A design method for robust stabilizing simple repetitive control systems

Kou Yamada; Hiroshi Takenaga; Hiroshi Tanaka

doi:10.1117/12.784175

7 January 2008 A design method for robust stabilizing simple repetitive control systems

Kou Yamada, Hiroshi Takenaga, Hiroshi Tanaka

Proceedings Volume 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials; 67940D (2008) https://doi.org/10.1117/12.784175
Event: ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 2007, Gifu, Japan

Abstract

The modified repetitive control system is a type of servomechanism for the periodic reference input. That is, the modified repetitive control system follows the periodic reference input with small steady state error, even if a periodic disturbance or uncertainty exists in the plant. Using previously proposed modified repetitive controllers, even if the plants does not includes time-delay, the transfer function from the periodic reference input to the output and that from the disturbance to the output have an infinite number of poles. When the transfer function from the periodic reference input to the output and that from the disturbance to the output have an infinite number of poles, it is difficult to specify the input-output characteristic and the disturbance attenuation characteristic. From the practical point of view, it is desirable that the input-output characteristic and the disturbance attenuation characteristic are easily specified. In order to specify the input-output characteristic and the disturbance attenuation characteristic easily, the transfer function from the periodic reference input to the output and that from the disturbance to the output are desirable to have a finite number of poles. Yamada et al. proposed the concept of simple repetitive control systems such that the controller works as a modified repetitive controller and the transfer function from the periodic reference input to the output and that from the disturbance to the output have a finite number of poles. In addition, Yamada et al. clarified the parametrization of all stabilizing simple repetitive controllers. However the method by Yamada et al. cannot be applied for the plant with uncertainty. The purpose of this paper is to propose the parametrization of all robust stabilizing simple repetitive controllers for the plant with uncertainty.

Citation Download Citation

Kou Yamada, Hiroshi Takenaga, and Hiroshi Tanaka "A design method for robust stabilizing simple repetitive control systems", Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 67940D (7 January 2008); https://doi.org/10.1117/12.784175

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