dc power system 中文意思是什麼
dc power system
解釋
直流電力系統-
In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical
在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。 -
We developed the power system of electric drill based on dc - ac. the system use the technique of spwm frequency cowersation control. it changed th d. c provided by trolly wire of d. c motor into stable a. c adopted igbt and driving circuit adopted high speed module of exb840
針對當前我國煤礦電鉆電源的使用現狀，提出研製dc - ac變換的電鉆電源系統，該電源系統直接利用spwm變頻控制技術，將井下直流電機車的架空線所提供的直流電轉變成頻率是50hz的1 . 27v的穩定交流電。 -
Through comparison of characteristics for different dc / dc topologies, buck - boost converter was selected as main topology of the power system
在充分考慮不同dc / dc變換器拓撲特點的基礎上，本文選用了buck - boost作為系統的主電路拓撲。 -
The agilent 6611c system dc power supply is an ideal power source for demanding production test applications
Agilent 6611c系統直流電源供應器為嚴苛的生產測試應用，提供了一個理想的電源。 -
The work principle of dual stator - winding induction generator system, and the researches on practical application of dual stator - winding generator system are analyzed in detail. aimed at the work condition of wide rotor speed and optimization of static reactive power generator ’ s volume, the performance of dynamic state and static state and optimal control of high - voltage dc generator system based on dual stator - winding induction generator, are studied in this paper. these researches not only achieve the work characteristic of dual stator - winding induction generator system, but also set up the foundation of optimal design of dual stator - winding induction generator and engineering realization of dual stator - winding induction generator system used in wind generating
本文闡述了定子雙繞組發電機的基本工作原理，基於matlab軟體建立了定子雙繞組感應電機發電系統的模型，並在此基礎上詳細分析了定子雙繞組感應電機發電系統的工作機理、影響兩套定子繞組容量比的因素等，從而摸清了該系統的特性，尤其是定子雙繞組感應電機高壓直流發電系統在變轉速、變負載下工作的特性，從而為該系統的工程實現奠定了重要的理論基礎。 -
This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design
首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。 -
This paper presents two new electric system devices, a grounding and short - circuit fault indicator and an intelligent hybrid dc contactor. the fault indicator may be used in mid to high voltage power system
其中，短路與接地故障顯示裝置可用於檢測中、高壓電力系統短路或接地故障，該裝置具有強弱電隔離、安全性好、安裝方便、能耗低、成本低的特點。 -
One components of the equipment : sf - ggp - 1solid state hf high frequency welder machine is composed by four parts : sor dc power supply vibratory output. touch screen plc control and wind - water exchange water cooling system
一， sf - ggp全固態高頻焊機主要由scr dc電源部分振蕩輸出部分觸摸屏plc控制部分三部分組成。 -
Based on comparison of several motor candidates, doubly salient permanent magnet ( dspm ) motor is a good choice for it ’ s outstanding performance. similar to conventional drive system, dspm brushless dc motor ( dspm - bldcm ) is composed of dspm motor and it ’ s controller. the controller is made up of three - phase full - bridge inverter, driver, dsp control unit and etc. for high power system, every switch of three - phase inverter is actually made up of four mosfets in parallel
在充分考慮國內外不同的液壓泵電動機的基礎上，本文選用了雙凸極永磁電機作為整個系統的電機本體，並配以電動機控制器（控制器包括三相橋式功率變換器、驅動電路、 dsp主控單元、電流采樣及預處理和位置采樣及預處理等主要部分）組成整個液壓泵電動機系統。 -
In high precision dc servo system, the pwm power amplifier based on power electronic devices is mainly used
在高精度伺服控制系統中，大多採用基於電力電子器件的脈寬調制型功率放大器，簡稱pwm功率放大器。 -
A novel high - power pollution - free smps is presented in this paper, which accomplishes simultaneously the goal of soft - switching pwm, the input / output isolation, the output voltage regulation and three - phase pfc with a single - stage power processor and simple pseudo - phase - shift control circuit. therefore, compared with the normal two - stage system, the single - stage power supply has simpler structure, lower cost, higher efficiency and easier to control. the proposed smps can be used in the three - phase power system, and can output high power over kw - order and input / output ( i / o ) isolation dc power supply
本文提出的新型無污染大功率開關電源正是採用三相三線制輸入電源，利用單級偽相移零電壓零電流開關脈寬調制（ pps - zvzcs - pwm ）全橋變換器完，成功率因數校正（ pfc ）和輸出電壓快速調節、隔離的雙重功能，並且該變換器開關管在零電壓或零電流下通斷，顯著的減小了emi 。 -
The protection and control system in subway dc power supply systems play a key role in ensuring the safety and reliability of the sub way
摘要地鐵直流供電的保護與控制系統對確保地鐵的安全可靠運行起著關鍵作用。 -
This dissertation is devoted to theoretical study and engineering practice on dc / dc converter of secondary power supply in hvdc power system
本文研究高壓直流電源系統中的二次電源dc dc變換器。 -
There are two kinds of secondary power supply in high - voltage dc electric system, one is dc / dc converter that converts 270vdc to 28vdc, the other is static converter that converts 270vdc to 115vac / 400hz
它的二次電源有兩種，一種是把270vdc變換為28vdc的直流變換器，另一種是把270vdc變換為115v 400hz交流電的靜止變流器。 -
High - voltage dc ( hvdc ) aeronautical power system has the advantages such as low weight, easiness to realize redundancy, uninterruptible power supply and high power density, it has been attracting more and more attentions
高壓直流航空電源系統具有電網重量輕、易於實現冗餘與不中斷供電以及二次電源功率密度高等特點，近年來成為國內外研究的熱點。 -
Reecat company adapts dc - power test system, go on speed performance test, load test, heat circulation test, durability test. use in motorcycle matching test, catalyst performance aging test
利凱特使用的是直流電力測功機系統，可進行速度特性試驗負荷特性試驗熱磨合循環試驗強化耐久試驗，主要用於摩托車匹配試驗和催化劑性能及老化試驗。 -
Reecat company adapts dc - power test system, go on speed performance test, load test, heat circulation test, durability test. use in motorcycle matching test, catalyst performance & aging test
利凱特使用的是直流電力測功機系統，可進行速度特性試驗、負荷特性試驗、熱磨合循環試驗、強化耐久試驗，主要用於摩托車匹配試驗和催化劑性能及老化試驗。 -
Based on the theory of associated and decentralized control, this paper introduces the modeling method of ac / dc power system and control law deriving, which can be realized dispersedly and guarantee the stability of the system with optimal performance
摘要介紹了交直流電力系統關聯測量分散勵磁控制的建模方法和控制規律的求取，所得控制規律既可以分散實現，又能保證全局穩定且性能最優。 -
The 125 volt dc power system supplies power to the low draft trip switches
應翻譯為125伏特直流電源系統為低負壓跳車開關供電。 -
Based on the increasing battery - powered portable equipments, the author analyzed the primary modulating ways adopted in dc - dc power system at first, and reached the conclusion that the current control pfm modulation is able to satisfy the special requirements of mobility devices ’ power supplying system
基於採用電池供電的便攜式電子產品的應用背景，論文首先分析、總結現階段dc - dc轉換控制晶元的市場需求和發展趨勢，研究當前國內外主流的dc - dc轉換系統採用的調制方式和實現技術。
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