The electric force of end winding in hydrogenerator stator is analyzed and calculated in this paper, and a set of complete calculating method was given. 本文针对水轮发电机定子绕组端部电动力进行了分析计算,并提出一套完整的计算方法。
The inherent frequency and modal testing about end winding of generator stator are introduced, the vibration of end winding on-line monitoring is analyzed, a personal point of view is introduced. 对发电机定子绕组端部固有频率的测试及模态试验分析作了简要的介绍,对端部绕组振动的在线监测作了简要分析,同时提出了一些个人看法。
In this paper, the insulating fastness system in end winding for Three-gorges generator. 本文介绍了哈电生产三峡电厂水轮发电机绕组端部绝缘固定系统。
This paper introduces a relaxed damage of a Large Generator Stator, measurement and analysis of the mode of the end winding, good suggests on preventive measures of resonant vibration are given. 对这台发电机线棒松动处理前后的端部绕组进行了模态测试,对测试数据进行了比较分析,认为主要原因是产生了共振,并提出了相应的建议。
Based on electromagnet field, the stator end leakage magnet field is separated into leakage magnet field of general end winding and leakage magnet field of magnet partition; 由电磁场角度出发,定子端部磁场被分为常规端部绕组匝链的漏磁场和隔磁段部分绕组匝链的漏磁场;
Two-degree-of-freedom principal resonance and bifurcation of generator end winding under electromagnetic force and friction force 电磁力作用下发电机定子端部绕组的两自由度主共振
Aiming at the winding of cylinder column strainer, this paper analyses the fibre wiring of column according to the patch winding theory, proposes end winding pattern and an effective wiring plan which validates by experiments. 依据面片缠绕机理,针对圆柱形过滤器的缠绕成型,对圆柱的缠绕布线进行了研究,提出了端部模式化非测地线缠绕和一套有效的布线方案,并进行了试验验证。
The calculating method of the end winding electrodynamic force is given. Based on the structural characteristics of large generators, the natural vibration frequency and forced vibration equation of stator winding is set up. 文中给出了端部绕组的电动力计算方法,并根据大型电机的结构特点建立了定子绕组固有振动频率和强迫振动方程。
This paper addresses the purpose and significance of inherent frequency measurement of leads to stator end winding of large turbo generator, and introduces the measuring principle and the measuring work at site. 文章阐述了大型汽轮发电机定子端部绕组引线固有频率测试的目的和意义。介绍了测试的基本原理及现场测试情况。
With the virtual work principle, the basic kinetic equations of the stiffened laminated composite conical shells are established and expressed in terms of the displacements of stator end winding. Formulae of elastic constants of a single winding and the whole structure are given. 首先,建立了复合材料加筋圆锥壳体的基本运动方程,以及用位移形式表示的定子端部绕组固有振动控制方程,并采用复合材料理论给出了确定单根绕组及整体结构弹性常数的计算表达式。
The causes and preventing measures for the stator end winding incident are summarized in the paper. 文章总结了产生定子端部线棒事故的原因和防止措施。
This paper studies the corona protecting structure of the generator and the discharge characteristics of the all kind of PD, such as discharge in slot, and corona in end winding. 研究了大型发电机绝缘的防晕结构、发电机槽部电晕与端部电晕的形成,分析了发电机绝缘不同种类故障的放电特点。
The method given here is suitable for calculating the electromagnetic forces on end windings or the end winding leakage reactance. 本文提出的方法适用于分析计算汽轮发电机定子端部绕组的电磁力及端部漏抗。
In this paper, the distribution of evolvents for turbogenerator stator end winding is studied, analyzed and calculated by microcomputer, and accurate method for drawing of variable base circles and computer-designing, calculating and plotting of every template are presented. 本文对线圈端部渐伸线的走向进行了探讨,并用微机进行了分析计算,提出了变基圆渐伸线的精确画法和各种样板的计算机设计计算、绘图。
Numerical Computation of Electrodynamic Force Acting on the End Winding of a Superconducting Machine 超导电机端部绕组电动力的数值计算
3D Computation of Electromagnetic Force in the End Winding of Turbogenerator Part ⅱ. Calculation Example 汽轮发电机绕组端部电动力的三维计算(续)&(Ⅱ)实例计算
In this paper are presented purpose, method, principle and results of the optical fiber sensing technology used in measuring the vibration of stator end winding for large turbogenerator. 本文介绍了用于大型汽轮发电机定子绕组端部振动测量的光纤传感技术的目的、方法、原理和结果。
The cause of vibration on the turbogenerator stator end winding is analyzed, and the meaning of natural frequency test and vibration measurement is discussed. 本文分析了引起汽轮发电机定子绕组端部振动的原因,以及固有频率试验和振动测量的意义。
The Calculation and Measurement of End Winding Leakage Inductance of Multiphase Electric Machines 多相交流电机端部漏感系数的计算与测量
Calculation of Stator End Winding Leakage Inductance of Synchronous Generators with AC and DC Stator Connections 交直流混合供电发电机定子绕组端部漏电感的计算
After that end region model is established. Because the stator winding of Powerformer is multilayer concentric, its end winding is rather complex. 之后进行了对定子端部区域的建模,由于电力发生器采用多层同心式绕组,其端部结构较为复杂,这对模型的建立、剖分都带来了相当大的难度。
Finally, natural vibration, electro-magnetic force distribution and dynamic response of end winding are calculated by numerical method. 最后,对电磁力激发下的动力响应方程进行了解析求解,并通过数值计算,分别得到了端部绕组的固有振动频率、电磁力分布及动力响应8计算结果。
Two degree of freedom principal resonance of generator end winding is studied when the clamping plates are loose. 对压板松动时大型汽轮发电机定子端部单根绕组的两自由度主共振问题进行了研究。
In this paper, the modal of large turbogenerator stator end winding is studied using impulse technique. 本文用锤击法对某大型汽轮发电机定子端部绕组进行了模态研究。
Analysis of Inherent Frequency and Modal Testing about End Winding of Generator Stator 发电机定子绕组端部固有频率测试及模态试验分析研究
Electrodynamic Force Calculation and Vibration Analysis of the End Winding of Turbo-generators 发电机端部绕组电动力计算及振动分析
Fundamental Resonance and Bifurcation of Large Generator End Winding When Its Clamping Plates Are Loose 压板松动时大型发电机端部绕组的主共振与分岔
The model of anisotropy laminated composite material with tendon is used to analyze vibration of integrity structure of end winding of large turbo-generator stator. 采用正交各向异性叠层复合材料加筋圆锥壳模型,对大型汽轮发电机定子端部绕组整体结构的振动问题进行了研究。
Study on the End Winding Support for Stator of HV AC Motor 高压交流电机定子绕组端部固定结构研究
When the stator end winding occurs short-circuit fault, the stator currents will reach large values and cause overheating of the damp bars, thus endanger the safety of the generator. 发电机定子端部发生短路故障时,短路电流可能达到很大的数值,并引起阻尼条过热,危害发电机的安全。