A study on operation under faults with the single-phase SR generator

Author

Sawata, Tadashi ; Kjaer, Philip C. ; Cossar, Calum ; Miller, T.J.E.

Author_Institution

Dept. of Electron. & Electr. Eng., Glasgow Univ., UK

Volume

35

Issue

4

fYear

1999

Firstpage

782

Lastpage

789

Abstract

This paper studies operation of the multipole single-phase switched reluctance generator (SRG) under faults, in particular an 8/8-pole switched reluctance machine. A new converter topology which connects coils two banks in parallel is proposed. The combination of multiple coils per phase and the converter circuit suggests improved operation under faults compared with conventional topologies. Output power per coil current under faults is studied by finite-element analysis and static torque measurement. Circuit equations under faults are derived and operation under faults is evaluated by simulation. An SRG controller is constructed and experiments are performed. The experimental results support the equations and simulation results. It is concluded that the SRG can continue generating operation, even when open- or short-circuited coil faults occur, with the proposed converter and proper fault detection circuits

Keywords

coils; electrical faults; fault tolerance; finite element analysis; machine testing; machine theory; machine windings; reluctance generators; torque measurement; coil banks; fault detection circuits; finite-element analysis; multipole single-phase switched reluctance generator; open-circuit coil faults; parallel connection; power converter topology; short-circuit coil faults; static torque measurement; under fault operation; Circuit faults; Circuit simulation; Circuit topology; Coils; Equations; Finite element methods; Power generation; Reluctance generators; Reluctance machines; Strontium;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.777185

Filename

777185