基于干扰观测器的调速系统的防振控制

Vibration Suppression Control of Two-Inertia System Based on A Disturbance Observer

二惯性系统为无阻尼自由振荡系统，因而易产生低频振动，且不易控制。提出了利用干扰观测器改变二惯性系统共振频率的原理，并根据极点配置的要求设计了防振控制系统。仿真实验表明，该系统具有良好的防振控制性能，而且对负载惯性矩的模型化误差具有较强的鲁棒性。

Two -inenia system is an undamped free oscillation system, so it brings to low frequency vibration easily and it is difficult to be controlled. The principle is presented that changes the system's resonance frequency using disturbance observer, and vibration suppression control of two-inertia system is designed according to the repuirement of pole assignment. The simulation experiment shows that the system has better performance of vibration suppression control and stronger robustness for modeling error of load inertia moment.