power system diagram 中文意思是什麼
power system diagram
解釋
電力系統圖-
In order to apply esd to practical engineering, the author develops computer - aided events sequence diagram system ( caesds ). taking the power failure of spaceship cooling circuit drove pump as an example, this thesis uses the improved esd method and the esd model constructed by caesds, drawing a conclusion that the improved method and caesds is valid in manned spaceflight risk assessment
並以飛船冷卻迴路驅動泵電源故障為例，綜合運用改進的esd方法，利用caesds對其建立esd模型，最後分析得到結論，說明了改進的方法和caesds在載人航天安全性風險評估中的有效性。 -
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。 -
Optical power meter real - time monitor optical power of each optical cable, and control computer gather the value of optical power attenuation circularly, if some values excess the limit, the computer control optical switch to connect another spare optical fiber with otdr card, control the otdr card to test the optical fiber, and then find the malfunction point accurately. the system require software system to run with hardware devices tother. this paper analyze requirement and technical feasibility in software system, ooa and uml are used to analyze software and abstract the class diagram
通過光功率計對每條光纜中的備用光纖進行實時的監控，測試光功率的衰減值，主控計算機不斷循環的對每個光功率模塊進行數據採集，並記錄每路光信號的光功率衰減值，然後進行分析處理，如發現達到設定的光功率衰減門限值就報警，並控制光開關的切換，將故障光纜中的另一備用光纖與otdr卡連接，通過otdr卡對該光纖進行測試，從而確定故障點。 -
The flow diagram of a lpg bottle paint - drying heating system using heat carrier as heat - medium, which has similar properties as other heat - carrier heating systems, has been improved, which has good effect in avoiding oil - spraying, shortening dehydration time and power - fail protecting etc. after making a series of analysis, calculational methods of expansion tank dimension have been deduced, which takes the moisture boiling - off of heat carrier into account and accords with real conditions
對與其它熱載體加熱系統具有共性的鋼瓶熱載體加熱系統的流程圖進行了改進和完善，在防止噴油、縮短脫水時間和停電保護等方面取得了良好效果。通過分析，整理出了熱載體加熱系統膨脹器容積的計算方法，該方法考慮了熱載體所含水分汽化而帶來的影響，比原有的計算方法更加符合實際。 -
The development of a visual short circuit software under ptcad2000 is presented in this paper, as well as the system structure, the definition of the data structure, the interface to ptcad2000, the conversion of the original wiring diagram of power network to calculable power network, the implement of three sequence network, the implement of impendence matrix and admittance matrix of power network considering the zero sequence mutual inductances among lines, and the implement of short circuit calculation by using computer
本文介紹了在ptcad2000平臺下短路電流可視化計算軟體的開發。介紹了軟體的系統結構、數據結構定義、與ptcad2000平臺的介面、電力系統原始接線圖轉成等值可計算網路、序網的生成、考慮零序互感線路阻抗時電網導納矩陣和阻抗矩陣的生成，以及故障點短路電流計算的計算機實現。 -
It has designed the simulation disk intelligence dynamic management system, the main cording diagram dynamic management system, the power dispatch load report management system, the power dispatch information order bill management system, the network information issue system and the network java curve data browsing system
設計了模擬盤智能動態管理系統、主結線圖動態管理系統、電力調度負荷收報管理系統、電力調度信息令票管理系統、網路信息發布系統、網路java曲線數據瀏覽系統。 -
This disquisition aimed at plc reactive dispatch curve controller, associating the entire exploiting process, expounded in guiding ideology, control standard, function and structure design, software system design, analog experiment, fixing and debugging and so on, also part of flow schematic diagram ( the ladder chart was n ' t drawn because of too many network and length limit ). this design involves many subject such as power systenu automatic control microcomputer control and electroa during the design, we have read a great deal of concerned data, base on the sufficient investigation analysis and research, associating the practicality of huanren power plant, we introduced and exploited plc reactive dispatch curve controller in the first time
本文針對plc無功調度曲線控制器，結合整個研製過程，在設計指導思想、控制準則、性能設計、裝置構成設計、軟體系統設計等方面進行了闡述，並給出了部分程序流程簡圖（由於梯形圖網路數太多，受篇幅限制沒有給出） 。本設計涉及到電力系統、自動控制、微機控制、電子等多學科知識，在設計過程中，我們查閱了大量相關的資料，在充分調查、分析、研究的基礎上，結合桓仁發電廠實際情況，首次提出並研製出了plc無功調度曲線控制器。 -
Data inputting and graphinputting module respectively achieve data inputting of first system and electric firstwiring diagram inputting ; secondary scheme design module realizes scheme design ofsecondary loops including control, protection, signal, measure, automotive equipment, operation electrical source and electrical source for substation and power distributionstation, using rule - cased reasoning of expert system ; protective relaying settingcalculation module realizes setting calculation for first equipments which aretransformers, circuitries, capacitors, and electromotors ; secondary equipmentselection module realizes type selection of secondary microcomputer integratedequipments ; graph making out module realizes secondary drawings making outautomatically representing design production using case - cased reasoning of expertsystem and the drawings can be edited and modified under the secondary developedautocad environment
