A Diagnostic Method for Inverter Faults in Aviation VSCF System Based on Voltage Vector Diagram and Crossing Phase Reconfiguration

Zhanjun Huang, Xin Dong, Xianshuang Yao, An Zhang, Kang Hu, Xiaohua Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publication2023 5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1051-1056
Number of pages6
ISBN (Electronic)9798350357738
DOIs
StatePublished - 2023
Event5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023 - Hybrid, Guangzhou, China
Duration: 8 Dec 202310 Dec 2023

Publication series

Name2023 5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023

Conference

Conference5th International Academic Exchange Conference on Science and Technology Innovation, IAECST 2023
Country/TerritoryChina
CityHybrid, Guangzhou
Period8/12/2310/12/23

Keywords

  • Aviation inverter
  • circuit reconfiguration
  • open-circuit fault diagnosis
  • voltage vector diagram

Fingerprint

Dive into the research topics of 'A Diagnostic Method for Inverter Faults in Aviation VSCF System Based on Voltage Vector Diagram and Crossing Phase Reconfiguration'. Together they form a unique fingerprint.

Cite this