電壓變量器 的英文怎麼說

中文拼音 [diànyābiànliángqì]
電壓變量器 英文
voltage transformer
  • 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。
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 電壓 : voltage; electric tension; electric voltage
  1. A svpwm control algorism for three - level inverter and its simulation

    三電平逆變器空間電壓矢量控制演算法模擬研究
  2. Based on the tms320f240 controller produced by ti company, the hardware and software designation of the symmetrical voltage space - vector pwm is presented. designed a digital controller with tms320f240 to modulate the speed of the motor, in which the keyboard and led display are bedded. it can be to set the frequency of motor and display the run frequency of motor in real time

    基於ti公司的tms320f240控制晶元，介紹了對稱空間電壓矢量硬體設計和軟體設計，採用tms320f240設計了一款用於電機變頻調速的數字控制器，該控制器上設計有鍵盤和led顯示，可以設定和動態顯示電機運行頻率。
  3. Undershoot undershoot refers to the amount by which voltage or frequency drops below the nominal value as the voltage regulator or governor responds to changes in load

    下超調下超調指電壓調整器或控制器在應對負荷變化時，電壓或頻率低於額定的量。
  4. This measurement amplifier with relay outputs works as a uniform voltage amplifier for strain gauge measuring bridges

    這款測量放大器帶有繼電輸出，它像恆定電壓放大器那樣工作，用於應變測量電橋。
  5. All sorts of imperceptible factors making the system get worse, including the harmonic of the inverter and magnifying of dv / dt over long cable and the effects after applying the inverter. i applied the three - level main circuit structure to the esp system, so that the high voltage problems resulted by low endureing voltage can be solved, at the same time avoided the voltage distributing because of devices in series

    為此本文將三電平主電路結構運用到潛油電泵變頻系統中，以解決由於當前器件耐壓較低而要求實現中高壓問題，同時避免了由於器件串聯而引起的均壓問題，具有諧波含量較二電平變頻器要低和體積較低壓單元串聯方式要小等特點。
  6. The svpwm method has been adopted in the pmsm speed control, also to obtain the good results in cooperation with the chopper control

    永磁同步電機變頻調速採用空間電壓矢量pwm方法，並與斬波器協調控制達到良好控制效果。
  7. Novel dead - time compensation strategy for space voltage vector pwm inverter

    一種新穎的空間電壓矢量調制逆變器的死區補償方法
  8. In the reform of the power grid of north mining bureau, the active power line conditioner was used for meeting with the requirement of power supply quality and the requirements of voltage changing and sensitive load in power transmission

    摘要為滿足礦務局供電電能質量的要求和電能傳輸中的電壓變化和敏感負載的需求，在礦務局北網電網改造中採用了有源電力調節器。
  9. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。
  10. The pt secondary loop voltage drop is a changing amount and has the characteristics of indirection and certain randomness. the second, according to the cause of pt secondary loop voltage drop, the different methods to reduce the pt secondary loop voltage drop were analyzed and the conclusions are draw as below : 1. changing bigger section wire and maintaining the connector plugs regularly can reduce the pt secondary loop voltage drop effectively, but ca n ' t guarantee which meets the relevant rules

    首先，通過對電壓互感器二次壓降的形成機理進行分析，得出以下關於二次壓降的相關結論： 1 、電壓互感器二次壓降等於二次迴路阻抗和迴路電流的乘積； 2 、電壓互感器二次迴路阻抗分為元器件自身阻抗和接觸阻抗兩部分，且接觸阻抗佔主要部分，從而使得電壓互感器二次迴路阻抗具有動態特性，而且具有一定的隨機性； 3 、電壓互感器二次迴路電流與二次負荷和迴路阻抗大小相關，因而二次迴路電流也是變化的； 4 、電壓互感器二次壓降是一個變化量，且具有單向性和一定的隨機性。
  11. The background of this dissertation is based on a project of researching and developing a high voltage series h - bridge multilevel converter, which drives an induction motor of 6300v, 2240kw for driving a water flooding pump in taigang. the research work on high voltage high power series h - bridge multilevel converter has been carried out by theory analysis, computer simulation and experiments

