@inproceedings{3705400ecbb8401c8852d59ee7006e67,
title = "Fault detection and protection of three-level neutral-point-clamped PWM voltage source converters",
abstract = "This paper presents the detection and protection methods uniquely associated with three-level NPC voltage source converters. The line-to-ground fault can cause significant dc-link neutral voltage and therefore can be effectively detected and located through monitoring the voltage without extra hardware. The inner device short in the three-level phase-leg can lead to dclink voltage unbalance and doubling the stress on capacitors and devices, which must be suppressed for the safe operation of the converter. Two overvoltage limiting methods are proposed to limit the overvoltage. The design of both the ground fault detection and overvoltage limiting has been covered in the paper. The schemes are verified through simulation and experiments.",
keywords = "Failure modes, Fault detection, Protection, Three-level neutral-point-clapmed converter",
author = "Fred Wang and Rixin Lai and Xibo Yuan and Fang Luo and Rolando Burgos and Dushan Boroyevich",
year = "2008",
doi = "10.1109/08IAS.2008.281",
language = "English",
isbn = "9781424422791",
series = "Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)",
booktitle = "2008 IEEE Industry Applications Society Annual Meeting, IAS'08",
note = "2008 IEEE Industry Applications Society Annual Meeting, IAS'08 ; Conference date: 05-10-2008 Through 09-10-2008",
}