基于DSP和自适应PID控制器的异步电动机矢量控制交流伺服系统

The Vector Control AC Servo System of Asynchronous Motor Based on DSP and Adaptive PID Controller

在分析风力发电的变速风机具有非线性强、转动惯量大、转轴机械阻尼随转速变化大等特点的基础上，指出了自适应PID控制的重要性，介绍了基于DSP和自适应PID控制器的异步电动机矢量控制交流伺服系统，并设计了相应的软件来使该系统得到实现。试验结果表明，该伺服系统较之采用传统PID控制算法的系统具有更优良的静态与动态性能。

On the basis of analyzing the wind turbine variable speed fan＇s characteristic of strong nonlinearity, large moment of inertia and changing mechanical damping of rotating shaft much with rotating speed, the author of this paper points out the essentiali- ty of the self-adaptive PID control, introduces the vector control AC servo system of the asynchronous motor based on DSP and adap- tive PID controller and designs the related software to actualize the system. The experiment results show that the system is of higher accuracy and fine dynamic and static performances than the old system with traditional PID control algorithm.