方波電流 的英文怎麼說

中文拼音 [fāngbōdiànliú]
方波電流 英文
rectangular wave current
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 波 : 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...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 流 : 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...
  • 方波 : katanami
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. An adaptive harmonic current calculation arithmetic for apf using pll - produced reference voltage

    產生參考電壓的自適應諧波電流檢測方法
  2. With adaptive ability, harmonic current detecting approach, based on ann, can accurately and real - timely detect harmonic currents for power network

    基於人工神經元自適應的諧波電流檢測方法，能夠準確、實時地檢測電網中的諧波，且有一定的自適應能力。
  3. Therefore it is the sticking point for solving the problem about separating the duty to find methods by which the customer emission level can be accessed ( the voltage that a customer ' s harmonic current begets at the point of common coupling ) more accurately

    由於劃分的依據主要由用戶與電力系統雙方發射的諧波電流在公共聯接點引起的電壓降的比例決定，因此，尋求對用戶諧波發射水平（用戶諧波電流在公共聯接點所引起的電壓降）的準確估計方法，成為了解決責任劃分問題的關鍵。
  4. Finally, the method of estimating power customer emission level based on binary linear regression is put forward, which make it a condition that harmonic emission is steady at the point of common coupling. combined with power system thevenin equivalent and customer norton equivalent, according to the principle of least squares method, the voltage that a customer ' s harmonic current begets at the point of common coupling can be estimated in the light of the plural correlation of network parameters

    最後，提出了基於二元線性回歸的用戶諧波發射水平估計方法，該方法在假設公共聯接點諧波發射穩定的情況下，結合系統側戴維南等值與用戶側諾頓等值的電路圖，按照最小二乘法原理，利用電網各參數的復數關系推導關于系統側諧波阻抗的二元線性回歸方程，並根據諧波阻抗的估計值求取用戶諧波電流在公共聯四川大學碩士學位論文（ 2003 ）接點產生的電壓降。
  5. Most of the traditional real - time detecting method for harmonic current is based on sinusoidal voltage or locking the voltage phase accurately, which deviating from the real circumstances

    由於傳統的諧波電流實時檢測方法大都是基於正弦的電壓系統或對于電壓波形達到精確鎖相的前提，而現實情況卻往往不是如此。
  6. For a class of shunt - wound active power line conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. the control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. the algorithm is simple and easily implemented

    針對一類並聯型有源電網調節器在分析系統數學模型和控制目標的基礎浙江大學博士學位論文上，提出了模糊滑模控制策略，避免了傳統控制方法中復雜的諧波電流計算，實現對電源電流的閉環控制，該演算法簡單、易於實現，模擬結果證實了變結構滑模控制的有效性。
  7. Areas covered in the review include bonding requirements, lightning protection requirements and harmonic current limits requirements. we are updating the reference list for international standards and adding an index page for quick reference

    今次修訂的內容包括等電位接駁的要求、避雷系統的測試方法及諧波電流的限制，並更新國際標準的參考資料及新加索引等。
  8. Secondly, the paper analyses the virtues and shortcomings of inducing - magnetic mode that use alternating current at 50hz or rectangle - wave current. then the paper suggests that the flowmeter should use alternating current to induce the magnetic whose frequency is adjustable

    其次，在電流勵磁部分分析了傳統的採用50hz交流電勵磁法和方波勵磁法的優、缺點，提出了利用微控制器實現頻率可調的低頻正弦波電流勵磁方法。
  9. In order to understand the lamp ' s negative incremental impedance of characteristics and analyze the stability of ballast / lamp system clearly, the low - frequency ballast system stability with closed loop are analyzed based on the hid lamp frequency - domain model in chapter ii

    為了更好地理解燈的負阻特性並分析電子鎮流器系統的穩定性問題，論文第二章著重從燈的頻域模型出發分析了閉環控制下的低頻方波電子鎮流器系統的穩定性問題。
  10. This paper mainly deals with the design of apf based on harmonic current compensating approaches

    本論文重點研究了基於不同諧波電流補償方法的濾波器的設計。
  11. The pictures of probabilistic characteristic in both sides of impendence matching balance transformers are drawn, and probabilistic density figures are also given. the simulation model of shaoshan 4 electrical tractor is raised, at the same time facing the restriction of probabilistic method, the paper raised that using monte carlo simulation absorbed harmonics currents of the model of electrical tractor and simulated the superposition of low harmonics currents. through compared with real time data, the monte carlo simulation can be confirmed, and the breakthrough point of restriction of using probabilistic method is discussed

