Digital redesign of uncertain interval systems based on time-response resemblance via particle swarm optimization

Chen Chien Hsu; Geng Yu Lin

doi:10.1109/SMCIA.2008.5045931

Digital redesign of uncertain interval systems based on time-response resemblance via particle swarm optimization

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, a novel design approach based on time-response resemblance of the closed-loop system via particle swarm optimization is proposed to improve performance of the redesigned digital system for continuous-time uncertain interval systems. The design rationale of the proposed approach is to derive a digital controller for the redesigned digital system so that step response sequences corresponding to the extremal sequence energy closely match those of their continuous counterpart under the perturbation of the plant parameters. By suitably formulating the design problem as an optimization problem, an evolution framework incorporating three PSOs(particle swarm optimizations) is presented to derive a set of optimal parameters for the digital controller. Computer simulations have shown that time responses of the redesigned digital system having an interval plant have a better resemblance to their continuous-time counter part in comparison those obtained using existing open-loopdiscretization methods.

Original language	English
Title of host publication	SMCia/08 - Proceedings of the 2008 IEEE Conference on Soft Computing on Industrial Applications
Pages	32-37
Number of pages	6
DOIs	https://doi.org/10.1109/SMCIA.2008.5045931
Publication status	Published - 2008
Externally published	Yes
Event	2008 IEEE Conference on Soft Computing on Industrial Applications, SMCia/08 - Muroran, Japan Duration: 2008 Jun 25 → 2008 Jun 27

Other

Other	2008 IEEE Conference on Soft Computing on Industrial Applications, SMCia/08
Country	Japan
City	Muroran
Period	2008/06/25 → 2008/06/27

Keywords

Digital redesign
Interval plants
ISE
Particle swarm optimization
Sequence energy
Signal energy
Time response
Uncertain systems

ASJC Scopus subject areas

Artificial Intelligence
Computational Theory and Mathematics
Software
Industrial and Manufacturing Engineering

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Hsu, CC & Lin, GY 2008, Digital redesign of uncertain interval systems based on time-response resemblance via particle swarm optimization. in SMCia/08 - Proceedings of the 2008 IEEE Conference on Soft Computing on Industrial Applications., 5045931, pp. 32-37, 2008 IEEE Conference on Soft Computing on Industrial Applications, SMCia/08, Muroran, Japan, 2008/06/25. https://doi.org/10.1109/SMCIA.2008.5045931

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