摘要
环形绕组无刷直流(CWBLDC)电机的结构与有刷直流电机相似,定子绕组环形连接,用可控开关替代换向器,转子为永磁体磁极。由于其结构的特殊性,传统永磁电机的驱动控制方法不适用于CWBLDC电机。该文结合CWBLDC电机的结构特点,详细分析CWBLDC电机四象限控制原理。首先介绍CWBLDC电机系统;然后分析其正转电动和反转电动的时序控制方法,并分析电机的制动过程及制动电流可控的原理;最后对分析过程进行仿真,并搭建了实验平台进行实验。仿真和实验结果表明,该文对CWBLDC电机的电动运行分析正确,制动方式有效,能实现CWBLDC电机的四象限运行。
Circular winding brushless DC motor has the similar structure with brush DC motor.The stator windings are connected in a ring and the commutator is made up of controllable power switch.The rotor is permanent magnet.Because of the particularity of structure,the drive methods of conventional permanent magnet motor can’t be applied to circular winding brushless DC(CWBLDC)motor directly.Therefore,4-quadrant operation of CWBLDC motor is analyzed in detail based on the structure of CWBLDC motor.The system of CWBLDC motor is introduced at first,then the sequence control of the drive circuit in forward and reverse mode is studied.After that the braking process and the controllability of braking current are analyzed.The simulation of the motor process,braking process and forward-reverse process is carried out,and an experiment platform for CWBLDC motor is set up.The simulation and experimental results indicate that the analysis in electric mode is correct and the braking method is effective,which can achieve the 4-quadrant operation of CWBLDC motor.
作者
贾喆武
张庆湖
王东
Jia Zhewu;Zhang Qinghu;Wang Dong(National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering,Wuhan 430000 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2020年第18期3821-3829,共9页
Transactions of China Electrotechnical Society
基金
国家自然科学基金重大项目(51690181)
国家自然科学基金杰青项目(51825703)资助。
关键词
CWBLDC
电动运行
制动运行
四象限运行
Circular winding brushless DC motor
motor operation
braking
4-quadrant operation
