无刷双馈电机专家自适应PID控制系统仿真

Simulation of Expert Self-adaptive PID Control System for Brushless Doubly-fed Machine

研究了专家自适应PID控制器在无刷双馈电机调速系统中的应用 ,并利用MATLAB/Simulink工具建立了控制系统的仿真模型 ,在起动和稳态情况下进行仿真实验 .结果表明 ,与开环状态相比 ,该控制器大大提高了无刷双馈电机调速系统的静态和动态性能 ,使得电机在转速或者负载发生改变时的超调量减小 ,且转速更快重新趋于稳定 ,是一种控制思想简单、硬件实现方便的闭环控制调节方案 .

The application of expert self adaptive PID controller in Brushless Doubly Fed Machines (BDFM) for adjustable speed drive was presented, the simulation model of the control system based on MATLAB/Simulink was also established, then the simulation experiments under the conditions of startup and steady state were carried out. The results show that, comparing with open loop condition, the static and dynamic performances of the system are improved greatly by using the controller, and the overshoot of the machine decreases when the rotating speed or the load changes. The scheme proposed here is a simple and convenient closed loop control strategy for BDFM drive.