System of Variable Frequency and Speed Control Based on DSP TMS320F2812

Introduced principle of variable frequency and speed with DTC,presented design method of the control system's software and hardware circuit with TMS320F2812.The method utilized completely the wealthy peripherals and high speed calculation function of chip,simplified hardware design,block diagram of main program and interrupt program were given for DTC control with DSP.The experiment results show that the real-time character and accuracy of the control system was improved,the dynamic and static performance was remarkably improved too.