| 逆变器中杂散电感对IGCT端部电压的影响 |
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| 引用本文： | 吕中宾,周勇. 逆变器中杂散电感对IGCT端部电压的影响[J]. 电力电子技术, 2006, 40(5): 138-139,129 |
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| 作者姓名： | 吕中宾 周勇 |
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| 作者单位： | 河南电力试验研究院,河南,郑州,450005;郑州大学,河南,郑州,450002 |
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| 摘 要： | 为了分析逆变器中杂散电感对集成门极换相晶闸管（Integrated Gate Commucated Thyristor，简称IGCT）端部电压的影响，利用PSpice软件包建立了IGCT的2T-3R子电路模型，得出了考虑逆变电路中杂散电感影响的IGCT端部电压仿真波形。分析对比后可知，在杂散电感较大的情况下，尤其是换流回路杂散电感较大时，会使IGCT输出端产生过电压，严重时会使IGCT击穿。通过安装关断吸收电路，可以有效地降低IGCT的端部过电压。
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| 关 键 词： | 逆变器/杂散电感 集成门极换相晶闸管 端部电压 |
| 文章编号： | 1000-100X（2006）05-0138-02 |
| 收稿时间： | 2006-05-19 |
| 修稿时间： | 2006-05-19 |
Influence of Stray Inductances on Anode-cathode Voltage of IGCT in the Inverter |
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| L Zhong-bin,ZHOU Yong. Influence of Stray Inductances on Anode-cathode Voltage of IGCT in the Inverter[J]. Power Electronics, 2006, 40(5): 138-139,129 |
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| Authors: | L Zhong-bin ZHOU Yong |
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| Affiliation: | 1,Henan Electric Power Research Institute, Zhengzhou 450005, China; 2.Zhengzhou University, Zhengzhou 450002, China |
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| Abstract: | In order to analyze the influence of stray inductances on anode-cathode voltage of IGCT(Integrated Gate Commucated Thyristor) in the inverter,a single 2T-3R simulation model of IGCT is established and the influence of stray inductances on anode-cathode voltage of IGCT is simulated using PSpice(Personal Simulation program with IC emphasis).In the case of large stray inductance,especially when the stray inductances in commucated sub-circuit are high,the influ-ence on anode-cathode voltage of IGCT becomes more obvious and even leads to a breakdown of IGCT.The over-voltage of IGCT can be depressed evidently by installing RC snubber circuit. |
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| Keywords: | inverter/stray inductances IGCT anode-cathode voltage |
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