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首页> 外文期刊>Power Electronics, IET >Generalised pulse width modulation approach for DC capacitor voltage balancing in diode-clamped multilevel converters
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Generalised pulse width modulation approach for DC capacitor voltage balancing in diode-clamped multilevel converters

机译:二极管钳位多电平转换器中直流电容器电压平衡的通用脉冲宽度调制方法

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摘要

This study develops a generalised pulse width modulation (PWM) approach to eliminate both the lowfrequency oscillations and imbalances in the dc-link capacitor voltages, which are the main drawbacks of diode clamped converters. The algorithm has been developed within the carrier-based PWM framework to facilitate its implementation in diode clamped converters with four or more levels. In addition, a generalised control strategy for dc voltage control is proposed and its stability is demonstrated. The good performance of the proposed modulation technique is demonstrated from simulation and experimental results for a four-level diode-clamped inverter.
机译:这项研究开发了一种通用的脉冲宽度调制(PWM)方法,以消除低频振荡和直流链路电容器电压中的不平衡现象,这是二极管钳位转换器的主要缺点。该算法已在基于载波的PWM框架内开发,以促进其在具有四个或更多等级的二极管钳位转换器中的实现。此外,提出了一种通用的直流电压控制策略,并证明了其稳定性。从四电平二极管钳位逆变器的仿真和实验结果证明了所提出的调制技术的良好性能。

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  • 来源
    《Power Electronics, IET》 |2011年第1期|p.89-100|共12页
  • 作者

    Grigoletto F.B.Pinheiro H.;

  • 作者单位

    Power Electronics and Control Research Group, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil;

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  • 正文语种 eng
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