变频调速系统Matlab仿真及硬件实现

介绍了SVPWM的基本原理及其在Matlab/Simulink环境下的仿真,并给出硬件的实现方法。在分析变频调速原理和三相异步电机的数学模型的基础上,建立三相异步电机空间矢量控制系统的仿真模型,搭建转速、电流双闭环变频调速系统。通过调节各个模块的参数,得到理想的仿真波形,实现整个系统的仿真。硬件系统则是以DSP芯片TMS320F2812为核心,设计相应的外围电路得到SVPWM波。仿真和实验的结果证明该SVPWM调制方案正确可行。

The Sinulation of Frequency Control of Motor Speed System Base on Matlab/Simulink and Hardware Realization

The page introduced the basic principle of space vector pulse width moducation(svpwm) and the simulated in Matlab/Simulink, and the method of hardware realization. On the basis of analysis of the principle of frequency control of motor speed, and the mathematical model of three phase asynchronous motor, the simulation model of space vector control system of three phase asynchronous motor were established, and a speed and current double closed-loop adjustable speed with SVPWM variable frequency controling system is designed. By adjusting simulation parameters in each model, we get perfect simulation waveform. TMS320F2812 DSP chip is employed as CPU, which bulid SVPWM waves. The simulation and hardware results prove the effectiveness of contol model.