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Research on a Method of Wetness Measurement Based on Resonant Cavity Perturbation for Hydrogen in Generator

机译:基于谐振腔摄动的发电机内氢湿度测量方法的研究

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摘要

The wetness of hydrogen is an important monitoring index for hydrogen-cooled generator. Analyzed and compared the common methods and instruments for measuring wetness of hydrogen in generator in this paper. Put forward a new method based on resonant cavity perturbation principle to measure the hydrogen wetness. According to steam state in hydrogen, deduced the equivalent dielectric coefficient expression of moisture and the relation between humidity and resonant frequency offset, designed the testing system for measuring hydrogen humidity on-line. And presented improving measures for measuring accuracy that chose high quality factor model, used low expansion material, and designed the temperature compensation system. The system has important practical meaning with simple structure, proper price, and better accuracy in measuring hydrogen humidity on-line.
机译:氢的湿度是氢冷发电机重要的监测指标。分析比较了发电机内氢气湿度的常用测量方法和仪器。提出了一种基于共振腔摄动原理的氢湿度测量新方法。根据氢气中的蒸汽状态,推导了水分的等效介电系数表达式以及湿度与谐振频率偏移的关系,设计了在线测量氢气湿度的测试系统。并提出了选择高品质因数模型,使用低膨胀材料并设计温度补偿系统的测量精度改进措施。该系统具有重要的实际意义,结构简单,价格合理,在线氢气湿度测量精度更高。

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  • 来源
  • 会议地点 Hangzhou(CN)
  • 作者

    rn; rn;

  • 作者单位

    Song-feng TIAN@MOE’s Key Lab of Condition Monitoring and Control of Power Plant Equipment, North China Electric Power University, 102206, China--Qian ZHANG@MOE’s Key Lab of Condition Monitoring and Control of Power Plant Equipment, North China Electric Power University, 102206, China--Zhong-he HAN@MOE’s Key Lab of Condition Monitoring and Control of Power Plant Equipment, North China Electric Power University, 102206, China--Kun YANG@MOE’s Key Lab of Condition Monitoring and Control of Power Plant Equipment, North China Electric Power University, 102206, China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种
  • 中图分类 输配电工程、电力网及电力系统;
  • 关键词

    Hydrogen humidity; Microwave cavity; Perturbation method; Testing system; On-line measurement;

    机译:氢气湿度;微波腔;摄动法;测试系统;在线测量;

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