基于微分反馈控制的无刷直流电动机调速系统仿真研究

Simulation and Studies of BLDCM Timing System Based on Differential Feedback Control

PI调节器广泛用于系统闭环控制,但不能满足高性能的要求。在研究速度反馈中加入微分反馈对抑制系统响应超调和闭环系统零、极点的影响,提出应用比例—微分反馈控制,对无刷电机速度控制系统进行调节。利用Matlab/Simulation进行了系统仿真实验。结果表明,该控制方法与传统PID控制系统相比,具有瞬态响应性能快,无超调,并有很强的抗扰动能力。

PI （proportional-integral） controller has been widely applied to the closed control system, but it cannot satisfied higher performance. The influence of overshoot-resisting techniques of differential feedback control and its closed-loop zeros and poles was analyzed. P-D （proportional-differential） controller is applied to closed-loop control on BLDCM, simulated and analyzed in Matlab/Simulink. Simulations showed that, compared with traditional PID control, this method can not only quicken, but also the speed response of system without overshooting, furthermore it is more robust to load disturbance.