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Generalized Iterative Learning Control Using Successive Projection: Algorithm, Convergence, and Experimental Verification

delete2020-11-01
delete22
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OA
AI
Y
Yiyang Chen
B
Bing Chu *
C
Christopher Freeman
DOI:10.1109/TCST.2019.2928505delete
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Abstract

Abstract

En 中文
Iterative learning control (ILC) is a high-performance control design method for systems working in a repetitive manner. ILC has traditionally focused on tracking a reference defined at all points over a finite-time interval; recent developments have begun to exploit the design freedom unlocked by tracking only a finite number of distinct time instants driven by the needs of, e.g., robotic pick-and-place tasks. This paper proposes a generalized ILC paradigm, which extends and unifies the scope of existing design frameworks by amalgamating previous task descriptions and embedding system constraints on the input and output. A novel solution is then derived using a successive projection method, which provides well-defined convergence properties. The proposed design framework is illustrated by applying it to a spatial reference tracking problem with experimental results on a gantry robot testing platform demonstrating its effectiveness.
Keywords:
Robots
Convergence
Control design
Task analysis
Hilbert space
Tracking
Iterative learning control
Constraint handling
iterative learning control (ILC)
projection methods
spatial path tracking
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Journal

IEEE Transactions on Control Systems Technology cover
IEEE Transactions on Control Systems Technology
IF:
3.9
Papers:
4.9K
Citations:
1.7W

Organization

U
university of southampton
Scholars:
3.3W
Papers: 3.2W
Citations: 52