線路故障模擬 的英文怎麼說
中文拼音 [xiànlùgùzhàngmónǐ]
線路故障模擬
英文
cfs circuit failure simulation- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 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
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 線路 : 1. [電學] circuit; line 2. [交通運輸] line; route
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
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Traffic accident simulation and control technology are simulating the environment and driving process, simulating the operation situation of accident vehicle on the road, making kinematic analysis based on data such as vehicle collision, stop location and collision narks, to determine the normally running line and the speed of vehicle before the accident, presume the collision speed course reversely, use 3d graphics technology to reappearance accidents process, provide scientific theory for the analysis of the cause, make corresponding protect safety technology and strategy
交通事故模擬與控制技術是對駕駛環境與駕駛行為進行模擬,模擬車輛在道路上發生事故的運行情況,根據車輛碰撞位置和停止位置、車身碰痕等事故現場數據進行運動學分析,確定車輛在事故前正常行駛時的速度和路線,逆向推定碰撞車速及事故過程,應用三維圖形技術再現交通事故過程,為分析事故成因,提出相應的交通安全保障技術和策略奠定科學理論依據。Fault location techniques are used to pinpoint location of the fault on a tra - nsmission line. transmission line faults must be located accurately to allow maintena - nce crew to arrive at the scene and repair the faulted section as soon as possible, which can relief the burdens of patrol personnel and reduce the revenue losses due to power outage. the accurate fault location alogrithms play an important role in power system safety, economy and reliability. in this paper, diversified fault location algorithms are summarized. according to the principles of algorithms, they can be classified into two categories : impedence based algorithm and traveling wave based algorithm. based on the analysis and comparission of each algorithm, the corresponding merits and app - lication limitations are presented
精確的故障定位為現場巡線工作人員及時提供準確、可靠的信息,減輕人工巡線的負擔,同時加快線路的恢復供電,減少因停電造成的綜合經濟損失,為提高電力系統運行的安全性、經濟性和可靠性發揮重要的作用。本文總結了現有的各種測距方法,根據測距的原理將其分為阻抗法和行波法兩大類,對各種演算法的優缺點及適用范圍進行了分析,在此基礎上提出了一種組合的測距方案,並對演算法進行了模擬分析。In fact, the way of using dsp to execute karlman filter in realizing distance protection has past simulating test, and acquired satisfying effect
在山東鄒縣濰坊500kv的輸電線路上通過了故障暫態模擬實驗。該方案取得了滿意的效果。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。The thesis devote to desams ( double - channel electro - hydraulic servo adaptive motor simulator - rig ) condition monitoring and accessing in theory and application. based on short signal analysis theory, the thesis explores the representative vibration faults of complex and non - linear equipment by both theoretical and experimental methods systematically
本文基於簡訊號分析技術,針對電液伺服道路模擬試驗臺運行狀態監測和狀態評價,對簡訊號的最大熵譜分析技術在自復雜非線性系統的實時在線故障診斷領域的應用進行了系統的理論和實驗研究。Arc - grounding fault line selection is the paper ' s key point and innovative point about small current grounding power systems. a lot of simulations are made based on the change rule and the character of fault voltage, fault current. the simulation study declare that the use of the method of wavelet analysis can select the fault line when the arc - grounding fault take place, it will play a important directive role in the research of the protection equipment
