power-factor correction 中文意思是什麼

power-factor correction 解釋
功率因數校正
  • power : n 1 力，力量；能力；體力，精力；（生理）機能；〈常 pl 〉才能。2 勢力，權力，權限；威力；政權；權...
  • factor : n 1 〈英國〉經銷人；（代客買賣收取傭金的）經紀人；代理商；代辦人；〈蘇格蘭語〉 土地經管人。2 要素...
  • correction : n 修正，改正；校正；矯正；〈古語〉懲罰；勘誤表，補正。 a copy disfigured by numerous corrections ...
  1. Be familiar with hv, mv and lv power distribution systems and power factor correction study & harmonic analysis, ups and dc power systems, power fiscal metering, and all necessary calculations to one project including short circuit calculation and protective device coordination study, lightning protection calculation, generator power calculation etc

    熟悉項目中的高、中、低壓配電系統和功率因素補償研究及諧波分析， ups和直流電氣系統，功率計量，相關計算（包括短路計算和保護裝置協調分析，照明保護計算，發電機功率計算等） 。
  2. One - cycle control of active power factor correction

    單周期控制有源功率因數校正
  3. Power capacitors - low - voltage power factor correction banks

    電力電容器.低壓電力因數校正裝置組
  4. The basic theory for all sorts of power factor correction is analyzed, and the topology and control circuit are studied

    分析了各種功率因數校正的基本工作原理，並從主電路的拓撲形式和控制方式分析了各類有源功率因數校正的方法。
  5. The extensive application of power electronics devices in power system 、 industry 、 traffic and family brings serious current harmonic, this harmonic pollution harms to system and electromagnetism environment. so power factor correction technology becomes a new research hotspot

    隨著各種電力電子裝置在電力系統、工業、交通及家庭中的應用日益廣泛，電網的電流諧波問題也日益嚴重，諧波污染給系統本身和周圍的電磁環境帶來了一系列的危害。
  6. With promulgation and obliging actualization of iec 1000 - 3 - 2 etc. international standards, power factor correction ( pfc ) technique become a hotspot of research in power electronics field. based on average current mode, the paper introduce the design and implementation of a fully digital controlled single - phase boost power factor corrector with fast response. the control - loop circuit is realized using digital control and the corrector can tend to unity power factor, lower current harmonics and high transfer efficiency

    本文在平均電流模式控制的有源功率因數校正技術的基礎上，設計了一種控制電路基於數字信號處理器（ dsp ） 、主電路採用boost變換器拓撲結構的全數字單相功率因數校正器，用數字電路代替傳統的模擬電路來實現對整個迴路的控制，最終使得校正器具有輸入功率因數接近於1 、低電流諧波以及高轉換效率的特性。
  7. The controller can ensure reliable cool start, at the same time meet the rapid activation of the warm start. 3 、 the realization theory of the boost power factor correction that uses quasi - length models, uncertain frequency, and peak current - controlled devices, is derived theoretically

    根據金鹵燈擊穿電壓?時間的關系，提出了一種採用脈沖變壓器的快速啟動方式，既能保證冷燈可靠啟動，同時又滿足了熱燈快速啟動的要求。
  8. And the correction circuit is designed on example of the l6560 power factor correction chip. 4 、 on the above theoretical basis, the system of the quick - start controller for

    3 .以上述理論為基礎，對250w金屬鹵化物燈快啟控制器的系統進行了理論分析，並對工作電路的主要參數進行了設計。
  9. It consists of forward stage and backward stage, of which the forward stage is a single - phase boost power factor correction circuit using ic uc3854. the backward stage main circuit is a full - bridge converter using phase - shifting control soft - switching technique

    該開關電源分為前級和后級，前級為採用boost結構的單相有源功率因數校正電路，后級為採用移相控制軟開關技術的全橋變換器。
  10. Isolated boost converter has advantages of high frequency electrical isolation, multi - output solutions, lower input ripple current and high reliability for the short circuit of load, etc. it is attractive in applications such as high voltage multiple outputs with isolation requirement, single stage power factor correction and bi - directional dc / dc converters

    電氣隔離型boost變換器具有高頻電氣隔離，易於多路輸出，輸入電流紋波小，負載短路時可靠性高等優點。它適用於有隔離要求的高壓多路輸出、雙向pwm直流變換和單級pfc等場合。
  11. Boost type power factor correction rectifier

