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首页> 外文期刊>International Journal of Engineering Research and Applications >Comparative Analysis and Simulation of Diode Clamped & Cascaded H-Bridge Multilevel Inverter using SPWM Technique
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Comparative Analysis and Simulation of Diode Clamped & Cascaded H-Bridge Multilevel Inverter using SPWM Technique

机译：基于SPWM技术的二极管钳位和级联H桥多电平逆变器的比较分析和仿真

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摘要

Multilevel inverters have become more popular over the years in high power medium voltage applications without the use of a transformer and with promise of less disturbance & reduced harmonic distortion. In this paper, two types of multilevel converter in three phase configuration, cascaded H-Bridge multilevel inverter (CMLI) and diode clamped multilevel inverter (DCMLI) of 5 and 7-level are modelled and compared in the case of feeding of a three phase squirrel cage induction motor. Here, carrier based sinusoidal pulse width modulation (SPWM) technique is used as the modulation strategy. These modulation strategy include phase disposition technique (PD), phase opposition disposition technique (POD), and an alternative phase opposition disposition technique (APOD). A detailed study of the modulation technique has been carried out through MATLAB/SIMULINK for both multilevel converters and a comparative evaluation between DCMLI and CMLI using SPWM technique in terms of THD%.
机译：多年来，在不使用变压器的情况下，多电平逆变器已在高功率中压应用中变得越来越流行，并有望减少干扰并减少谐波失真。在本文中，对三相配置的两种类型的多电平转换器，级联的5级和7级H桥多电平逆变器（CMLI）和二极管钳位多电平逆变器（DCMLI）进行了建模和比较。鼠笼感应电动机。在这里，基于载波的正弦脉冲宽度调制（SPWM）技术被用作调制策略。这些调制策略包括相位配置技术（PD），相位对置技术（POD）和替代的相位对置技术（APOD）。已通过MATLAB / SIMULINK对这两种多电平转换器进行了详细的调制技术研究，并使用TPWM％的SPWM技术对DCMLI和CMLI进行了比较评估。

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