variable power system 中文意思是什麼
variable power system
解釋
變焦度系統-
Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。 -
By use of electronic inverter, variable speed constant frequency ( vscf ) electrical generating system converts variable frequency ac power from generator to constant frequency ac power
變速恆頻電源系統是通過電子變換器將發電機輸出的變頻交流電轉換成為飛機用電設備所需的恆頻交流電。 -
Finally, the prototype of closed - loop control system of mc has been designed. a seris of experiments have been made, and the results show that the closed - loop control of mc presented here is correct. also, the mc closed - loop systems based on the method can be applied to the variable frequency power supplies
最後，製作了輸出電壓有效值控制矩陣變換器閉環系統的原理樣機，進行了一系列實驗測試，結果表明採用雙空間矢量策略矩陣變換器實現輸出電壓有效值閉環控制是正確有效的，輸出電壓有效值控制矩陣變換器閉環系統作為變頻電源設計也是切實可行的。 -
A new vehicle power split continuously variable transmission system ( pscvt ) is presented in this paper. the system consists of a variable pulley set, a planetary train, two electromagnetic clutches, a electromagnetic brake etc. electromagnetic clutches and brake are controlled by ecu
針對微型汽車，本文提出了一套功率分流式汽車無級變速系統，系統由一組可變帶輪半徑的帶式無級變速裝置和一組行星輪系、離合器及電子控制單元等組成。 -
According to the effect of variable - pitch system, we can divide the operation process into three states : starting, below rated power and rated power
變槳距風力發電機組根據變槳距系統所起的作用可分為三種運行狀態，即風力發電機組的起動狀態、欠功率狀態和額定功率狀態。 -
In the electrical control the action of power electronic switch changes the structure of electrical circuit, the electrical circuit has character of discontinuity. the control electrical circuit formed by power electronic switch is described as variable structure control system
在電力系統控制中，由於電力電子開關的動作改變電路拓撲，系統具有不連續性，使得各類電力電子開關組成的控制電路可以被描述為變結構控制系統。 -
The results of the experiment show this creative ac variable frequency speed - governing experiment system can realize the load relationship of direct electromagnetic torque between the motor group, get the continuous control process easily for the reaction load and potential energy load during four quadrant, achieve the total availability of the regenerate energy at any kind of load, and the system consumed power make up under 30 % of actual load power at any kind of load
該方案研究獲得的實驗結果表明：這種具有創新特色的交流變頻調速實驗系統可實現電動機組之間直接電磁轉矩方式的負載關系，可方便地獲得電動機在反應或位能負載特性下四象限運行的連續控制過程，並實現了任意負載方式下再生能量的全部回饋利用，任意負載下系統消耗功率僅占電動機實際負載功率的30 %以下。 -
For a class of shunt - wound active power line conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. the control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. the algorithm is simple and easily implemented
針對一類並聯型有源電網調節器在分析系統數學模型和控制目標的基礎浙江大學博士學位論文上，提出了模糊滑模控制策略，避免了傳統控制方法中復雜的諧波電流計算，實現對電源電流的閉環控制，該演算法簡單、易於實現，模擬結果證實了變結構滑模控制的有效性。 -
With the development of science and technology more attentions have been concentrated on the performance analysis of the following systems : variable speed drive system of ac machines with power electronics and control devices, power energy system composed of ac machines and power lines, electric machine system consisting of ac machines and excitation control devices
隨著科學技術的發展，交流電機與電力電子及其控制裝置組成的調速傳動系統、交流電機與電力傳輸線組成的電能系統、交流電機與勵磁控制裝置組成的電機系統等的性能分析越來越受到關注。 -
In this article a new type wind generator - ac exited wind generator is introduced which new technology scheme by the variable - speed constant - frequency methods at the present time. the thesis mostly studies the way of some control methods and analysis the characters of vscf wind power system
本文全面介紹了一種最新應用於風力發電的變速恆頻技術、基於變速恆頻技術的新型電機?交流勵磁發電機及交流勵磁風力發電機系統的各種控制原理。 -
