Title :
Fault-tolerant operation of single-phase switched reluctance generators
Author :
Sawata, Tadashi ; Kjaer, Philip ; Cossar, Calum ; Miller, T.J.E. ; Hayashi, Yoichi
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
This paper studies fault-tolerant operation of switched reluctance generators (SRG), in particular an 8/8-pole single-phase switched reluctance machine. The combination of multiple coils per phase and innovative power electronic converter circuits suggests improved operation under faults compared with conventional topologies. Open and short-circuit coils are studied through linear analysis, finite-element analysis and measurements. A new power converter topology which connects coils two in parallel is proposed. Generated current is measured by simulating the proposed power converter under fault conditions. It is concluded that the 8/8-pole single-phase switched reluctance machine can generate half its normal power with the same coil current under loss of half coils with a proper winding configuration and the power converter proposed
Keywords :
electrical faults; finite element analysis; machine testing; machine theory; machine windings; power convertors; reluctance generators; transient analysis; 8/8-pole single-phase switched reluctance machine; fault-tolerant operation; finite-element analysis; linear analysis; measurements; open-circuit coils; power electronic converter circuits; short-circuit coils; single-phase switched reluctance generators; winding configuration; Circuit faults; Circuit topology; Coils; Current measurement; Fault tolerance; Finite element methods; Power electronics; Power generation; Reluctance generators; Reluctance machines;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1997. APEC '97 Conference Proceedings 1997., Twelfth Annual
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3704-2
DOI :
10.1109/APEC.1997.581514
