A performance comparison of PWM techniques for five-leg VSIs supplying two-motor drives
A performance comparison of PWM techniques for five-leg VSIs supplying two-motor drives
复制标题
为两电机驱动器供电的五桥臂 VSI 的 PWM 技术的性能比较
DOI：
10.1109/iecon.2008.4758005
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
E. Levi
中科院分区：
文献类型：
--
作者：
M. Jones;D. Dujić;E. Levi
部件最小化的多机驱动器最近已成为一个领域的研究兴趣。一种这样的驱动器包括由五桥臂电压源逆变器（VSI）供电的两个三相感应电动机。由于只有五个支路可用于为两个三相电机供电，一个逆变器支路连接到两个电机，并且驱动器以这样一种方式控制，即两个机器可以独立运行。最近已经为这种驱动系统开发了许多PWM方法。本文通过仿真比较了四种常用的PWM方法，指出双零序注入PWM方法是目前最好的。这是唯一一种能够在两台机器之间任意分配可用直流链路电压的方法，同时仍然能够在所有五个逆变器支路中以相等和恒定的开关频率运行。实验结果，说明操作与双零序注入PWM，从而验证了理论研究结果，提供。
Component minimized multi-machine drives have recently become an area of much research interest. One such drive comprises two three-phase induction motors supplied by a five-leg voltage source inverter (VSI). With only five legs available to supply two three-phase motors one inverter leg is connected to both motors and the drive is controlled in such a way that both machines can operate independently. A number of PWM methods have recently been developed for such a drive system. This paper compares, by simulation, four of the available techniques and shows that the PWM method termed as dasiadouble zero-sequence injectionpsila is by far the best. It is the only method which enables an arbitrary distribution of the available DC link voltage between the two machines, while still being able to operate with equal and constant switching frequency in all five inverter legs. Experimental results, which illustrate operation with double zero-sequence injection PWM and thus verify the theoretical findings, are provided.