Prototype of the symmetrical typical voltage space - vector of open - loop variable frequency speed system is designed by using the tms320f240 digital controller and the ipm ( intelligent power model ), with which had a exam on the motor and the experimental results are also given. from the results we can conclude that the results are according with the theory analysis
利用ipm智能功率模塊，設計了採用基於tms320f240數字控制器的對稱空間電壓矢量的開環變頻調速系統的原理樣機，對電機進行了空載實驗，給出了它們的實驗結果，實驗結果和理論分析相一致。 -
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 -
This paper addresses the buildup of an electric power supply and distribution system as well as equipment configuration of a frequency variable speed regulation system in ku - shan oil pipeline and describes the phenomena of voltage offset, voltage flicker, voltage distortion and frequency offset
摘要介紹了庫鄯輸油管道供配電系統的組成及變頻調速系統的設備配置，對電網波動造成的電壓偏移、電壓閃變、電壓畸變、頻率偏移等現象進行了闡述。 -
The design, commissioning and application of variable frequency regulation system for drain pump of no. 2 low - pressure heater of no. 4 generator ( 200 mw ) in jingmen thermal power plant were introduced
摘要介紹了荊門熱電廠4號機組（ 200mw ）採用的2號低壓加熱器硫水泵變頻調節系統的設計、調試及應用情況，該系統克服了傳統的定速調節的諸多弊端，取得了很好的經濟效益。 -
Based on studying of the multi - level technique, a variable frequency speed regulation system based on the diode clamped three - level inverter is introduced in this thesis in detail. it includes ac - dc - ac main power circuit, snubber circuit, isolated driving circuit by optical fibre, delay time circuit on powering, sampling circuit of current and voltage, protection circuit and etc. a distributed power system ( dps ) which can reinforced the system ’ s security is developed to solve the power supply of the whole system
本文在研究多電平技術的基礎上，研製了一套以二極體箝位式三電平逆變器為基礎的變頻調速系統，包括:交-直-交主功率電路，緩沖電路，光纖隔離驅動電路，上電緩沖延時電路，電流、電壓采樣電路，保護電路等。 -
The test shows that the vector control speed system has low inverter power, high power factor, perfect dynamic performance, wide speed range. it suits the variable speed system of fan machine and pump and has good prospect on industry application
試驗證明調速系統具有變頻器功率小、功率因數高、動態性能好、調速范圍廣等優點，適用於風機、泵類負載的調速，有良好的工業應用前景。 -
Design of continuously variable power split transmission system for automotive applications
汽車採用的無級變速功率分流變速器的設計 -
This dissertation presents the structure, the principle and the design of frequency - variable power system with the application of dsp ( digital signal processor ) and ipm ( intelligent power module )
變頻技術是電力電子技術的主要組成部分，應用十分廣泛，它主要應用在交流電機的調速和供電電源兩個領域。 -
According to the features of precision, efficiency, inspection dimension and accuracy varying great range, designed closed - loop control system composition of servomechanism and grating to assure system ’ s precision, smooth, efficiency, and to realize the great dimension range measurement ; designed image capture system composition of ccd, automatic variable power lens and self - adaptive lighting, to realize integration of large inspection precision range ; designed electric control and software system to make the inspection convenience and fast. finally, developed the prototype instrument
針對微電子產品視覺檢測的精密、高效、檢測精度和測量范圍變換大的特點，設計了伺服驅動、精密光柵採集組成閉環控制系統以保證運動精密、平穩、高效，和大的尺寸測量范圍;設計了由ccd攝像機、大范圍自動變倍鏡頭和自適應光源組成的圖像採集系統，集不同精度等級的檢測於一體;設計了電氣控制和軟體系統使檢測方便快捷。 -
Coordinated control system is a complicated multi - variable control system. it is valuable to study the coordinated control system for improving the automatic degree and security economical operation level of thermal power plant
單元機組協調控制系統是一個復雜的多變量控制系統，研究單元機組協調控制系統，將有助於提高火電廠的自動化程度和安全經濟運行水平，因此有重要意義。
分享友人