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基于五电平有源中点钳位型双PWM变换器的异步电机矢量控制系统

, PP. 247-252

Keywords: 五电平有源中点钳位,多电平变换器,双PWM,矢量控制

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Abstract:

一种基于五电平有源中点钳位型(ANPC)双PWM变换器的异步电机矢量控制系统,其整流侧和逆变侧变换器分别采用五电平ANPC拓扑背靠背连接,可实现网侧单位功率因数输入和异步电机的四象限运行。整流侧采用电网电压定向矢量控制实现有功功率和无功功率的解耦控制。逆变侧采用转子磁场定向矢量控制实现异步电机的高性能变频调速。设计并制作了一台380V/10kW的样机,实验结果表明该样机运行稳定,控制算法正确可靠。

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