基于TMS320F28335的三相感应电机矢量控制系统的研究

Research of Three Phase Induction Motor Vector Control System Based on TMS320F28335

为了改善三项感应电机传统调速方法难以满足日益进步的自动化水平要求的缺点,提高调速系统对电机的控制性能。本文基于TMS320F28335运用矢量控制方法,在以光电编码器为测速传感器的环境下,通过电流模型观测其磁链并进行磁场定向,分别使用不同类型的参数数据进行实验验证。实验结果表明基于电流模型法的磁链观测能够准确的进行磁场定向。得出结论:基于DSP的矢量控制系统能够极大的减小电机运行过程中参数变化的影响,同时减小电机脉动,有效的提高了电机控制的可靠性与精度,其控制性能完全可以与直流电动机相媲美。

In order to improve the traditional induction motor speed control method is difficult to meet the increasing requirements of the level of automation shortcomings and improve the speed control system of the motor control performance. Based on the TMS320 F28335, a vector control method is used in this paper. In the environment of photoelectric encoder as speed sensor, the flux linkage is observed through the current model and the magnetic field is oriented. Different types of parameter data are used to verify the experiment. The experimental results show that the flux-based observation based on the current model method can accurately orient the magnetic field. It is concluded that the vector control system based on DSP can greatly reduce the influence of parameter changes during the motor running, reduce the motor pulsation and improve the reliability and precision of the motor control effectively. The control performance can be completely matched with the direct current Motor comparable.