low frequency compensation 中文意思是什麼

low frequency compensation 解釋
低頻補償
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • compensation : n 賠償；補償（金）；報酬 （for）；〈美國〉薪水，工資 （for）; 【機械工程】補整；【造船】補強。com...
  1. Secondly, according to the character of this kind of harmonic, the solutions of power filter are deeply analyzed and an optimized topology for series connected hybrid power filter is obtained. by pwm technique, midfrequency transformer and the principle of the magnetomotive force ( mmf ) compensation, the problem to the transfer of the low - frequency harmonic power compensatory signal in the series apf is solved, in technique

    其次，針對acem系統特有的「電源諧波」特性，深入分析了濾波器方案，得到了一種適用於acem系統諧波抑制的串聯混合型有源電力濾波器優化拓撲結構，並採用了pwm調制技術、中頻注入變壓器和磁勢補償原理有效地解決了串聯apf中低頻諧波功率補償信號傳輸的難題。
  2. The electric power harmonic comprehensive control system with low cast and high security is applied in this article. it adopts that sourced compensation links with non - sourced compensation herewhich the former is realized by high frequency pwm control technology and the latter is carried out by crystal switch formed by non - flow and over - voltage. it can realize stepless modulation with imaginary power, mightiness compensation of harmonic and negative electricity, and circuitry consumption debasing are achieved

    提出採用有源補償與無源補償相結合的電力諧波綜合治理技術及裝置，無源部分採用無涌流和過電壓的晶閘管控制電容器技術實現，有源部分採用高頻pwm控制技術實現，成本低、可靠性高、可實現無功功率的無級調節、強力補償諧波電流和負序電流，降低線路損耗。
  3. Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation

    措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。
  4. Loading grads is another non - structure coefficient influencing loading characteristics except loading frequency. the low grads characteristics are analyzed deeply by simulation, and found that applying structure invariance principle with acceleration compensation can reduce loading grads effectively. the dissertation also simulates and compares the systems with connect hole of different size, and founds that the size of connect hole has an optimized value

    加載梯度是除了加載頻率之外另一個影響加載性能的非結構上的參數，論文作了大量的模擬分析來研究小梯度加載特性，得出了具有加速度補償的結構不變性原理可以有效的降低小加載梯度時的多餘力矩的影響;通過對具有不同的總壓力流量系數的系統的模擬比較，得出了連通孔的大小在不同工況下存在一個最優的值，其開度需要合理的選擇。
  5. The general statistical results of the study indicated that chinese high school students in general employed a variety of learning strategies to study english at a medium frequency level. compensation strategy, metacognitive strategy and cognitive strategy received relatively higher level of usage, while memory, affective and social strategy were reported to be used less frequently. to find out whether there is any difference in strategy use among high, middle and low proficiency students, anova was employed to analyze the variance of learning strategies among groups of different proficiency

    在比較高中低分組策略運用和高考成績之間的關系時，我們發現高考成績高分、中分和低分組的學生在使用認知、補救、元認知、社會策略時有顯著差異，英語成績高的學生在使用這些策略的頻率上顯著高於低成績組的學生，而在記憶策略和情感策略的運用頻率雖無顯著差異，但也是高分組高於低分組。
  6. In this thesis, the general error sources for psi are analyzed. we find that the relatively low - frequency vibrations at 50hz and lower are the main problem through the analysis of the vibration sources in usual environment. a new vibration compensation method, phase modulating interference fringes fractionizing technology, has been put forward in a creative way

    本文分析了干涉測量技術中存在的主要誤差來源，通過對通常環境下振源特性的分析，得到了對干涉測試影響較大的振源的頻率范圍主要在30hz以下，確定了抗振補償的目標和技術指標是使干涉儀的振動頻率50hz ，振幅1 m 。
  7. In allusion to the coupling influence to system accuracy, this paper brings forward using dynamic robust compensation based on decoupling control. simulation experiments to prove its validity. in allusion to the performance index of simulation table, such as low velocity, high frequency response, high accuracy, etc, this paper analyzes pid control, acceleration feedback, velocity feedback, input signal differential feedforward, and employs compound control strategy including pid control, velocity feedback, position feedback and input signal differential feedforward,

    針對模擬轉臺低速、高頻響、高精度等性能指標的要求，分析了pid控制策略、加速度反饋、速度反饋、輸入信號微分前饋等控制方式，採用pid控制與速度反饋、位置反饋以及輸入信號的微分前饋結合起來的復合控制策略，充分利用反饋和前饋的優勢，對轉臺的位置伺服系統進行研究。
  8. Pin diode used as thermo sensor and heating component in this method, low frequency pulse power amplifier is used to substitute rf power in thermo - resistance measurement, and pulse wide compensation is used in dissipation measurement, then equipment require reduced and flexible of equipment rising

    該方法以pin二極體作為感溫元件和發熱元件，採用功率脈沖源來代替射頻功率放大器對器件進行加熱進行熱阻測試，使用占空比補償法進行功耗測試，大大降低了設備要求，提高了測試設備的通用性。
  9. Heavy interference ， changeable variables and load are the characteristics of film supply system and film receipt system. resolutions for these problems are emphasized in this paper. as usual, the effective method to solve the heavy interference in low frequency and the changeable load is compound control for disturbance compensation

    供片、收片張力伺服系統具有變參數、變負載、強擾動的技術特點，解決這些問題是本論文的重點內容。通常情況下，在解決低頻強擾動、變負載問題方面，最有效的方法是採用按擾動補償的復合校正方式。
  10. The simulation results prove that active power filter can not only eliminate harmonic current effectively, but also have well dynamic compensation characteristics. designing of digital low pass filter and the effect of its cut off frequency on precision of instruction current are discussed in this paper

    模擬結果證明，有源電力濾波器對於三相平衡負載或三相不平衡負載的諧波電流都起到了很好的補償作用；同時當負載電流突變時，有源電力濾波器具有良好的動態補償特性。
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