phase sequence 中文意思是什麼

phase sequence 解釋
位相序列
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • sequence : n 1 繼續；接續；連續。2 順序；程序；次第；關系；關聯。3 後果；結果；接著發生的事；後事；後文。4 ...
  1. 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。
  2. On the basis of former research, drawing software neharpal. 0 is developed to analyze the negative phase sequence and harmonic of electric traction loads. neharpal

    在既有成果的基礎上，開發了一套主要應用於電氣化鐵道牽引負荷負序、諧波滲透分析的電網圖形系統模擬軟體neharpa1 . 0 。
  3. The stator of aceg is connected to the grid and the three symmetrical excitation windings in the rotor are fed by converter. the magnitude and frequency and phase and phase sequence of excitation voltage can be controlled, so the magnitude and position of excitation mmf as well as the speed of rotor can be controlled. therefore, acegs have superior performances by contrast with conventional synchronous generators and induction generators, such as upstanding stability, power generation of variable speed constant frequency ( vscf ), adjusting active power and reactive power independently, and absorbing lag reactive power deeply

    交流勵磁發電機的基本結構與繞線式異步電機相同，其定子側接電網，轉子上採用三相對稱分佈的勵磁繞組，由變頻器提供對稱交流電勵磁，且勵磁電壓的幅值大小、頻率、相位、相序都可根據要求加以控制，從而可以控制發電機勵磁磁場大小、相對于轉子的位置和電機的轉速，使得交流勵磁發電機具有良好的穩定性及轉速適應能力、獨立的有功與無功調節能力和較強的進相運行能力，性能超越傳統同步發電機和感應發電機，因而有著廣闊的應用前景。
  4. The protector makes the over - current value, zero - phase - sequence component, negative - phase - sequence and so on as protection criterions, in protection theory ; it makes atmel 8 - bit microprocessor at89c55wd as the core, with which the lattice lcd is linked, in hardware

    該保護裝置在保護理論上，以檢測過電流幅值、零序電流為判據；在硬體實現上，以atmel單片機at89c55為核心，外接圖形點陣式液晶顯示器、觸摸式按鍵等外設。
  5. Electrical safety in low voltage distribution systems up to 1000 v a. c. and 1500 v d. c. - equipment for testing, measuring or monitoring of protective measures - part 7 : phase sequence

    1000v交流和1500v直流的低壓分配系統的電氣安全.防護測量的試驗測量和監測設備.第7部分:相序
  6. Fuzzy control in multi - phase intersections based on variable phase sequence

    基於可變相序的多相位交叉口信號的模糊控制
  7. Positive phase sequence relay

    正相序繼電器
  8. Phase sequence indicator

    相序指示器
  9. Application of main tansformer differential protection in primany negative - phase sequence system

    主變差動保護在一次負相序系統中的應用
  10. Frequency code is not uniformity distribution and keeps to a probability distribution function defined by the spectral characteristics of the target of interest. the phase code is equally duality pseudo - random sequence and used to reduced the sidelobes of the signal correlation function. and the mismatch - phase sequence is corresponding with the frequency sequence one by one

    而頻率編碼為不均勻分佈，由所觀測目標的頻譜信息提取出概率密度函數決定頻率編碼序列的分佈；相位編碼為二元的偽隨機序列，採取均勻的二相編碼，消減同頻脈沖帶來的過高的相關函數的旁瓣；而失配相位為與頻率編碼相一一對應于各子脈沖中。
  11. When generator runs at conversation states from synchronous speed to super - synchronous speed, the excitation current of oppositional phase sequence should ensure the current waveform smoothly transform

    當發電機運行於同步速向超同步速過渡轉換狀態時，需向轉子饋入反相序的勵磁電流，且保證勵磁電流的波形平滑連續。
  12. Through theoretical analyses, the zero - phase - sequence current is the reason of the metering error

    理論分析這一誤差的產生是由於零序電流的存在。
  13. Electrical safety in low voltage distribution systems up to 1 kv a. c. and 1, 5 kv d. c. equipment for testing, measuring or monitoring of protective measures. part 7 : phase sequence

