畸變變壓器 的英文怎麼說
中文拼音 [jībiànbiànyāqì]
畸變變壓器
英文
distortion transformer-
Dbw, sbw series single - phase and three - phase super power voltage regultor of new age having the advantages of large capacity, high efficiency, wide range, high precision, strong protection, without wave - form distortion, reliadle operation and casy installation, etc
Sbw系列單、三相大功率電力穩壓器是我公司在參數照國際同類產品、結合我國國性的基礎上研製生產的新一代節能電力穩壓器,具有容量大、效率高、穩壓范圍寬、精度高、保護功能強、無波形畸變、運行可靠、維護簡便等特點。Series reactor is applied to ac power system with rated voltage of 6kv - 63kv and series connected with shunt capacitor banks for restraining wave distortion in grid voltage so as to improving the quality of power system and ensure the safety of its operation. it can restrain harmonic current and surge current in capacitor banks so that the capacitor will operate reliably
Ckdk型串聯電抗器,適用於6 63 kv電力系統中,與並聯電容器相串聯,用以抑制電網電壓波形畸變,從而改變電網質量和保證電力系統安全運行抑制流過電容器組的諧波電流和限制合閘涌流,從而保護電容器的安全可靠運行。Dry - type air - cored series reactor is applied to ac power sys - tem with rated voltage of 6kv 10kv 35kv and series connected with shunt capacitor banks for restraining wave distortion in grid voltage so as to improving the quality of power system and ensure the safety of its operation
乾式空芯串聯電抗器適用於6kv 10kv 35kv電力系統中與並聯電容器組串聯,用於抑制電網電壓波形畸變,從而改善電網質量和保證電力系統安全運行,抑制流過電容器組的諧波電流和限制合閘涌流,從而保護電容器使之安全運行。Output voltage and current is often distorted in half bridge converter because voltage unbalance of input capacitors though its application is very abroad
摘要半橋逆變器應用廣泛,但存在直流分壓電容不均壓,使分壓電容中點電壓漂移,導致輸出電壓和電流畸變的缺點。In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律,並耦合進氣畸變的影響,同時與壓氣機氣動性能和氣動穩定性相關聯,作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,採取在靜子葉片表面埋入動態壓力傳感器的實驗方法,對葉尖、葉中和葉根三個截面的動態壓力進行了測量,獲得了大量的可靠的實驗數據。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。Traditionally, the resolving - transformer consists of former windings and vice windings. but the resulting output voltage will have aberrance owing to the existence of winding resistors and reactance leakage
傳統上的旋轉變壓器常採用原副線圈來組成,由於線圈電阻和漏抗的存在,將使最終輸出電勢出現畸變。In accord with the state standard about harmonic. the harmonic permission value of tangqian line is calculated. some measurement data are shown and analyzed, and some main conclusion is drawed that the 7th harmonic voltages of tangqian line is near to the permission value, total harmonic voltage distortion ratio has oversteped the permission value. the 3th harmonic, the 5th harmonic, the 7th harmonic and the 9th harmonic current from tangqian line all overstep the permission, the largest 5th harmonic current ratio in tangsc reaches 44 %, the 7th harmonic and the 9th harmonic current in tang7c and tangsc is large maybe because the harmonic current is magnified. this paper studies the model of each element in tang yin substation
根據有關公用電網諧波的國家標準,計算出湯牽線注入湯陰變電站的諧波電流允許值,從實測數據可以得出一些重要結論:湯牽線7次諧波電壓含有率的最大值接近國標中的限值,湯牽線的諧波電壓總畸變率的最大值已超標;湯牽線注入電網的3 、 5 、 7 、 9次諧波電流都超標;湯6c電容器的5次諧波電流含有率較高,最高達到44 ;湯7c和湯8c電容摘要器的7次和9次諧波電流含有率偏高,原因可能是發生了諧波電流放大現象。According to the no - loading waveform deviation factor, the prototype conforms to the national design standard and practical needs in the engineering. more important, the high voltage is achieved. in the condition of considering core saturation and damping winding influence, the influence to powerformer of the no - loading tooth harmonic emf is smaller than conventional generator, and the waveform deviation factor of the former is smaller, too
由求得的樣機空載電勢波形畸變率可知,該樣機滿足國家設計標準和工程實用要求,更重要的是,實現了產生高壓的目的;考慮鐵心飽和、考慮阻尼繞組影響情況時,電力發生器與具有相同尺寸(除定子槽形)的傳統發電機相比,空載齒諧波電勢對電力發生器的影響較小,前者的空載波形畸變率較小。Shock absorber is an important part of the vehicle suspension system. as an essential damping part of chassis components, shock absorber is closely connected with the operation, security and comfortabieness of the vehicle. the outer performance of shock absorber shall be indicated by the indicator diagram and the speed characteristic. the double - tube hydraulic shock absorber critical velocity is very low and easy to make outer performance degradation
