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detection criteria中文是什么意思

  • 檢測(cè)準(zhǔn)則
  • 檢定準(zhǔn)則

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  • To that project , it was simple to construct , little effect to original pole , the safety coefficient is higher , the expense is lower , reduce flap is obvious , each of testing result was satisfied the detection criterion of railway bridge and the request of increasing in speed , consequently , it is very importance to guarantee the safety and the whole increasing in speed of beijing to guangzhou line
    采用雙線剛性連接加固方案,施工簡(jiǎn)單易行,對(duì)原鋼件損傷小,安全系數(shù)高,加固費(fèi)用低,減振效果明顯,各項(xiàng)測(cè)試結(jié)果基本滿足《鐵路橋梁檢定規(guī)范》及提速技術(shù)要求,因此對(duì)確保列車通過(guò)大橋安全及京廣線的整體提速具有十分重要的意義。
  • The main job of this research is : ( 1 ) analyze the operation situation of power system during faults ; pay attention to the traveling wave on the three - phase transmission line ; study the equation of voltage on three - phase transmission line with impedance capacitance coupling between phases ; contact the voltage on any point with the fault voltage , study the singularity of the voltage signal in fault point , and make it to be the base of the new fault detection method ; ( 2 ) apply the singularity detection theory based on wavelet analysis to the power system faults detection , give a complementary criterion to current fault detection criterion , study how to select the basic wavelet , how to filter noise , how to detect the singular point or fault point , and finally give a total solution . the simulations prove it to be a quick , correct and effective fault detection method
    本文的主要工作有: ( 1 )分析電力系統(tǒng)在發(fā)生故障時(shí)的運(yùn)行狀態(tài),尤其對(duì)三相傳輸線上的故障行波進(jìn)行了分析和研究,推導(dǎo)了考慮相間耦合的三相傳輸線電壓方程,并將傳輸線上任一點(diǎn)的電壓與故障點(diǎn)電壓建立起聯(lián)系,得出了傳輸線上電壓信號(hào)在故障點(diǎn)處的奇異性,并以此作為構(gòu)造新的故障檢測(cè)算法的理論基礎(chǔ); ( 2 )將基于小波變換的信號(hào)奇異性檢測(cè)理論運(yùn)用于電力系統(tǒng)故障檢測(cè)中,針對(duì)目前相關(guān)研究的不足,提出了電力系統(tǒng)故障檢測(cè)判據(jù)的補(bǔ)充判據(jù),通過(guò)對(duì)基本小波的選擇、除噪措施、信號(hào)奇異點(diǎn)也即故障點(diǎn)的檢測(cè)方法所作的分析,給出了一個(gè)可行的解決方案;仿真研究表明:這是一個(gè)快速、準(zhǔn)確、有效的故障檢測(cè)算法。
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