A novel power converter with voltage-boosting capacitors for afour-phase SRM drive
Dessouky, Y.G.
Williams, B.W.
Fletcher, J.E.
Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct 1998
Volume: 45,
Issue: 5
On page(s): 815-823
ISSN: 0278-0046
References Cited: 10
CODEN: ITIED6
INSPEC Accession Number: 6041979
Digital Object Identifier: 10.1109/41.720339
Current Version Published: 2002-08-06
Abstract
This paper presents a method of enhancing the performance of a
four-phase switched reluctance motor by using capacitors to produce
additional supply voltage during the rise and fall periods of motor
phase current. The voltage rating of the inverter components increases
and extra capacitor/diode combinations are needed. The operation and
analysis of a series voltage boost circuit are detailed for different
modes of operation with a study of the effect of the boost capacitor
voltage on the current waveform. Different voltage boost circuit
configurations are compared. The predicted and measured results show
that the boost circuit increases both torque and output power and
improves the efficiency of the machine, especially at high speeds
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