電壓切換 的英文怎麼說

中文拼音 [diànyāqiēhuàn]
電壓切換 英文
voltmeter switch
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 壓 : 壓構詞成分。
  • 切 : 切Ⅰ動詞1 （合; 符合） correspond to; be close to 2 （用在反切后頭 表示前兩個字是注音用的反切）見 ...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 電壓 : voltage; electric tension; electric voltage
  1. The controller can get data acquisition of the voltage, current, light intensity, and temperature expect the seriatim switch

    該控制器除了具有逐路切換充電控制功能外，還具有電壓、電流、光強、溫度和風速等實時數據採集功能。
  2. The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems

    艾默生網路能源產品涉及通信電源、印刷板板裝電源、客戶定製電源、 ups 、機房專用精密空調、戶外一體化通信機櫃、自動切換開關、動力網路保護產品、蓄電池、低壓配電和精密配電櫃、動力設備及環境監控系統、電力操作電源、交流變頻調速器等領域。
  3. To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error

    鋁電解生產現場電磁干擾非常嚴重，為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心；採用浮地接入方式消除槽電壓信號中的共模成分；設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾；用最小二乘法進行曲線擬和以降低測量的系統誤差。
  4. Firstly, the whole scheme of the transducer is designed, the transducer includes capacitance / voltage converting, ripple - control capacitor switching, magnify - multiple switching, a / d converting, singlechip, photoelectric isolation and rs - 485 serial communication, etc. the measurement of microcapacitor is the key technology of transducer

    首先對變送器部分進行了整體的方案設計，變送器由電容/電壓轉換、紋波控制電容切換、放大倍數切換、 a / d轉換、單片機、光電隔離和rs485串口通訊等幾部分組成。
  5. Finally, the prototype of closed - loop control system of mc has been designed. a seris of experiments have been made, and the results show that the closed - loop control of mc presented here is correct. also, the mc closed - loop systems based on the method can be applied to the variable frequency power supplies

    最後，製作了輸出電壓有效值控制矩陣變換器閉環系統的原理樣機，進行了一系列實驗測試，結果表明採用雙空間矢量策略矩陣變換器實現輸出電壓有效值閉環控制是正確有效的，輸出電壓有效值控制矩陣變換器閉環系統作為變頻電源設計也是切實可行的。
  6. This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved

    本文提出了一種採用修補spwm正弦表值的方法，用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變；逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器，提高了系統的動態響應指標；系統設計了完善的保護措施，並具有市電電網的故障診斷功能。
  7. The basic principle of hydraulic system of tb80k trimming is set forth. the changing process of engaging pressure is analyzed and studied, the engaging pressure is produced in transmission controlled by electro - hydraulic proportion when shift gear is switched ; the hydraulic control system used in remote control is studied and designed applied with electro - hydraulic proportional control theory and on the basic of the hydraulic characteristic of tb80k trimming dozer, more and more electro - hydraulic reform projects and assumption are present

    本文闡述了tb80k推耙機液壓系統的基本原理；對電液比例控制變速箱換檔在各檔之間切換的接合壓力變化過程進行試驗分析研究；應用電液比例控制理論，結合tb80k推耙機液壓系統結構特點進行遙控液壓控制系統研究和設計，並提出了多種電液改造方案和設想。
  8. In order to ensure the whole system operate economically, power department equip transformer with onload tap changer and shunt capacitors for most distribution substations, according to the operating condition, adjusting the position of transformer taps and capacitors can control the variation of voltage and reactive power exchanger of distribution substations and power system in certain extent

    為確保整個系統運行經濟性，降低網損，電力部門在大多數變電站配置了有載調壓變壓器和並聯補償電容器組，根據運行情況適當調節變壓器分接頭的位置和投切並聯補償電容器組，可以降低電壓變化和變電站與系統的無功交換控制在一定的范圍內，確保供電質量和電網運行的經濟性。
  9. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  10. In this device, a small voltage would switch the semiconductor between nonmagnetic and ferromagnetic states

    在此元件中，稍微施加電壓即可使半導體在非磁與鐵磁兩種狀態之間切換。
  11. Pdf low - voltage switchgear and controlgear - part 5 - 3 : control circuit devices and switching elements - requirements for proximity devices with defined behaviour under fault conditions

    低壓開關設備和控制設備.第5 - 3部分:控制電路器件和切換元件.在故障條件下具有規定功能的接近開關
  12. Pdf. 1 low - voltage switchgear and controlgear - part 5 - 3 : control circuit devices and switching elements - requirements for proximity devices with defined behaviour under fault conditions ; amendment 1

    低壓開關設備和控制設備.第5 - 3部分:控制電路器件和切換元件.在故障條件下具有規定功能的接近開關
  13. This solution uses digital switch to switching the current and voltage, the current circuit can not be broken when switching, and it is safety to the operator and device

    採用數字量切換方式對電壓、電流進行切換，使得電流迴路切換沒有開路的可能，防止了電流迴路開路對人身及設備造成的危害。
  14. Alarm input signals are : contact open - circuit alarm, contact closed - circuit alarm, ttl level signals. alarm output modes are : flash alarm, sound alarm, relay contact output alarm optional for memory function or not it adopts high brightness led or long - lifetime planar luminotron separate indicate the current condition for every loop

    各輸入埠均具備萬能信號和單通道輸入功能，且各路可同時輸入不同類型的信號，輸入信號全切換時只需通過儀表菜單的簡單選定，即可實現不同類型輸入信號各種熱電偶熱電阻標準電壓標準電流信號之間的輕松切換，提高了儀表的通用性和可靠性。
  15. Low - voltage switchgear and controlgear - part 5 - 7 : control circuit devices and switching elements - requirements for proximity devices with analogue output

    低壓開關設備和控制設備.第5 - 7部分:控制電路器件和切換元件.帶模擬輸出的接近設備的要求
  16. Specification for low - voltage switchgear and controlgear - control circuit devices and switching elements - electromechanical control circuit devices

    低壓開關設備和控制設備規范.控制電路器件和切換元件.機電控制電路器件
  17. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  18. For ballasts with rest mode facility changeover from rest mode to normal mode shall occur automatically at greater than 0. 9 times the off cycle extended to 3 s and the ballast put into the rest mode after 2 s of the off periods in the 500 switching cycles

    帶有休止狀態裝置的自容式應急燈具，從休止向正常狀態的轉換應在不大於0 . 9倍額定電壓下自動運行3秒，在500次開關周期結束切斷電源的2秒時間內應使自容式燈具進入休止狀態。
  19. This paper makes the feasibility design and study of the dtc ( direct torque control ) system based on analyzing some important parts, such as the arithmetic model of asynchronous motor in - coordinates, the choice of voltage vectors, and flux - linkages models, etc. the research work in this paper is described as follows : 1 analyzing of the dtc theory : material about the development and theory of dtc, the composing of dtc - system are presented in this paper

    本文在詳細分析了定子坐標系下的異步電動機數學模型、電壓空間矢量和磁鏈觀測器的基礎上，利用直接轉矩控制技術，構建了基於dsp的直接轉矩控制系統。論文的主要工作包括以下三個方面： 1直接轉矩理論分析研究：針對直接轉矩控制理論在低速范圍轉矩觀測器和轉速波動等問題，採取了滯環模式切換，矢量細分等改進措施。
  20. The differential protection is locked when switching the current and voltage, and the misoperation of differential protection is reduced

    在電流、電壓迴路切換時自動閉鎖差動保護，減少了保護誤動的機率。
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