    最高可達1 kv交流電和1 . 5 kv直流電的低壓配電系統中的電氣安全性.試驗測量或保護測量監測用設備.第7部分:相序
  14. Psl phase sequence logic

    相位順序邏輯
  15. With the strengthening human ’ s impact to the nature ， the earth land surface 1s exderiencing profound change land use land cover change has become one of the most important study areas of global changes urbanization and industrialization are major types of land use change in china today ， which will certainly have a deep effect on the land use structure and food safety in this paper ， multi phases satellite image including corona ， tm ， etm + data which redresent the information of yixing of 1 966 ， 1 984 ， 1 992 and 200 1 ， respectively were dealt with multi - bands composition ， precise rectification ， interpretatlon ma ‘ k establishment ， computer assistant visual interpretation by the methord of multi 。 phase - sequence comparison and integrated technology of rs and gis vetor maps of land use of 1 984 ， 1 992 and 200 1 are attained by interpreting images above. by the data above and the image of corona of 1 966 ， vector maps of expanding towns ot yixing city from 1 966 to 2001 are acquired

    城市化、工業化已經成為當前我國土地利用變化主要表現形式，它必將對我國的土地利用結構和糧食安全產生深遠的影響。本文藉助遙感和gis技術，採用多時期連續對比法對fm ， etm + pan等多源衛星遙感影像進行土地利用人機交互解譯，獲得了高精度的宜興市1984 、 1992 、 2001年三個時期l ： 5萬土地利用圖。利用以上各時期的土地利用數據庫並結合1966年corona衛星影像資料建立了1966 、 1984 、 1992和2001年四個時期的城鎮建設用地數據庫。
  16. ( 3 ) on the basis of study of sedimentary thickness change of each formation, analysis of provenance a nd p aleo - current d irection, s tudy o f d istribution o f s edimentary facies b elt a nd analysis of vertical phase sequence, lithofacies and paleogeography are analyzed and the sedimentary history of five stages of middle - upper jurassic series is renewed in the studied area

    （ 3 ）在中?上侏羅統各組沉積厚度變化研究、物源區分析、古流向分析、沉積相帶展布研究和垂直相序分析基礎上，進行了巖相古地理分析並恢復了研究區中?晚侏羅世五個階段的沉積歷史。
  17. The fault calculation is realized with fault analysis theory of power systems. in the paper, simple fault with operation mode transformation is calculated by modifying node input current. phase - sequence parameter converse technique is used to get general method in calculating complex fault

    本文運用成熟的電力系統故障分析理論，實現了繼電保護整定的故障量計算，它採用補償法進行運行方式變化時的簡單故障計算，以求取整定用運行方式，採用故障口相序變換技術實現通用的復雜故障求解，為整定計算奠定了基礎。
  18. In the electric power system of neutral point effectively, if parameter is not symmetric, the zero - phase - sequence current will appear

    在中性點有效接地系統中，如果參數不對稱就會產生零序電流。
  19. The method digitally modulates the pseudo - random fsk / psk multi - modulation signal and the partly - matched processing signal of this signal with the same frequencies sequence and phases sequence in the same time, additionally, add a mismatch - phase sequence to the partly - matched processing signal

    設計的方法是對偽隨機fsk / psk復合調制信號與非完全匹配處理信號採用相同的頻率的數字調制（ fsk ） ，相同的相位的數字調制（ psk ） ，並對非完全匹配處理信號增加失配相位。
  20. Then, the address code can be designed by different phase sequence of an m sequence. our studied method can attain better communication quality than before case. of course, synchronization among all users is requested, i. e., our method is a s - cdma communication

    這種地址碼的安排，要求用戶間嚴格同步，使得原本為一個m序列的自相關函數，在各個用戶相位差恆定的條件下，分割成用戶間的自相關和互相關函數。
分享友人
分享到 Line

分享到臉書