Title
High-Order Model-Free Adaptive Iterative Learning Control of Pneumatic Artificial Muscle with Enhanced Convergence
Abstract
Pneumatic artificial muscles (PAMs) have been widely used in actuation of medical devices due to their intrinsic compliance and high power-to-weight ratio features. However, the nonlinearity and time-varying nature of PAMs make it challenging to maintain high-performance tracking control. In this article, a high-order pseudopartial derivative-based model-free adaptive iterative learning controller (HOPPD-MFAILC) is proposed to achieve fast convergence speed. The dynamics of PAM is converted into a dynamic linearization model during iterations; meanwhile, a high-order estimation algorithm is designed to estimate the pseudopartial derivative component of the linearization model by only utilizing the input and output data in previous iterations. The stability and convergence performance of the controller are verified through theoretical analysis. Simulation and experimental results on PAM demonstrate that the proposed HOPPD-MFAILC can track the desired trajectory with improved convergence and tracking performance.
Year
DOI
Venue
2020
10.1109/TIE.2019.2952810
IEEE Transactions on Industrial Electronics
Keywords
DocType
Volume
Adaptation models,Convergence,Mathematical model,Muscles,Estimation,Heuristic algorithms,Data models
Journal
67
Issue
ISSN
Citations 
11
0278-0046
6
PageRank 
References 
Authors
0.45
0
7
Name
Order
Citations
PageRank
Qingsong Ai14315.50
Da Ke260.45
Jie Zuo311115.62
Wei Meng429430.14
Quan Liu514530.01
Zhiqiang Zhang660.45
Sheng Quan Xie7225.90