Minimising torque ripple of SRM by applying DB-DTFC

被引：14
作者：
Zhang, Wen [1 ]
Xu, Ai'de [1 ]
Han, Lele [1 ]
Wang, Shenghao [2 ]
机构：
[1] Dalian Maritime Univ, Inst Informat Sci & Technol, Dalian 116026, Peoples R China
[2] Dalian Maritime Univ, Inst Marine Elect Engn, Dalian 116026, Peoples R China
来源：
IET ELECTRIC POWER APPLICATIONS | 2019年 / 13卷 / 11期
基金：
中国国家自然科学基金;
关键词：
reluctance motors; torque; torque control; machine control; stators; magnetic flux; reluctance motor drives; DB-DTFC; SRM drive system; stator flux; constant switching frequency; 15 kW three-phase 12; 8-pole SRM test bench; minimising torque ripple; traditional direct torque control; switched reluctance motors; deadbeat-direct torque; SWITCHED RELUCTANCE MOTOR; DEADBEAT-DIRECT TORQUE; FLUX CONTROL; SYNCHRONOUS MACHINES;
D O I：
10.1049/iet-epa.2018.5441
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Since the traditional direct torque control (DTC) of switched reluctance motors (SRMs) has the shortcomings of large torque ripple and non-constant switching frequency, this study proposes the deadbeat-direct torque and flux-linkage control (DB-DTFC) method for SRM. By analysing the basic principles of SRM, a discrete-time model is established to predict the future states of the SRM drive system. With DB-DTFC, the stator flux and torque can be manipulated during each pulse-width modulation cycle to minimise torque ripple during operation. As a result, the proposed DB-DTFC can minimise the torque ripple as well as apply space-vector modulation with a constant switching frequency. Finally, to verify its effectiveness, DB-DTFC was applied to the 15 kW three-phase 12/8-pole SRM test bench in real time and the results are compared with conventional DTC.
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页码：1883 / 1890
页数：8
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