對小電流接地系統電弧故障的選線模擬是本文的重點,也是一個創新點,本文從研究的角度,在深入分析電弧接地時故障電壓、電流的特點和變化情況的基礎上,進行了大量的選線模擬,模擬表明電弧故障時,小波分析方法也能準確地選出故障線路,這對研製高性能的接地保護裝置將起到重要的指導作用。Assisted with the sensitivity of the linear analog circuits, the feasibility of parametric faults detection was analyzed through the maximum fault errors acquired at the sensitive frequencies, a stimulation matrix and its stimulation expression were put forward on the test points information
摘要從線性模擬電路靈敏度的概念入手,分析了通過獲取敏感頻點激勵下的最大故障誤差來檢測電路參數故障的可能性,提出了一種針對測試頻率和測點信息的激勵矩陣。In the paper, based on the existing literature research foundation an analog circuit catastrophic fault location approach by using feedforward networks with back ? propagation learning is realized. by this approach, the simulation require ments before test are reduced because fewer training samples are needed, and the fault location process is fast. this method is very efficient in location of single hard fault wit component tolerances. the measureme nt space feature and the general characterization concept of single and double soft fault in linear circuits are presented. according to this concept, a linear circuits soft fault location approach using subhidden layer bpnn is established with element tolerance, and it is shown that this approach is successful in fault location. a double fault feature extraction.,
本文在現有文獻理論研究的基礎上實現了採用bp演算法前向多層神經網路對直流測試下模擬電路硬故障的診斷方法。其特點是採用少量典型特徵樣本作為bp網路的訓練樣本,獲得訓練樣本的代價小,減少了測前工作量,同時診斷速度快,在考慮元件容差時仍有好的診斷效果。文中介紹了線性電路單一軟故障和雙軟故障所具有的電壓增量空間特性和統一特徵概念。Judging by simulation experiments, the approach can accurately on - line detect sensor fault, separate the fault sensors in the meantime, and it can provide system and equipment with temporary predictive signals
該方法採用在線學習訓練網路,並給出傳感器的預測信號,對傳感器是否發生故障做出檢測,模擬實驗證明,該方法對傳感器的故障能在線做出準確的檢測,同時隔離故障傳感器並為系統和設備提供臨時的預測信號。So it is very important to investigate the inverse time characteristic of microprocessor distance protection. this paper emulates all kinds of faults of transmission lines by using emtp, and gets relative current and voltage sample values. then many distance protection thoughts and algorithms are adopted to compare each inverse time characteristic, better arithmetic and set thoughts are got
本論文應用emtp進行輸電線路各種故障情況的模擬,采樣取得保護相關的電壓、電流數據;採用各種距離保護思想、演算法,採用c語言進行計算,比較各自的時限特性,得出反時限特性比較好的演算法及其整定思路;對于各種故障情況,應用相關整定思路進行離線計算,得出各種原理的時間距離特性。And more than 70 % hardware are tested during microcode self - test since the execution of micro program can cover other data paths. boundary scan is designed according to ieee1149. 1, and some other instructions such as degug, runbist are provided to support internal fault testing, online debugging and built - in self - test besides the several necessary insructions. internal scan is implemented by partial scan, through this the boundary of logic component and user - cared system registers can be selected to be scanned
Bist用於測試cpu的微碼rom ,其它ram則利用微碼rom中的微程序進行測試,而微程序的運行則可以順帶覆蓋其它數據通路,從而使高達70 %的硬體得到測試;邊界掃描按ieee1149 . 1標準設計,除必備的幾條邊界掃描指令外,還提供了debug 、 runbist等指令以支持內部故障測試、在線調試及內建自測試;內部掃描採用部分掃描策略,選擇邏輯部件的邊界及用戶關心的系統寄存器進行掃描,從而實現了硬體邏輯劃分,方便了后續的測試碼產生和故障模擬,並為在線調試打下了基礎。Computer simulation shows that the criterion measure effectively locates faults in direct distribution line, and it is also feasible to tree - type distribution system in theory but there are still some problems in practice
