基于电机控制专用单片机的SPWM变频器

SPWM Inverter Based on Single Chip MicrocomputerSpecial for Motor Control

针对异步电机在高频高速拖动时对变频电源的要求,探讨了怎样使用电机控制专用芯片8XC196MC来实现三相的SPWM逆度,以及V/F控制策略在单片机中的软件实现。在主电路上采用IGBT作为开关器件,在分析和设计了系统的软硬件结构后,给出了实验结果。

According to requirement for variable-frequency power supply while asynchronous motor runs at a high speed,this paper describes how to realize three phase SPWM inversion and V/F control strategy with motor microcontroller 8XC196MC.IGBT are used in main circuit.After analyzing and designing the structure of whole system's hardwares and softwares,the experiment result is given.