脈動慮波器 的英文怎麼說

中文拼音 [màidòng]
脈動慮波器 英文
ripple filter
  • : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
  • : Ⅰ動 (思考) consider; ponder; think over Ⅱ名詞1. (擔憂; 發愁) concern; worry 2. (姓氏) a surname
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. The correlative items of dc filters are researched on the basis of gezhouba - shanghai hvdc transmission project. in the analysis the three - pulse model is used to simulate converter, which takes into account the impact of the stray capacitance. the harmonics distribution on dc lines is simulated accurately, especially the harmonic ignored in old models

    本文以葛上直流輸電工程為基礎,研究直流濾設計中的相關問題,採用考了雜散電容的三模型來建立換流站模型,更為準確地模擬出直流輸電線路上的諧分佈情況,尤其是模擬出舊模型中忽略的次(為自然數)諧,為直流濾的設計提供了更精確的數據和判斷依據。
  2. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念,建立了正弦寬調制( spwm )逆變供電異步電機,考主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變-異步電機系統能量轉換角度出發,提出通過檢測逆變輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  3. Based on the linear filter technology of random process, artificial wind speed processes are generated with the autogressive - type simulation method, which consider time and spatial correlativity. then the time history record of fluctuating wind pressures are obtained considering the velocities coupling and the added air mass

    採用線性濾法中的自回歸模型及參數識別技術模擬了多維風速時程,風速轉化為風荷載時考風與結構的速度禍合、空氣附加質量等因素。
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