Transient calculation of internal faults in the salient-pole synchronous machine and research on their main equipment protection schemes

Author

Xiangheng, Wang ; Bei, Ouyang ; Yuguang, Sun ; Weijian, Wang

Author_Institution

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

fYear

2001

fDate

37012

Firstpage

133

Lastpage

139

Abstract

Based on the multi-loop method, a mathematical model for the salient-pole synchronous machine is established. The transient and steady-state behavior of the machine with internal faults is simulated through the model, and it is conformable with the experiment result. According to the simulation results, the sensitivities of different protection schemes are calculated under some typical kinds of internal faults. It is found that the transient sensitivity is higher than the corresponding steady-state sensitivity under the same condition

Keywords

machine protection; machine theory; synchronous machines; transient analysis; 12 kW; completed longitudinal differential protection; internal faults; mathematical model; multi-loop method; noncompleted longitudinal differential protection; protection sensitivity; salient-pole synchronous machine; single element transverse differential protection; split transverse differential protection; stator windings; steady-state behavior; steady-state sensitivity; transient behavior; transient calculation; transient sensitivity; Circuit faults; Couplings; Electric machines; Equations; Mathematical model; Protection; Stators; Steady-state; Synchronous machines; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Commercial Power Systems Technical Conference, 2001. Conference Record. Papers Presented at the 2001 Annual Meeting. 2001 IEEE

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-7055-4

Type

conf

DOI

10.1109/ICPS.2001.966523

Filename

966523