摘要
基于长定子直线同步电机(LSLSM)的磁浮列车在中高速运行时,传统的车载位置传感器无法准确获取电机位置信息,并且位置信息易受到干扰,为此提出基于滑模观测器的位置辨识方法。在分析滑模观测器对定子电阻、d轴电感和q轴电感参数敏感性基础上,采用一种基于q轴电感校正的LSLSM位置辨识方法,可提高位置观测精度和系统可靠性。通过数字仿真和磁浮试验线验证了所提方法的正确性。
When the maglev train runs at medium and high speed based on the long stator linear synchronous motor(LSLSM),the position information of the motor can’t be accurately obtained by the traditional on-board position sensor,and the position information is susceptible to interference.A position identification method based on sliding mode observer was proposed.Based on the analysis of the sensitivity of stator resistance,d-axis inductance and q-axis inductance of sliding mode observer,a position identification method of LSLSM based on q-axis inductance correction was provided,which could improve the position observation accuracy and system reliability.The correctness of the proposed method was verified by digital simulation and magnetic levitation test line.
作者
梅文庆
南永辉
廖武
文宇良
赵岸峰
MEI Wenqing;NAN Yonghui;LIAO Wu;WEN Yuliang;ZHAO Anfeng(CRRC Zhuzhou Institute Co.,Ltd.,Zhuzhou,Hunan 412001,China)
出处
《机车电传动》
北大核心
2020年第1期79-84,共6页
Electric Drive for Locomotives
基金
湖南省科技创新计划项目(2018RS3137)。
