| 引用本文: | 张晓,张冠祥,鲁军勇,等.脉冲工况晶闸管扩展速度的影响因素研究.[J].国防科技大学学报,2022,44(2):96-103.[点击复制] |
| ZHANG Xiao,ZHANG Guanxiang,LU Junyong,et al.Research on influencing factors of thyristor expansion speed in pulse condition[J].Journal of National University of Defense Technology,2022,44(2):96-103[点击复制] |
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| 脉冲工况晶闸管扩展速度的影响因素研究 |
| 张晓,张冠祥,鲁军勇,戴宇峰,武文轩 |
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(海军工程大学 舰船综合电力技术国防科技重点实验室, 湖北 武汉 430033)
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| 摘要: |
| 为研究不同因素对其电流扩展速度的影响,根据晶闸管的结构特点和工作原理,建立晶闸管器件模型及脉冲成形网络等效电路模型并进行了仿真模拟。数值仿真结果表明,当正向阻断电压从3 000 V增加至5 000 V时,扩展速度可增加24.6%；当基区宽度从500 μm增加至900 μm时,扩展速度降低了31.7%；当载流子寿命从1 μs增加至10 μs时,扩展速度增加了56.9%,而当温度从300 K增加至330 K时,扩展速度仅增加了0.3%,可以看到温度对扩展速度的影响较小。研究结果有助于选择合适参数以保证开通所需的扩展速度,对改进晶闸管器件设计、提高晶闸管工作性能都具有应用价值。 |
| 关键词: 晶闸管 扩展速度 器件-电路联合仿真 Silvaco |
| DOI：10.11887/j.cn.202202012 |
| 投稿日期：2020-09-22 |
| 基金项目:国家自然科学基金资助项目(51925704；51877214；51607187；51907203)；中国博士后特别基金资助项目(2019T120972)；湖北省自然科学基金资助项目(2019CFB371；2019CFB373) |
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| Research on influencing factors of thyristor expansion speed in pulse condition |
| ZHANG Xiao, ZHANG Guanxiang, LU Junyong, DAI Yufeng, WU Wenxuan |
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(National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval University of Engineering, Wuhan 430033, China)
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| Abstract: |
| In order to study the influence of different factors on the current expansion speed of the thyristor during the turn-on process of the pulse condition, the equivalent circuit model of the pulse forming network based on the structural characteristics and working principle of the thyristor was established, and the simulation was carried out. Numerical simulation results show that if the forward blocking voltage increases from 3 000 V to 5 000 V, the spreading speed will increase by 24.6%. If the base width increases from 500 μm to 900 μm, the spreading speed will decrease by 31.7%. If the carrier lifetime increases from 1 μs to 10 μs, the spreading speed will increase by 56.9%. While the temperature increases from 300 K to 330 K, the spreading speed only increases by 0.3%. It can be seen that the temperature has little effect on the propagation speed. The research results are helpful to select appropriate parameters to ensure the expansion speed required for opening, and have application value for improving the design of thyristor devices and improving the performance of thyristors. |
| Keywords: thyristor expansion speed device-circuit joint simulation Silvaco |
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