Digital redesign of uncertain interval systems via a hybrid particle swarm optimizer

dc.contributor 國立臺灣師範大學電機工程學系 zh_tw Chen-Chien Hsu en_US Chun-Hwei Kao en_US 2014-10-30T09:28:30Z 2014-10-30T09:28:30Z 2008-07-01 zh_TW
dc.description.abstract In this paper, a hybrid optimiser incorporating particle swarm optimisation (PSO) and an enhanced NM simplex search method is proposed to derive an optimal digital controller for uncertain interval systems having an interval plant based on frequency-response resemblance. By combining the uncertain plant and controller, extremal systems for the redesigned digital system and its continuous counterpart can be obtained as the basis for comparison. The design problem is then formulated as an optimisation problem of an aggregated error function in terms of frequency-response deviation between the redesigned digital system and its continuous counterpart, and subsequently optimised by the proposed optimiser to obtain an optimal set of parameters for the digital controller. Thanks to the performance of the proposed hybrid optimiser, frequency envelope of the redesigned digital system using the digital controller evolutionarily derived by the proposed approach bare a better resemblance to its continuous-time counterpart in comparison to those obtained using existing open-loop discretisation methods. en_US
dc.identifier ntnulib_tp_E0607_01_009 zh_TW
dc.identifier.issn 1751-648X zh_TW
dc.language en zh_TW
dc.publisher Inderscience en_US
dc.relation International Journal of Innovative Computing and Applications, 1(4), 232-243. en_US
dc.subject.other digital redesign en_US
dc.subject.other particle swarm optimisation en_US
dc.subject.other PSO en_US
dc.subject.other interval plants en_US
dc.subject.other uncertain systems en_US
dc.subject.other Nelder and Mead simplex research en_US
dc.subject.other NM simplex search en_US
dc.subject.other frequency response en_US
dc.subject.other discretisation en_US
dc.subject.other extremal systems en_US
dc.subject.other hybrid optimisation en_US
dc.subject.other digital controllers en_US
dc.title Digital redesign of uncertain interval systems via a hybrid particle swarm optimizer en_US