逆流交換機制 的英文怎麼說

中文拼音 [liújiāohuànzhì]
逆流交換機制 英文
countercurrent exchange mechanism
  • : Ⅰ形容詞1 (方向相反) contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 (抵觸; 不順從) go aga...
  • : 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...
  • : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
  • : 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
  • : machineengine
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  • 逆流 : anarrhea; backset; backwash; contra flow; counter flow; eddy; receding; counter current; reverse ...
  • 機制 : 1 (機器製造或加工的) machine processed; machine made 2 (機器的構造和工作原理; 有機體的構造、功...
  1. The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced

    論文第二章首先簡單介紹了異步電動變頻調速技術的發展概況,在回顧電梯液壓控系統節能技術的基礎上,介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控系統研究」的基本原理,分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式;詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計,重點研究了液壓動力泵站的結構設計、液壓泵馬達可性問題及其選型設計計算、蓄能器迴路泄漏油損失理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉裝置的設計、多功能集成控閥組的設計等內容;最後簡單介紹了本課題矢量控變頻控櫃的外部附件電氣接線、計算及數據採集系統的硬體設計等內容。
  2. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電原理與脈寬調技術,選用智能功率模塊ipm作為變開關器件,輸出脈沖勵磁信號,以調節勵磁轉頻率和勵磁電大小為手段,實現對磁場旋轉頻率和磁場強度大小的有效調節,並通過閉環反饋實現閉環恆
  3. The constitution, interface and control principle of main circuit, rectifier control module, inverter control module, generator ' s rotor speed and rotor position measuring module, information exchange module are discussed. specially, the methods of implementing signals level match in multi - voltage system, synchronizing with pc in parameters measurement and measuring rotor speed and rotor position with high precision are explained in detail

    文中討論了主電路、整器控模塊、變器控模塊、電轉速和轉子位置測量模塊以及信息模塊的組成、介面方法和控原理,詳細說明了系統中實現不同電壓等級間信號電平匹配的方法、系統與上位進行同步參數測量的方法以及實現高精度電轉速和轉子位置測量的方法。
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