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核聚变与等离子体物理 ›› 2007, Vol. 27 ›› Issue (3): 227-230.

• 研究报告 • 上一篇    下一篇

EAST低杂波系统天馈线保护设计与实现

贾 华,徐 辉,刘甫坤,王 茂,单家方   

  1. (中国科学院等离子体物理研究所,合肥 230031)
  • 收稿日期:2006-11-28 修回日期:2007-03-28 出版日期:2007-09-15 发布日期:2011-08-15
  • 作者简介:贾华(1982-),男,河南新乡人,中科院等离子体物理研究所微波与加热研究室硕士研究生,研究方向:微波工程技术。
  • 基金资助:

    国家“九五”重大科学工程子项目

Design and implementation of the protection for LHCD antenna transmission line on EAST tokamak

JIA Hua, XU Hui, LIU Fu-kun, WANG Mao, SHAN Jia-fang   

  1. ( Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2006-11-28 Revised:2007-03-28 Online:2007-09-15 Published:2011-08-15

摘要:

介绍了EAST低杂波系统天馈线保护的设计及其实现。针对EAST装置低杂波系统微波陶瓷窗破裂的原因,在低杂波系统天馈线上设置了高反射保护和打火保护两种保护措施,其中打火保护可以在打火发生后20μs以内迅速切断微波输出。实验结果表明,两种保护并行工作,能有效地保护整个波系统。

关键词: 高反射, 打火检测, 低杂波, EAST

Abstract:

The design and implementation of the protection for LHCD antenna transmission line on EAST tokamak are described in detail. The reasons causing damage to the ceramic windows of the lower hybrid wave(LHW) system on EAST are analyzed, then two safeguards including high reflection protection and arc protection have been designed on the antenna transmission line to avoid the damage. Especially, the arc protection will shut down the microwave output in less than 20?s after arcing. Experimental results prove that the double-acting protections worked at the same moment, and protected the whole system efficiently.

Key words: High reflection, Arc detection, Lower hybrid wave, EAST

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