对液压位置饲服系统进性了建模,并且采用最优控制理论使误差和控制能消耗最小。在反馈方式上不采用传统状态反馈方式,而采用液压系统固有的压力、伺服阀阀芯位移、位置传感器等信号进行反馈,从而不用构造状态观测器,简单、可行性好。和古典控制理论相比:有误差小,响应快,控制能耗小等优点。 Model the hydraulic position of the feed system and use the optimal control theory to minimize error and control consumption. In the feedback method, the traditional state feedback method is not adopted, but the inherent pressure of the hydraulic system, the spool displacement of the servo valve, the position sensor and other signals are used for feedback. Therefore, it is simple and feasible to construct the state observer. Compared with the classical control theory: the error is small, fast response, control energy consumption and other advantages.