基于PI逆模型的快速微摆反射镜的开环控制

发布时间：2018-01-17 02:21

  本文关键词：基于PI逆模型的快速微摆反射镜的开环控制　出处：《红外与激光工程》2017年08期 　论文类型：期刊论文

  更多相关文章： 快速微摆反射镜 压电陶瓷驱动器 迟滞特性 Prandtl-Ishlinskii模型 开环控制

【摘要】：由压电陶瓷驱动器构成的快速微摆反射镜平台存在迟滞特性,影响了对快速微摆反射镜的控制。为了能够有效的对快速微摆反射镜进行控制,采用基于PI逆模型的开环控制方法。首先,采用PI模型对快速微摆反射镜平台的迟滞特性建立数学模型,通过最小二乘法辨识PI模型的参数;其次,基于PI模型的可逆性,求解PI逆模型参数;最后,验证基于PI逆模型的开环控制方法的有效性。根据轨迹跟踪实验得到的数据,在正弦波轨迹输入信号下的均方根误差为1.23%,最大误差为2.45%;在三角波轨迹输入信号下的均方根误差为1.3%,最大误差为2.37%。证明了基于PI逆模型的开环控制方法是可行的,能够有效地控制快速微摆反射镜。
[Abstract]:The hysteresis characteristics of the rapid pendulum mirror platform made up of piezoelectric ceramic actuator affect the control of the rapid micro pendulum mirror, so as to effectively control the fast micro pendulum mirror. The open loop control method based on Pi inverse model is adopted. Firstly, the mathematical model of the hysteresis characteristic of the rapid pendulum mirror platform is established by using Pi model, and the parameters of Pi model are identified by the least square method. Secondly, the parameters of Pi inverse model are solved based on the reversibility of Pi model. Finally, the validity of the open loop control method based on Pi inverse model is verified. According to the data obtained from the trajectory tracking experiment, the root mean square error under sinusoidal trajectory input signal is 1.23%. The maximum error is 2.45; The root mean square error is 1.3 and the maximum error is 2.37. The open loop control method based on Pi inverse model is proved to be feasible. The rapid pendulum mirror can be effectively controlled.
【作者单位】： 北京理工大学光电学院光电成像技术与系统教育部重点实验室;
【基金】：国家自然科学基金(61575023) 总装预研基金(9140A02060415BQ01005)
【分类号】：TN384;TP273
【正文快照】： 0引言近年来,基于压电陶瓷的微驱动技术得到了迅速发展,应用拓展到IC控制、激光测量光轴控制、遥感成像、显微成像、光学微扫描成像、光电稳像、数码相机防抖等诸多领域。由于成像过程中的摄像机平台抖动或场景扫描等往往导致成像的模糊或激光指示的偏离,采用基于压电陶瓷的光，

本文编号：1435885