潮流系數 的英文怎麼說

中文拼音 [cháoliúxìshǔ]
潮流系數 英文
current factor
  • 潮 : Ⅰ名詞1 （潮汐; 潮水） tide 2 （比喻大規模的社會變動或運動發展的起伏形勢） （social） upsurge; cur...
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 潮流 : 1 （潮汐引起的水流運動） tide; tidal current; tidal wave; tideway: （船）逆潮流而上 stem the tide...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. The paper presents a distribution analysis software platform which is developed combining computer graphical theory and oop ( object - oriented programming ). the platform includes three modules, the graphics module, the database module and the computation module. the graphical module can draw the key diagram of power system ; the database module can save, browse and edit the data of power systems ; the computation module can compute the power flow

    本文運用面向對象的程序設計方法結合計算機圖形學的知識，開發了一套可視化配電網分析軟體平臺，它包括用於繪制電力系統結線圖的圖形模塊、用於保存、瀏覽、修改電網數據信息的數據庫模塊和進行配電網潮流計算的計算模塊。
  2. This paper presents a new interior point nonlinear programming algorithm for optimal power flow problems ( opf ) based on the perturbed kkt conditions of the primal problem with a novel data structure

    基於原問題的擾動kkt條件，本文提出了一種帶新數據結構的原始對偶內點演算法求解電力系統最優潮流問題。
  3. The elements of the reduced - jacobian matrix are functions of some parameters of the system. for example, effective short ratio, power base ratio, coupling impedance and load flow of the system. for single - infeed hvdc system with a parallel ac line, computer simulations using power system analysis software package ( psasp ) were performed

    用一種簡單的方法可以求得降階雅可比矩陣，由於降階雅可比矩陣的元素都是交直流混合系統中一些參數的代數函數，如有效短路比、功率基準比、連接阻抗和系統潮流等，因此，矩陣的特徵值也與這些參數相關。
  4. The updated model with complete forcing has excellent ability of simulation and forecast. to study yellow and east china circulation in winter and summer, based on long - term ocean observation data of january and august, the fine structure of yellow and east china seas circulation is diagnostically calculated with complete forcing ( including surface wind stress, boundary transportation, baroclinic effect, tide, changjiang river runoff ) in winter. the influences of factors on main circulation patterns are discussed respectively

    對于冬季和夏季海洋環流的情況，在多年觀測的溫鹽資料基礎上，分別以1月份和8月份代表黃東海冬季和夏季的情況，以月平均大氣風應力、邊界流輸送、溫鹽斜壓效應、潮汐、長江口徑流等作為強迫條件，對黃東海環流的細微結構作了高分辨的三維數值模擬，探討了各因子對冬、夏季主要流系的動力學作用。
  5. In order to calculate the harmonic power flow, the parameter model of the elements and loads in power system must be achieved

    進行諧波潮流計算必須得出電力系統元件及負荷等的諧波參數模型。
  6. In the tidal estuary, the current is complex, and the flow is oscillatory. some experiential formulation has presented to calculate the vertical turbulent mixing coefficient. on the base of analysis of the hydrodynamic in the estuary, the theoretical equation, which describes the distribution of the space and time of vertical turbulent exchange coefficient, has developed, the equation has applied to the practice

    潮汐河口水流呈往復振蕩運動，本文在分析潮汐河口水動力特性基礎上，考慮了慣性力及重力等項的影響，通過理論推導得到潮汐河口垂向紊動交換系數的空間分佈及時間分佈的計算公式，以及垂向平均紊動交換系數的時間分佈的計算公式，並將其應用於潮汐河口的實際計算中。
  7. By means of vector analysis, dymazttic model of sssc is deduced in dq orthogonal co - ordinate within synchronously rotating reference frame, and dynamic characteristics is invcstigatcd

