电气传动2017，Vol.47Issue(9)：8-13,6.DOI:10.19457/j.1001-2095.20170902
一种改进的无刷直流电机直接转矩控制策略
Improved Control Strategy for the DTC System of BLDC Motors
摘要
Abstract
The changing rate of the electromagnetic torque when the motor is imposed on different null voltage vectors during commutation intervals and non-commutation intervals were analyzed. It was found that the electromagnetic torque will be decreased quickly during commutation intervals when the motor is imposed on zero voltage vectors ,if the null voltage vectors imposed on the motor are different during and before commutation intervals. So great torque ripples can be created when the system works under certain control cycles. A modified method that chose not one zero voltage vector but two different zero voltage vectors during one sector was proposed to suppress the torque ripples created periodically. The results of the simulation and experiments highlight the validation of the method proposed.关键词
无刷直流电机/直接转矩控制/转矩脉动/零电压矢量Key words
brushless DC motor/direct torque control/torque ripple/null voltage vectors分类
信息技术与安全科学引用本文复制引用
周运杰,潘峰,卢沁雄,闫庚龙,韩如成..一种改进的无刷直流电机直接转矩控制策略[J].电气传动,2017,47(9):8-13,6.基金项目
山西省自然科学基金项目(2010011024-3) （2010011024-3）
