New method for experimental modal analysis of hydrogenerator's stator core using the excitation from the Poles

Allan de Barros; Alexandre DAgostini; Thierre Zulzke Penteado; Norio Kato; André Alves Cunha; Egidio José Faria; Carlos Haluska; Fernando Hiroyuki Hamaji; Silvio Ikuyo Nabeta; Ivan Eduardo Chabu

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New method for experimental modal analysis of hydrogenerator's stator core using the excitation from the Poles

机译：利用极点激励进行水轮发电机定子铁心实验模态分析的新方法

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摘要

The study of stator core vibrations generated by electromagnetic forces in electrical machines is of great practical and theoretical interest. An important part of the problem is the correct determination of mode shapes and eigen frequencies of the mechanical system. This work brings to discussion a new experimental modal analysis (EMA) method developed for synchronous machines in which the traditional instrumented hammer impulse is substituted by a magnetic pulse generated by currents applied in two poles. Experimental results obtained in a real 190 MVA hydrogenerator are shown.

机译：对电机中电磁力产生的定子铁心振动的研究具有重大的实践和理论意义。问题的重要部分是正确确定机械系统的振型和本征频率。这项工作讨论了为同步电机开发的一种新的实验模态分析（EMA）方法，该方法中，传统的仪器化锤击脉冲被两极电流所产生的磁脉冲所代替。显示了在实际的190 MVA加氢器中获得的实验结果。

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来源
《The Journal of Engineering》 |2019年第17期|4341-4344|共4页
作者
Allan de Barros; Alexandre DAgostini; Thierre Zulzke Penteado; Norio Kato; André Alves Cunha; Egidio José Faria; Carlos Haluska; Fernando Hiroyuki Hamaji; Silvio Ikuyo Nabeta; Ivan Eduardo Chabu;
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作者单位

Voith Hydro, Brazil;

Voith Hydro, Brazil;

Voith Hydro, Brazil;

Voith Hydro, Brazil;

Voith Digital Solutions, Brazil;

Voith Hydro, Brazil;

Voith Hydro, Brazil;

EDP, Brazil;

EPUSP, Brazil;

EPUSP, Brazil;

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原文格式 PDF
正文语种 eng
中图分类
关键词
stators; electromagnetic forces; modal analysis; vibrations; synchronous machines; hydroelectric generators;

机译：定子;电磁力;模态分析;振动;同步电机;水力发电机;

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1. Magnetic Property Evaluation of the High-Speed Motor Stator Core Under Sinusoidal and Pulse Width Modulation Wave Excitation Using the Stator Winding Excitation Method [J] . Mohachiro OKA, Masato ENOKIZONO 日本AEM学会誌 . 2019,第1期

机译：高速电机定子铁芯下的正弦磁学性能评价和脉宽调制波激励定子绕组励磁法
2. Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method [J] . Mohachiro Oka, Masato Enokizono Elektrotechnicky Casopis/Journal of Electrical Engineering . 2018,第6期

机译：激励内芯法估算框架感应压应力对定子铁芯磁性能的影响
3. Evaluation of frame-induced compressive stress on the magnetic properties of stator cores using the excitation inner core method [J] . Mohachiro Oka, Masato Enokizono Journal of Electrical Engineering . 2018,第6期

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4. Autonomous Modal Analysis - A method for Experimental Modal Analysis using self-generated excitation [C] . A. Colombo, E. Bianchi, M. Scaccabarozzi, International Conference on Noise and Vibration Engineering;International Conference on Uncertainty in Structural Dynamics . 2014

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5. Experimental modal analysis of star-spar buoy using eigensystem realization algorithm and stochastic subspace identification methods. [D] . Zhang, Pengyu. 2012

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7. New method for experimental modal analysis of hydrogenerator's stator core using the excitation from the Poles [O] . Allan Barros, Alexandre DAgostini, Thierre Zulzke Penteado, 2019

机译：使用杆子激励的氢化机定子芯的实验模态分析的新方法

New method for experimental modal analysis of hydrogenerator's stator core using the excitation from the Poles

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