single fault 中文意思是什麼
single fault
解釋
單層錯-
The system regards the analyzing of deliquescent gas in oil as main method for diagnosing inner delitescent fault. the system carries out a comprehensive diagnosing combined with diversified high voltage tests items and it can identify the sort of fault. this method effectively remedies the limitation of single means
該系統以油中溶解氣體分析作為診斷內部潛伏性故障的主線，結合各種相應的高壓試驗項目進行綜合診斷，確定故障的類別，有效地彌補了單一方法的不足。 -
Fault ruptures may consist of a single narrow main break.
斷層破裂可能只包括單獨一條狹窄的主裂隙。 -
The single - phase grounding fault frequently occurs in neutral ungrounded system, the fault line and fault location must be found to avoid a phase - to - phase short as soon as possible
單相接地故障在小電流接地系統中出現的比較頻繁，此時必須盡快找到故障線路以及大致的故障點，以避免兩相對地短路。 -
Transient simulation of tri - winding single phase motors with wye - connected during fault operation
三繞組單相電動機故障運行瞬態過程模擬研究 -
The thought of standing in a home depot aisle trying to distinguish between a ground fault circuit interrupter and a hinged single - pole breaker lockout induces abject terror
光是想到站在「特力屋」里，試著分辨漏電斷路器和絞支單極斷路器，就讓我頭皮發麻。 -
Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment
本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型；設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案；對電機採用何種驅動方式進行了對比分析；對驅動電路進行了元器件選型、原理圖設計、制板及調試；有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊；設計了以dsp為核心的控制電路原理圖；以模塊化的軟體編程思想編制了電機控制軟體；通過tms320lf2407目標板、上位機、驅動板及電機的聯調，證明了系統可行。 -
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
Secondly, introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology, and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character. thirdly, with the application of mode recognition method, completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology. fourthly, introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis, hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information
本文的研究工作主要包括以下五個部分：首先，介紹航空發動機常見的磨損故障類型，研究磨損故障的失效機理，分析磨粒的產生機理、分類以及形態特徵：其次，針對傳統鐵譜分析技術的缺點，引入圖像分析技術，再結合特徵參數優化篩選，形成基於圖像的磨粒顯微形態學特徵描述方法：然後，基於提取到的磨粒形態特徵信息，應用模式識別方法完成磨粒自動識別，並根據顆粒摩擦學的基本原理進行航空發動機磨損故障的診斷與定位：再后，鑒于單一方法不能提取足夠的故障徵兆信息進行磨損故障診斷，本文引入信息融合技術，開展航空發動機多故障徵兆信息綜合診斷方法的研究與探索；最後，基於航空發動機滑油光譜分析與鐵譜分析數據，應用時序模型、灰色模型以及組合模型進行磨損故障的預測方法研究。 -
This paper researches the non - direct - grounded system fault detection from software arithmetic view, whose main content is as follows : the paper analyses the system running characters before and after fault. and the paper analyses the fault transient signal and fault steady signal and all parts in fault steady signal after the single line - to - earth fault occurs, and discovers the fault laws and appearance of fault signal. the analyzing of the fault laws and fault phenomenon of non - direct - grounded system all above is the base of analyzing arithmetic
本文針對小電流接地系統選線的問題，從軟體演算法的角度進行了研究，主要內容如下：對小電流接地系統故障前和故障后系統的運行特點進行了分析，並且對小電流接地系統發生單相接地故障后，故障暫態信號、故障穩態信號以及故障穩態信號的各種成分進行了深入的分析，找到了故障的規律以及其故障信號的表現形式，為對各種演算法的分析比較打下了基礎。 -
An automatic fault location method is proposed based on ftu after the circuit analysis of single line - to - ground fault in distribution networks
通過對配電網發生單相接地故障后饋線的電壓、電流變化規律的分析，論文提出了基於饋線現場監控終端ftu的故障點智能定位方法。 -
Based on the main fault - character analysis of single line - to - ground fault in non - grounded distribution networks, the location algorithms by injecting current are proposed for diagnosing and locating faults
