轨道交通异步牵引电机无速度传感器矢量控制技术分析  

Analysis of speed sensorless vector control technology for asynchronous traction motor in rail transit

作　　者：杨北辉 钟立群 朱龙胜 Yang Beihui;Zhong Liqun;Zhu Longsheng

机构地区：[1]深圳市英威腾交通技术有限公司,广东深圳518108

出　　处：《现代城市轨道交通》2019年第9期29-35,共7页Modern Urban Transit

摘　　要：介绍适用于轨道交通的异步牵引电机无速度传感器矢量控制方法。分别从控制原理、不同调制模式的切换、基波电流提取、带速重投以及黏着控制方面对轨道交通中列车异步牵引电机的矢量控制原理进行说明。着重阐述如何根据异步牵引电机数学模型采用全阶磁链观测器观测出异步牵引电机的转子磁链,利用转速估计计算,实现异步牵引电机无速度传感器的转速估计。仿真和实验结果表明,该方法可以实现转速的快速和准确估计,系统具有良好的动静态性能。This paper introduces speed sensorless vector control method of asynchronous traction motor for rail transit.The vector control principle of train asynchronous traction motor in rail transit is explained in terms of control principle,switching modes of different modulations,extraction of fundamental current,speed restart and adhesion control.The focus is on how to use full-order flux observer to observe the rotor flux of asynchronous traction motor based on the mathematical traction model of asynchronous traction motor,and realize speed estimation of asynchronous motor without speed sensor by speed estimation calculation.The simulation and experimental results show that this method achieves fast and accurate speed estimation,and the system has good dynamic and static performance.

关 键 词：轨道交通 异步牵引电机 无速度传感器 速度估算 带速重投 

分 类 号：U264[机械工程—车辆工程]