正序電流 的英文怎麼說

中文拼音 [zhēngxùdiànliú]
正序電流 英文
forward-order current
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 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...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. A lot of experiments have been done in the process of exploiture soft packaging li - ion battery about how to choice the rational arts and crafts. the content include : how to deal with the collector, add how much pvdf in the material, how long the material need to stirring and the right viscidity, how much condubtivity agent the electrode need, what theckness is best, choice different collectors, the degree of dryness of the electrode, theckness of pressed model, how much electrolyte will be added, placement how long after added the electrolyte, system of formation how to influnce the battery, in formation the battery need or not need preesure from outside, how to vacuumize and the optimize matching positive pole and negative pole. with these practice make sure the parameter of the positive pole should less than 90 m ; according to different vacuumize order the conduc - tivity agent in anode will be 5mass % and 9mass %, respectively, and in cathode the data is 2mass % ; every 100mah added to 0. 4 ml electrolyte ; before formation the battery should be placement 8 hours and the system of formation must be less than 0. 01c before the voltage reach to 3. 0v ; should press in outside when battery in formation ; to these batteries which capacity more than 350mah the vacuum time not excess 15s ; the optimize matching positive pole and negative pole between 2. 10 : 1 and 2. 15 : 1. finally make out the battery which cycling performance and security are all very well

    液態軟包裝鋰離子電池的研究主要是對關鍵工藝進行了優化設計，具體包括:集流體的處理、 pvdf的加入量、漿料攪拌時間和粘度、導電劑的加入量、電極膜的厚度、不同集流體的選擇、電極膜的乾燥程度、壓型的厚度、電解液的加入量、注入電解液后靜置時間的長短、化成制度的影響、化成時電池所具有的壓力影響、抽真空的處理、正負極活性物質的匹配。最後確定出液態軟包裝鋰離子電池最佳工藝參數:正極膜的厚度小於90 m ;根據化成時不同抽真空順序，確定正極膜中的導電劑的加入量分別為5mass %和9mass % ;負極膜中導電劑的加入量為2mass % ;電解液的加入量為每100mah添加0 . 4ml ;化成前電池的靜置時間應當大於8h ;電池在3 . 0v之前採用小於0 . 01c的化成制度;在化成過程中應當施加一定的外部壓力;對於350mah的電池抽真空的延時不應大於15s ;而正負極活性物質的質量比應當在2 . 1 : 1 2 . 15 : 1之間。
  2. Yueqing zhengda soft magnetic alloy co., ltd is a high - tech company that mainly produces ultra - crystallite ( nanometer cryst - allite ) material, ultra - crystallite magnetic core, current transformer, zero sequence current transformer, toroidal transformer

    樂清市正大軟磁合金有限公司，是一家專業生產超微晶（納米晶）帶材，超微晶磁芯，電流互感器，零序互感器，環型電感的高科技、軟磁公司。
  3. Although many achievements have been acquired in oled structure material, production technology, drive methods, oled technology is just at the beginning, oled has given an equal chance for every company and country, and it is very important for our country to develop displaying technology of our own. the research direction of oled is managing to improve the device lifetime, at the same time found a perfect production technological flow and the global standard production mode. it is still a arduous mission that we want to live up to a batch production of oled displays in the future some years. active matrix organic light emitting diode ( am - oled ) adopts a circuit structure based on matrix addressing, and its driving circuit includes pixel driving circuit and peripheral driving circuit

    在文中，首先，分析和研究了有源oled的像素驅動電路，闡述了amoled顯示屏及其周邊驅動電路的結構和原理;其次，提出了qvga解析度的有源oled顯示屏列電極數據引線的分塊（ block ）方法，確定屏上驅動電路所需要的控制信號之間時序關系和幅值要求;最後，以fpga控制器的設計為核心，對外圍控制ic進行了具體設計，建立控制器電路模塊模型和演算法流程，通過quartus軟體對其內部的各個電路模塊進行綜合設計和模擬，得到了正確的模擬波形，完成了解析度為qvga （ 320 3 240 ）的amoled專用驅動電路的設計。
  4. The ideal power system needs to be supplied with sine voltage whose frequency and amplitude are both stable. to three - phase ac power system, the currents and voltages must be equal of amplitude and the phase - shift between each other should be 120 of positive order

    理想的電力系統要求以頻率和幅值穩定的正弦電壓進行供電；對於三相交流電力系統，各相電壓和電流應處于幅值大小相等、相位互差120的正序對稱狀態。
  5. We present a calculation program in this paper, based on the physical optical theory ( po ) theary to predict bse and bses for a conical type of radome. the po theory is used to determine the ficticius currents electrical and magnetic on the inner face of the radome, which is illuminated directly by the radar antenna, and then use the transmission matrix mothod to determine the outer surface ficticion currents, the radiated from the antenna through radome is considered as the radiation field of these ficticion current

    本文提出了一種基於物理光學理論預測正圓錐天線罩瞄準誤差及瞄準誤差斜率的計算程序。首先，雷達天線照射到天線罩內壁，應用物理光學法求出內壁等效的電流和磁流，其次，根據傳輸矩陣理論求出外壁等效電流和磁流，天線通過天線罩的遠區場即可認為是外壁等效電、磁流產生的場。
  6. This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop

    電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。
  7. This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power

    該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場，可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數，並具有負載性質（感性、容性）判別，正、逆相序判別指示功能；超限報警功能；列印記錄功能和負功檢測及處理功能。
  8. Now the affect and the measure of hypo _ harmonics is in the research. the influence of negative sequence is almost eliminated along with the enlargement of the system ' s capacity and the alternate connection of traction substations. the fixed parallel compensate equipment applied in traction substations consist of a constant capacitor and a constant inductance, so its output is constant

