換位擾動 的英文怎麼說

中文拼音 [huànwèirǎodòng]
換位擾動 英文
transposition disturbance
  • 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
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 換位 : conversion; transposition; replacement; trans-situaition; commutant; change of positions
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. Relaxor ferroelectric single crystals, such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ), have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties. such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers, actuators and micro - positioners, making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications. however, it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data

    新型弛豫鐵電單晶鈮鎂酸鉛（簡稱pmnt ）或鈮鋅酸鉛（簡稱pznt ）是一類新興的功能材料，其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電致伸縮系數，可完全代替傳統的壓電陶瓷作為超聲換能器、致動器、微位移器等，使其成為鐵電領域的研究熱點，但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。
  2. The control system of mould level is crucial to improve the slab quality in the continuous casting process, pid controller is used in the traditional mould level control, and it has some defaults, such as : at the start - up or finishing period of casting or during the changeover of tundish, pid control has a bad effect, its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate, and pid control can not overcome the disturbances resulted from the change of casting speed

    結晶器液位控制系統是提高連鑄產品質量的關鍵環節，傳統的連鑄機液位控制方法採用常規的pid控制，存在如下不足：開始、結束澆注和換中間罐澆注時，控制效果差，超調量大，過渡時間長；塞棒頭和浸入式水口被腐蝕后引起控制精度差；浸入式水口堵塞物的突然脫落所引起的液位劇烈波動；無法克服拉速波動引起的擾動。
  3. In this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance

    引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能
  4. Abstract : in this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance

    文摘:引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能
  5. This type of electric valve actuating controller with the core of micro controller 80c31 possesses not only the functions of a normal regulating device, such as testing, detecting, controlling and regulating, but more functions which helps to realize the remote controlling, the real - time display of various parameters, the diagnosis of fault and the failure protection and the soft judging of reference parameters coming from remote control center

    它以單片機為控制和接受遠程控制信號的核心部件，不僅具有常規調節儀表的檢測、控制、調節功能，而且由於單片機的可編程，使其更具智能化。系統功能包括閥門控制、實時顯示閥位、閥門狀態監測、故障診斷、失效保護及給定值無擾動切換的軟體判定等多種功能。
  6. Aiming at the feature of cm interference in power converters, a new approach ? intrinsic dynamic nodes potential balance is proposed. by building node pair with balance potential and making use of the intrinsic stray capacitor of power semiconductor devices, the cm current can be suppressed effectively

    在對共模干擾建模的基礎上，提出了內在動態節點電位平衡的思想，其思路是通過在電路內部構造動態電位平衡節點對，並利用電路中功率器件固有的對地分佈電容使得電路中的共模干擾電流互相抵消，從而抑制功率變換器的共模emi 。
  7. Power quality disturbances detection based on kalman filter residuals

    基於小波變換模極大值的電能質量擾動檢測與定位
  8. The application of wavelet transform in power quality disturbance detection and location

    小波變換在電能質量擾動檢測與定位中的應用
  9. During unit startup and load is lower than 15 %, drum level is controlled by feedwater control valve, feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 %, feedwater control valve is closing at fixed speed determined by function module, main motor - operated - valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 %, control valve is closed fully, and main motor - operated - valve is open fully, drum level is controlled by one pump ; when load is more than 50 %, first pump is kept in operation, second pump is putting into operation automatically and

    在機組啟動、沖轉及機組並網至15 %負荷階段，給水泵維持在最低安全轉速下運行，汽包水位由低負荷給水調節閥自動控制; 15 %至25 %負荷階段，給水調節閥由函數模塊按照一定的速率自動平滑關閉，主給水電動門自動打開，汽包水位控制方式自動無擾切換為給水泵自動控制;負荷在25 %至50 %階段時，給水調節閥已完全關閉，主給水電動門已完全打開，水位控制已全由單臺給水泵承擔;負荷大於50 %后，在第一臺給水泵運行的同時，第二臺給水泵自動無擾投入。
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