    為了有效模擬機車在運行中所產生的諧波電流，本文在matlab的平臺空間中建立了韶山4型電力機車的模擬模型，導入到matlab運算程序中，對低次諧波電流疊加進行模擬，從而證實了蒙特卡羅模擬法仍然是目前較為可靠可行的方法，同時討論了在電牽引系統中針對低次多諧波源疊加使用基於中心極限定理的概率分析方法必須使用相關參數進行修正，即需要和電力機車的帶電運行方式有機的結合在一起。
  12. On the base of analyzing the work theory of braking system and the ac servocontrol technologies, permanent magnet brush - less motor is used as the electric drive component, the aircraft slippage ratio adjustor and permanent magnet brush - less motor ( pmbm ) speed / current adjuster is made to construct a tri - loop control system

    在詳細分析飛機剎車系統的工作原理和交流伺服技術的基礎上，採用稀土永磁無刷方波直流電動機作為驅動部件，飛機期望滑移率控制和電機轉速、電流控制的三環控制方式。
  13. Apf can achieve dynamic compensation for harmonics and reactive current, and the compensation performance is not affected by the impedance of power grid, it has advantages as follows, fast response, high controllability and adaptability, etc. brief illuminations of advantages and disadvantages are performed to various harmful current detecting methods and control techniques

    它可實現對諧波和無功的動態補償，其補償特性不受系統阻抗的影響，具有響應快、可控性高、自適應性強等優點。本文對有源電力濾波器的各種諧波電流檢測法及控制方法進行了簡要的優缺點說明。
  14. Test standards : gb17743 - 1999 limit and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment. gb17625. 1 - 1998 the limits for the harmonic current emissions caused by low - voltage electrical and electronic equipments ( equipment input current 16a per phase )

    採用標準： gb17743 - 1999 《電氣照明和類似設備的無線電騷擾特性的限值和測量方法》 ； gb17625 . 1 - 1998 《低壓電氣及電子設備發出的諧波電流限值（設備每相輸入電流16a ） 》 。
  15. Abstract : a simple and high - performance brushless dc generator consisting of a controlled rectifying circuit and permanent magnet square wave motor is presented

    文摘:提出了一種可控整流電路，它與永磁方波電機聯合構成一種簡單、高性能的無刷直流發電機。
  16. As a result of employing multilevel phase - shifted method with zig zag connection in transformer secondary, in the primary the current harmonics their orders are lower than 6m 1 are eliminated ( m is the number of power cell each phase ). in the inverter side because of using pulse shifting pwm control, the equivalent switch frequency of output is m times as high as one h - bridge, so the output voltage waveform of the inverter is near sine with less harmonics

    對于整流電路，由於採用變壓器移相多重化整流，在理論上可以實現曲折變壓器一次繞組中低於6m 1次諧波電流相互抵消（ m為串聯單元個數） ；對于逆變電路，由於採用移相pwm控制方式，等效開關頻率提高m倍，因此輸出電壓接近正弦波，諧波含量較小。
  17. At the end of the thesis, the review on the developments of low - frequency square wave electronic ballast is given. then a novel two - stage low - frequency square wave electronic ballast for hid lamps is proposed with detailed proposed circuit analysis and control circuit description. finally simulation and experimental results are provided to verify its superiority

    論文最後對低頻方波電路的發展概況作了綜述，在此基礎上提出了一種新型的兩級式低頻方波電子鎮流器，並對其工作原理及控制電路進行了詳細的分析，最後通過模擬和實驗結果對電路進行了驗證。
  18. At the end of the paper, a novel two - stage low frequency square wave electronic ballast for hid lamps is proposed with detail design process. simulation and experimental results are provided to verify its superiority

    最後論文提出了一種新型的兩級式低頻方波電子鎮流器，並給出了詳細的設計方法，論文同時提供了模擬及實驗結果對電路進行了驗證。
  19. The research for the real - time detection method of single - phase circuit harmonic current based on dft

    基於離散傅立葉變換的單相電路諧波電流實時檢測方法的研究
  20. In this paper, the classical ann approach is improved because of the introduction of inertial coefficient. now the ann can use a bigger rate of learning. with the introduction of former k times sample values, the improved ann method can only used to detect harmonic currents

    本文對傳統的ann法進行了改進，通過引入慣性系數的方法，提高了人工神經元自適應的學習率，並採用前k次采樣值，使得ann法用於檢測畸變電流中諧波電流。
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