故障判據 的英文怎麼說

中文拼音 [gùzhàngpànjù]
故障判據 英文
failure criterion
  • 故 : Ⅰ名詞1 （事故） event; incident; happening; accident 2 （原因） cause; reason 3 （朋友; 友情） fr...
  • 障 : Ⅰ動詞（阻隔; 遮擋） block; hinder; obstruct Ⅱ名詞（遮擋物） barrier; block; obstacle
  • 判 : Ⅰ動詞1 （分開; 分辨） distinguish; discriminate 2 （評定） judge; decide 3 （判決） sentence; con...
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  1. It integrates the functions of servo amplifier, dynamic operator, position transmitter and remote communication. many new functions have added to its original ones, such as the real - time logical judgment, malfunctions self - diagnosis, alarm & protection, led display, on - line setting and adjustment of functional parameter and position transmitter, power - absence data auto - protection, watchdog system protection, and the long - range communication with pc

    系統集伺服放大器、電動操作器、位置發送器及遠程網路式通信功能於一體，在保留對應部分原有功能的同時，還新增了邏輯實時判斷、故障實時監控、 led動態顯示數據、功能參數設置、掉電數據自保護、 「看門狗」電路保護、位置發送器在線調節、與遠程工控機數據通信等眾多功能。
  2. Based on the analysis of the magnetic characteristics, an artificial nerural network can be built and the fault samples can be gained by theoretical arithmetic. the results of computation example show that the method can not only judge if shorted field turns exit but also estimate fault turns ratio

    根據該結論構建了發電機故障診斷的神經網路，並直接獲得發電機在額定運行工況下對應的故障樣本，用於故障診斷，不僅對轉子繞組匝間短路故障的存在性，還對故障的嚴重性做出了正確的判斷。
  3. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  4. The 4 - layer printed circuit board, which proposes good electro magnetic compatibility, electrical trait and heat elimination ;. full / half duplex auto - negotiation support ; diagnostic monitoring for malfunction indication and troubleshooting ;. supporting hot - pluggable ; good compatibility ; good at heat elimination. 1. 25gbit / s sfp optic transceiver has been deployed in various broadband applications will be used in backbone networks of ring or daisy - chain topologies

    我們設計的光纖收發器有良好的電磁兼容性，並保證了電路板的供電特性和散熱特性、支持全半雙工自適應、具有數據診斷功能、準確方便的判斷網路故障、支持熱插拔操作、兼容性良好。
  5. The devices for detecting phase - to - ground fault in ineffectively grounded systems are seldom functionary at present. based on thousands of experiments in high - voltage laboratory in north china electric power university, the reasons for misjudgment and the effective measures to avoid it are presented in this paper : to change pt connection form to prevent from ill - effects of ferro - resonant overvoltage ; to increase soft measures to resist against interference ; to adopt neural network method to obtain the virtual value of the detect way

    依據上千次實驗，我們找到了一些導致選線誤判的影響因素，並提出幾點防止誤判的措施，包括改變pt接線方式，避免鐵磁諧振對選線的影響；通過對故障檢測方式的處理和使用連續判斷技術增強裝置的軟體抗干擾能力；嘗試採用神經網路演算法設定選線方法的有效域等。
  6. Grey correlation analysis is applied in the model identification of the fault diagnosis. in accordance with the importance degree of basis case, the possibility of fault model could be judged correctly in the fault tree analysis, which provides a scientific basis for fault handling in order of importance and urgency

    在故障診斷模式識別中，運用灰關聯分析，依據故障樹的底事件重要度，通過關聯度計算及排序，對故障樹分析中，各種故障模式發生的可能性大小作出了準確的判斷，從而為處理事故的先後、緩急提供了依據。
  7. As far as time cost and accuracy are concerned, this criterion based on waveform discernment is superior to the traditional one based on the transmission line voltage amplitude sampled after breakers work and has been verified its exactness by dynamic emulation

    所提判據在時間和準確性上要優于傳統的基於故障后線路開關開斷后故障線路殘壓幅值的判別法，並經動態模擬驗證了其正確性。
  8. Even if the fault spread from external fault zone to internal fault zone, the differential protection can avoid misoperation. main criterion of protection is composite - percentage current differential algorithm according to every sampled value, which can accelerate the protection ' s trip, reduce large amounts of calculation and have strong stability to ta saturation

    本文採用基於采樣值的比率制動式電流差動保護演算法作為保護的主判據，可以明顯提高保護動作速度和減少計算量；具有較強的抗ta飽和能力，在區內故障時無制動，區外故障時有極強的制動特性。
  9. 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- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，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。
  10. Then the method of fault diagnosis in three - phase thyristor converter bridge based on spectrum analysis is discussed. and the fault model was simulated and analyzed again in the method, also fault diagnosis criterion is gained in the condition

