Model Predictive Torque Control for a Dual Three-phase PMSM Using Modified Dual Virtual Vector Modulation Method  

作　　者：Zhujin Ren Jinghua Ji Hongyu Tang Tao Tao Linsen Huang Wenxiang Zhao 

机构地区：[1]School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China [2]School of Electrical and Information,Zhenjiang College,Zhenjiang 212028,China

出　　处：《Chinese Journal of Electrical Engineering》2022年第4期91-103,共13页中国电气工程学报（英文）

基　　金：Supported by the National Natural Science Foundation of China under Grant 51977099;the Natural Science Foundation of Jiangsu Province under Grant BK20191225;the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘　　要：Single voltage vectors applied in the conventional model predictive torque control(MPTC)for multiphase motors do not only suffer from serious torque and stator flux ripples but also cause the large harmonic current.To address the aforementioned challenges,an MPTC using a modified dual virtual vector modulation method is proposed to improve the operational performance of a dual three-phase permanent magnet synchronous motor.Virtual voltage vectors are synthesized as the candidate control set to restrain the harmonic current.A transformation method is introduced to consider both the stator flux and torque in the duty cycle modulation.The torque and stator flux ripples are simultaneously reduced by addressing the limitations of nonuniform units.Furthermore,the null voltage vector is then inserted to expand the modulation range and improve the steady-state performance.Moreover,the sawtooth carrier is adopted to address the challenge of the asymmetric switch sequence caused by the modified modulation.Finally,the experimental results are presented to verify the effectiveness and superiority of the proposed MPTC method.

关 键 词：Model predictive torque control dual three-phase motor permanent magnet synchronous motor dual virtual vector modulation 

分 类 号：O17[理学—数学]