| GTR的驱动与保护电路设计 |
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| 引用本文： | 余鸣,陈其工.GTR的驱动与保护电路设计[J].安徽工程科技学院学报,2002,17(4):53-56. |
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| 作者姓名： | 余鸣 陈其工 |
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| 作者单位： | 1. 芜湖职业技术学院,安徽芜湖241000
2. 安徽工程科技学院,安徽芜湖24100 |
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| 摘 要： | 主要讨论了变频器中大功率器件GTR开关频率可靠性的提高.介绍的驱动电路能最大限度地缩短GTR的关断时间,这样一方面提高了SPWM波调制频率,使得变频器输出电压更接近于正弦波,减少了电机损耗、噪音,增大了电机出力;另一方面又将为GTR的保护赢得时间,从而较好地解决了GTR通用变频器中存在的基本问题.
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| 关 键 词： | 变频器 开关频率 可靠性 SPWM |
| 文章编号： | 1007-5240(2002)04-0053-04 |
| 修稿时间： | 2002年7月12日 |
The design of driving and protecting circuits for GTR |
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| YU Min,CHEN Qi gong.The design of driving and protecting circuits for GTR[J].Journal of Anhui University of Technology and Science,2002,17(4):53-56. |
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| Authors: | YU Min CHEN Qi gong |
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| Institution: | YU Min1,CHEN Qi gong2 |
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| Abstract: | This paper mainly discusses the increment of switching frequency and reliability of GTR in frequency converter. The driving circuit given in this paper can extremely reduce the turnoff time of GTR. Thus, on the one hand, the modulating frequency of SPWM wave is increased, which makes the waveform of the output voltage of the converter more similar to the waveform of the sine wave. hte loss and the noise of the motor are reduced thus the efficiency of the motor increased. On the other hand, the GTR can be much better protected. |
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| Keywords: | frequency converter switching frequency reliability SPWM |
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