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	Open-closed loop iterative learning control of piezoelectric actuators
	Li P.-Y.
刊名	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
	2014
卷号	22期号:2页码:414-419
ISSN号	ISBN/1004924X
英文摘要	As open-closed loop iterative learning control scheme can up the convergence and reduce the tracking error, this paper uses the scheme to improve high frequency trajectory tracking accuracy of a piezoelectric actuator(PZT). First, a discrete-time open-loop P-type with closed-loop PI-type iterative learning law was proposed and its convergence condition was given. Then, a discrete-time open-closed loop iterative learning controller was designed for the PZT system. Finally, as to 50 Hz and 25Hz+50Hz triangular desired trajectories with single and compound frequencies, the tracking control experiment was performed. Experimental results indicate that the proposed iterative learning controller can achieve 10.6 nm and 12.5 nm maximum tracking errors for the 2 kinds of trajectories, which are 96.25% and 95.62% less than that of the PID controller. It concludes that the proposed control scheme can be easily implemented and can obtain the high accuracy of trajectory tracking without precise hysteresis and PZT system models. It meets both the requirements of single and compound frequency trajectory tracking for high tracking accuracy.
收录类别	EI
语种	中文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/44209]
专题	长春光学精密机械与物理研究所_中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li P.-Y.. Open-closed loop iterative learning control of piezoelectric actuators[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2014,22(2):414-419.
APA	Li P.-Y..(2014).Open-closed loop iterative learning control of piezoelectric actuators.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,22(2),414-419.
MLA	Li P.-Y.."Open-closed loop iterative learning control of piezoelectric actuators".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 22.2(2014):414-419.

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