減振器在車輛懸架系統中發揮著重要的作用,作為汽車底盤的主要阻尼元件,它不僅影響到車輛的舒適性,還關繫到車輛的操縱性及安全性,其外特性由示功圖和速度特性表示;普通雙筒液壓減振器臨界速度較低,易發生外特性畸變,且低溫條件下更易發生畸變。To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運,使農村電網的諧波污染日趨嚴重,通過對農村地方電網主要諧波源的分析,最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數,以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式,以進行諧波治理。To study the aircraft - engine stability assessing technology about total - press distortion, four different structure insert - boards and testing schemes are designed, based on the technology of russian insert - board distortion and assessing compressor stability of english and usa. the low speed compressor ( lsc ) at college of energy and power in nuaa is used to carry out the all insert - board distortion experiments studies
為了能夠更清楚地認識俄羅斯關于總壓畸變下的航空發動機穩定性評定的技術,本文在了解俄羅斯插板畸變試驗技術和英美等國家的穩定性評定技術的基礎上,設計了4塊不同結構形式的插板畸變擾流器裝置及試驗測量方案,利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,完成了各插板的畸變試驗。Through the calculation, the filters have been selected corresponding with voltage harmonic distortion standard. and the steady state rating of the parameters are calculated
通過計算,選擇符合電壓諧波畸變標準的交流濾波器,並進行各元件的穩態額定值的計算。In this thesis, assembler language was applied to program to realize dsp algorithm controller, which can perform such main computing as data collecting, self - adaptable distortion current detecting based on linear nerve cell, capacity voltage controlling in the side of direct current based on fuzzy control, pwm pulse width computing based on unsymmetrical rule sampling, etc. quick control speed ( one work period is 50 s ) and high accurateness feature largely in the controller
本文採用匯編語言編程實現了dsp演算法控制器,它完成了數據採集、基於線性神經元的自適應畸變電流檢測、基於模糊控制的直流側電容電壓控制、基於非對稱規則采樣的pwm脈寬計算等主要演算法的運算。該控制器具有控制速度快(一個工作周期為50 ) ,精度高等特點。The lower temperature is the easier degradation. with compressed gas inside of the double - tube gas hydraulic shock absorber, a suitable pressure on the hydraulic tube, with obviously improves the critical velocity of shock absorber and then eliminates the possible distortion of outer performance degradation
由於雙筒充氣液壓減振器中充有壓縮氣體,在儲油筒內建立了一定的背壓,因而能夠明顯地提高減振器的臨界速度,有效地消除外特性畸變,顯著地改善減振器的性能,從而提高車輛懸架系統的品質。In recent years, current rectifiers, frequency converters, arc furnaces and other power electronic devices etc have been increasingly used in power network. with nonlinear, impactive, unbalanced characteristics, they generate lots of harmonics and cause distortion in power network current or voltage
近年來,配電網中整流器、變頻裝置、電弧爐以及其它電力電子設備等的應用不斷增加,由於這些負荷具有非線性、沖擊性和不平衡的用電特性,引起供電網中的電流(電壓)畸變,產生大量諧波。As technique of power electronics develops, the load with nonlinear, impactive, unbalanced characteristics such as current rectifiers, frequency converters, arc furnaces have been increasingly used in power network in recent years. they generate lots of harmonics and cause distortion in power electrical network current ( voltage )
隨著電力電子技術的發展,近年來電網中象整流器、變頻器、電弧爐這樣具有非線性、沖擊性和不平衡用電特性的負荷不斷增加,引起供電網中的電流(電壓)畸變,產生大量諧波。With the broad application of the electrical and electronic technology in the industry branches and the power apparatuses, the number of non - linear loads is much more and more, and the capacity of them is biggish, so a mass of harmonic is injected into the power system, which produces the waves of voltage and current in power system to be aberrant seriously
隨著電力電子技術在各工業部門和用電設備上的廣泛應用,非線性負荷數量越來越多,容量也越來越大,諧波大量注入電網,使電力系統電壓、電流波形發生嚴重的畸變。由於大多數儀器、儀表是針對工頻正弦波設計的,因而造成指示數據不正確。The extensive applications for power electronic apparatus and nonlinear equipment distort the waveforms of voltages and currents. as a result, power quality is going much worse. in addition, due to the improvement of industrial automatization, such parts of an apparatus as mpu and plc are applied to industrial process controls, which are disturbed easily by stirs from power system
一方面由於電力電子器件和非線性設備的廣泛應用,使得電網中的電壓、電流波形發生畸變,造成電能質量的嚴重惡化;另一方面由於工業自動化水平的提高,微處理器和plc等智能器件大量應用於工業過程式控制制,而這些精細過程式控制制更容易受到電力系統抖動的影響,因此現代工業對電能質量提出了更高的要求。分享友人