Research on the internal faults of the salient-pole synchronous machine

2002 ◽  
Author(s):  
Ouyang Bei ◽  
Wang Xiangheng ◽  
Sun Yuguang ◽  
Wang Weijian ◽  
Wang Weihong
Keyword(s):  
Synchronous Machine ◽  
Salient Pole ◽  
Salient Pole Synchronous Machine ◽  
Internal Faults

scholarly journals Synchronous machine parameter identification in frequency and time domain

2007 ◽  
Vol 4 (1) ◽  
pp. 51-69 ◽  
Author(s):  
M. Hasni ◽  
S. Djema ◽  
O. Touhami ◽  
R. Ibtiouen ◽  
M. Fadel ◽  
...  
Keyword(s):  
Time Domain ◽  
Synchronous Machine ◽  
Model Structure ◽  
Machine Parameter ◽  
Identification Procedure ◽  
Time Constants ◽  
Domain Identification ◽  
Salient Pole ◽  
Salient Pole Synchronous Machine ◽  
Input Signals

This paper presents the results of a frequency and time-domain identification procedure to estimate the linear parameters of a salient-pole synchronous machine at standstill. The objective of this study is to use several input signals to identify the model structure and parameters of a salient-pole synchronous machine from standstill test data. The procedure consists to define, to conduct the standstill tests and also to identify the model structure. The signals used for identification are the different excitation voltages at standstill and the flowing current in different windings. We estimate the parameters of operational impedances, or in other words the reactance and the time constants. The tests were carried out on synchronous machine of 1.5 kVA 380V 1500 rpm.

The True Nature of Three-Phase Salient-Pole Synchronous Machine Transient Currents

1981 ◽  
Vol 18 (2) ◽  
pp. 155-158
Author(s):  
N. N. Hancock
Keyword(s):  
Angular Velocity ◽  
Synchronous Machine ◽  
Transient Currents ◽  
True Nature ◽  
Usual Assumption ◽  
Double Frequency ◽  
Salient Pole ◽  
Salient Pole Synchronous Machine ◽  
Three Phase

It is shown that the two components of the transient armature currents of a salient-pole synchronous machine usually described as undirectional and of double frequency are both alternating and that the sum of their frequencies is twice the angular velocity. The usual assumption is, however, well justified at rated speed.

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