Open-Switch Fault Detection Method of a Back-to-Back Converter Using NPC Topology for Wind Turbine Systems

June-Seok Lee, Kyo_Beum Lee, Frede Blaabjerg

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

145 Citationer (Scopus)

Abstract

In wind turbine generation (WTG) systems, a back-to-back converter with a neutral-point-clamped (NPC) topology is widely used because this topology has more advantages than a conventional two-level topology, particularly when operating at high power. There are 12 switches in the NPC topology. An open-switch fault in the NPC rectifier of the back-to-back converter leads to the distortion of the input current and torque vibration in the system. Additionally, an open-switch fault in the NPC inverter of the back-to-back converter causes the distortion of the output current. Furthermore, the WTG system can break down in the worst case scenario. To improve the reliability of WTG systems, an open-switch fault detection method for back-to-back converters using the NPC topology is required. This study analyzes effects of inner and outer open-switch faults of the NPC rectifier and inverter and describes a novel open-switch fault detection method for all possible open-switch faults in the back-to-back converter.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Industry Applications
Vol/bind51
Udgave nummer1
Sider (fra-til)325 - 335
Antal sider11
ISSN0093-9994
DOI
StatusUdgivet - mar. 2015

Fingeraftryk

Dyk ned i forskningsemnerne om 'Open-Switch Fault Detection Method of a Back-to-Back Converter Using NPC Topology for Wind Turbine Systems'. Sammen danner de et unikt fingeraftryk.

Citationsformater