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级联型高压变频器控制算法的研究及实现

, PP. 104-110

Keywords: 级联,多载波,多电平,高压变频器,正弦脉宽调制

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Abstract:

介绍了级联型高压变频器的拓扑结构和多载波控制算法,从理论上分析了载波移相式算法的优点。针对在实际设计中使用多载波算法时存在的困难,给出了一种基于数字信号处理器(DSP)和现场可编程门阵列(FPGA)芯片实现错位移相式算法的方法。从实验结果中可以看出,级联型错位移相式变频器的输出相电压和线电压的阶梯数目较多,波形非常接近正弦波,且电压的变化率小,进而证明了文章所提到的实现方法的可行性。

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