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FPGA-based fault tolerant scheme with reduced extra-sensor number for WECS with DFIG

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4 Author(s)
Shahbazi, M. ; Groupe de Rech. en Electrotech. et Electron. de Nancy, Univ. de Nancy, Nancy, France ; Gaillard, A. ; Poure, P. ; Zolghadri, M.R.

Fast fault detection and converter reconfiguration is necessary for fault tolerant doubly fed induction generator (DFIG) in wind energy conversion systems (WECS) to prevent further damage and to make possible the continuity of service. Extra sensors are needed in order to detect the faults rapidly. In this paper, a very fast FPGA-based fault detection scheme is presented that minimizes the number of additional voltage sensors. A fault tolerant converter topology for this application is studied. Control and fault detection system are implemented on a single FPGA and Hardware in the Loop experiments are performed to evaluate the proposed detection scheme, the digital controller and the fault tolerant structure.

Published in:

Industrial Electronics (ISIE), 2011 IEEE International Symposium on

Date of Conference:

27-30 June 2011