phase bus 中文意思是什麼

phase bus 解釋
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  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • bus : n （pl busses buses）1 公共馬車；公共汽車；客機。2 〈口語〉汽車，機器腳踏車；飛機。3 【電學】信息...
  1. Being the complexity of the industrial ethernet technology, at present it still be in its first phase of development, and it has several different forms. compare with other forms, the traditional multi - protocal converting form has the simplest realization. it is realized by gateway or agent server to transform information between ethernet and field bus, actually to be a sort of realization that the network is comparted into different layers

    由於工業以太網技術的復雜性，目前還處于起步階段，有多種組網形式。相對來說傳統的跨協議轉換方法實現最簡單，它通過網關或代理服務器進行以太網與現場總線的信息轉換，實際上是一種分層網路的實現機制。
  2. Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo

    本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。
  3. 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。
  4. 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。
  5. This paper considers two controllers with different feedback signals ? the ac current phase angle of converter transformer and the ac voltage magnitude of inverter bus, respectively. pscad / emtdc simulation software is used for the controller testing. the test models used for the analysis are the cigre hvdc benchmark systems with different scr at the inverter side

    為了驗證該控制方式的有效性，本文採用了電磁暫態模擬軟體pscad emtdc ，在國際大電網會議cigre提出的hvdc標準模型上，用逆變側短路比不同的系統對調制控制器的性能進行了模擬測試，調試出了調制控制器的各參數值。
  6. Finally, it calculates the clectrodynamic forces of the continuous enclosure type isolated - phase bus and analyzes the force effect

    最後，對所設計的全連離相封閉母線進行了電動力的計算及校核。
  7. This paper firstly explains the significance of researching the continuous enclosure type isolated - phase bus and analyzes the situations in nation and abroad. it presents the calculating method of the structure designing for the continuous enclosure type isolated - phase bus. at the same time, according to the theory, it provides the calculating programs for defining the dimensions of the bus

    本文首先闡述了研究全連離相封閉母線的重要意義，並結合國內外的現狀進行了分析，提出了全連離相封閉母線的結構設計方法，依據理論計算編制了全連離相封閉母線的截面尺寸的計算程序，可以方便快捷地進行各電壓及電流等級全連離相封閉母線的設計計算。
  8. Meanwhile, it calculates the stress of the continuous enclosure type isolated - phase bus in detail and rectifies the continuous enclosure type isolated - phase bus by comparing the stress with the permitting stress of the conductor in order to check if the designing continuous enclosure type isolated - phase bus is up to the standard

    分析了其受力情況，對全連離相封閉母線的母線導體及外殼的應力做了詳細的計算，並依據母線導體及外殼的許用應力進行校核，檢驗設計的全連離相封閉母線是否符合標準要求。
  9. In conclusion, the designing method of the continuous enclosure type isolated - phase bus in this paper is largely suitable and the analyzing and rectifying methods are practical. it can be a convenient guide to the manufacturers and the practical method for checking products for the customers

    本文的研究工作證明：本課題所確定的全連離相封閉母線計算方法適用性強，分析與校核方法可行實用，可以為生產廠家提供方便實用的理論參考，也可以作為用戶考核產品性能的參考依據。
  10. This program can be used to calculate continuous enclosure type isolated - phase bus of different volt and current conveniently. secondly, it calculates a series of rational continuous enclosure type isolated - phase bus for the external diameter of the enclosure is 900mm, analyzes and calculates the magnetic fields of the continuous enclosure type isolated - phase bus by using limited unit method. from this it acquires the distributions of magnetic fields and magnetic density as well as the eddy current

    其次，以全連離相封閉母線外殼外徑為900mm的情況進行了理論計算，計算了多種預選方案，採用有限元方法對全連離相封閉母線場域的電磁場進行了數值計算，得出了設計母線的電磁場及電密分佈以及渦流等情況，並對所得結果進行了分析。
  11. For the measurement of analog signals such as voltage and current of astg, a filter card for pre - disposing is designed, in order to improve real - time performance, algorithms for ac analog sampling is simplified, and a compensation algorithms for phase error due to sequence - sampling is brought forward. for the measurement of impulse - width signals such as rotor - speed and rotor - position - angle, an intelligent interface card based on isa bus is designed. all programs for measure and control based on c + + are compiled and debugged and the flow for system debugging is summarized

