neutral-point method 中文意思是什麼

neutral-point method 解釋
中和點法
  • neutral : adj 1 中立的；中立國的。2 不偏不倚，公平的；中庸的；中間的；不倫不類的，不明確的；不鮮艷的，暗淡...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Our study concentrates on the birthday attack, the length extension attack, the differential analysis, the message modification method, the multi - collision attack, the fixed point attack and the neutral bit attak

    重點介紹了其中幾種起關鍵作用的攻擊技術:生日攻擊、長度擴展攻擊、差分分析技術、多沖突攻擊、消息修改技術、固定點攻擊和不相關位攻擊技術。
  2. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  3. Choice of grounding method of neutral point in high voltage distributing net

    高壓配電網中性點接地方式的選擇
  4. This paper uses " virtual neutral point method " to measure the " zero crossing ", then the soft deal " zero crossing " to get the six key position to commutate

    本文採用虛擬中點的方法來識別反電勢過零點，然後對過零點進行處理得到無刷電機換向的六個關鍵位置。
  5. It has been proved by test results that this protective method is suitable not only for neutral point insulated system, but also for neutral point grounded system through arc suppression coil

    實驗結果表明：該保護原理不僅適用於中性點絕緣的供電系統，而且適用於中性點經消弧線圈接地的供電系統，提高了選擇性漏電的動作可靠性，保證了動作值的穩定性。
  6. A method called " k - ratio h - point standard addition method " was proposed for the simultaneous determination of nitrate and nitrite, based on their ultraviolet absorption spectrum in a neutral medium

    摘要研究了在近中性介質中，硝酸根與亞硝酸根的紫外吸收光譜，提出了引用「 k比例h點標準加入法」同時測定了硝酸根、亞硝酸根含量的方法。
  7. In order to solve the nonlinear mapping problem of the color space transformation, this thesis puts forward a new method by improving the bp artificial neutral network arithmetic on the basis of the study on the icc profile format specification and the characteristics of monitor color display, and realizes it in the software of visual c + + 6. 0 ; a screen color calibrator is developed by using the high - precision rgb color sensor ; the black - point and interconnections caused by the rgb color sensor are eliminated by the amended formulation

    本課題在對icc標準的色彩管理系統和顯示器的呈色特性進行研究的基礎上，針對顏色空間轉換的非線性映射的問題，提出了一種改進的bp神經網路的方法，並在vc + + 6 . 0軟體中編程實現了該演算法;利用高精度rgb顏色傳感器tcs230研製了一種屏幕色彩校準器。
  8. The technique of back emf induction in bldc motor is analyzed, the " virtual neutral point " method and the technique of " 3 - step " start are introduced

    主要分析了反電動勢感應方法，並闡述了虛擬中點法和三段式起動技術。
  9. At the end of this paper, i put forward a new back emf sensing method which does n ' t require a virtual neutral point to realize the sensing for rotor flux position. it improves the performance of bldc motor at low speed and at high speed and broaden its range of timing

    最後針對系統的不足，提出了另外一種不需要引出虛擬中點的反電勢檢測方法來實現對轉子位置的檢測，它能夠提高電機低速和高速運行時的性能，拓寬直流無刷電機的調速范圍。
  10. To solve these problems, the compensating method of neutral point grounding through peterson coil is commonly used in our country

    為了解決這一問題，我國現在普遍採用中性點經消弧線圈接地的補償方式。
  11. According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed

    本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統，主要內容如下：針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀，回顧了國內外礦用高壓防爆開關保護系統的發展歷史，分析了目前國內高壓饋電開關保護系統所存在的問題，提出了「基於零序電壓基波啟動，五次諧波功率方向比較」的選擇性漏電保護原理，設計了相應的五次諧波提取電路和功率方向鑒別電路。
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