dc are source 中文意思是什麼
dc are source
解釋
直流弧光源-
The temperature rises and the dc voltage are proportional to the power dissipated, which is equal to the power of the source being measured if the input impedance is suitably matched to the source impedance
熱偶冷熱結之間的溫度差和熱電勢均正比于耗散在ta2n電阻上的微波功率，如果熱偶的工作電阻與同軸傳輸系統電阻匹配適當，該功率就等於被測源的功率。 -
This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply. the problems such as negative sequences current, voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper. the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop
電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。 -
A novel topology of dc - rail zvt voltage source three - phase pwm inverter is advanced. the principle, design considerations, modulation index and efficiency of the proposed inverter are discussed in detail
提出了一種新型直流母線零電壓過渡電壓源三相pwm逆變器，並對該電路的工作過程、參數設計、調制系數以及工作效率等進行了詳細的分析和試驗研究。 -
The main contents in my thesis are as follows : 1. a grating feedback, tunable diode laser ( toptica dc 100 ) is used as a seed source and injected into a high - power slave laser
主要內容如下： 1用一個光柵反饋可調諧半導體激光器注入到一個從激光器中，實現了主從激光器的同步運轉。 -
Abstract : the initial charge - process of dc capacitor and the steady working state of active voltage - source - inverter power filters are analyzed in this paper, and four new parameters are proposed to judge the working performance of active power filters and to aid their design
文摘:分析了電壓逆變器型單相有源電力濾波器直流側儲能電容器的初始充電過程（有源電力濾波器的起動過程）和有源電力濾波器的穩定工作狀態，並提出了判定有源電力濾波器性能、幫助有源電力濾波器設計的四個標識性參數。 -
The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320lf2407 are selected to form high performance alternating current ( ac ) excitation system of asg in this dissertation after detail schemes argumentation
本論文在詳細方案論證的基礎上選擇了交直交電壓型主電路和數字信號處理器tms320lf2407構成高性能的異步化同步發電機交流勵磁系統。 -
Four typical actively clamped resonant dc - link inverter ( acrdcli ) applications - - - - - - full - bridge voltage source inverter ( vsi ), half - bridge vsi, full - bridge current source inverter, as well as three - phase vsi, are selected as models
論文分別以全橋、半橋、電流型以及三相拓撲結構為範例進行雙幅諧振直流環節技術研究。 -
Hvdc light is a kind of new dc transmission technology developed from the traditional hvdc, with voltage source converter ( vsc ) and igbt as main components. the basic principles of vsvpwm are studied, and an approach to simulate vsvpwm based on pscad / emtdc is put forward in this thesis
輕型高壓直流輸電（ hvdclight ）技術是在傳統直流輸電基礎上發展起來的一種新型輸電技術，其主要部件是以絕緣柵雙極晶體管構成的電壓源換流器（ vsc ） 。 -
The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320f240 are selected to form high performance alternating current ( ac ) adjusting - speed system in this dissertation after detail schemes argumentation
本論文在詳細方案論證的基礎上選擇了交?直?交電壓型主電路和數字信號處理器tms320f240構成交流調速系統。 -
High voltage dc switching power supply with high frequency and high power are required by the development of many new technologies, such as numeric imaging of x - ray for medical use, compact pulsed power source etc. the technology of high voltage dc switching power supply has been successfully developed in advanced countries, but is under development in china
許多高新技術的發展，如醫用x線機數字化成像技術，緊湊型脈沖電源技術等，都需要採用大功率、高頻化的高壓直流開關電源。在國外高壓大功率開關電源技術已較為成熟，我國對這方面的研究也一直在進行，但目前還不成熟。 -
The whole large current testing system based on voltage - frequency converting technique has been finished in this paper, and the dc voltage signals, power frequency ac voltage signals are tested by this computer - testing system, the results are good, then the current of current - source in the synthetic circuit are tested by this computer - testing system
本文完成了一整套基於壓頻轉換技術的大電流測試系統，首先測量了直流電壓信號、工頻交流電壓信號，然後完成了對合成迴路中電流源電流信號的測試。
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