【作者】 高建树； 魏丽娜；

【Author】 GAO Jian-shu, WEI Li-na (The Research Base of Ground Special Equipment, The Institute of Traffic Engineering, The Civil Aviation University of China, Tianjin 300300,China.

【机构】 中国民航学院航空地面特种设备研究基地； 中国民航学院交通工程学院；

【摘要】 针对在超精密加工控制中对电机的速度和精度的要求提出了多模态控制思想．即将电机的控制分成两个部分,前一阶段使用最优控制,以保证直线电机整个运行过程的快速性;后一阶段使用PID控制,以确保电机精确回到目标点．针对控制的前一阶段提出基于电机模型的时间最优控制系统;重点介绍最优控制及线性时不变系统的最短时间控制理论,并建立了电机的数学模型,将最短时间控制理论应用于电机的控制中．仿真获得了良好的效果．更多还原

【Abstract】 Aim at the electrical machinery speed and the precision in the ultra precise processing control, it proposes the multi-modalities control thought. So the electrical machinery control is divided into two parts, preceding stage use optimum control to guarantee the straight line electrical machinery entire movement process the rapidity. The latter stage uses PID control, to guarantee the electrical machinery precisely to return to the target point. In view of the control preceding stage based on the electrical machinery model time optimum control system, mathematics model of motion actuator is given and linearity invariant system shortest timing control theory of the optimum control is applied to it. The simulation results obtain good effect.更多还原