time while tracking the converter minimum input power (maximum efficiency) point under variable conditions including variable load and variable input voltage. In this paper, the MVAC method is discussed analyzed and its digital control algorithm and experimental results are presented.

Keywords

DC-DC power convertors; power system control; DC-DC converter switching frequency; digital control algorithm; multivariable adaptive digital controller; Adaptive control; Control systems; DC-DC power converters; Digital control; Digital-to-frequency converters; Diodes; Programmable control; Switching converters; Switching frequency; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592689

Filename

4592689