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

    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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