短路轉子 的英文怎麼說
中文拼音 [duǎnlùzhuǎnzi]
短路轉子
英文
short circuited rotor-
Because the fault of field windings turn - to - turn shorted do not cause much effect of the operation of the machine or its fault characteristics are not very clear, most of the faults are neglected
轉子匝間短路故障對機組正常運行影響不大或故障特徵不明顯，因此許多匝間短路故障被忽略了，但長期運行匝間短路故障會導致轉子線圈一點甚至兩點接地。The two - point to earth short fault may cause short currents whic h can lead to serious accident. so it is necessary to monitor the state of field windings of turbo - generator and detect the kind of fault and predict its inclination. thus the security level of power system will be improved
由於發電機轉子兩點接地故障時會產生較大的短路電流，導致惡性事故的發生，因此對發電機轉子繞組進行狀態監測，判斷短路故障的形式和趨勢是十分必要，有助於提高系統安全運行水平。Based on the analysis of the magnetic characteristics, an artificial nerural network can be built and the fault samples can be gained by theoretical arithmetic. the results of computation example show that the method can not only judge if shorted field turns exit but also estimate fault turns ratio
根據該結論構建了發電機故障診斷的神經網路，並直接獲得發電機在額定運行工況下對應的故障樣本，用於故障診斷，不僅對轉子繞組匝間短路故障的存在性，還對故障的嚴重性做出了正確的判斷。Shorted rotor winding is a usual electric fault of synchronous machines. based on the analysis of fault mechanism especially the magnetic characteristics of tum - to - turn short circuit of rotor windings in turbo generator, the paper studies the diagnose method, which combines the traditional method with the intelligent method, to identify the fault and the severity
轉子繞組匝間短路是一種常見的發電機電氣故障，本文對其故障機理和磁動勢進行了分析，將傳統的方法和智能化方法相結合，對轉子繞組匝間短路的存在性和故障嚴重性進行了診斷。However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down
通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果，實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯，但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大；氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用，但經過高溫處理后這種作用消失；氮化硅薄膜能提高單晶硅和多晶硅的少子壽命，具有表面鈍化和體鈍化的雙重作用；氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度，進而使電池效率有不同程度（絕對轉換效率0Protected three - phase induction motors with short - circuited rotors
裝有短路轉子的防護型三相感應電動機Totally - enclosed three - phase induction motors with short - cicuited rotors. class e
裝有短路轉子的全封閉型三相感應電動機. e類The effect of oil filler test that is improved is correspondence to the overspeed test, so it is no use to do overspeed test repeatedly. it can reduces the deterioration of the rotor ' s longevity, and that, it can reduce the starting time of the units, which can reduce the cost of fuel consumption and steam deterioration. especially to large capacity steam units that use the same style device, it will get large economic effectiveness
對使用同一原理的裝置而言，這種新的技術思路具有指導性意義，改進后的注油試驗使用起來的效果可以與超速試驗相對應，不需要重復做超速試驗，可以減少對因超速對轉子的壽命的損耗，並且還縮短了試驗所需要的時間，相應減少機組的啟動耗時，節約燃料成本及汽水損耗，尤其是對使用同類裝置的大容量機組而言，能夠獲得的經濟效益將是巨大的。The squirrel - cage winding consists of aluminium or copper bars embedded in the rotor slots and shorted at both ends by aluminium or copper ends rings
鼠籠型繞組由鋁或者銅制的金屬條嵌入轉子的槽內並用鋁或者銅制的環在兩端短路。Methods for the determination of interturn short - circuit in the rotor winding of cylindrical synchronous generators
隱極式同步發電機轉子匝間短路測定方法During its operation, the rotor of the machine is always under the great suppression of centrifugal force. the surface of rotor is the most important part to enduring the forces and thermal energy. so the windings of rotor are in a common problem of happening one - point to earth short fault, two - point to earth short fault, or turn - to - turn short fault
