TY - GEN
T1 - A Diagnostic Method for Inverter Faults in Aviation VSCF System Based on Voltage Vector Diagram and Crossing Phase Reconfiguration
AU - Huang, Zhanjun
AU - Dong, Xin
AU - Yao, Xianshuang
AU - Zhang, An
AU - Hu, Kang
AU - Chen, Xiaohua
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The inverter of variable speed constant frequency system is the indispensable equipment to maintain the normal operation of avionics system. However, the open-circuit fault diagnosis of aeronautical complex intermediate-frequency inverter is always a thorny problem. To solve this problem, this paper creatively proposes a fault diagnosis algorithm. First, the average model is utilized to analyze the voltage and determine the fault phase. Secondly, the voltage vector diagram is attracted according to the Concordia transformer. According to the different centroid positions and radius ratios of the voltage vector diagram, the number of fault IGBTs and fault IGBT candidate pairs can be determined. Then, a new virtual phase is constructed according to the proposed reconfiguration method. Meanwhile, the average model is used to analyze the virtual phase. Finally, combining the analysis result of voltage vector diagram and virtual phase, the fault IGBT can be determined. Compared with the existing methods, the proposed method not only solves the problem that the fault characteristics of the aviation inverter are not obvious due to the complex structure, but also realizes the open-circuit fault diagnosis of the composite intermediate-frequency inverter without adding additional sensors. At last, the proposed method is verified to be feasible.
AB - The inverter of variable speed constant frequency system is the indispensable equipment to maintain the normal operation of avionics system. However, the open-circuit fault diagnosis of aeronautical complex intermediate-frequency inverter is always a thorny problem. To solve this problem, this paper creatively proposes a fault diagnosis algorithm. First, the average model is utilized to analyze the voltage and determine the fault phase. Secondly, the voltage vector diagram is attracted according to the Concordia transformer. According to the different centroid positions and radius ratios of the voltage vector diagram, the number of fault IGBTs and fault IGBT candidate pairs can be determined. Then, a new virtual phase is constructed according to the proposed reconfiguration method. Meanwhile, the average model is used to analyze the virtual phase. Finally, combining the analysis result of voltage vector diagram and virtual phase, the fault IGBT can be determined. Compared with the existing methods, the proposed method not only solves the problem that the fault characteristics of the aviation inverter are not obvious due to the complex structure, but also realizes the open-circuit fault diagnosis of the composite intermediate-frequency inverter without adding additional sensors. At last, the proposed method is verified to be feasible.
KW - Aviation inverter
KW - circuit reconfiguration
KW - open-circuit fault diagnosis
KW - voltage vector diagram
UR - http://www.scopus.com/inward/record.url?scp=85192377018&partnerID=8YFLogxK
U2 - 10.1109/IAECST60924.2023.10502908
DO - 10.1109/IAECST60924.2023.10502908
M3 - 会议稿件
AN - SCOPUS:85192377018
T3 - 2023 5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023
SP - 1051
EP - 1056
BT - 2023 5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023
Y2 - 8 December 2023 through 10 December 2023
ER -