本文關(guān)鍵詞：基于PI逆模型的快速微擺反射鏡的開環(huán)控制　出處：《紅外與激光工程》2017年08期 　論文類型：期刊論文

  更多相關(guān)文章： 快速微擺反射鏡 壓電陶瓷驅(qū)動器 遲滯特性 Prandtl-Ishlinskii模型 開環(huán)控制

【摘要】：由壓電陶瓷驅(qū)動器構(gòu)成的快速微擺反射鏡平臺存在遲滯特性,影響了對快速微擺反射鏡的控制。為了能夠有效的對快速微擺反射鏡進(jìn)行控制,采用基于PI逆模型的開環(huán)控制方法。首先,采用PI模型對快速微擺反射鏡平臺的遲滯特性建立數(shù)學(xué)模型,通過最小二乘法辨識PI模型的參數(shù);其次,基于PI模型的可逆性,求解PI逆模型參數(shù);最后,驗(yàn)證基于PI逆模型的開環(huán)控制方法的有效性。根據(jù)軌跡跟蹤實(shí)驗(yàn)得到的數(shù)據(jù),在正弦波軌跡輸入信號下的均方根誤差為1.23%,最大誤差為2.45%;在三角波軌跡輸入信號下的均方根誤差為1.3%,最大誤差為2.37%。證明了基于PI逆模型的開環(huán)控制方法是可行的,能夠有效地控制快速微擺反射鏡。
[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.
【作者單位】： 北京理工大學(xué)光電學(xué)院光電成像技術(shù)與系統(tǒng)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金(61575023) 總裝預(yù)研基金(9140A02060415BQ01005)
【分類號】：TN384;TP273
【正文快照】： 0引言近年來,基于壓電陶瓷的微驅(qū)動技術(shù)得到了迅速發(fā)展,應(yīng)用拓展到IC控制、激光測量光軸控制、遙感成像、顯微成像、光學(xué)微掃描成像、光電穩(wěn)像、數(shù)碼相機(jī)防抖等諸多領(lǐng)域。由于成像過程中的攝像機(jī)平臺抖動或場景掃描等往往導(dǎo)致成像的模糊或激光指示的偏離,采用基于壓電陶瓷的光，

本文編號：1435885