A study of armature winding internal faults and protection schemes for turbogenerators

Author

Xiangheng, Wang ; Songlin, Chen ; Weijian, Wang ; Yuguang, Sun ; Xu, Longya

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

1

fYear

2000

fDate

2000

Firstpage

402

Abstract

The internal fault of an armature winding is one of the most severe faults for turbogenerators. It is necessary to know the transient values of the machine when the internal faults occur so as to design suitable protection. Based on the multi-loop method, a mathematical model of the turbogenerator with an internal fault is developed. The air-gap permeance analysis method is used to calculate the parameters and the eddy current of the solid rotor. The method is verified by computer simulation and experimental results. The developed model provides a theoretic basis for predicting transients and developing protection schemes for turbogenerators with internal armature faults

Keywords

air gaps; eddy currents; electrical faults; fault diagnosis; machine protection; machine theory; rotors; turbogenerators; air-gap permeance analysis method; armature winding internal faults; computer simulation; eddy current parameters; internal armature faults; internal fault; internal faults; multi-loop method; protection schemes; solid rotor; transient values; transients prediction; turbogenerators; Circuit faults; Eddy currents; Electric machines; Iron; Magnetic cores; Mathematical model; Power generation; Protection; Solids; Turbogenerators;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2000. Conference Record of the 2000 IEEE

Conference_Location

Rome

ISSN

0197-2618

Print_ISBN

0-7803-6401-5

Type

conf

DOI

10.1109/IAS.2000.881142

Filename

881142