1 Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University, VBN2 Electric Power Systems, The Faculty of Engineering and Science, Aalborg University, VBN3 The Faculty of Engineering and Science (ENG), Aalborg University, VBN4 Nanjing University of Aeronautics and Astronautics5 Nanjing University of Aeronautics and Astronautics
The fault-tolerance design is widely adopted for high-reliability applications. In this paper, a parallel structure of single-phase full-bridge rectifiers (FBRs) (PS-SPFBR) is proposed for a wound-field doubly salient generator. The analysis shows the potential fault-tolerance capability of the PS-SPFBR over the common three-phase FBR. The normal no-load and loading operations are discussed, and the fault-tolerance ability is analyzed. A doubly salient generator prototype is built and tested; the machine is also modeled and simulated with the finite element method. The results obtained from simulation are in good agreement with that from the experiments under both normal no-load and loading operations. The impacts of a single-phase open-circuit fault have been discussed, and the fault-tolerance ability has been demonstrated.
I E E E Transactions on Industrial Electronics, 2013, Vol 60, Issue 8, p. 2988-2996