勵磁整流器 的英文怎麼說

中文拼音 [lìcízhěngliúqì]
勵磁整流器 英文
field rectifier
  • 勵 : Ⅰ動 （勸勉） encourage; exert oneself Ⅱ名詞（姓氏） a surname
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 整 : Ⅰ形容詞1 （全部在內; 完整） whole; all; complete 2 （整齊） neat; tidy; orderly Ⅱ動詞1 （整理; 整...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 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
  1. The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter, and the excitation voltage are chosen to be control variables. the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs. then a nonlinear controller is designed for the system under study according to direct feedback linearization theory

    以整流側觸發延遲角的調節信號、逆變側觸發超前角的調節信號以及發電機勵磁電壓作為控制變量，以直流線路電流、逆變側關斷角以及發電機功角的偏移量作為目標輸出，用直接反饋線性化方法設計了系統的非線性控制器。
  2. This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached

    本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析，推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。
  3. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前，牽引變壓器通常採用差動保護作為主保護，但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障，如故障電流與變壓器處于勵磁涌流、過勵磁， ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分，可能造成保護誤動或拒動，從而危及整個鐵道電氣化系統的安全運行。
  4. The auxiliary modulating signals of the current controller at the rectifier and the extinction angle controller at the inverter, and the reference voltage of exciter are chosen to be control variables. then the all - state feedback linear optimal controller is designed

    以直流系統整流側電流控制器的輔助調節信號、逆變側關斷角控制器的輔助調節信號以及勵磁系統參考電壓作為控制變量，設計了系統的全狀態反饋線性最優控制器。
  5. Aiming at weakness of the former excitation system of ball - mill machine synchronous motor in mill run factory, succeeds in digitization reconstruction for the excitation system by applying advanced siemens 6ra70 rectifier, s7 - 300 plc and profibus - dp fieldbus technique, constructs automation network of the workshop, and acquires better technique and economic benefit

    摘要針對選礦廠球磨機同步電機原勵磁系統的缺點，運用西門子6ra70整流器、 s7 ~ 300plc及profibus - dp現場總線技術對勵磁系統進行了數字化改造，構建了車間自動化網路，取得了良好的技術和經濟效益。
  6. Meanwhile, fully - controlled igbt enables reversible flow of field current and reduce in the size of filter elements of main loop, so that the complete of device becomes smaller and lighter

    而全控式的igbt不僅可實現勵磁電流的可逆運行，而且由於提高斬波頻率，使主迴路濾波器件的體積大大減少，從而使整個裝置體積減小、重量減輕。
  7. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  8. The company mainly produces high - tension and low - tension electric equipment, thyristors electrical machinery soft starter, automatic regulating silicon piles etc. it developed the technology with own patent adopting sun shape heat tube radiators with steam and water separated, and developed the integrated power module unit including thyristors and rectifiers with the technology. the products organization is novel, and it conducts heat rapidly and has solved the difficult problems of heat dissipation in generator excitation and exchange power

    公司主要生產高低壓成套電器低壓動態無功補償裝置晶閘管電機軟啟動自動調壓硅堆等產品。研製開發出了「日」字形汽水分離式熱管散熱，並利用該技術開發了晶閘管整流管一體化功率組件，結構新穎，傳熱迅速，為發電機勵磁交流調功等領域解決了器件散熱難題，產品的各項性能均處于國內外領先水平。
  9. In brushless excitation system, rotating rectifier is likely to occur several faults. but there is not clear linearity relation between the cause of fault and corresponding symptom. and it is difficult to describe their relation with mathematics model

    在無刷勵磁系統中旋轉整流器可能出現各種故障，但故障原因和相應的癥狀之間往往沒有明確的線性關系，也就很難距歷g洲精確的數學模型來描述。
  10. Firstly, the voltage sample signals from ac exciter stator coil were de - noised and filtered by means of decomposition of the wavelet function. secondly, the character frequency region of the rotating rectifier fault was selected clearly with wavelet package decomposition and reconstruction

    先對交流勵磁機定子磁極線圈電壓采樣信號進行消噪濾波，再通過小波包分解和重構進行特徵頻率提取，建立了表徵旋轉整流器故障的特徵向量。
  11. The concerted control strategy of rectifier and inverter is analyzed to keep high modulation degree of spwm, which achieves quick response and high resolution of excitation voltage regulation

    重點分析了整流器和逆變器的協調控制策略，始終保持spwm高調制度，達到勵磁電壓調節的快速響應和高解析度。
  12. The smaller interval is the larger power output is. so in order to be the largest power output, the structure should be as small as possible. as far as the instantaneous heating electromagnetism vortex water heater is concerned, the power which the excitation device outputs is too small, so we adopt two e

    又由於對于即熱型電磁渦流熱器來說，單個勵磁裝置輸出的功率過小，達不到加熱的目的，因而木電磁渦流熱水器採用兩套勵磁裝置，進行雙面加熱，每塊渦流加熱扳的兩表面均有水流過，即整體上採用雙面加熱，四面過流的結構方式。
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