基于干扰观测器的电子节气门连续滑模控制

Disturbance Observer Based Sliding Mode Control of Electronic Throttle

电子节气门是一种典型的非线性系统,采用一般的滑模控制会产生不可消除的抖振,影响控制效果。为解决这一问题,提出基于干扰观测器的滑模控制,其中干扰观测器前馈补偿观测到的干扰,滑模控制器消除其他干扰,因此很大程度上降低了滑模控制器的切换增益值,达到削弱抖振的目的。通过MATLAB/Simulink平台的仿真试验,证明这种控制方法对消除抖振的可行性和有效性。

The electronic throttle is a kind of typical nonlinear system, there will be some oscillation when applying sliding mode control, which definitely affect the control results. For the sake of solving this problem, the disturbance observer based sliding mode control is introduced, the disturbance observer can compensate the observed disturbance. In this way the switch gain can be reduced and the oscillation can also be weakened. The simulation results on MATLAB/Simulink platform prove that disturbance observer based sliding mode control is feasible and valid.