摘要
准确、可靠的转子位置检测是磁场定向控制同步电机系统运行的必要条件。针对高速磁浮列车用长定子直线同步电机的特点,提出了一种基于电感式传感器和DSP的电机动子位置检测新方法。介绍了电感式传感器的硬件结构及其实现电机齿槽信号的检测原理,阐述了DSP获取动子位置的计算方法。分析了检测精度和检测误差,并提出了几点改进措施。在高速磁浮列车定位测速试验系统中的实验表明,该检测方法的检测精度达到对应长定子直线同步电机线圈周期的3o,满足高速磁悬浮列车运行控制的要求。
It is necessary to detect rotor position accurately for field oriented control system of synchronous motor. A new method is forwarded to detect the rotor position for linear synchronous motor in high speed maglev train based on inductive sensor and DSP. The hardware of the inductive sensor, the teeth-slot signals detection principle of long stator, and signals processed with DSP are elucidated. Measurement accuracy and tolerances are analyzed, and several improvements are also presented. In the speed and positioning experiment system of high speed maglev train, the measurement accuracy is less than 3° of the winding pitch of the long stator and can meet the requirement of the operating control system of high-speed maglev train.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第15期129-133,共5页
Proceedings of the CSEE
基金
国家863高技术基金项目(2001AA505000
2004AA505240)~~
关键词
高速磁浮列车
直线同步电机
电感式传感器
数字信号处理器
动子
检测
high speed maglev train
linear synchronous motor
inductive sensor
digital signal processor
rotor
detection
