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基于零序信号注入的载波型多相PWM控制技术

, PP. 127-132

Keywords: 多相逆变器,载波型PWM,零序信号,谐波

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Abstract:

针对直接计算式多相空间矢量PWM(SVPWM)算法复杂、难于拓展的问题,提出了一种基于零序信号注入的载波型多相逆变器PWM控制方法,该方法通过在正弦参考波中叠加一定的零序分量来改善PWM波的特性,实现了与高性能SVPWM同样的控制性能。分析了该方法的基本原理,推导了零序分量的变化范围,并给出了几种具有不同输出特性的零序信号实现方法。理论分析和实验结果表明,这种基于载波调制的多相PWM控制方法具有实现简单、综合性能好、易于拓展的特点。

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[12]  作者简介:于飞 男, 1975年生, 讲师, 博士, 研究方向为电力电子及舰船电力推进技术。张晓锋 男, 1963年生, 教授, 博士生导师, 研究方向为电力系统自动化及舰艇电力推进技术。

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