无刷直流电机RBF磁场定向控制及监控系统设计

Design of RBF field-oriented control and monitoring system for brushless DC motor

针对现有无刷直流电机转矩脉动抑制方法存在抑制效果不理想,或脉动抑制效果好但学习算法复杂,不利于推广的问题,将RBF神经网络与磁场定向控制相结合,选用Luminary 615微控制器和无刷电机专用芯片MC33035,设计了无刷直流电机磁场定向控制系统。并开发基于Visual Basic的配套电机上位机监控系统,能在低成本下实现转速等参数的图形化显示及电机参数等的设置。实验结果表明,所设计的无刷直流电机RBF磁场定向控制系统转矩脉动小、控制精度高。

The available torque ripple suppression method of brushless DC motor has unsatisfactory suppression effect, or good ripple suppression effect while owning complicated learning algorithm, and is bad for promotion. To solve these problems, the field-oriented control system of the brushless DC motor was designed, which combines the RBF neural network and field- oriented control, and uses Luminary 615 microcontroller and brushless motor dedicated chip MC33035. The Visualbasic-based upper computer monitoring system matching with the motor was developed, which can realize the graphical display of parameters such as rotate speed and setting of motor parameters with low cost. The experimental results show that the designed RBF field- oriented control system of brushless DC motor has small torque ripple and high control accuracy.