ac network 中文意思是什麼
ac network
解釋
交流電網-
Analysis of ungrounded neutral ac electric network insulation fault
中性點不接地交流電網絕緣故障分析 -
Thirdly, the paper discusses the driver of the peripheral equipment, how to port the uc / os - n and uclinux, h. 323 protocol and the application of the system in the digital speech classroom. also some software and hardware measure are adopted to enhance the system stability. at last, the shortcoming and the something to be improved are given. dsp can be used to realize real - time speech coding algorithm, and after porting ( ac / os - n, arm can manage the keyboard, the lcd and the ethernet peripheral etc. then the embedded network system with specific purpose can be used in others fields, such as pda, set of top, web tv, ect
在實際設計實現中，為提高系統軟、硬體整體穩定性和可靠性，使用了以下幾種方法： （ 1 ）低電壓復位、抗電源抖動能力、增加時鐘監測電路、抗電磁干擾能力、散熱等技術； （ 2 ）多層pcb設計，線路板結構緊湊，電源部分採用數字5v 、 3 . 3v 、 3v 、 1 . 8v和模擬5v多電源供電； （ 3 ）選用表面貼和bga封裝的器件； （ 4 ）按照軟體工程的要求進行系統分析，規劃系統框圖、流程分析、模塊劃分，減小了不同模塊的相關性，從而最大限度避免了錯誤的發生。 -
Insulation supervision technology of high - voltage ac network
高壓交流電網的絕緣監察技術 -
Ac network analyzer
交流計算盤 -
2. in order to improve the luminescence properties, cds nanoparticles entrapped in an acrylic acid - hydroxypropyl acrylate copolymer ( ac - hac ) network were synthesized by in - situ synthesis method
用原位合成法，以具有強配位能力的聚丙烯酸?丙烯酸羥丙酯（ ac - hac ）為基體在水溶液中合成了cds納米微粒。 -
The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems
艾默生網路能源產品涉及通信電源、印刷板板裝電源、客戶定製電源、 ups 、機房專用精密空調、戶外一體化通信機櫃、自動切換開關、動力網路保護產品、蓄電池、低壓配電和精密配電櫃、動力設備及環境監控系統、電力操作電源、交流變頻調速器等領域。 -
Voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed
採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源 -
Abstract : voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed
文摘:採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源 -
In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點，對其中的牽引變壓器的工作狀態進行了分析，指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題，同時給出了相應的一些解決方法。 -
Ac servo system beasd on fuzzy b - spline function neural network control
樣條基函數神經網路控制的交流伺服系統 -
Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed
論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。 -
Being a local approximating neural network, cerebellar mode arculation controller ( cmac ) has the distinctive ability of disposing nonlinear mapping and building nonlinear relationship. the paper proposes a cmac - based control scheme in which learning and controlling are alternately processed. the method is applied to the ac servo control system and obtain high quality output
作為局部逼近神經網路之一的小腦模型關節控制器（ cmac ）對處理非線性映射、建立非線性關系具有獨特的優點，本文將cmac應用於交流伺服電動機系統的控制，採用邊學習邊控制的工作機制，取得了良好的實驗結果。 -
（ 2 ） the major circuit has been established, composed of rectifier 、 buck - chopper 、 push - pull inverter and matching network, which realizes high - power supersonic ac output. to achieve maximal output power, the pulse frequency modulation ( pfm ) has been applied to auto - adjustment of output frequency, which corresponds to the load ' s resonant frequency
（ 2 ）建立了超聲電源主電路，其中包括：整流、直流斬波、推挽逆變器和匹配網路等部分，實現了大功率超聲頻交流電的輸出，輸出頻率的脈頻調制（ pfm ）和輸出功率的脈寬調制（ pwm ） 。 -
The paper is concerned with the control strategies of uncertain nonlinear systems and the application on the ac speed adjustable systems. its main contents includes neural network control, differential geometry control and algebra control
本文研究了非線性系統的控制策略及其在交流傳動中的應用，主要的內容涉及三個方面：神經網路控制、微分幾何控制和代數控制。 -
In this thesis, we achieve a test - bed of motion control based on dsp using tms320f240 evm, xds510 emulator, pc, ac servo driver, ac permanent magnet synchronic servo motor and two direction graph plotter etc. the thesis analyzes the influence that the dynamic characteristic and the change of parameter of the system cause contour error of the system, then adopts fuzzy adaptive pid control method, single neural cell pid control method and fuzzy - neural network control method, and introduces the influence that the control methods lead to dynamic characteristic and contour error of the system. finally some useful results are obtained by analyzing and comparing the control methods, and it is possible to make the combination of advanced control methods and high efficiency of dsp
在此基礎上，分析了系統的動態特性和參數變化對系統輪廓誤差的影響，先後採用了模糊自適應pid控制策略、單神經元pid控制策略以及模糊神經網路控制策略，並詳細分析和比較了這幾種控制策略對系統的動態特性和輪廓誤差的影響，得出了一些有用的結論，以使先進的控制策略和dsp的高效數據處理能力的結合成為可能。 -
Dual hopfield neural network based model reference adaptive control of ac drive system which has the capability of online parameters tracking
參數在線跟蹤的交流傳動系統雙神經網路模型參考自適應控制 -
The design of ac servo system based on ga and fuzzy - neural network
遺傳演算法的人工智慧在交流伺服中的設計 -
On - line detecting inter - turn short circuit in stator winding of ac electrical machine based on fuzzy neural network
基於模糊神經網路的電機定子繞組匝間短路故障的在線診斷 -
Dsp - based monitoring of electric parameters and analysis of ac harmonic signal of power network of high - power device
大功率設備電網的電力參數監測及交流諧波分析 -
Because his motor required two alternating currents and four wires, it could not be merely dropped into existing single - phase ac systems ; one would need to install additional wires to the network
因為他的馬達需要兩道交流電與四條導線，所以沒法直接用在現有的單相ac系統；電力網上還得再加裝導線。
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