dc generation 中文意思是什麼
dc generation
解釋
直流電的產生- dc : ＝1 direct current 直流電：a DC generator 直流發電機。2 District of Columbia 哥倫比亞特區〈美國首...
- generation : n. 1. 代〈約30年〉，世代，時代；同時代的人。2. 一代[一世]。3. 生殖，生育；發生，產生。4. 【數學】（面、體、線的）形成。5. 完善化階段，完善化方案，完善化的模型；發展階段。
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Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong
絕大多數員工擁有本科和研究生以上學歷，在電力系統和計量系統工作多年，從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上，為約500多家電力工業系統的發供電部門如北京供電局，廣州電力局，深圳供電局，三峽電廠，廣州抽水蓄能電廠，田灣核電站等等，科研調試部門如廣東省電力試驗研究所，湖北省電力試驗研究所等等與設備生產廠如siemens ， abb ， alstom ， toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所，包括國家計量院，清華大學，中國運載火箭研究院，空間技術研究院，航天二院，成飛，西飛和各省市計量院，電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。 -
As an important part of fuel cell power generation system, dc / dc converter affects a lot to the volume, weight, cost, efficiency and performance of the system
Dc / dc變換器作為燃料電池發電系統的一個重要組成部分，對整個系統的體積、重量、成本、效率和性能的影響非常大。 -
Rdp - s series hp sinks, as new generation products, are specially developed for such rectifying devices as high power dc power supply, ups power, and telecommunication power
系列熱管散熱器，是我公司為大功率直流電源、 ups電源、通訊電源等變流設備而研製的新型散熱裝置。 -
Company development and production of products mainly include : industrial control and monitoring, dc converter, exchange converter, permanent magnet motor, power generation electronic control system, various industrial control module, railway traction systems and urban transport systems
公司研發及生產的產品主要有：工業控制及監測、直流變流器、交流變流器、永磁電機、電力發電電控系統、各種工業控制模塊、鐵路牽引系統和城市交通系統等。 -
Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent
本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。 -
These years along with the development of power - electronics technique and micro - control technique, permanent magnetic brushless dc motor is characterized by small volume, light weight, high efficiency, low noises, big stand - alone capability and reliability appeared and matured. so it is hopeful to become new generation submarine propulsion motor
近年來隨著電力電子技術和微控制技術的迅猛發展而成熟起來的永磁無刷直流電機具有體積小、重量輕、高效低噪、單機容量大且可靠性高的特點，從而極有希望成為新一代潛艇推進電機。 -
The hardware design includes these main circuits such as current sensing, dc bus voltage sensing, space - vector pwm waveform generation, the system protection and so on
在硬體實現中，重點討論了電流、電壓、速度檢測單元以及pwm發生單元和系統保護功能等。 -
Compared to other machine types, switched reluctance motor ( srm ) offers an excellent balance between cost, reliability, power density and high speed capability. however the competence of srm used as a novel dc generation system can not be neglected. this dissertation is devoted to theoretical study and engineering practice on switched reluctance generator system
開關磁阻電機作為一種電動調速系統具有結構簡單堅固、低成本、高容錯性能以及高速運行的能力，同樣開關磁阻電機作為一種新型的直流發電系統也具有很大的應用潛力。 -
4 ) the thz resistivity of doped zn0. 95cd0. 05te < 110 > crystals changes with different doping following the similar way as the dc resistivity, which results in different thz wave generation efficiency
對于有摻雜的zn吧人內。 p 11o單晶，通過不同摻雜可以改變zn95cd ste叫單晶的電阻率，從而改變樣品產生thz輻射的效率。 -
Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net
實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。 -
Series zsn4 dc motors are the new generation of z4 series dc motors with high starting torque and overload. mainly used as the drive equipment for cement rotary kiln
是在z4系列直流電動機基礎上開發設計的具有高起動轉矩、高過載能力電機，主要應用於驅動水泥回轉窯等設備。
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