基於對配電網發生單相接地故障后的故障主要特徵的分析，論文應用加信診斷方法，提出了相應的接地故障定位演算法。 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
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。 -
Software ' s single fault model and its testing methods
軟體的單故障模型及故障的測試方法 -
Fault recorder information is the foundation of fault diagnosis, one single fault recorder can not implement complex fault diagnosis
故障錄波信息是故障診斷系統的基礎，單個故障錄波裝置無法實現復雜的故障診斷。 -
Therefore, the basic fault pattern is established by the fault symptom and neural network is trained by the sample or sample composed of the single fault pattern, so that it can discern the reasons and positions of the different faults
鑒于電控系統組成的復雜性，同樣的故障徵兆具有」一果多因」的特點。因此，以故障徵兆為基本模式，採用單故障樣本組合的方式對神經網路進行訓練，以識別具體的故障原因和部位。 -
In current network applications, c / s modal is the mainstream. but with the quick development of the distribute computing and new network technology, more and more people focus their attention on p2p modal in recent days. the main difference between p2p modal and c / s modal is that the former does n ' t rely on a server, thus control is distribute. some modals of p2p even do n ' t require a server. the p2p modal has excellent redundancy. no single fault point in p2p modal. p2p modal can be a good complementarity of c / s modal. and of course, as a new technology, p2p modal is not maturate. it even has n ' t a standard protocol till now
而隨著分散式計算的深化和網路技術的進一步發展，對等式網路模型（ p2p ）開始受到重視，並成為最近的技術熱點之一。 p2p模型與c s模型相比，最大的不同是降低了對服務器的依賴及其分散控制，一些p2p模型甚至不需要服務器。 p2p系統的冗餘性很好，沒有單一的失敗點。 -
Method for linear circuits with element tolerances are also presented. by this method, the double fault general characterization can be calculated by single fault general characterization which can be calculated by single fault feature. this method makes simulation before test more simple. according to the actual project requirements, practical bp algorithm is presented and realized on personal computer. after further optimization and improvements, a subhidden layer bpnn algorithm which support unlimited units is realized
文中給出的線性電路單故障特徵可根據電路正常狀態下參數值來計算;給出的線性電路雙故障特徵可由元件的單故障特徵來獲得，簡化了測前模擬工作。根據實際項目的要求，在pc機上實現了實用的bp演算法。經過改進，實現了支持無限元的子隱層bp神經網路的核心演算法。 -
Used with general dimension furthest correlation coefficient method and general dimension series single value approach, it is not only the single fault of system state, but also the coupling fault of complicated system state can be diagnosed, classified and identified. it is the new discovery of the multi - fractal theory applied in mechanical equipment diagnosis engineering, and also the new application of series single value approach applied in the field of fault diagnosis in this paper
運用廣義維數最大相關系數法，廣義維數序列單值優化逼近方法，不僅能對系統狀態的單一故障進行診斷、識別及其分類，而且還能對復雜系統狀態的耦合故障進行診斷、識別及分類，這是本文將多重分形原理應用於機械設備診斷工程中的新的探索，也是優化逼近等數學方法在故障診斷中的新的應用。 -
In this paper, based on the analysis of the fault mechanism, the dynamic system is introduced to establish the cause and effect network map of single fault, confirm the structure of system, and establish the equation of system dynamic model. the simulation soft - ware stella is applied to simulate the system model, the dynamic behavior and characteristic of the system have been analyzed
故障的發生往往存在復雜的因果關系，本文在進行故障機理的分析基礎之上，運用系統動力學方法建立單一故障的因果關系圖，確定系統的結構，建立系統流圖方程式，並運用計算機模擬軟體stella進行系統模擬，對其系統的行為模式和特性進行分析。
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