| 一种新的有源换流晶闸管电流源PWM变频器 |
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| 引用本文： | 周令琛.一种新的有源换流晶闸管电流源PWM变频器[J].上海大学学报(自然科学版),2003,9(6):507-512. |
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| 作者姓名： | 周令琛 |
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| 作者单位： | 上海第二工业大学,电子电气工程学院,上海,201209 |
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| 摘 要： | 普通晶闸管电流源变频器(CSI)由于六拍换流存在着较大的谐波，且脉宽调制式(PWM)电流源逆变器一般需要具有反向电压关断能力的门极关断电路，这就限制了它的应用．该文提出一种采用一个门极可关断开关和六个晶闸管的新的PWM电流源逆变器，此电路通过有源换流来实现传统的晶闸管CSI的脉宽调制．文章阐述了这种变流装置的调制技术并给出仿真实验结果．该电路适合于高性能和大功率的应用场合．
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| 关 键 词： | 电流源变频器 晶闸管 脉宽调制式 电流源逆变器 |
| 文章编号： | 1007-2861(2003)06-0507-06 |
| 修稿时间： | 2003年5月14日 |
A New PWM CSI with Actively Commutated Thyristors |
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| ZHOU Ling-chen.A New PWM CSI with Actively Commutated Thyristors[J].Journal of Shanghai University(Natural Science),2003,9(6):507-512. |
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| Authors: | ZHOU Ling-chen |
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| Abstract: | Conventional thyristor-based CSI suffers from poor waveform quality due to the six step switching. PWM CSI inverters typically require gate turn off devices with reverse voltage blocking capability. This has limited their applications. The paper presents a new PWM CSI using only one gate turn off switch and six thyristors. The converter uses active commutation to realize PWM in a conventional thyristor-based CSI. Modulation techniques for the proposed inverter, and simulation and experimental results are described. The circuit is suitable for high power, high performance applications. |
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| Keywords: | CSI thyristor PWM |
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