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Fault-Tolerant Inverter for Power Flow Control in Variable-Speed Four-Wire Permanent-Magnet Generators.

Authors :
Catuogno, Guillermo R.
Garcia, Guillermo O.
Leidhold, Roberto
Source :
IEEE Transactions on Industrial Electronics; Nov2015, Vol. 62 Issue 11, p6727-6736, 10p
Publication Year :
2015

Abstract

A strategy for fault detection and tolerance on the inverter that controls power flow in variable-speed permanent-magnet generators is proposed in this paper. The performance of the proposed strategy is analyzed in two different four-wire topologies. In the first topology, the neutral point of the generator is connected to the middle point of the dc-link capacitor bank, whereas in the second topology, it is connected to a fourth leg of the inverter. The main contribution of this paper resides in the control scheme, which allows a steady operation through a fault occurrence without the need of reconfiguring neither the inverter topology nor the control algorithm. In this way, transients and the use of extra hardware components are avoided. In addition, a control loop that allows limiting the generator losses at any operation point is presented in order to protect the machine. Finally, experimental results, obtained from a laboratory prototype, validate the practical feasibility of the proposed strategy. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISSN :
02780046
Volume :
62
Issue :
11
Database :
Complementary Index
Journal :
IEEE Transactions on Industrial Electronics
Publication Type :
Academic Journal
Accession number :
110255886
Full Text :
https://doi.org/10.1109/TIE.2015.2438771