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Robustification of control systems under uncertainty proportions

Robustifizierung von automatischen Regelungen bei Größenrelation der Unsicherheiten

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Zusammenfassung

Betrachtet werden lineare zeitkontinuierliche Systeme mit unstrukturierten Unsicherheiten innerhalb einer speziellen direkten Matrixnorm. Die höchstzulässigen Unsicherheiten werden auf analytischem Weg hergeleitet und an gegebene Entwurfskriterien angeglichen. Keine überflüssigen Reserveannahmen werden benötigt. Ein Gradientenalgorithmus für den Regler wird vorgeschlagen, um die zulässigen Unsicherheiten in Bezug auf ihre Norm erhöhen zu können und so die gesamte Regelung zu robustifizieren.

Summary

The uncertainty of a linear continuous-time system is chosen unstructured by means of a specific direct matrix norm with given proportion interrelation. The maximum admissible uncertainties are derived analytically and the control system is tuned for a given design performance. No conservatism takes place. A gradient algorithm for the controller is suggested in order to increase the admissible uncertainty in norm sense and to robustify the control system.

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Weinmann, A. Robustification of control systems under uncertainty proportions. Elektrotech. Inftech. 127, 269–273 (2010). https://doi.org/10.1007/s00502-010-0773-7

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  • DOI: https://doi.org/10.1007/s00502-010-0773-7

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