    負序電流的問題已經因系統容量的增大、牽引變電所採用輪換接線方式而基本解決，電力部門實行的「反轉正計」 ，使採用對無功功率固定補償方式由於牽引負荷變化頻繁而出現補償容量不足或過補償現象，難以達到滿意效果。
  9. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  10. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括：工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路（恆流源電路、時基信號處理電路、被測信號處理電路）設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括：主程序流程圖、系統開機自檢程序流程圖、手動靜態測試程序流程圖、半自動靜態測試程序流程圖、自動靜態測試程序流程圖、動態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號，並對三種不同測試狀態（靜態、動態、暫態）下大量程脈沖變換電路輸出脈沖信號的頻率進行精確測量。
  11. In order to consider the different heating of positive - sequence current and negative - sequence current of the motor stator generally, the equivalent current is adopted instead of the traditional phase current. the way how to gather positive - sequence current and negative - sequence current is brought forward, and the recurrence fourier - algorithm is adopted to calculate the effective value of current and voltage, the effective value of positive - sequence current and negative - sequence current

    為了全面考慮感應電動機定子正序電流和負序電流的不同發熱效應，提出了正序電流和負序電流獲取的方法，並採用遞推傅氏演算法來實現電流、電壓及電流正序和負序分量的有效值的計算。
  12. So the vsr can operate in any power factor. internal model control ( imc ) design concept has been introduced to the unbalanced control system of vsr. with imc design concept, the unbalanced control system not only achieve zero steady state error of sinusoidal ac current, but also obtains strong robustness of the control system

    由於在abc和靜止坐標系中，採用比例和比例積分調節器無法實現對時變正弦波信號的無差跟蹤控制，而在dq坐標系中需要用正、反兩套旋轉坐標系構成四個電流內環才能實現對正、負序dq電流的無差跟蹤。
  13. The main module of sensorless pmsm vector control such as voltage sensing, current sensing, smo rotor position estimation, speed calculation, generation of sine and cosine, vector coordinate transformation, pi regulators, svpwm vector modulation are all accomplished in the pwm interrupt service routines

    永磁同步電機無位置傳感器矢量控制的主要模塊如電壓采樣、電流采樣、滑模轉子位置估算、速度計算、正餘弦值生成、矢量坐標變換、比例積分調節器、空間電壓矢量脈寬調制等都是在pwm中斷服務子程序中完成。
  14. 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。
  15. In the second one, the input current displacement angle is dynamically modulated as a function of positive and negative sequence components of the input voltages. in both cases, the harmonic content has been evaluated analytically

    第二種方法中，輸入電流矢量根據輸入電壓正、負序成分進行動態調制，並對兩種情況下的輸入電流的諧波成分都進行了分析。
  16. Faced with the fact that there is a great deal of noise in detecting signal when using small amplitude lasting sine current on field, a developed lease minimum squares method is adopted, which makes the parameters of sine sequence with known frequency picked up on the real time. at the same time, original signal is processed by using wavelet theory, gaining true information which responses to the coating quality

    在小幅度正弦恆電流激勵檢測中，針對現場檢測信號含有大量噪聲這樣的情況，採用改進的最小二乘法，實現頻率已知的正弦序列參數的實時提取；同時利用小波理論對原始信號進行處理，得到反映塗層性能的真實信息。
  17. 4. analysing the data of test result acquiring by the ecu monitoring software, the fuel injection base map and related correction curves are roughly delivered, the fuel injection control strategy for this type of engine is developed, and the flow chart of ecu control program for fuel injection control is also designed

    4 、分析監測軟體所採集的數據，分析電控燃油噴射系統工作參數之間的關系，得出比較粗略的基本噴油map圖和各種相關修正曲線，最後制定了適用於該小型二沖程汽油機的噴油控制策略，並給出了ecu噴油控製程序的流程圖。
  18. The system uses a new replaceable chip and has realized the chip separated from the flow injection pool. and according to the new chip, the system is designed to employ a new flow injection pool which has a compact structure. in addition, the new system strengthens the function of the control software and puts automatic data - treating into practice

    改進后的系統採用激勵光源正面照射的方式，增強了光電流的響應；同時系統採用新型的可替換式laps晶元設計，實現了多個laps晶元共用一個流通測量池；系統還針對新的晶元設計了流通測量池，該測量池結構緊湊合理，真正實現流通檢測；另外系統還增強了主機控製程序的功能，實現了實驗數據自動化處理，並優化了系統參數設置。
  19. So by analyzing the stability of voltage vector and the changeability of current vector, we proposed to construct sinusoidal sequences with the same and delaying ninety - degree phase angles to voltage vector, then to multiply with the current vector respectively to bring about active and reactive power

    本文分析了單相系統電壓矢量的穩定性以及電流矢量的多變性特點，提出了對電壓矢量採用構造與之同相位和滯后90相位正弦序列的辦法，並分別與電流矢量相乘從而導出其有功和無功功率。
  20. By study, we can know that when one - phase ground fault happens on the line, more far the fault location is from where relays place, more less is the difference of the two zero sequence currents, while hen one - phase ground fault happens on the other line, more far the fault location is from where relays place, more is the difference of the two zero sequence currents

    研究表明，當本回線路發生單相接地短路時，在通過公式計算得出的一特定值為正時，離保護安裝處越遠，本回線路零序電流與非故障線路零序電流相位差值越小；當另一回線發生單相接地短路時，離保護安裝處越遠，本回線路零序電流與故障線路零序電流相位差值越大，該值為負時則反之。
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