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首页> 外文期刊>Power Electronics, IET >Space vector-based synchronised bus-clamping pulse width modulation algorithms for three-level voltage source inverter in overmodulation region
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Space vector-based synchronised bus-clamping pulse width modulation algorithms for three-level voltage source inverter in overmodulation region

机译:三电平电压源逆变器过调制区域中基于空间矢量的同步总线钳位脉宽调制算法

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摘要

The main objective of the present work is to develop space vector-based synchronised bus-clamping pulse width modulation algorithms to improve total harmonic distortion and higher DC-bus utilisation of the three-level inverter in overmodulation region. The proposed algorithms can generate synchronised pulse width modulation waveforms with all possible pulse number preserving all the waveform symmetries. The results of the proposed algorithms are evaluated and compared with conventional space vector pulse width modulation algorithm. It is shown that the proposed algorithms give improved results in terms of total harmonic distortion and DC-bus utilisation than that of conventional one in overmodulation region. The proposed method is implemented and verified experimentally on a constant v/f drive fed from insulated gate bipolar transistor (IGBT)-based voltage source inverter using Motorola power PC-based embedded controller.
机译:本工作的主要目的是开发基于空间矢量的同步总线钳位脉宽调制算法,以改善过调制区域中三电平逆变器的总谐波失真和更高的直流总线利用率。所提出的算法可以生成同步脉冲宽度调制波形,并具有所有可能的脉冲数,并保留所有波形对称性。对所提出算法的结果进行了评估,并与常规空间矢量脉冲宽度调制算法进行了比较。结果表明,所提出的算法在总谐波失真和直流母线利用率方面都比传统的过调制区域算法有更好的结果。所提出的方法在使用基于Motorola功率PC的嵌入式控制器的基于绝缘栅双极晶体管(IGBT)的电压源逆变器提供的恒定v / f驱动器上进行了实验和验证。

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