本文關鍵詞：高精度音圈快速反射鏡的自適應魯棒控制　出處：《光學精密工程》2017年09期 　論文類型：期刊論文

  更多相關文章： 航空光電穩(wěn)定平臺 音圈式-快速反射鏡 壓電式-快速反射鏡 視軸穩(wěn)定精度 參數(shù)魯棒性

【摘要】：為了進一步提高復合軸航空光電穩(wěn)定平臺的性能,文中首先在硬件電路中采用電流環(huán)將復雜的電機模型簡化為一階模型,同時保證電機的輸出力矩穩(wěn)定;然后在PD控制器的基礎上,引入了自適應魯棒控制器,對快速反射鏡進行位置控制和擾動抑制;最后分別通過帶寬測試實驗、擾動抑制實驗、視軸穩(wěn)定實驗和魯棒性實驗對其性能進行測試,并采用DOB型音圈式-快速反射鏡和壓電陶瓷式-快速反射鏡做對比。實驗結果表明:相比于傳統(tǒng)的DOB型音圈式-快速反射鏡系統(tǒng),本文控制方法的參數(shù)魯棒性更強;相比于傳統(tǒng)的壓電式-快速反射鏡,本文控制方法不僅視軸穩(wěn)定精度與其不相上下,還具有更大的行程。除此之外,在80Hz以內任意頻率擾動的影響下,基于ARC型音圈式-快速反射鏡的復合軸航空光電穩(wěn)定平臺的視軸穩(wěn)定精度均可以控制在5μrad(RMS)以內;同時在-40℃~50℃的溫度條件下依然可以保持該性能,遠遠優(yōu)于DOB型音圈式-快速反射鏡的效果。本文控制方法完全滿足高精度航空光電穩(wěn)定平臺的性能要求,對提高航空光電穩(wěn)定平臺控制系統(tǒng)的抗擾動性能具有較高的實用價值。
[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，

本文編號：1419645