An Efficient Grid-Connected Three-Phase Single-Stage Boost Current Source Inverter

IEEE Power and Energy Technology Systems Journal Pub Date : 2019-08-02 DOI:10.1109/JPETS.2019.2929952

Akanksha Singh, B. Mirafzal

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引用次数: 27

Abstract

The proposed three-phase boost Current Source Inverter (CSI) is equipped with Reverse-Blocking IGBTs (RB-IGBT) and the Phasor Pulse Width Modulation (PPWM) switching pattern to provide system efficiency greater than 92% and high boost ratios

$(V_{LL}/V_{dc})$

up to 3.5 in a single stage. The boost CSI results in elimination of dc-dc boost converter or a step-up transformer needed in dc-ac converters operating with a dc input voltage lower than the output line-to-line voltage. In this paper, the relationship between the fundamental component of the inverter output current and the PPWM modulation index is derived and then confirmed by simulation and experimentally obtained data in both stand-alone and grid-tied modes of operation. In this work, a

$2\,\,kW, 208\,\,V_{LLrms}, 60-120\,\,V_{dc}$

RB-IGBT-based boost CSI is prototyped to explore capabilities of the grid-tied boost CSI in terms of efficiency and THD for various input dc voltage and output power levels.

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一种高效并网三相单级升压电流源逆变器

所提出的三相升压电流源逆变器(CSI)配备了反向阻断igbt (rh - igbt)和相量脉宽调制(PPWM)开关模式，以提供大于92%的系统效率和高升压比$(V_{LL}/V_{dc})$在单级高达3.5。升压CSI可消除dc-dc升压转换器或在直流输入电压低于输出线对线电压的dc-ac转换器中所需的升压变压器。本文推导了逆变器输出电流基波分量与PPWM调制指标之间的关系，并通过单机和并网两种运行方式下的仿真和实验数据进行了验证。在这项工作中，我们设计了一个$2\，\，kW, 208\，\，V_{LLrms}， 60-120\，\，V_{dc}$ rr - igbt -based的升压CSI原型，以探索并网升压CSI在各种输入直流电压和输出功率水平下的效率和THD能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE Power and Energy Technology Systems Journal

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