改进后的二极管箝位多电平逆变器扩展了辅助电路的使用,实现了开关、关断和平衡

A. Ashaibi, S. Finney, B. Williams, A. Massoud
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引用次数: 16

摘要

二极管箝位多电平逆变器(DCMLI)是一种具有鲁棒性的高压多电平逆变器。DCMLI的主要缺点是直流链路电容电压不平衡。本研究采用了二极管箝位逆变器。用于平衡直流链路电容的方法是基于辅助开关模式电路,该电路在不连续电感电流模式下工作。本研究的重点是如何使用辅助SMPS电路来启动、平衡和关闭逆变器。这些功能是多电平逆变器在高压应用中的一个问题。对所提出的辅助电路操作技术进行了仿真和实验验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Extend the Use of Auxiliary Circuit to Start up, Shut down, and Balance of the Modified Diode Clamped Multilevel Inverter
The diode clamped multilevel inverter (DCMLI) is an attractive high voltage multilevel inverter due to its robustness. The main draw back of the DCMLI is dc link capacitor voltage imbalance. A diode clamped inverter has been used in this research. The method used to balance the dc link capacitors is based on auxiliary switch-mode circuits, which are operated in a discontinuous inductor current mode. This research is focused on how to use auxiliary SMPS circuits to start up, balance, and shutdown the inverter. These functions are an issue in high voltage applications of the multilevel inverter. Simulation and experimental results are presented for the proposed auxiliary circuits operational technique.
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