开绕组BLDCM直接转矩控制电压矢量特性研究  

Research on Voltage Vector Characteristics of Open Winding BLDCM Direct Torque Control

作　　者：华文韬 杨建飞 邱鑫 陈秋仲 刘业 胡伦 周锴 刘畅 陈洪生 HUA Wentao;YANG Jianfei;QIU Xin;CHEN Qiuzhong;LIU Ye;HU Lun;ZHOU Kai;LIU Chang;CHEN Hongsheng(Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing,School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]南京师范大学电气与自动化工程学院,江苏省三维打印装备与制造重点实验室,南京210023

出　　处：《微特电机》2024年第4期8-15,共8页Small & Special Electrical Machines

基　　金：国家自然科学基金青年科学基金项目(51407095);江苏省高校自然科学基金项目(21KJB470025)。

摘　　要：基于直接转矩控制(DTC)的开绕组无刷直流电机(BLDCM)具有运行效率高、电压矢量多样、控制结构简单等优点,适用于工业领域。根据共直流母线开绕组BLDCM控制拓扑搭建了相应的数学模型,对该拓扑下电压矢量的特性进行理论分析及分类,并将电压幅值不为零的电压矢量分为大、中、小三类。分析结果表明:在相同的运行条件下,大矢量作用下转矩变化率最大,小矢量作用下转矩变化率最小,中矢量居于两者之间。仿真结果验证了理论分析的正确性和控制方法的可行性。The open winding brushless direct current motor(BLDCM)based on direct torque control(DTC)has the advantages of high operating efficiency,diverse voltage vectors,and simple control structure,making it very suitable for the industrial field.A corresponding mathematical model based on the common DC bus open winding BLDCM control topology was established,and theoretical analysis and classification of the characteristics of voltage vectors under the topology were conducted.Voltage vectors with non zero voltage amplitude were classified into three categories:large,medium,and small.The analysis results indicated that under the same operating conditions,the torque change rate was the highest under the action of a large vector,the torque change rate was the lowest under the action of a small vector,and the middle vector was between the two.The simulation results verifed the correctness of the theoretical analysis and the feasibility of the control method.

关 键 词：无刷直流电机 开绕组 直接转矩控制 两相导通 电压矢量 

分 类 号：TM464[电气工程—电器]