    採用矢量分析方法，推導了基於同步旋轉坐標系的sssc的動態數學模型，並在此基礎上研究了sssc控制潮流的動態特性。
  8. Fire protection, and surveillabce works as follows : electrical : 22. 8kv ; 27, 800kva ; three loading centers located in the power house, factory, and office building ; generator 2 800kw

    電氣： 22 . 8kv供電設備容量三處負載及配電中心分佈於動力室與廠房發電機容量2800kw ，供緊急負載使用本配電系統處使用數字式電驛及電表，符臺現代化之電力監控新潮流。
  9. To analyze the hydrodynamic structure of the estuary, 3d k - numerical model with curvilinear fitted coordinate has developed. the distribution of velocity and turbulent exchange coefficient at different time has obtained and analyzed

    紊流模型對測驗河段進行計算，得到特徵時刻該潮汐河口段的水力要素及垂向紊動混合系數的分佈。
  10. Based on the materials observed many years at the tidal observatories and the ocean current data measured in the coastal zone and islands in zhejiang province, the characteristics of tides, tidal currents and residual currents are analyzed and processed by harmonic analysis and statistical methods systematically. such research results are compared with those from the numerical simulation to validate the effectiveness of the latter

    本文以多年來沿岸各潮位站觀測資料以及海岸帶和海島調查的實測海流資料為依據，用調和分析和統計的方法對浙江近海的實測潮汐、潮流和余流特徵進行了系統全面的整理和研究，這些實測數據將作為檢驗數值模擬是否成功的依據。
  11. Based on the numerical results, characteristics of the tidal system are analyzed in this paper, such as tidal types, tidal elevation, tidal current, vertical structure of tidal current and tidal residuals

    根據數值模擬結果，本文分析了渤、黃、東海的潮型分佈、潮位系統分佈、潮流場的分佈、潮流的垂向結構、潮余流等的分佈。
  12. Then by using of statistics and numerical simulation analysis, research abnormality of the main circulation system at following summer in east asia, and the influence of the abnormality on the rainfall and temperature in summer in china, when sst over the kuroshio area during winter show cold or warm anomaly

    再分別通過統計和數值模擬的方法，系統的分析了冬季黑潮海溫冷暖異常時，後期夏季東亞地區高低空的主要環流系統的異常，以及這些異常又如何進一步影響了我國夏季的降水和氣溫。
  13. Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method

    本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。
  14. The unified power flow controller ( upfc ) is one of the most enterprising realizations of the idea of flexible ac transmission system ( facts ). having the ability of controlling most of the basic power system parameters, upfc can flexibly adjust the real and reactive power through the transmission line, damp the oscillation, and enhance the stability of power system and so on

    統一潮流控制器（ upfc ）是靈活交流輸電系統中最有代表性的成員，具備控制多種電力系統參數的能力，因而可以靈活地調節線路有功和無功功率、阻尼系統振蕩、增強電力系統的穩定性和提高輸電線路的傳輸極限。
  15. With regard to centralized flow regulation, regulating by changing the power has been people ' s common sense and technical current, it mainly includes change the speed of pump and fan, changing their running number and the combine of the two

    對于系統流量的集中調節，採用改變動力的方式已成為人們的共識和技術潮流。改變動力的調節主要有改變泵/風機的轉速、改變泵/風機聯合運行的臺數以及二者的結合。
  16. ( 2 ) secondly, the 2d and 3d flow differential models of yre are applied. it is also studied that how to bring facilities of spatial analyses and capabilities of database managements of gis into play

    （ 2 ）應用長江口有限差分二、三維潮流數學模型的計算成果，結合長江口深水航道治理工程，研究工程地理信息系統的應用，探索怎樣給專業數學模型以gis空間分析工具和數據庫管理功能的支持。
  17. The steady and dynamic mathematic models of upfc are investigated, and the basic control performances and the control system structure are also discussed in this paper. then the upfc power flow control characteristics and the fundamental principles of upfc control arc put forward

