暫態行波 的英文怎麼說

中文拼音 [zhàntàiháng]
暫態行波 英文
transient state travelling wave
  • : Ⅰ形容詞(時間短) short; momentary Ⅱ副詞(暫時) temporarily; for the moment; for the time being
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  • : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  1. In the second method, wavelet transform is combined with modal transform, and transient travelling - wave signal is used. after three phase signals are decomposed into their modal components, the wavelet transform coefficient of ground mode can be used to identify approximate position of fault, and the wavelet transform coefficient of aerial mode is used for identifying arrival time of traveling - wave

    第二種方法將小變換與模式變換理論結合起來,採用的是暫態行波信號,首先將三相信號轉換成模式分量,零模分量的小變換系數用於判別故障的大致位置,然後利用線模分量的小變換系數來確定到達時間。
  2. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「零序電流幅值法」 、 「穩零序電流方向法」 、 「穩7次諧零序電流方向法」和「 s信號注入法」 -進有選擇地遞進使用,不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷,更將故障定位在故障線路最小故障區段。
  3. This paper presents a method of improving on frame & horizontal synchronization in laser phototypesetter, by using singal - chip computer system to detect real - time frequency deviation and adjust film transmission speed

    摘要提出了一種在激光照排機電控系統中,利用單晶片微機對轉鏡掃描光柵頻率信號的動量進檢測、提取,並以此實時校正系統輸片速度,實現場掃描對掃描的跟蹤、補償,從而提高、場掃描同步精度的方案。
  4. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括:工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路(恆流源電路、時基信號處理電路、被測信號處理電路)設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括:主程序流程圖、系統開機自檢程序流程圖、手動靜測試程序流程圖、半自動靜測試程序流程圖、自動靜測試程序流程圖、動測試程序流程圖、測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦信號和階躍信號,並對三種不同測試狀(靜、動)下大量程脈沖變換電路輸出脈沖信號的頻率進精確測量。
  5. This paper introduces a novel fault circuit selecting method, which utilizes wavelets transform to obtain useful fault transient components

    本文著重介紹了利用小變換提取故障信號的高頻分量,進故障選線的方法。
  6. This paper introduces a novel fault circuit selecting method, which utilizes wavelets packet transform to obtain useful fault transient components and based on dsp, proposes a feasible solution

    本文著重研究了利用小包變換提取故障信號的高頻分量,進故障選線的方法,並結合dsp技術架構硬體裝置,提出一種可的解決方案。
  7. The thesis introduces the definition of transient current and it ' s energy. the tranvelling wave can be affected by power system equipment, it ' s effect is analysed with energy change of transient current at high frequency band

    討論分析了電力設備對的影響。提出了通過電流高頻分量的能量及其能量比值變化情況定量分析變電站設備對電流高頻分量的影響程度的方法。
  8. Transient state travelling wave

    暫態行波
  9. Simulative analysis and experimental test of the transmission characteristics of transient traveling - wave in transformer

    互感器暫態行波傳輸特性模擬分析與實驗測試
  10. On the basis of extensive reading and research of theory of the wavelet, it is presented a practical method based on odd theory of wavelet analysis to remove the white noises from transient fault current traveling waves of high voltage transmission line via multi - size analysis of wavelet

    本文在廣泛閱讀和深入研究小理論的基礎上,論文提出了一種基於小分析的奇異性理論對通過小多尺度變換的高壓輸電線路故障電流暫態行波信號進白噪聲濾除的實用方法。
  11. The contents are using fault locating algorithm based on measurement impedance to determine a fault zone of transmission line, then use wavelet transform fault locating algorithm based on current traveling wave to fix the fault position. in order to ensure both results are valid, gps is used to synchronize their hardware. 2

    其主要內容是:利用所記錄的工頻故障信息和阻抗法粗略計算故障位置,再利用所記錄的暫態行波電流精確定位故障點,二者通過gps時間同步單元進時間同步,從根本上解決輸電線路故障測距問題。
  12. The adaptive optical transducing principle on independent variables is presented in this paper, and a new adaptive optical current transducer ( aoct ) has been developed with the new independent variables introduced to oct, in which the precise power frequency current offered by a reference model of steady state is benchmark, and the measured harmonious and transient currents from optical transducer might be adjusted adaptively applying the adaptive arithmetic, so that both the steady state and transient precision of the aoct has been improved

