摘要
无轴承永磁同步电机良好的启动是实现电机稳定运行的基础。首先给出了无轴承永磁同步电机转矩绕组数学模型,通过转子初始位置粗测和二分搜索法完成对无轴承永磁同步电机转子的精确定位后,提出了基于转子磁场定向控制的启动方法。然后以数字信号处理芯片TMS320LF2812为核心,采用霍耳位置传感器与增量式光电编码器等主要器件,构建了无轴承永磁同步电机的启动控制实验平台,并进行了相关仿真和实验研究。仿真和实验结果表明该方法能准确地检测出无轴承永磁同步电机转子的初始位置,电机能够平稳、快速启动。
The basis of stable operation of bearingless permanent magnet synchronous motor （PMSM） is nicer startup. At first,the mathematic model of bearingless PMSM＇s torque windings was given. After detec- ting exact initial rotor position by cursory detecting initial rotor position and binary search method, the starting control approach based on rotor flux orientation was presented. The experimental platform of starting control system on bearingless PMSM was built. In this platform, the core component is digital signal processor TMS320LF2812, and Hall position sensor,incremental photoelectrical encoder and the other major components are also adopted. In addition, relevant simulation and experiment research were conducted. Simulation and experiment results show that this method is capable of realizing the inspection of initial rotor position for bearingless PMSM,and the motor can start up smoothly and quickly.
出处
《电气传动》
北大核心
2011年第2期61-64,共4页
Electric Drive
关键词
无轴承电机
永磁同步电机
二分搜索法
转子初始位置
转子磁场定向
bearingless motor
permanent magnet synchronous motor
binary search method
initial rotorposition
rotor flux orientation
