高精度音圈快速反射镜的自适应鲁棒控制

发布时间：2018-01-13 16:28

  本文关键词：高精度音圈快速反射镜的自适应鲁棒控制　出处：《光学精密工程》2017年09期 　论文类型：期刊论文

  更多相关文章： 航空光电稳定平台 音圈式-快速反射镜 压电式-快速反射镜 视轴稳定精度 参数鲁棒性

【摘要】：为了进一步提高复合轴航空光电稳定平台的性能,文中首先在硬件电路中采用电流环将复杂的电机模型简化为一阶模型,同时保证电机的输出力矩稳定;然后在PD控制器的基础上,引入了自适应鲁棒控制器,对快速反射镜进行位置控制和扰动抑制;最后分别通过带宽测试实验、扰动抑制实验、视轴稳定实验和鲁棒性实验对其性能进行测试,并采用DOB型音圈式-快速反射镜和压电陶瓷式-快速反射镜做对比。实验结果表明:相比于传统的DOB型音圈式-快速反射镜系统,本文控制方法的参数鲁棒性更强;相比于传统的压电式-快速反射镜,本文控制方法不仅视轴稳定精度与其不相上下,还具有更大的行程。除此之外,在80Hz以内任意频率扰动的影响下,基于ARC型音圈式-快速反射镜的复合轴航空光电稳定平台的视轴稳定精度均可以控制在5μrad(RMS)以内;同时在-40℃~50℃的温度条件下依然可以保持该性能,远远优于DOB型音圈式-快速反射镜的效果。本文控制方法完全满足高精度航空光电稳定平台的性能要求,对提高航空光电稳定平台控制系统的抗扰动性能具有较高的实用价值。
[Abstract]:In order to further improve the performance of the composite shaft aero-photoelectric stabilization platform, the complex motor model is simplified into the first order model by using the current loop in the hardware circuit, and the output torque of the motor is guaranteed to be stable at the same time. Then based on PD controller, an adaptive robust controller is introduced to control the position and suppress the disturbance of the fast mirror. Finally, the performance is tested by bandwidth test, disturbance suppression experiment, visual axis stability experiment and robustness experiment. The comparison of DOB type voice coil fast mirror and piezoelectric ceramic type fast mirror is made. The experimental results show that compared with the traditional DOB type voice coil fast reflector system. The parameter robustness of the control method in this paper is stronger; Compared with the traditional piezoelectric mirror, the control method not only has the same stability accuracy, but also has a larger stroke. In addition, under the influence of any frequency disturbance within 80 Hz, the proposed control method is more accurate than the traditional piezoelectric mirror. The optical axis stabilization accuracy of the composite axis aero-photoelectric stabilization platform based on ARC type voice coil and fast reflector can be controlled within 5 渭 RMS. At the same time, the properties can be maintained at the temperature of -40 鈩，

本文编号：1419645