Performance enhancement of single-phase switched-reluctance motorby DC link voltage boosting
Chan, S.
Bolton, H.R.
Sch. of Electr., Electron. & Syst. Eng., Univ. of Wales Coll. of Cardiff;
This paper appears in: Electric Power Applications, IEE Proceedings B
Publication Date: Sep 1993
Volume: 140,
Issue: 5
On page(s): 316-322
ISSN: 0143-7038
References Cited: 24
CODEN: IPPADZ
INSPEC Accession Number: 4500771
Current Version Published: 2002-08-06
Abstract
A novel and simple DC link voltage boosting circuit is proposed to
enhance the performance of inverters for single-phase
switched-reluctance motors. It consists of only two additional
components to the single-phase switched-reluctance motor inverter,
namely a capacitor and a diode. Except for some increase in the voltage
rating of the inverter components, no change to the inverter hardware is
needed. The boost circuit provides many operational advantages. It
generates a high boost voltage during the current pull-up and pull-down
periods and hence decreases the current rise and fall times. The boost
feature thus reduces the magnitude of the negative torque pulses,
increases the mean motor output power and improves the efficiency of
energy recovery. The paper presents the basic operating principle of the
boost circuit, a method for the sizing of the boost capacitor and the
results of time stepping simulations of a boosted single-phase
switched-reluctance drive. The simulated and measured results presented
correlate well
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