    接著，闡述了基於頻譜分析的三相全控整流橋故障診斷方法，並應用該方法對故障模型重新進行了模擬、分析，得出了相應的故障診斷判據。
  11. 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 ）分析電力系統在發生故障時的運行狀態，尤其對三相傳輸線上的故障行波進行了分析和研究，推導了考慮相間耦合的三相傳輸線電壓方程，並將傳輸線上任一點的電壓與故障點電壓建立起聯系，得出了傳輸線上電壓信號在故障點處的奇異性，並以此作為構造新的故障檢測演算法的理論基礎； （ 2 ）將基於小波變換的信號奇異性檢測理論運用於電力系統故障檢測中，針對目前相關研究的不足，提出了電力系統故障檢測判據的補充判據，通過對基本小波的選擇、除噪措施、信號奇異點也即故障點的檢測方法所作的分析，給出了一個可行的解決方案；模擬研究表明：這是一個快速、準確、有效的故障檢測演算法。
  12. According to the comparison result, the variance analysis will not be applicable when the allowance range has to be set flexibly according to specific operation requirements although it can achieve a high rate of fault detection. for example, when the allowance range of some particular component gets bigger, the variance analysis could not precisely define the new judgment boundary

    比較后發現，方差特徵分析法雖然可以達到很高的故障檢測率，但不適用於元件容差需根據具體要求靈活設定的情況，例如當具體情況中某個元件的容差范圍變大時，用方差分析法卻不能準確地定出新的判斷界限。
  13. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  14. In order to select the fault criterion, we refers to some conceptions and methods about probability

    在故障判據的選取上文章引用了概率論的一些概念和方法。
  15. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  16. Therefore, research on integrated process control system, which includes such roles as control, monitoring, diagnosis, proves to have important theoretical and practical value. fault diagnosis, provides scientific methodology to detect and diagnose system exception, and find out fault source, frequency, severity, tendency etc., so as to take timely and effective solution

    故障診斷就是監視控制系統進行故障檢測與診斷，並對故障的原因、故障頻率、故障的危害程度及趨勢預測等內容進行分析判斷，為確診故障點、及早採取維修、防護等補救措施提供科學的決策依據。
  17. In the next place, an improved algorithm of grounding fault location for tree - type distribution system which is based on new fault function and criterion measure, is proposed in order to complete fault branch ide ntification, fault location and fault value. a lot of the simulation of fault diagnosis and location by computer demonstrate that the algorithm is effective

    其次論文基於輻射狀饋線的任一分支線路發生接地故障，通過分析與推導，建構了配電線路單相短路點定位的故障定位函數和相應的故障判據，利用樹網單端信息完成故障分支識別、故障定位和過渡電阻定值。
  18. So, when we get the dates of stress and distortion of wing ' s model structure, which have been calculated by computer, we can simulate the dates of the real wing ' s structure, which we will get through stress sensors and distortion sensors. when we transmit those dates to the center computer through remote wireless transmission devices, the computer will analyze those dates according as scientific fault criterion. so we can carry out the remote real - time health monitoring for wing ' s structure

    這樣，我們讀取計算出的機翼結構模型在受力時的應力、變形值就可以模擬出在採用實體機翼作為研究對象時應力、變形傳感器傳回的數據，把這些數據通過遠程無線數據傳輸設備傳到數據處理計算機上採用科學的故障判據對這些數據進行處理就可以實現對機翼結構的實時遠程健康監控。
  19. Based on the malfunction datum of 328 power transformers ( 110kv or above ), the paper makes the following studies by both the analysis of the datum and lots of tentative tests and presents the corresponding research results : the research on the malfunction mode classification of power transformers by the failure tree analysis method ( fta ) ; the research on the status prediction criterion of running power transformer ; the research on detective methods and criterions of the disability of the power transformer ; the research on evaluation the life of the power transformer ; the research on the relationship between the status estimate system and status examination & repair of the power transformer

    本論文以電力系統328臺110kv及以上電壓等級的電力變壓器事故和故障統計資料為基礎，通過對110kv及以上電壓等級電力變壓器故障數據的整理分析和大量探索性試驗，對以下方面開展研究並給出研究結果： 1採用fta （故障樹分析法）對電力變壓器的故障模式進行科學分類2電力變壓器運行中的狀態預測判據研究3
  20. In chapter 3, an improved pca is presented which calculates the principal subspace of data collected from current time window and compares it with that from data collected under a normal condition. both the improved pca and conventional pca are used to monitor the tennessee eastman process, the improved pca has better performance to detect weak process changes

    第三章提出一種改進主元分析法，在線檢測當前時間窗口內過程數據的主元子空間，並與穩態無故障數據的主元子空間相比較，以判斷是否發生了故障。
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