Multitimescale reliability evaluation of DC-link capacitor banks in metro traction drive system

Affiliation of Author(s):Southwest Jiaotong University

Teaching and Research Group:Ministry of Education Key Laboratory of Magnetic S

Journal:IEEE Transactions on Transportation Electrification

Funded by:High-Speed Railway Joint Funds of the NNSFC under Grant U1934204

Key Words:DC-link capacitor , metro traction drive system; multitimescale; reliability; Weibull distributio

Abstract:The reliability of DC-link capacitors in urban rail transit is considered as a major challenge because of significant maintenance impact. In this article, the DC-link capacitor reliability is researched in metro traction drive system. In the small timescale of control level, the current harmonics of multiple operating conditions and different control methods in the DC-link capacitor are discussed. The power loss is simulated by the capacitor harmonics of current and equivalent series resistance (ESR) in multioperating conditions. Considering electrothermal coupling, the time-ordered and contin

Indexed by:Journal articles

Document Code:19473228

Discipline:Engineering

First-Level Discipline:In Electrical Engineering

Document Type:J

Volume:6

Issue:1

Page Number:213-227

ISSN No.:23327782

Translation or Not:no

Date of Publication:2020-02-14

Included Journals:SCI

Links to published journals:https://ieeexplore.ieee.org/document/8999733/