Title

High Efficiency Dual-Mode Current Modulation Method for Low-Power DC/AC Inverters

Authors

Authors

A. Amirahmadi; L. Chen; U. Somani; H. B. Hu; N. Kutkut;I. Bartarseh

Comments

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

Abbreviated Journal Title

IEEE Trans. Power Electron.

Keywords

BCM; current modulation; three-phase microinverter; ZVS; Engineering, Electrical & Electronic

Abstract

Boundary conduction mode (BCM) zero voltage switching (ZVS) current control is a promising soft switching method for microinverter applications. In this letter, different BCM ZVS current control modulation schemes are compared based on power losses breakdown, switching frequency range, and current quality. Compared to continuous conduction mode current control, BCM ZVS control decreases MOSFET switching losses and filter inductor conduction losses but increases MOSFET conduction losses and inductor core losses. Based on the loss analysis, a dual-mode current modulation method combining ZVS and zero current switching schemes is proposed to improve the efficiency of the microinverter. The experimental results show that by using this proposed current modulation scheme, higher efficiency of 0.5% can be achieved with no additional cost for a 400-W three-phase microinverter.

Journal Title

Ieee Transactions on Power Electronics

Volume

29

Issue/Number

6

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

2638

Last Page

2642

WOS Identifier

WOS:000331554000003

ISSN

0885-8993

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