串口通信数据传输及其在变频器控制中的应用

Data transmission by serial communication with application to inverter control

在汽车车桥性能检测的试验系统中,需要无级变速的交流电机作为动力输入。为实现对交流电机的控制检测,介绍了一种利用VB6.0串口通信控件MsComm实现计算机与变频器之间的通信方法,来实现计算机对变频器的参数传递、运行、频率控制以及对其进行实时监控,从而实现对交流电机控制。实验结果表明,利用VB自身提供的串口通信控件MsComm很好地实现了上位工控机对变频器的监控。

In the experimental of checking and measuring the motor vehicle bridge＇s function, the successive changing speed AC electromotor provides power. In order to control and monitor the AC electromotor, a method of communication between a host computer and MITSUBISHI inverters is introduced with Microsoft Communication Control based on Visual Basic 6.0, which realize the transmission of parameters, the control of running and frequency and real-time supervision of inverter and the control of AC electromotor by the host computer. The results indicate that the host computer monitor the MITSUBISHI inverters well using Microsoft Communication Control based on Visual Basic 6.0.