磁滯環 的英文怎麼說

中文拼音 [cízhìhuán]
磁滯環 英文
hysteresis loop
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 滯 : Ⅰ動詞（使停滯; 使不流通） stagnate; block up Ⅱ形容詞（停滯; 不流通） sluggish; slow-moving; stagnant
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  1. Standard test method for dc magnetic properties of materials using ring and permeameter procedures with dc electronic hysteresigraphs

    使用d - c電磁滯曲線記錄儀的參數處理和環型材料的d - c磁性能的標準試驗方法
  2. The controller includes two control loops which are outer speed loop ( variable parameter pi adjustment ) and inner current loop ( single - chop current delta - control ). in order to improve system performances, design of digital control system based on dsp is presented. the proportional parameter and integral parameter can be obtained through the design

    整個系統採用變pi參數轉速調節（外環）與單斬電流滯環調節（內環）相結合的雙閉環控制方式，為了得到既快速又穩定的恆速系統，本文還給出了基於dsp的雙凸極永磁電機數字控制系統的設計方案，通過此設計方案可以得到轉速環的比例參數kp和積分參數ki的參考值。
  3. The control tactics of space voltage vector are investigated, and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward. by analyzing the current hysteresis control, the relation between switch frequency, and hysteresis bandwidth and input inductance of pwm rectifier is deduced. by applying instantaneous power theory, the principle of pwm rectifier power control is analyzed, and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized, and the simulation results prove that it is correct

    對常用空間電壓矢量控制策略進行分析，提出了給定參考矢量所在區間判斷的簡化方法，以及電壓矢量作用時間的求取方法；分析了電流滯環控制策略，推導出開關頻率與滯環帶寬以及整流器輸入電感之間的關系；應用瞬時功率理論分析pwm整流器功率控制原理，通過虛擬磁鏈估計有功功率和無功功率，用matlab實現了直接功率控制，並驗證了該控制方法的正確性。
  4. Adopting rotor field - oriented vector control methods, through which make the stator and the rotor magnetmotive forces can be kept orthogonal all along during operation of the bldcm, combining hysteresis current modulation ' s current control advantage and space voltage vector modulation ' s torque ripple attenuation advantage, then designing a sort of bldcm hysteresis current svpwm control method

    摘要研究採用轉子磁場定向的矢量控制方法使無刷直流電動機定、轉子磁勢矢量始終保持正交，結合滯環調制電流控制和空間電壓矢量調制，設計了無刷直流電動機滯環電流svpwm控制方案。
  5. In the proposed technique the bemf waveform of bldcm need to be measured in advance at first, through computer simulation and frame transformation, the optimum q - axis current command is achieved. in order to minimize the torque ripple, the d and 0 - axis current command should be zero. furthermore, through reference frame transformation from dqo - axis to abc - axis, we can get the optimum current command in static abc reference frame

    在這種控制方法中首先測量出電機的實際反電動勢波形，然後通過計算機擬合和坐標變換，求得產生恆定電磁轉矩所需的q軸電流，令i _ d ~ * = i _ 0 ~ * = 0 ，通過坐標變換，得到三相靜止坐標系a - b - c下的參考電流i _ a ~ * ， i _ b ~ * ， i _ c ~ * ，利用電流滯環控制來產生pwm信號，由於這種控制方法中電流不會突變，從而可以較好的抑制轉矩脈動。
  6. In this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents. and using flux tracking method, position open loop, position close loop control system are also studied. and research results indicate that larger current ripples are restricted by means of subdividing space vectors

    本文以永磁同步電動機為研究對象，分別對同步電動機的點動控制、恆頻控制以及升降頻控制進行了分析與研究，研究中採用了電流滯環控制方法，可有效地限制過電流現象；此外採用磁鏈跟蹤法對位置開環和位置閉環的步進控制系統分別進行了探討與研究，研究表明，採用矢量細分后，可有效地減小電流波動。
  7. 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。
  8. In the process of close - loop vector - control system, the author designed a model of current delay - loop pwm vector - control wvf system which includes speed and magnetic double close - loops and rea lized it in simulink

    在閉環控制系統的模擬中，設計了一個速度、磁鏈閉環的電流滯環型pwm變頻調速系統，並且使這個閉環系統在simulink中加以實現。
  9. The new proportional solenoid eliminates the zero dead - zone, and has advantages of high level of linearity, low hysteresis and low energy consumption

    該雙向比例電磁鐵能夠有效消除零位死區，並具有良好的線性度、較小的滯環和較低的功耗。
  10. In the simulation system, the performances have been analyzed when the parameter of torque hysterelic comparator or the hysteretic band of stator flux is changed. the simulat ion of switching between hexagon flux control and circle flux control is also compl eted. in addition, the traditional pi regulator is improved in the paper

    在模擬中分析了轉矩滯環和磁鏈滯環參數的變化對系統控制性能的影響，並且對兩種控制方法在基速范圍內的切換進行了模擬研究，同時在模擬中採用積分分離式pi調節演算法對傳統的pi調節器進行了改進。
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