fault bus 中文意思是什麼
fault bus
解釋
故障總線-
Think upon fault of a 220 kv bus surge arrester
母線避雷器故障引發的思考 -
But when fault was occurred, sometimes there would be great loss. for the reason, the paper put forward a microcomputer bus protection scheme suit for mv or lv power system with low current grounding based on the great researching about the working theory of current bus protections and the characteristic of mv or lv system with low current grounding. based on it, the paper has designed the platform of the hardware and the software programs
針對國內目前中、低壓電網大都未裝設母線保護裝置，發生故障不能及時切除時造成很大損失的狀況，本文在廣泛研究當前主流的母線保護動作原理並認真分析了中、低壓小電流接地系統特點的基礎上，提出了一套適合中、低壓微機母線保護裝置的研製方案，並據此選擇、搭建了硬體平臺，設計了軟體功能程序。 -
Jx5 is a complex microprocessor, which contains cache, microcode rom, instruction prefetch unit, instruction decode unit, integer unit, mmx unit, floating point unit, page unit, bus unit, dp logic, apic and so on. it is very difficulty to test a such complicated microprocessor and receive anticipative fault coverage ratio. so, we must add dft in cpu ’ design
Jx5微處理器是一款結構異常復雜的微處理器，它的內部包含有: cache 、微碼rom 、指令預取部件和動態分支預測部件、指令譯碼部件、整數部件、多媒體部件、浮點部件、分段和分頁部件、總線介面部件、雙處理器介面部件、可編程中斷控制部件等。 -
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。 -
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。 -
System of fault diagnosis and monitoring for electric haulage shearer based on field - bus
基於現場總線技術的電牽引採煤機監測監控與故障診斷系統 -
Bus terminal fault
端子短絡故障 -
A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. the process of building the z - matrix of a large - scale power network is set forth in particular in this paper. and the method is employed in the fault computation system successfully
本文為了從演算法上提高故障計算的速度，在完全計及支路互感的前提下，利用節點注入電流與支路電流以及支路電流與節點電壓的關系，提出了一種能夠統一處理互感和無互感線路、快速形成大規模電網節點阻抗矩陣的新方法。 -
This layout can stop the internal arc fault expansion ; can avoid harmful moisture, small animal and dusty interferences. it also has good perfomiance and high reliability. because the heat cannot transmit to the outside of the bus room, a good operation environment for the low space can be obtained
主母線室置於箱體頂部一個單獨的金屬封閉的間隔內，並與10kv開關室、儀表室等間隔相互獨立，為同類產品首創；這種結構可以防止內部電弧故障的擴大化，避免「火燒聯營」事故；防護性能好，防潮、防小動物侵害、防積塵，運行可靠；由於母線室的隔熱作用，為下層空間創造了一個較好的運行環境。 -
As token ring has dual rings, it displays better fault - tolerant capacity than that of bus architecture. employing tokens to pass protocols, token ring is once again a better choice as compared with bus using csmaicd in real time
環形網具有獨特的雙環設計比總線結構有更好的容錯性；而採用令牌傳遞協議又使其在實時性上優于採用載波偵聽多路訪問技術的以太網。 -
Advanced aircraft power system and its control system was introduced and fault tolerant design of data bus was discussed
摘要介紹了先進飛機供電系統及其控制系統的組成，並對數據通信總線的容錯設計進行論述。 -
In the case of a line side fault, prevents the being propagated to the breaker. enables the circuit breaker ' s insulation in installations with insulated bus bars
電源側發生故障的情況下防止電弧傳播到電路器上。在帶絕緣母體排的裝置里，使斷路器進行絕緣。 -
High - voltage air disconnect switches interrupter switches, fault initiating switches, grounding switches, bus supports and accessories control voltage ranges - schedule of preferred ratings, construction guidelines and specifications
高壓空氣斷路開關斷路器開關錯誤初始開關接地開關總線支架和附件控制電壓范圍.優選額定值製造指南和規范一覽表 -
Main research in this text is as follows : this text studies the fault diagnosis system of total structure, regarding usb bus control chip an2131qc as the nucleus, set up the fuel cell of condition monitoring and fault diagnosis system hardware platform
本文主要研究成果如下：本文研究了故障診斷系統的總體結構，以usb總線控制晶元an2131qc為核心，組建了燃料電池狀態監測與故障診斷系統的硬體平臺。 -
For real - time monitoring the each work status of fuel cell, on time discovering every kind of equipment failure of, fuel cell of condition monitoring and fault diagnosis system adopts the usb bus system to set up the hardware platform, regarding neural network theory as foundation, creates fault diagnosis model and algorithm, and joining together both of the advantage, guarantees the safe and dependable running of fuel cell system
為了能夠實時監測燃料電池的各個工作狀態、及時發現各種可能出現的設備故障，燃料電池狀態監測與故障診斷系統採用usb總線系統搭建硬體平臺，以神經網路理論為基礎，建立故障診斷模型與演算法，把兩者的優點充分結合，保證了燃料電池系統安全可靠的運行。 -
( 3 ) an ert experiment system is developed base on the new resistance measuring circuit. this system is entirely designed as a field - bus instrument. instructions are sent from the pc to execute some work such as parameter configuration, fault - checking and data - acquiring
（ 2 ）基於該新型高速微弱電阻變化測量電路研製了一套完整的電阻層析成像系統，該儀表完全基於工業現場儀表模式設計，上位機通過rs232 rs422總線向下位機發送指令完成故障檢測、參數配置、數據採集等各種功能。 -
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暫態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暫態信號的衰減特性。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暫態保護原理和判據存在的問題，提出了新的實現方案，並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據，可以準確區分故障線路和非故障線路，實現超高速暫態電流保護，計算更為簡單方便，計算速度更快。 -
Distributed rolling force signal acquisition and fault diagnostic system based on field bus
基於現場總線分散式軋制力信號採集及故障監測系統 -
This scheme fully considers the internal structure of jx5 microprocessor, at the same time, the processor ’ s processing ability, address and data bus architecture is efficiently utilized. so with the minimal testing cost, a strong fault testing and trace debugging ability is provided to meet the jx5 processor ‘ s testing demand
該方案充分考慮了jx5的內部結構，有針對性的選擇了一系列成熟可靠的可測性技術和方法，經過精心組合搭配，並充分利用jx5所具有的處理能力和cpu特有的地址、數據總線結構，在盡量少的增加測試開銷的前提下，提供了很強的故障測試和追蹤調試能力，很好的滿足了jx5對測試的需求。 -
The design of the power supply on - line fault diagnosis system based on can bus for armored vehicles
總線的裝甲車輛電源系統在線檢測設計
分享友人