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http://dx.doi.org/10.6113/JPE.2014.14.6.1157

Tolerance Control for the Inner Open-Switch Faults of a T-Type Three-Level Rectifier  

Lee, June-Seok (Department of Electrical and Computer Engineering, Ajou University)
Lee, Kyo-Beum (Department of Electrical and Computer Engineering, Ajou University)
Publication Information
Journal of Power Electronics / v.14, no.6, 2014 , pp. 1157-1165 More about this Journal
Abstract
The T-type topology is a three-level topology that has an advantage in terms of its number of switching device and its efficiency when compared to the neutral-point clamped (NPC)-type topology. With the recent increase in the usage of the T-type topology, the interest in its reliability has also increased. Therefore, a tolerance control for a T-type rectifier is necessary to improve the reliability of applications when an open-switch fault occurs. NPC-type rectifiers cannot eliminate input current distortion completely. However, the T-type rectifier is able to restore distorted current. In this paper, a tolerance control for the $S_{x2}$ and $S_{x3}$ open-switch faults of a T-type rectifier is proposed where it is advantageous in terms of efficiency when compared with other tolerance controls. The performance of the proposed tolerance control is verified through simulation and experimental results.
Keywords
Open-switch fault; Reliability; T-type rectifier; T-type topology; Tolerance control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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