一种直流调速系统带宽参数化反馈控制

Bandwidth parameterized feedback controlling of DC speed regulating system

该文根据直流电机电枢回路组成和转矩控制规律,建立了直流调速系统模型框图和传递函数,并通过定义系统模型传递函数的增益尺度和频域尺度,设计一种具有前馈部分的比例-微分(PD)反馈控制器,同时利用闭环系统带宽参数化PD控制器增益。使用Matlab/Simulink软件进行仿真,结果表明,基于带宽参数化的控制器设计简单直观且调节方便,带宽越大,系统响应速度越快,抑制外扰效果越好。

Based on the armature loop composition and torque control law of the direct-current(DC)motor,the block diagram and the transfer function of the DC speed regulating system are established here.By defining the frequency scale and gain scale of the DC speed regulating system transfer function,a PD controller parameterized with the bandwidth of closed system is designed with feedforward part.Employing Matlab/Simulink for the simulation,the results show that the parameterized PD controller designing is simple,intuitive and easy to adjust.Also,the larger the closed-loop bandwidth is,the faster the system response is,and the external disturbance rejection property is better.