    論文首先分析了upfc的動靜態數學模型，介紹了upfc的基本控制特性和控制系統結構，並提出了upfc的潮流調節特性及控制的基本原則和分級控制策略。
  18. Then, this paper empirically tested the validation and predictive accuracy of different var risk management model in the domestic financial market. finally, with the analysis of modem financial risk management development trend and the current domestic financial risk management situation, this paper made a prospect for the application of this model in the construction of domestic financial risk management system. through the analysis, the main conclusions are as follows : ( l ) the traditional mean - variance model is the special example of the portfolio selection based on the var risk management model for the case that the returns of the portfolio are assumed to be normally distributed ; compared with the mean - variance model, the var risk management model is more comprehensive and accurate in the measurement of the portfolio risk, so based on the var model, the investors can allocate the asset more effectively. ( 2 ) the var risk management model can provide the timely and comprehensive risk information for the top risk manager, so it is very helpful to the improvement of total risk management efficiency. ( 3 ) based on the var model, the raroc performance valuation approach can reflect the real performance of the portfolio manager and provide the coherent standard for the allocation of risk limitation and the construction of the incentive compatibility constraint mechanism in the financial instiutions

    通過研究分析，本文主要得出如下結論： （ 1 ）傳統的markowitz均值? ?方差模型僅僅是在資產組合收益率正態分佈假設條件下基於var風險管理模型進行資產組合選擇的特例，與均值? ?方差模型中的方差風險度量方法相比， var風險管理模型能夠更全面、更貼切地衡量資產組合的風險，且基於此模型能夠更有效地進行資產配置決策； （ 2 ） var風險管理模型能夠滿足更高層次風險管理者對風險信息的需求，有助於整體風險管理效率的提高； （ 3 ）基於var風險管理模型的raroc績效評價能夠反映資產組合管理人的真實業績，從而為金融機構風險限額的分配和激勵約束機制的制定提供統一的標準； （ 4 ）國內證券市場資產組合收益率服從正態分佈的假設明顯不成立，實證檢驗表明基於資產組合收益率正態分佈假設條件下的方差? ?協方差模型對國內資產組合風險的預測存在較大的偏差，由於文中證明在收益率正態分佈假設條件下基於方差? ?協方差模型進行資產組合選擇的結果等價于markowitz的均值? ?方差模型，因此，均值? ?方差模型對國內資產組合風險的預測同樣會存在著較大的偏差，而半參數var風險管理模型則能夠取得較好的預測衡量效果； （ 5 ） var風險管理模型符合未來金融風險管理的發展趨勢，基於var風險管理模型建立內容提要風險限額內控體系、風險信息披露體系和業績評價體系，並進行金融監管，將有助於國內金融機構內部風險管理方法和外部監管技術跟上國際金融風險管理的發展潮流。
  19. Having set up the models of the system, we discussed further some primary problems of the real - time technology, such as the data processing, the calculation of the flow, the calculation of the loss and the effective measures that can decrease the loss etc. the data processing realized the dynamic subsection interpolation to the original data. through this measure, the data would be more precise and reliable. the calculation of the flow and the loss solved the problems about the real - time calculation of the flow and the loss, showing the characteristics and advantages of the real - time system

    其中數據處理演算法實現了對取得的原始數據進行動態分段插值，使得處理后的數據有效的貼近介面數據的原始幾何，較好的反映了系統的運行狀態；潮流計算和損耗計算解決了利用運行數據和系統參數在線計算系統潮流和損耗的問題，反映出實時系統的特點和優勢;降損分析主要探討了較通用的一些技術降損措施，並定量的分析了它們的降損效果和同時採用幾種措施的綜合降損效果。
  20. Then computation modules for line loss and flow are built up with considering building out capacitor, with the net communicate system based on the technology of field bus

    基於以現場總線為紐帶互連成的現場網路數據通信系統，建立補償電容后的潮流計算模型及線損計算數學模型。
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