基于模糊自适应的PID控制器研究

Study on PID Controller Based on Fuzzy Adaptive

目前市场上使用的电机主要以异步电机为主,但随着电力电子技术的发展,异步电机的缺点逐渐暴露,如其功率因数较差和启动该过程中动态性能差等。通过空间矢量的分析方法对直接转矩控制系统进行了研究,提出了模糊自适应PID控制算法速度调节器的直接转矩控制系统,并运用Simulink仿真软件对整个系统建模仿真。仿真结果表明,该控制系统可以快速地响应负载的变化,提高异步电机的使用性能。

The motors used in the market are mainly asynchronous motors at present.With the development of power electronics technology for asynchronous motors,the disadvantages thereof are gradually exposed,such as its poor power factor and poor dynamic performance in the process of initiation.Through the analysis of space vector,die direct torque control system is studied,and the fuzzy adaptive PID control algorithm speed regulator of direct torque control system is put forward,and the MATLAB simulation software is used for the modeling and simulation of entire system.The simulation results show that the control system can respond quickly to the load change and improve the performance of asynchronous motor.