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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.
Originalsprog | Engelsk |
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Tidsskrift | I E E E Transactions on Industry Applications |
Vol/bind | 51 |
Udgave nummer | 1 |
Sider (fra-til) | 325 - 335 |
Antal sider | 11 |
ISSN | 0093-9994 |
DOI | |
Status | Udgivet - 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.Projekter
- 1 Afsluttet
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Projekter: Projekt › Forskning