    為了提高實時性，對交流采樣演算法進行了簡化，並提出了由於非同步順序采樣所造成的相位誤差的補償演算法；針對轉速、轉子位置角等脈沖寬度信號的測量，深入分析了測量原理，設計了基於isa總線的智能介面卡；編制和調試了基於c + +的全部測量控製程序；完成了整個系統的調試，並總結了調試方法。
  12. Soft - bus is the outcome of hardware bus technology and the developing of software modularization, as well as the outcome of the developing of software engineering till the phase of component technology

    軟體總線是硬體總線技術和軟體模塊化技術發展的產物，也是軟體工程發展到構件開發階段的產物。
  13. The designed bus controller performs perfectly in the phase of system test. especailly, the communication between bc and psp ( power system processor ) is very successful

    所設計的匯流條控制器功能完善、性能穩定，並實現了與電源系統處理機的聯調，達到了預期的設計目的。
  14. Study on the design of signal phase based on bus priority intersections

    基於公交優先通行的交叉口相位設計方法研究
  15. The measurement system can automatically control the movement of servo motor and communicate with vna through gpib bus to setup the measurement variable automatically, measure the phase of s parameter. it also can progress the measurement data on the background, display the results by graph data, store them in the data files

    系統自動控制伺服電機的運行，對測試探頭完成指定的移動定位;通過gpib總線與矢量網路分析儀器通信，自動完成相關測量參數的設置以及s參數的相位測量;對測得的數據進行后臺處理，將結果以圖形、數據文件的方式顯示、保存。
  16. Free shuttle bus will be arranged at the transport interchange of telford plaza phase 2

    屆時會安排免費穿梭巴士，接載參與論壇的人士往返德福廣場二期運輸交匯處。
  17. This paper also introduces two aspects, one is the use of single - chip computer - intel 16bit as key to realize signal collection, data processing and control of phase selection, the other is the communication of mcu and pc realized by universal serial bus ( usb )

    選相分合閘裝置的設計包括兩部分：一是下位機部分，主要以80c196kc單片機及其外圍電路為主，完成交流信號的採集、數據處理以及對交流電器分合閘的控制；另一部分是單片機與pc機的通訊部分。
  18. The controller takes full advantage of the features of ti tms3201f240xa processor, such as high performance processing capabilities, plenty of peripherals on chip and high real time control. by the vital of these features the fast ac sampling, synchronic pulse, digital shift phase trigger pulse, can bus communication, pid control method and excitation limitations are realized. the pretreatment of the switch signals and the test of the shift phase trigger pulses are realized by using the complex programmable device ( cpld )

    該勵磁控制器充分發揮了tms3201f240xadsp處理器的強大的數據運算能力、豐富的片內外設資源和較強實時控制能力，用單片系統結構實現了快速交流采樣，數字同步脈沖形成， can現場總線網路、以及pid控制演算法和各種勵磁限制等功能；用cpld器件實現了開關量抖動預處理和可控硅觸發脈沖遺漏的檢測，減輕了dsp處理器負擔，提高了勵磁控制器可靠性、抗干擾能力和控制能力；使用vc + + 6 . 0開發的基於windows操作系統的勵磁系統調試軟體，人機界面簡潔友好，使用操作靈活方便。
  19. The conventional rectifiers produce harmonic problem in power system. while three - phase pwm voltage source rectifiers ( vsr ) can provide constant dc bus voltage and get low harmonic distortion of input current. it also has line power feedback capability

    傳統的整流裝置是電網污染的主要來源，三相電壓型pwm整流器具有輸出電壓恆定、能實現單位功率因數運行的特點，甚至可以實現電能回饋電網。
  20. At the same time, it calculates the electrical fields of the continuous enclosure type isolated - phase bus, also acquires the distributions of the electrical fields. by using the results, it can analyze the insulated properties of the continuous enclosure type isolated - phase bus

    同時，對封閉母線的電場進行了計算，得到了其電場的分佈情況，並依據其耐壓情況分析了母線的絕緣性能。
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