ANALYSIS AND SIMULATION ON THE EFFECT OF ROTOR INTERTURN SHORT CIRCUIT ON MAGNETIC FLUX DENSITY OF TURBO-GENERATOR

被引：12

作者：

He, Yu-Ling ^{[1
]}

Ke, Meng-Qiang ^{[1
]}

Tang, Gui-Ji ^{[1
]}

Jiang, Hong-Chun ^{[1
]}

Yuan, Xing-Hua ^{[1
]}

机构：

[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Baoding, Hebei, Peoples R China

来源：

JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2016年 / 67卷 / 05期

基金：

中国国家自然科学基金;

关键词：

turbo-generator; rotor inter-turn short circuit; faulty degree; short circuit position; MFD; TURN SHORT-CIRCUITS;

D O I：

10.1515/jee-2016-0047

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The intent of this paper is to investigate the effect of the interturn short circuit fault (ISCF) in rotor on the magnetic flux density (MFD) of turbo-generator. Different from other studies, this work not only pays attention to the influence of the faulty degrees on the general magnetic field, but also investigates the effect of the short circuit positions on the harmonic components of MFD. The theoretical analysis and the digital simulation through the FEM software Ansoft are performed for a QSFN-600-2YHG turbo-generator. Several significant formulas and conclusions drawn from the analysis and the simulation results are obtained to indicate the relation between the harmonic amplitude of the MFD and the faulty degree (via n(m), the number of the short circuit turns), and the relation between the MFD harmonic amplitude and the faulty position (via alpha(r), the angle of the two slots in which the interturn short circuit occurs). Also, the developing tendency of the general magnetic field intensity, the distribution of the magnetic flux lines, and the peak-to-peak value of MFD are presented.

引用

页码：323 / 333

页数：11

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