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首页> 外文期刊>International journal of industrial electronics and drives >Optimisation of total harmonic distortion using carrier-based PWM techniques for nested multilevel inverter topologies
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Optimisation of total harmonic distortion using carrier-based PWM techniques for nested multilevel inverter topologies

机译：嵌套多级逆变器拓扑基于载波的PWM技术优化总谐波失真

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摘要

This paper presents the design and simulation of multilevel inverter topologies configuring nested arrangement. It has the remarkable feature of reduced number of diodes and concomitantly higher efficiency compared to the neutral-point clamped (NPC) inverter topology. The simulation of nested multilevel topology is fulfilled for four, five, six, seven, eight and nine output voltage levels having connected with a three phase star connected RL load. The performance comparison for different output voltage levels is accomplished in terms of total harmonic distortion (THD). The carrier-based sinusoidal PWM techniques, namely, phase disposition (PD), phase opposition disposition (POD) and alternative phase opposition disposition (APOD) are adopted here in order to reduce harmonic distortion in the output voltage as well as load current. The harmonic analysis is carried out through FFT analysis. The simulation is performed using MATLAB/Simulink software version R2012b.
机译：本文介绍了配置嵌套布置的多级逆变器拓扑的设计和仿真。 与中性点钳位（NPC）逆变器拓扑相比，它具有减少二极管数量的显着特征，并伴随着更高的效率。 嵌套多级拓扑的仿真满足了与三相星连接的RL负载连接的四个，五个，六个，八个和九个输出电压电平。 不同输出电压电平的性能比较是在总谐波失真（THD）方面完成的。 这里采用基于载体的正弦PWM技术，即相位置位（Pd），相位相反分配（POD）和替代相对相相对处（Apod），以减少输出电压的谐波变形以及负载电流。 谐波分析通过FFT分析进行。 使用MATLAB / SIMULINK软件版本R2012B执行模拟。

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