經過數值模擬計算分析表明,該方法對直配線的接地故障定位是有效的,對樹形多分支線路的故障定位理論上也是可行的,但實際應用中還有許多重要問題需要進一步深入研究。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暫態電流行波的波折、反射過程以及折、反射系數的特點,提出了新的單端行波故障測距方法,它不僅能夠有效地識別出測距所用的反射波,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行測距;同時模擬阻波器的特徵,設計了低通數字濾波器,對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析,並利用本文提出的單端行波故障測距方法進行故障定位,結論是所提出的測距方法在實際應用中仍是有效的。This particle gives out some detection method, mainly about creation algorithm of detection vector and checking up the fault - cover rate of detection vector by the way of fault simulation. creation algorithm of detection vector contains : pseudo - exhaustive testing, d algorithm, fault dictionary algorithm
本文針對電子線路在使用過程中發生的故障,提出了幾種測試方法,主要講述測試向量的生成演算法及使用故障模擬的方法來檢測測試矢量在故障檢測過程中的故障覆蓋程度。This thesis analyzes the influence of line length and parameters changing on fault location results. lots of simulation results show the error of line length and parameters can cause the great locating error
本文分析了輸電線路長度和參數的不準確對故障定位結果的影響,由大量模擬分析發現,線路長度和參數誤差會導致極大的測距誤差。This paper adopts sequential monte carlo simulation technique and time - varying load model to assess multi - fault reliability of typical distribution network considering line capacitance constraint and power flow of distribution system
本文在考慮線路容量約束和潮流分佈的條件下,採用序貫蒙特卡羅模擬和全年時變負荷模型評估典型配電網多重故障模式的可靠性。Fristly, according to the non - linear characteristics of twelve - phase rectifier, the thesis gives the calculation model for a short circuit in the subway traction power supply networks which provides the academic foundation for the design of the setting values and the simulation of protection. secondly, the thesis designs the dc feeder protection and control of subway, and gives the principle of setting accordingly, after it analysizes the characteristics of electric current under tow load and short circuit and considers severel factors. to validate the rationality of the design, the thesis simulates the transient electric current under two work conditions ( starting and passing the insulation ) ahd short circuit
其次,本文在詳細分析地鐵牽引負荷電流和饋線短路故障電流特點的基礎上,考慮了直流保護系統設計應注意的幾個因素,對地鐵饋線保護與控制進行配置,給出了相應的保護整定原則,並針對某一地鐵供電系統在詳細分析了兩種工況(機車起動與過分段絕緣)的電流暫態過程,得到了電流計算的數字模型,結合前面提出的短路模型,進行了地鐵饋線保護的模擬,經模擬表明本文的保護設計是合理的。In case of complicated dc circuit, any type of symmetrical ac system fault. dc line fault and dc line ' s recovery after fault can be more accurately simulated, and the dc line ' s dynamic response can be better represented. all the above is very important when doing the research on dc power support to ac system under emergency conditions, and has laid a solid foundation for the interaction study which will be met in a hybrid ac / dc power systems
該模型能夠在對交流網路進行機電暫態計算的同時,對直流網路進行電磁暫態的計算,因而能較精確地考察暫態過程中直流線路的動態行為,並可對任意對稱的交流系統故障、直流線路故障以及故障后直流輸電系統的恢復等過程進行模擬,且模擬時間較短,為在復雜系統中研究直流輸電系統與交流輸電系統間的相互作用奠定了基礎。The main purpose of this paper is to research on the diagnosis of the analog circuit with tolerance based on parameter identification, it try to find a novel method of the fault diagnosis of the analog system. in this paper, a procedure for the multifrequency fault diagnosis of analog circuits is presented. generally speaking, for the diagnosis equations are nonlinear, it ’ s very difficult to solve them with high precision
本文的研究重點在於具有容差模擬電路故障診斷的參數識別方法,探索解決模擬電路故障診斷問題的新途徑,介紹了由電路結構來提取故障診斷方程的多頻支路和多頻節點方法,由於故障診斷方程一般情況下是非線性的,因此,傳統的非線性方程求解方法存在精度不高,計算困難的缺點。Second, pwm - fcls are separately installed in the transmission line and the feeders where a short circuit fault may occur. matlab is used to simulate this process
其次,將pwm - fcl分別安裝在發生短路故障的輸電線路以及配電系統的饋線上,使用matlab對這兩種情況進行數字模擬。分享友人