摘要
矿井风机性能直接影响着煤矿的安全生产,为了保证双转子对转永磁同步电机(CDPMSM)维持等速,研究了对旋风机用CDPMSM的同步技术。通过特殊的永磁材料和双转子尺寸配合方法,保证稳态时2个转子的同步。分析了定子耦合磁场的变化特点,引入定子铁心法向磁阻和切向磁阻,建立了基于并联磁路的等效磁网络模型。建立了偏差耦合控制系统,保证双转子动态同步能力。研究结果表明,该电机在不对称负载时能保持较好的转速同步能力。
The performance of mine fans directly influences the production safety of the coal mine.In order to maintain the same speed of the two rotors of contra-rotating dual-rotor permanent magnet synchronous motor(CDPMSM),the dual-rotor synchronization technology of the CDPMSM for the counter-rotating fan is studied.Through the special permanent magnet material selection and the dual-rotor size matching method,the synchronization of the two rotors in steady state is ensured.The characteristics of the stator coupling magnetic field are analyzed.The model of equivalent magnetic network based on parallel magnetic circuit is established by introducing stator core normal direction reluctance and tangential direction reluctance.A deviation coupling control system is established to ensure the dynamic synchronization capability of the two rotors.The research results show that the CDPMSM can maintain good speed synchronization ability under asymmetric load.
作者
张林森
胡平
宁小玲
ZHANG Linsen;HU Ping;NING Xiaoling(College of Weaponry Engineering,Naval University of Engineering,Wuhan 430033,China;College of Naval Architecture and Ocean Engineering,Naval University of Engineering,Wuhan 430033,China)
出处
《电机与控制应用》
2021年第1期61-67,共7页
Electric machines & control application
基金
十三五国防预研基金项目(3020601010501)。
关键词
双转子对转永磁同步电机
转子同步技术
等效磁网络模型
有限元分析
contra-rotating dual-rotor permanent magnet synchronous motor(CDPMSM)
rotor synchronization technique
equivalent magnetic network model
finite element analysis
