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首页> 外文会议>2014 International Conference on Advances in Engineering and Technology Research >A novel method of nine level inverter fed induction motor drive
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A novel method of nine level inverter fed induction motor drive

机译：九电平逆变器馈电异步电动机驱动的新方法

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摘要

A nine level multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage control and also for improving the total harmonic distortion by reducing the harmonics. Generally, the poor quality of voltage and current of a conventional inverter fed induction machine is obtained due to the presence of harmonics and hence there is a significant level of energy losses. The nine level inverter is used to reduce the harmonics. So, this paper presents the simulation of three phases nine level inverter fed induction motor drive. In inverters by increasing the number of steps it generates the very high quality of the output voltage and current. This paper presents a nine levels multi level inverter and these nine levels can follow a voltage reference with accuracy and with the advantage that the generated voltage can be modulated in amplitude instead of pulse-width modulation. Therefore a harmonic elimination method is applied to eliminate any number of specific higher order harmonics of multilevel converters with unequal dc voltages. The effectiveness of the system is verified through simulation using MATLAB / SIMULINK package.
机译：九电平多电平逆变器技术最近成为大功率中压控制领域中的一种非常重要的替代方法，并且还通过降低谐波来改善总谐波失真。通常，由于谐波的存在，导致传统的逆变器馈电式感应电机的电压和电流的质量较差，因此存在很大程度的能量损耗。九电平逆变器用于减少谐波。因此，本文提出了三相九电平逆变器馈电感应电动机驱动的仿真。在逆变器中，通过增加步数，它会产生非常高质量的输出电压和电流。本文介绍了一种九电平多电平逆变器，这九个电平可以精确地跟随一个电压基准，其优点是可以对生成的电压进行幅度调制，而不是对脉冲宽度调制。因此，采用了谐波消除方法来消除具有不相等直流电压的多电平转换器的任意数量的特定高阶谐波。通过使用MATLAB / SIMULINK软件包进行仿真，可以验证系统的有效性。

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