电液力伺服系统的降维状态观测器CAD

CAD of reduced order state observer for electro hydraulic force servo system

分析了降维状态观测器及用于电液力伺服系统的设计特点，研制了计算机辅助设计程序，为系统实施状态反馈创造了前景。同时指出为了避免引起更大的噪声且又要使状态估值的误差尽快衰减，把观测器在Ｓ平面的一对复极点置于系统３个极点（其中一对复极点离虚轴最近）中间。

The paper analyzed the design features of the reduced order state observer for electro hydraulic force servo system and worked cut its CAD prosgram,which creates the prospects for implement of the system state feedback,In the cause of avoiding the more noise and making the errors of the state estimators diminish as fast as possible.It is feasible to assign observer′s twin complex poles on S plane among the three poles of the system (twin complex poles of them the nearest to the imaginary axis) and approach the twin complex poles of the system.