NDLI: Fault tolerant power converter for switched reluctance drives

Content Provider	IEEE Xplore Digital Library
Author	Gameiro, N.S. Marques Cardoso, A.J.
Copyright Year	2008
Description	Author affiliation: High Sch. of Technol. & Manage., Polytech. Inst. of Leiria, Leiria (Gameiro, N.S.) \|\| Dept. of Electr. & Comput. Eng., Univ. of Coimbra, Coimbra (Marques Cardoso, A.J.)
Abstract	One of the main features of a switched reluctance motor is its fault tolerance capability. However performance deterioration is clearly evident when one phase is removed. This paper presents a fault tolerant power converter, applied to a four phases switched reluctance motor. Some possible additional connections on the commonly used asymmetric bridge converter are introduced to secure the operation of all phases even after a fault occurrence responsible for a power converter switch disconnection. Simulated results indicate that normal operation can nearly be restored at low speed operation and SRM performance behavior is clearly improved at high speed operation. Dynamic operating conditions, under normal and faulty operations with and without the use of the fault tolerant power converter, are analyzed. A high speed operating example, for all the referred operating modes and considering the same speed and load conditions, is presented. Time-domain waveforms of the phase currents, power converter supply current, electromagnetic torque and mechanical speed are presented as well as the spectral analysis of the power converter supply current and electromagnetic torque.
Starting Page	1
Ending Page	6
File Size	308882
Page Count	6
File Format	PDF
ISBN	9781424417353
DOI	10.1109/ICELMACH.2008.4800210
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-06
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Fault tolerance Switching converters Power supplies Electromagnetic scattering Torque converters Switches Current supplies Reluctance machines Reluctance motors
Content Type	Text
Resource Type	Article

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