Analysis on exciting winding electromagnetic force of Turbo-generator under rotor interturn short circuit fault

DOI

10.2991/aest-16.2016.67How to use a DOI?

Keywords

turbo-generator; rotor interturn short circuit; rotor exciting winding; electromagnetic force; Ansoft.

Abstract

This paper used theoretical analysis and numerical calculation to analyze winding electromagnetic force (EF). QFSN-600-2YHG type turbo-generator is the research object. This paper investigated EF on exciting windings of turbo-generator before and after rotor interturn short circuit (RISC) fault. The impact of RISC on the air-gap magnetic flux density (MFD) was firstly studied. The EF formulas were deduced based on the air-gap MFD. Then the detailed EF values were obtained by numerical calculation. The winding EFs are of centrosymmetry under normal condition. RISC mainly affects the EF of the very coil where the short circuit takes place. As RISC develops, the EF will decrease. This study is probable to be beneficial to insulation monitoring.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Hao Zhong
AU  - Yuling He
AU  - Guiji Tang
AU  - Yuchao Meng
AU  - Weiqi Deng
PY  - 2016/11
DA  - 2016/11
TI  - Analysis on exciting winding electromagnetic force of Turbo-generator under rotor interturn short circuit fault
BT  - Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SP  - 497
EP  - 504
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.67
DO  - 10.2991/aest-16.2016.67
ID  - Zhong2016/11
ER  -