數據輸入和圖形輸入模塊分別完成一次系統資料錄入和電氣主接線圖的輸入;二次方案設計模塊利用專家系統基於規則的推理實現變配電所各二次迴路的方案設計，包括控制、保護、信號、測量、自動裝置、操作電源和所用電源;繼電保護整定計算模塊實現主設備的整定計算，包括變壓器、線路、電容器和電動機;二次設備選型模塊實現二次微機成套裝置的型號選擇;圖形生成模塊利用專家系統基於實例的推理實現代表設計成果的各類二次圖紙的自動生成，生成的圖紙可以在二次開發的autocad環境下進行編輯和修改。 -
Abstract : this paper discussed two mathematical models for the problem of selecting an expansion plan over a planning horizon for an electric utility system. one of which is the model of optimal sequencing of power plants which is solved using lagrangian relaxation. another is the model of operation. the paper explicated concrete application of the lagrangian relaxation method in calculating block diagram for sloving the scheduling model and considered variable operating expense when calculating
文摘:運用系統工程方法，建立了火電站興建次序優化模型及火電站運行方式模型，採用拉格朗日鬆弛法研究火電站興建次序的優化，並給出了火電站興建次序優化模型的拉朗日鬆弛法計算.在優化計算過程中考慮了可變運行費用問題 -
Based on the activex technology, electric component menus and toolbars are created in this paper, with which a net wiring diagram for power electronics system is drawn. take advantage of autocad events, it is easy to fully carry out the consistency between graphics and data, from which users can manage databases and visual operation on graphics. the graphics about short - circuit current distribution and protection coupling are auto - drawn by using the autocad entity and text objects
本文採用activex技術，創建電氣元件菜單和工具欄，方便用戶繪制電力系統網路接線圖；利用autocad事件，實現圖形數據的一體化，從而可以使用戶在圖形上操作和管理數據庫以及計算的可視化操作；利用autocad的圖形和文本對象來自動繪制短路電流分布圖和保護整定圖。 -
According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。 -
With the pressure measurement system for the swirl chamber diesel engine, by using the methods of equivalent power and the seven point three degree average for the indicator diagram, we can correct the tdc, smooth the pressure curve and make more accurate pressure data that is a well basis for the calculation of combustion heat release rate
摘要本文在自行開發的渦流室柴油機壓力數據測錄系統的基礎上，利用等效功法和七點三次加權移動平均法，分別對示功圖進行了上止點校正和壓力曲線光順，使壓力數據更精確，為燃燒放熱率的計算打下了良好的基礎。 -
Both complicated and simple model of transient stability analysis are integrated in the software, applying the model of each component to different degree of precision respectively. joined with the power system diagram editor, the transient stability analysis can be carried out in a graphical way. some auxiliary models are introduced, such as the classes of fault information and swing curves, etc. these models turn out to be essential to make the procedure of transient stability simulation vivid and intuitionistic, with the swing curves of different variables during the transient period being showed and printed conveniently
針對電力系統各元件模型的不同精確程度，採用成熟的數值解法實現了復雜模型的暫態穩定計算和簡化模型的暫態穩定計算，並與已有的面向對象的電力系統圖編輯器進行了很好的連接，實現了暫態穩定分析的圖形化；實現了故障信息類、變化曲線類等輔助對象，使得整個暫態穩定模擬計算的過程形象直觀，且能對暫態過程中各量的變化曲線進行方便地顯示和列印輸出。 -
And the use - case diagram, state diagram and class diagram are used in uml diagram, which describe the software model from its function, logic and static structure. and the main arithmetic is shown. during the detail design process the com component technology is applied to envelop the logical part, hence to update and improve the software ; the software system of evaluation of the virtual prototype of the high power tf co2 laser is developed
本文採用面向對象的軟體工程方法對高功率橫流co _ 2激光器虛擬樣機評價軟體的需求進行了分析，並用uml中的用例圖、狀態圖和類圖分別從功能、邏輯和靜態結構三個方面對軟體模型進行了描述，提出了主要演算法，在詳細設計過程中應用com組件技術對其中邏輯部分進行封裝，以便於升級和改進，開發了高功率橫流co _ 2激光器的虛擬樣機評價的軟體系統。 -
The paper describes a cw, non - cooling, digital all - solid - stated ld pumped nd : yvo4 driver which adopts microprocessor control, stability power of laser feedback and laser output power about 10mw. the system is composed of constant current source, soft diagram, protection, pulse schematic and laser power feedback loop. by combining appropriate hardware and software, we achieved, in our driver, a variety of protection features including the ability to suppress transients and reduce noise, relay soft and hardware over - current protection and overvoltage shut - off, we have obtained a continuously adjustable laser power output with high accuracy and stability
介紹一種採用單片機控制的連續運轉無製冷、數字式光反饋穩功率全固態激光器驅動電源，其輸出激光功率在10mw左右，系統包括恆流源、保護電路、脈沖驅動控制、光反饋穩功率控制等部分，結合硬體及軟體實現了激光二極體的可靠保護以及光功率穩定、準確輸出及在穩光輸出情況下，實現激光器的內外調制，並取得了一些有價值的研究成果。 -
In the end, the control system and its hardware diagram for steam - gas temperature of boiler in the power plant is designed
最後論文討論了電廠鍋爐過熱汽溫的模糊控制系統，並設計了其硬體電路實現圖。
分享友人