Title

Maximum efficiency point tracking (MEPT) method and digital dead time control implementation

Authors

Authors

J. A. Abu-Qahouq; M. Hong; H. J. Al-Atrash;I. Batarseh

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Trans. Power Electron.

Keywords

adaptive; converter; dead time; digital control; efficiency; isolated; maximum efficiency point tracking (MEPT) method; non-isolated tracking; Engineering, Electrical & Electronic

Abstract

An adaptive control method, to be called maximum efficiency point tracking (MEPT), is presented in this paper. This method tracks system efficiency, which is dc-dc converter efficiency in this paper, and adaptively optimizes system parameters to maximize efficiency. The MEPT method is used in this paper to optimize the primary-to-secondary switches' dead-time parameter in an isolated topology to reduce the switches' body diodes conduction during commutation periods and to reduce body diodes conduction and reverse-recovery related losses in order to improve efficiency. MEPT tracks converter efficiency while changing the dead-time and detects the optimized dead-time value at the maximum efficiency point at different load and line conditions. In this paper, the MEPT method is discussed and analyzed, and its digital control algorithm and experimental implementation are presented.

Journal Title

Ieee Transactions on Power Electronics

Volume

21

Issue/Number

5

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

1273

Last Page

1281

WOS Identifier

WOS:000240567400012

ISSN

0885-8993

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