A novel soft-switching grid-connected PV inverter and its implementation

Minjie Chen, Xutao Lee, Yoshihara Tsutomu

    研究成果: Conference contribution

    2 被引用数 (Scopus)

    抄録

    This paper proposes a novel soft-switching PV inverter formed by a ZVT-PWM boost converter, a ZVS-ZCS-PWM buck converter and a low frequency full-bridge inverter. The ZVT-PWM boost converter maintains the dc-bus voltage and provides an auxiliary current source for the soft-switching cell of the buck converter. The buck converter consists of a main switch and an auxiliary switch, with ZVS and ZCS features respectively, which generates a semi-sinusoidal current output. The semi-sinusoidal current is inverted into sinusoidal and fed to the utility grid by the low frequency full-bridge inverter. The overall efficiency is improved and the size is dramatically reduced due to high frequency operation. The operating principles are presented and the circuit is implemented to a 1000W prototype machine. The experimental results with a maximum overall efficiency up to 97% at 100 kHz, about 1.5%'s improvement compared to the hard-switching one, verify the proposal.

    本文言語English
    ホスト出版物のタイトルProceedings of the International Conference on Power Electronics and Drive Systems
    ページ373-378
    ページ数6
    DOI
    出版ステータスPublished - 2011
    イベント2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011 - Singapore
    継続期間: 2011 12 52011 12 8

    Other

    Other2011 IEEE 9th International Conference on Power Electronics and Drive Systems, PEDS 2011
    CitySingapore
    Period11/12/511/12/8

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    フィンガープリント 「A novel soft-switching grid-connected PV inverter and its implementation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル