EFFECT OF STATIC ECCENTRICITY AND STATOR INTER-TURN SHORT CIRCUIT COMPOSITE FAULT ON ROTOR VIBRATION CHARACTERISTICS OF GENERATOR

被引：19

作者：

He, Yu-Ling ^{[1
]}

Ke, Meng-Qiang ^{[1
]}

Wang, Fa-Lin ^{[1
]}

Tang, Gui-Ji ^{[1
]}

Wan, Shu-Ting ^{[1
]}

机构：

[1] North China Elect Power Univ, Dept Mech Engn, Baoding, Peoples R China

来源：

TRANSACTIONS OF THE CANADIAN SOCIETY FOR MECHANICAL ENGINEERING | 2015年 / 39卷 / 04期

基金：

中国国家自然科学基金;

关键词：

turbo-generator; static air-gap eccentricity; stator inter-turn short circuit; composite fault; rotor vibration; UNBALANCED MAGNETIC PULL; BEHAVIOR;

D O I：

10.1139/tcsme-2015-0061

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper investigates the radial rotor vibration characteristics under static air-gap eccentricity and stator inter-turn short circuit composite faults. The air-gap magnetic flux density is firstly deduced to obtain the unbalanced magnetic pull (UMP) on rotor. Then the rotor vibration characters, as well as the developing trend between the faulty parameters and the vibration amplitudes, are analyzed. Finally, the experiments are taken on a SDF-9 type simulating generator. It is shown that the radial deformation possibility, the 2nd, 4th, and 6th harmonic vibrations will be caused by the composite faults. Besides, the development of the inter-turn short circuit, the increment of the static eccentricity, and the rise of the exciting current will all get the deformation trend and the vibration amplitudes increased.

引用

页码：767 / 781

页数：15