基于晶闸管开关的高重频脉冲泄放研究
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南京理工大学瞬态物理国家重点实验室 南京 210094

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TN345+.1

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Study on the discharge technology of high repetition pulse power supply based on thyristor switch
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National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China

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    摘要:

    高重频脉冲功率源是脉冲功率源技术未来发展的方向,脉冲电容器放电结束后依旧会残留大量电能,出于安全考虑,需要进行残能泄放。为了实现脉冲功率源的高重频放电技术,必须对脉冲电容器上的残能进行快速泄放。传统的机械开关导通响应时间长,开通时间不一致,不利于多模块脉冲功率源残能的快速泄放,因而采用快速晶闸管替代传统的机械泄放开关。通过计算分析给出了在实际实验中泄放电阻参数选择;设计了一种新型实现晶闸管开关状态监测功能的硬件电路,弥补了软件检测有时间延迟的缺点。结合实际应用给出了监测电路的设计原理与器件参数。测试结果表明,此方案可行,在0.5 s内电容器可以完成残能泄放,为高重频技术的实现奠定了基础。

    Abstract:

    High repetition frequency pulse power source is the future development direction of pulsed power source technology. After discharge of pulse capacitor, there will remain a large amount of electrical energy. Residual energy need to discharge for security reason. In order to realize the pulse power source high repetition frequency discharge technology, residual capacity on the pulse capacitor must be released carry on the rapid. The traditional mechanical switch conduction time is long, opening time is inconsistent. It is not conducive to multimodule pulse power source of the rapid discharge of residual power, so this article uses fast thyristor to replace the traditional mechanical vent switch. The selection of the discharge resistance parameters in practical experiments is given by calculation and analysis .A new hardware circuit for realizing thyristor switch state monitoring function is designed, which compensates the shortcomings of time delay of software detection. The schematic diagram and device parameters of the monitoring circuit are given in combination with practical application. The test results show that this scheme is feasible, Residual energy of the capacitor can be discharged within 0.5 s, which lays the foundation for the realization of high repetition frequency technology.

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江凤娟,罗红娥,顾金良,夏言.基于晶闸管开关的高重频脉冲泄放研究[J].国外电子测量技术,2017,36(12):73-76

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  • 在线发布日期: 2018-01-12
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