A passive repetitive controller for discrete-time finite-frequency positive-real systems
This work proposes and studies a new internal model for discrete-time passive or finite-frequency positive-real systems which can be used in repetitive control designs to track or to attenuate periodic signals. The main characteristic of the proposed internal model is its passivity. This property im...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2009 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/6104 |
| Acesso em linha: | https://hdl.handle.net/2117/6104 |
| Access Level: | acceso abierto |
| Palavra-chave: | Discrete-time systems Discrete-time control Discrete-time passivity Finite-frequency positive realness Repetitive control Control de tiempo discreto Control de temps discret Control repetitivo Control repetitiu Sistemes de temps discret Classificació INSPEC::Control theory Àrees temàtiques de la UPC::Informàtica::Automàtica i control |
| Resumo: | This work proposes and studies a new internal model for discrete-time passive or finite-frequency positive-real systems which can be used in repetitive control designs to track or to attenuate periodic signals. The main characteristic of the proposed internal model is its passivity. This property implies closed-loop stability when it is used with discrete-time passive plants, as well as the broader class of discrete-time finite-frequency positive real plants. This work discusses the internal model energy function and its frequency response. A design procedure for repetitive controllers based on the proposed internal model is also presented. Two numerical examples are included. |
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