Abstract
This paper investigates the problem of the high precision tracking control of piezoelectric actuators (PEAs) without using the inverse of the uncertain hysteresis. Based on fuzzy system approximator and particle swarm optimization (PSO) algorithm, a proposed enhanced L1 adaptive controller is developed. The proposed controller provides fast and robust adaptation simultaneously with guaranteed desired transient performance. Moreover, it has a simple form and requires fewer adaptation parameters. The adaptation gain is determined via PSO algorithm. The proposed controller is tested on a lab-scale PEA system. Experimental results with comparative studies with different techniques have been developed. The simulation results reveal that the proposed controller outperforms the other controllers in terms of normalized root-mean-square and maximum tracking errors for different frequencies.
Original language | English |
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Pages (from-to) | 1329-1343 |
Number of pages | 15 |
Journal | International Journal of Adaptive Control and Signal Processing |
Volume | 33 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2019 |
Keywords
- adaptive fuzzy
- hysteresis
- micropositioning
- piezoelectric actuators
ASJC Scopus subject areas
- Control and Systems Engineering
- Signal Processing
- Electrical and Electronic Engineering