TY - JOUR
T1 - Online Fault Diagnosis for Excitation System With DC Excitation in Brushless Wound-Rotor Synchronous Starter-Generator
AU - Jiao, Ningfei
AU - Wang, Ke
AU - Wang, Jinlu
AU - Sun, Chenghao
AU - Song, Shoujun
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2026
Y1 - 2026
N2 - The excitation system (ES) of the brushless wound-rotor synchronous starter-generator (BWRSSG) plays a critical role in supplying field current for the main machine (MM), so effective online fault diagnosis for ES is necessary. In this article, the waveform characteristics of the stator current of the main exciter (ME) under different faults in the ES are analyzed. And based on the average-value, periodicity, and fluctuation rate of the stator current, an online diagnosis method for the electrical fault of the ES with dc excitation in the BWRSSG is proposed. The proposed method enables online diagnosis of the fault occurrence, fault localization, and fault type of the ES, including the ME stator/rotor windings, the rotating rectifier, and the MM field winding. Experimental results verified the feasibility and effectiveness of the proposed method.
AB - The excitation system (ES) of the brushless wound-rotor synchronous starter-generator (BWRSSG) plays a critical role in supplying field current for the main machine (MM), so effective online fault diagnosis for ES is necessary. In this article, the waveform characteristics of the stator current of the main exciter (ME) under different faults in the ES are analyzed. And based on the average-value, periodicity, and fluctuation rate of the stator current, an online diagnosis method for the electrical fault of the ES with dc excitation in the BWRSSG is proposed. The proposed method enables online diagnosis of the fault occurrence, fault localization, and fault type of the ES, including the ME stator/rotor windings, the rotating rectifier, and the MM field winding. Experimental results verified the feasibility and effectiveness of the proposed method.
KW - Aircraft power system
KW - excitation system (ES)
KW - fault diagnosis
KW - integrated starter-generator (ISG)
UR - https://www.scopus.com/pages/publications/105019937689
U2 - 10.1109/TPEL.2025.3624760
DO - 10.1109/TPEL.2025.3624760
M3 - 文章
AN - SCOPUS:105019937689
SN - 0885-8993
VL - 41
SP - 5038
EP - 5052
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 4
ER -