汽輪發電機是一種高速隱極式同步電機，在其運行時，轉子受到強大的離心力的作用，而轉子表面是承受機械應力和發熱的最關鍵的部件，因此汽輪發電機轉子繞組容易發生一點接地、匝間短路和兩點接地短路故障。And matrix equations calculating the responses of coupled vibrations are deduced. a set of software analyzing coupled vibrations is developed. the responses of flexural vibration, torsional vibration and torsional torque are analyzed under some fault cases, including mass escaping of low - pressure and generator rotors
利用該軟體，分析了低壓缸和發電機轉子發生質量飛脫事故，發電機出口端發生三相、兩相短路故障，發電機非同期並網故障以及電網三相短路重合閘故障時，機組軸系的彎振、扭振及扭矩響應情況。Secondly, a series of novel detection schemes are presented creatively. furthermore, this paper proposes the joint detection scheme for rotor bar breaking and stator winding inter - turn short circuit fault in squirrel cage asynchronous motors, for the first time. meanwhile, a parameter identification technique based approach to detect stator / rotor over - heating fault is also presented
在此基礎上，提出了異步電動機轉子斷條與定子繞組匝間短路故障檢測新方法；首次提出了籠型異步電動機轉子斷條與定子繞組匝間短路故障聯合檢測方法；基於參數辨識技術，提出了異步電動機定轉子繞組過熱故障檢測新方法。Firstly, a method to estimate the rotor speed, which is based on bp neural network, is introduced in this paper. secondly, the park vector approach is used to monitor and diagnose the inter - turn fault of the stator winding. finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the hilbert transform and digital filter
具體工作如下：採用bp神經網路對異步電動機轉子轉速進行無速度傳感器估計；對定子繞組匝間短路故障，採用派克矢量方法進行監測與診斷；對于轉子斷條故障，詳細介紹了一種新的基於希爾伯特變換與數字濾波的在線監測方法。Firstly, the fault features of rotor bar breaking and stator winding inter - turn short circuit are analyzed in this paper, deeply and thoroughly
本文對異步電動機轉子斷條與定子繞組匝間短路故障特徵進行了機理、模擬與實驗分析。As a result of compound material, there is large difference between the starting rotor parameters and the steaty - state work parameters. big error will be caused if the parameters which are measured by common non - load and locked - rotor tests are used to analyze the starting performance
由於復合材料的作用，使得復合籠條轉子感應電動機起動時的轉子參數與穩態運行時有較大差異，所以用常規空載、短路實驗測得的參數，在分析起動性能時誤差較大。With the 300mw turbo - generator as an example, the effects of saturation on operational characteristics and the stator and rotor ' s practical dimensions and configuration on the saturated characteristics have been studied ; some work on the grid division strategy considering the practical dimensions and configuration and the precision of the nonlinear finite element equation also has been studied. then the program for calculating and analyzing turbo - generaors " steady characteristics has been compiled and devised
本文在系統地研究了汽輪發電機運行特性（飽和特性、短路特性、零功率因數負載特性和u形曲線） 、非線性有限元方程計算精度、定轉子實際結構對飽和特性的影響及計及定轉子實際結構時的剖分策略等問題之後，進一步研究開發了適于不同型號汽輪發電機穩態分析的通用性有限元軟體。The distinguished contributions of this paper are listed in details as the following. 1. the multi - loop mathematical models under the conditions that the squirrel cage asynchronous motor is healthy, faulty with broken rotor bars or with stator winding inter - turn shorts are deduced thoroughly, and improved necessarily
本文的主要研究成果如下： 1 .詳細推導了yn接、 y接、 d接籠型異步電動機在正常、轉子斷條及定子繞組匝間短路故障情況下的多迴路數學模型。Diagnosis of inter - turn short - circuit of rotor winding in generator based on ann
發電機轉子繞組匝間短路故障的分析與檢測Firstly, the theory and character of the shorted rotor windings is analyzed. a new intelligent method, i. e. genetic programming ( gp ), is introduced
由於轉子的匝間短路是發電機常見的一種故障，因此本文主要採用傳統的方法和智能方法結合，對發電機轉子匝間短路進行診斷。分享友人