Investigation on the shaft voltage generation of large synchronous turboalternators

被引：0

作者：

Darques, Kevin ^{[1
]}

Tounzi, Abdelmounaim ^{[1
]}

Le-menach, Yvonnick ^{[1
]}

Beddek, Karim ^{[2
]}

机构：

[1] Univ Lille, Arts & Metiers ParisTech, Cent Lille, Lab Electrotech & Elect Puissance, Villeneuve Dascq, France

[2] EDF Lab R&D, Palaiseau, France

来源：

COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING | 2020年 / 39卷 / 05期

关键词：

Electrical machine; Electromagnetic fields; Finite element analysis; Fault diagnosis; Finite element model; Shaft voltage; Synchronous generator;

D O I：

10.1108/COMPEL-01-2020-0044

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Purpose This paper aims to go deeper on the analysis of the shaft voltage of large turbogenerators. The main interest of this study is the investigation process developed. Design/methodology/approach The analysis of the shaft voltage because of several defects is based on a two-dimensional (2D) finite element modeling. This 2D finite element model is used to determine the shaft voltage because of eccentricities or rotor short-circuit. Findings Dynamic eccentricities and rotor short circuit do not have an inherent impact on the shaft voltage. Circulating currents in the stator winding because of defects impact the shaft voltage. Originality/value The original value of this paper is the investigation process developed. This study proposes to quantify the impact of a smooth stator and then to explore the contribution of the real stator winding on the shaft voltage.

引用

页码：1145 / 1156

页数：12

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