基于DSP和FOC控制算法的交流电机调速控制系统

Speed Control System of AC Motor Based on DSP and FOC Algorithm

现代电机控制的发展在提高性能、降低损耗、减少成本和其它不断出现的新的技术指标及特殊应用上的要求越来越高,因此有许多新的复杂的控制算法产生。交流电机有许多直流电机所没有的优点,但是对于交流电机的控制相对直流电机更为困难。而DSP的应用使得交流电机控制系统无论是在结构复杂程度、成本和效率上都有很大改观。本文结合了交流感应电机的速度控制中较为有效的控制方法即磁场导向控制(FOC)理论和TI公司的DSP控制器TMS320LF2407介绍了DSP在电机闭环控制中的应用。

Many complicated algorithms have been developed to adapt the high requests on costs, performance and other new standards with the development of motor control. And an AC motor has many advantages that DC motors don't have, but its controllability is weak compared with the latter. The appearance of Digital Signal Processors leads the AC motor controlling system to be much better than ever on either the complexity of hardware structure, costs or efficiency. One of the most efficient motor control algorithms, the Field-Oriented Control (FOC), was introduced together with a motor control system built up with Texas Instrument's DSP Tms320LF2407.