基于自适应滑模观测器的PMSM低速控制改进

The Low Speed Control Improvement of PMSM Based on a New Adaptive Sliding Mode Observer

针对传统的永磁同步电机无传感器控制,应用滑模控制策略具有控制性能好、鲁棒性好的优点。使用数字信号处理器(DSP),使得永磁同步电机矢量控制的大量复杂运算要求得到很好的满足。本文在滑模观测器的基础上引入自适应控制,在保证系统扰动能力强的条件下,提出了一种新的模型参考自适应速度辨识方法,减少对电动机参数的依赖,使转速估计更加准确。

For the sensorless control of the traditional permanent magnet synchronous motor, application of sliding mode observer has good advantage of control performance and good robustness . The use of digital signal processor （DSP） has made the large complicated operations requirements of permanent magnet synchronous motor vector control satisfied. The introduction of adaptive control based on SMO has greatly accurate the parameter of position and velocity, and has reduced the dependence on mo- tor parameters.