RT Journal Article
A1 Xu Ai-de
A1 Zhao Xianchao
A1 He Kunlun
A1 Cao Yuzhao

PB iet
T1 Torque-ripple reduction of SRM using optimised voltage vector in DTC
JN IET Electrical Systems in Transportation
VO 8
IS 1
SP 35
OP 43
AB High torque ripple is inherent in switched reluctance motors (SRMs) because of the motor's doubly salient structure and highly non-uniform torque and magnetisation characteristics. Direct torque control (DTC) for SRM is one of the torque ripple reduction strategies which gets wide attention for its simpleness and effectiveness. In this study, aiming at the torque ripple phenomenon of DTC for SRM, a novel method for torque-ripple reduction is proposed. With the new methods, sector zones were redivided into 9 and 12 sector zones based on six sector zones and new control rules were adopted. Consequently, the proposed methods make the selection of voltage vector more precise. A 12/8-pole three-phase SRM drive system was designed to verify the effectiveness of the proposed new methods. The results verified that the improved DTC algorithms with 9 and 12 sector zones could indeed minimise the torque ripple to a great extent.
K1 control rules
K1 DTC algorithms
K1 magnetisation characteristics
K1 motor doubly salient structure
K1 direct torque control
K1 voltage vector selection
K1 nonuniform torque
K1 optimised voltage vector
K1 switched reluctance motors
K1 12/8-pole three-phase SRM drive system
K1 torque ripple reduction strategies
K1 sector zones
DO https://doi.org/10.1049/iet-est.2017.0090
UL https://digital-library.theiet.org/;jsessionid=ddqnafoj310oi.x-iet-live-01content/journals/10.1049/iet-est.2017.0090
LA English
SN 2042-9738
YR 2018
OL EN