    高力率整流迴路
  12. Major : microelectronics and solid - state electronics topic : research of power factor correction technology for electronic ballast spic ( smart power integrated circuits ) master ? degree candidate : liu yi advisor : prof. chen xingbi in this paper, the research and development on spics are reviewed briefly, and also the power factor correction technology is discussed

    本文首先簡要介紹了智能功率集成電路的研究和發展現狀，其次對功率因數校正技術進行了討論，採用cmos電路結構，著重分析有源功率因數校正（ apfc ）技術在電子鎮流器中的應用原理，並對電路部分進行了設計與模擬。
  13. The dq equivalent circuit model of three - phase three - switch boost type power - factor - correction is proposed firstly, the completely dc steady - state analysis and ac small - signal analysis are done and the dc operation points and ac transfer functions are acquired

    3 .首次提出三相三開關boost型功率因數校正的dq等效電路模型，並對其進行了完整的直流穩態和交流小信號分析，得到直流工作點和交流傳遞函數。
  14. In this paper, a charger of storage battery with power factor correction ( pfc ) is devised. additionally, the summarization, implement methods and the charge mode are mainly introduced

    本文設計帶功率因數校正的蓄電池充電電路，主要介紹了功率因數校正的概況、實現方式及恆壓限流充電方式。
  15. In order to solve this problem, the power factor correction ( pfc ) pre - regulators are applied to limit the input current harmonics of the switching power supplies

    為了限制諧波污染，用電設備需加入功率因數校正（ powerfactorcorrection ， pfc ）裝置。
  16. These studies in the thesis have been done as follows : it is proved that if the three - phase single - switch boost type power - factor - correction can work in continuous - current - mode, its power factor can not reach unity. therefore, it is not qualified for high power and high requirement application. according to the ac side equivalent circuit of the three - phase three - switch boost type power - factor - correction, the equations to realize unity power factor have been deduced and realized by integrate - reset - control circuit

    本論文把積分復位控製成功應用於三相功率因數校正技術中，作了以下幾方面的研究： 1 .從理論上證明了三相單開關boost型pfc即使工作在ccm ，其功率因數也不能達到1 ，在大功率和對功率因數校正能力要求較高的場合，三相單開關boost型pfc達不到要求， 2 .根據三相三開關boost型功率因數校正交流側的等效電路，推導出實現單位功率因數所需的控制方程，並用積分復位控制電路進行實現，在理論研究的基礎上進行了模擬研究。
  17. Many international companies have put their pfc chips on the markets, such as mc33262, mc34262, l6561, l6562, ml4812 etc. in this paper, we studied on critical current mode active power factor correction technology, and did a detailed analysis and design on voltage reference circuit and analog multiplier circuit

    國際上已經出現了一些有源功率因數校正晶元，如onsemi公司的mc33262 、 mc34262 ， st公司的l6561 、 l6562 ， microlinear公司的ml4812等產品。本文研究了有源功率因數校正技術中的臨界導通模式的基本原理，並對其中的電壓基準源和模擬乘法器做了詳細的分析和設計。
  18. Another is that dfc is also not suitable for high input voltage application, such as following the output of three phase power factor correction circuit, for the voltage stress of switch in dfc is equal to the input voltage

    另外，在高電壓、大功率應用領域，如三相pfc電路後面接的dc dc變換器，由於三相pfc電路輸出電壓較高，一般為800v左右。此時採用功率mos管作主管的雙管正激變換器則不能直接應用。
  19. The current harmonics it produces deteriorate the quality of the power source, which eventually affect the other equipment. in order to solve this problem and meet the requirement for standards, such as iec 555 - 2, iec 1000 - 10 - 3 - 2, ieee 519, and iec 6100 - 3 - 2, a lot of power - factor - correction circuits, as the best way to improve power quality, have been developed

    所產生的諧波污染了電源的質量，並最終干擾其它電氣設備的正常工作，為了解決這一問題以滿足諸如iec555 - 2 、 iec1000 - 10 - 3 - 2 、 ieee519 、和iec6100 - 3 - 2等標準的要求，許多功率因數校正變換器作為解決這一問題的最佳方法被研製出來了。
  20. Power factor correction ( pfc ) technique based on sepic converter is researched in this paper

    本文對基於sepic變換器的功率因數校正技術進行了研究。
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