三电平 PWM 变频调速装置  

Three potential PWM Variable Frequency Speed Regulation Device

作　　者：钟述文[1] 

机构地区：[1]宝钢集团公司设备部

出　　处：《电气传动自动化》1997年第4期12-17,共6页Electric Drive Automation

摘　　要：文章从三电平ＰＷＭ变频器的输出状态、电压波形、空间电压矢量、谐波等几个方面分析了它的基本结构、控制原理，揭示了六角形空间电压矢量图的内在机理。详细叙述了三电平ＰＷＭ变频器在输出调频、调压和ＰＷＭ调制控制中的作用以及三电平ＰＷＭ变频器的优异性能。The basic structure and control principle of the three potential PWM frequency transformer(TPFT)are analized in the article from the aspects of its output state,voltage waveform,space voltage vector and harmonic etc.The internal mechanism of the hexagon space voltage vector graph is revealed.The excellent properties of the TPFT and its function in the output frequency regulation,voltage regulation and PWM modulation control are stated in detail.

关 键 词：三电平PWM 变频器 变频调速装置 

分 类 号：TN773[电子电信—电路与系统]