Reliability study on non-contact traction power supplysystem based on fuzzy grey relational FTA

• Autorzy: Pei Yanxia , Li Xin

Identyfikatory

DOI

10.24425/aee.2021.136982

• Języki publikacji: EN

Abstrakty

EN

The traction power supply system based on Inductively Coupled Power Transfer (ICPT) technology is one of the new traction power supply technologies that will bedeveloped in the future. As the core part of rail transit energy transfer and conversion, thetraction power supply system is not only the critical system for the safe operation of railtransit, but also the main source of its failures, so it is of great significance to study itsreliability. In this paper, the reliability analysis of the non-contact traction power supplysystem based on mobile ICPT technology is carried out using the method of (Fault Tree Analysis) FTA combined with triangular fuzzy theory and grey relational theory. Firstly,the fault tree of the system is established, and the minimum cut sets and structure functionof the fault tree are obtained. Then the triangular fuzzy numbers are introduced to representthe probability of the bottom events, and the fuzzy probability of the top event and the fuzzyimportance of the bottom events are determined, after that, the maximum probability offailure of the top event is obtained. Finally, the grey relational degrees of each minimum cutset are obtained and ranked. Furthermore, in order to prove the correctness of this method,the trapezoidal fuzzy FTA is introduced and compared with it. Both research results showthat the loosely coupled transformer and Insulated Gate Bipolar Transistor (IGBT) moduleare the weak links of the system. The results obtained are consistent and realistic, whichproves the correctness of the method selected in this article.

Słowa kluczowe

EN

FTA; grey relational degree; ICPT technology; reliability research; trapezoidal fuzzy number; triangular fuzzy number

PL

FTA; szary stopień relacyjny; technologia ICPT; badania wiarygodności; trapezoidalna liczba rozmyta; trójkątna liczba rozmyta

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2021
• Tom: Vol. 70, nr 2
• Strony: 253--270
• Opis fizyczny: Bibliogr. 29 poz., rys., wz., tab.

Twórcy

autor

Pei Yanxia

• Key Laboratory of Opto-Technology and Intelligent Control Ministry of Education, Lanzhou Jiaotong University, China

• https://orcid.org/0000-0002-2705-2164

autor

Li Xin

• School of New Energy and Power Engineering, Lanzhou Jiaotong University, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).