    論文提出了獨立量自適應光學傳感原理,並應用這種原理的一種形式? ?光電獨立量自適應光學電流傳感原理,研製了一種新型的自適應光學電流互感器( adaptiveopticalcurrenttransducer ,簡稱aoct ) ,以穩參考模型所提供的高精度基電流測量值為基準,應用自適應演算法對aoct中光學傳感頭輸出的穩電流中的基、諧電流測量值進自適應校正,從而能夠綜合提高oct對電力系統穩電流的測量精度。
  13. The transient responses of saw motor under different working conditions are simulated by the euler method, and many factor that affect the motion of the saw motor are introduced

    並用euler數值計算方法對不同工作條件下的表面彈性馬達響應做了模擬,揭示了各種因素對表面彈性馬達運的影響。
  14. By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately

    論文深入地分析了高壓線路故障電流折、反射過程以及折、反射系數的特點,提出了新的單端故障測距方法,它不僅能夠有效地識別出測距所用的反射,而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響,在近區仍可以準確地進測距;同時模擬阻器的特徵,設計了低通數字濾器,對通過了低通數字濾器的故障電流再次進分析,並利用本文提出的單端故障測距方法進故障定位,結論是所提出的測距方法在實際應用中仍是有效的。
  15. By using high - speed data acquisitioning unit designed specially to capture travelling waves of transient current, using global positioning system ( gps ) to supply high precise time tagging for both ends, using wavelet transform theories to identify the head of the travelling waves, the fault locator can realize high precise double - ended travelling waves location

    該測距裝置採用專門設計的高速采樣單元捕獲電流信號,用全球定位系統( gps )為線路兩端提供精度高達1 s的統一時標,用小變換理論識別電流頭信息,從而可以實現高精度的雙端法測距( 150m ) 。
  16. The transient state of torpedo electrical drive system, caused by torpedo ' s steding, shifting, and the fluctuation of battery voltage, and the change of the resistance in voyage, will influence efltire attitude and stability of the torpedo immediately, as well as every parts of electrical propulsion system. therefore, it is necessary to theoretically analyze the transient state of torpedo electrical power propulsion system

    魚雷電動力推進系統在魚雷啟動、變速及因電池電壓的動和在魚雷航阻力變化時而產生的過程都將直接對整個魚雷的姿和穩定性產生影響,同時對電動力推進系統本身各個組件也將產生不同影響,因此有必要對魚雷電動力推進系統的過程進一些理論分析。
  17. The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection

    應用功率譜估計方法討論了故障高頻噪聲信號在頻率軸上的分佈情況,利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻信號的衰減特性。論文的後半部分(第五,六,七章)著重分析了現有基於故障電流的保護原理和判據存在的問題,提出了新的實現方案,並討論了電流保護的運性能。利用多分辨分析和小分解快速演算法構成的遞推保護判據,可以準確區分故障線路和非故障線路,實現超高速電流保護,計算更為簡單方便,計算速度更快。
  18. This dissertation deeply studies the transient models of distant short circuit fault currents for the dc rapid transit railway and presents a detailed analysis of the wavelet transforms to discriminate the remote short circuit current from the train starting current

    本文主要討論了地鐵直流側遠方短路故障電流的過程,並利用小變換作為分析工具對遠方短路故障電流和機車起動電流進了鑒別。
  19. The simulation result shows that using wavelet packet analysis to separate the character from the transient fault signals is an efficient way

    模擬結果表明:利用小包分析理論對電力系統故障信號特徵提取處理是之有效的方法。
  20. In spite of the limited samples, the simulation result shows that using wavelet analysis to separate the character from the transient fault signals is an efficient way

    盡管本論文中選擇的模擬算例針對的情況有限,但是模擬結果表明:利用小分析理論對電力系統故障信號進特徵提取處理是之有效的方法。
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