三相PWM逆变器脉宽的计算确定

Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting Pub Date : 1988-10-02 DOI:10.1109/IAS.1988.25138

S. Funabiki, Y. Sawada

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引用次数: 19

摘要

针对三相正弦波PWM逆变器，提出了一种新的脉宽调制技术。通过基于几何技术的数值计算，设计脉冲宽度以产生正弦波输出电压。讨论了输出电压和输出电压波形谐波的精度，并与传统三角测量方法的结果进行了比较。介绍了一种改进的获取输入电压波动PWM逆变器的方法。在单片机控制系统的实验中验证了该方法的有效性。

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A computative decision of pulse width in three-phase PWM inverter

A novel PWM (pulsewidth modulation) technique is proposed for a three-phase sine-wave PWM inverter. The pulse width is designed to produce a sine-wave output voltage by numerical calculation based on a geometrical technique. The accuracy of output voltage and the harmonics in an output voltage waveform are discussed and compared with the results of the conventional triangulation method. A modified method is introduced for obtaining a PWM inverter with fluctuating input voltage. The validity of the method is verified in an experiment using a microprocessor-based control system.<>

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Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting

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