Title

Hybrid ZVS BCM Current Controlled Three-Phase Microinverter

Authors

Authors

A. Amirahmadi; H. B. Hu; A. Grishina; Q. Zhang; L. Chen; U. Somani;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

Boundary conduction mode (BCM) modulation; three-phase microinverter; zero-voltage switching (ZVS); RESONANT DC-LINK; ZERO-CURRENT; TRANSITION INVERTER; AUXILIARY SWITCHES; EMI REDUCTION; MODULATION; CONVERTERS; Engineering, Electrical & Electronic

Abstract

This paper presents a new zero-voltage switching (ZVS) control method that is suitable for low-power applications such as three-phase microinverters. The proposed hybrid control method increases the efficiency and power density of the microinverters and features both reduced number of components and easy digital implementation. ZVS is achieved by controlling the inductor current bidirectional in every switching cycle and results in lower switching losses, higher operating frequency, and reduced size and cost of passive components, especially magnetic cores. A 400 W prototype of a three-phase inverter and its hybrid control system have been designed and tested under different conditions to verify the effectiveness of the controller. Efficiency measurement and comparison of the three different current modulation schemes have been conducted, and the inverter exhibits peak efficiency of 98.4% with fixed reverse current boundary conduction mode modulation.

Journal Title

Ieee Transactions on Power Electronics

Volume

29

Issue/Number

4

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

2124

Last Page

2134

WOS Identifier

WOS:000329990500055

ISSN

0885-8993

Share

COinS