Data-driven H controller tuning for sensitivity minimisation
by Tomoki Hori; Kazuhiro Yubai; Daisuke Yashiro; Satoshi Komada
International Journal of Advanced Mechatronic Systems (IJAMECHS), Vol. 7, No. 6, 2017

Abstract: By achieving low sensitivity, it is possible to suppress perturbations of a plant and disturbances. In model-based controller syntheses, the solution of sensitivity minimisation is analytically obtained through a mathematical model of a plant. However, a plant model which is enough accurate to design an appropriate controller is not always available. Moreover, if there exists a large uncertainly between a plant model and an actual plant, the designed controller might not show desired performance and at worst the system would be destabilised. This paper focuses on data-driven controller tuning methods because they require no plant model and skip system identification. The controller is designed or tuned by using only input/output data. This paper proposes a design method to achieve sensitivity minimisation, which is a typical controller synthesis problem in model-based approaches, by using only input/output data.

Online publication date: Mon, 22-Apr-2019

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