    本文以太鋼某廠額定功率2240kw ，額定電壓6300v注水泵電機變頻調速科研工程為背景，從理論分析、計算機模擬和裝置實驗幾方面入手，對高電壓大容量串聯h橋多電平變頻器的理論和工程應用技術進行較深入研究。
  12. The multi - level ( ml ) converter has the advantages such as low voltage stress for power devices, smaller output filters and reduced harmonic content of the output voltage, it is very suitable for high voltage and high power conversion applications

    多電平變換器具有電壓應力低、輸出濾波器小及輸出電壓諧波含量小等優點，特別適合於高電壓大功率的應用場合，近年來正受到越來越多的關注。
  13. We discussed the four - legged inverter with space vector modulation ( svm ) to aim at three - phase four - line output ; we introduced the principle of three dimensions svm, and attained the related control scheme. with the illustration of 15kva vscf power inverter, we tested and verified that the inverter system under 3d svm control can realize the three phase four line output and linear voltage regulating

    針對三相四線輸出的電源系統，對採用空間矢量控制的四橋臂逆變器進行了深入研究，對三維空間矢量調制方案進行了分析求解、模擬，並給出了適用於15kva變速恆頻電源變換器的解決方案，實現了變換器的三相四線輸出以及線性調壓。
  14. Prototype of the symmetrical typical voltage space - vector of open - loop variable frequency speed system is designed by using the tms320f240 digital controller and the ipm ( intelligent power model ), with which had a exam on the motor and the experimental results are also given. from the results we can conclude that the results are according with the theory analysis

    利用ipm智能功率模塊，設計了採用基於tms320f240數字控制器的對稱空間電壓矢量的開環變頻調速系統的原理樣機，對電機進行了空載實驗，給出了它們的實驗結果，實驗結果和理論分析相一致。
  15. After the mathematical model of asynchronous electromotor is build, the method of space voltage vector is taken to discuss the essential principle and structure, and arithmetic of direct torque control, and the application of circular magnetic chain self - operated control and the technology of sensor without velocity in direct torque frequency conversion timing are emphasized

    在建立異步電動機的數學模型之後，採用空間電壓矢量分析方法討論了直接轉矩控制的基本原理結構及其演算法，著重研究了圓形磁鏈自控制和無速度傳感器技術在直接轉矩變頻調速中的應用。
  16. The reactive power optimization compensation is to find the suitable compensation place and the best compensation capacitance by adjusting the generator bus voltages, transform taps and reactive compensation capacities in the condition of satisfying power load requirement, which can guarantee the secure and high quality power for consumers. the improved genetic algorithm is applied in this thesis according to the features of reactive power optimization of high voltage transmission bus, which are the non - linear problems with multi - variables and multi - restrictions

    電網無功優化補償是在有功潮流調度給定的情況下，以負荷節點電壓和線路輸送無功功率作為狀態變量，運用優化演算法，調節發電機節點電壓、變壓器可調分接頭和無功補償裝置，在滿足電力負荷的要求下，尋求合理的無功補償點和最佳補償容量，保證電網能夠安全、優質地向用戶供電。
  17. Abstract : the rechargeble batteries are used for backup power internal electrically equipments and instruments. but batteries lifetime usually is shorten by overwork and then malfunctions of equipment are induced. to avoid the complexion described above, the protection circuit against overwork is designed. it is based upon the voltage comparator and regulator. it will light up a red led when the volume of the batteries discharged close upon 50 % ; it will switch off the load automatically when it discharged closing to 80 % of their energy capacity, thus overwork of batteries can be avoided and lifetime may be extended

    文摘:用蓄電池做后備電源的系統（或設備） ，常因過放電導致電池提前報廢而造成設備故障.根據電池電壓隨容量變化的規律，利用電壓比較器和電壓基準源設計製作了電池放電保護電路，當電池放電量接近容量的50 %時，啟動預警信號；當電池放電量達到容量的80 %時，電路自動切斷負載，防止電池過度放電，延長電池壽命，保證系統（或設備）在供電恢復正常后能正常運行
  18. 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。
  19. This dissertation overviews the current development situation of high voltage high power converter, and introduces the topology structure and working principle

    本文綜述了高電壓大容量變頻器技術的發展現狀，給出了串聯h橋多電平變頻器的主迴路的拓撲結構和工作原理。
  20. The series h - bridge multilevel converter has the advantages of high output voltage, high power, lower harmonic content in line and motor sides and high input power factor

    串聯h橋多電平變頻器具有輸出電壓高、功率大，輸入側和輸出側諧波含量小，輸入功率因數高等特點。
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