シャ　キンカ   Jinhua She   佘　錦華    所属   工学部 機械工学科    職種   教授
言語種別	英語
発行・発表の年月	2018/01
形態種別	学術論文
査読	査読あり
標題	An Improved Equivalent-Input-Disturbance Approach for Repetitive Control System with State Delay and Disturbance
執筆形態	共著
掲載誌名	IEEE Transactions on Industrial Electronics
掲載区分	国外
出版社・発行元	IEEE
巻・号・頁	65(1),pp.521-531
担当範囲	ALL
著者・共著者	Pan Yu, Min Wu, Jinhua She, Kang-Zhi Liu, and Yosuke Nakanishi
概要	An improved equivalent-input-disturbance (EID) approach is devised to enhance the disturbance-rejection performance for a strictly proper plant with a state delay in a modified repetitive-control system. A gain factor is introduced to construct an improved EID estimator. This increases the flexibility of system design and enables the adjustment of the dynamical performance of disturbance rejection. Moreover, the commutative condition, which is widely used for the conventional EID estimator, is avoided. Thus, it reduces the conservativeness of design by removing the constraints imposed by the commutative condition. The system is divided into two subsystems, and the separation theorem is applied to simplify the design. For one subsystem, the delay information on both the modified repetitive controller and the plant is used to reduce the conservativeness of stability condition. The resulting linear matrix inequality (LMI) is used to find the gain of the state-feedback controller. Another LMI is derived to design the gains of the state observer and the improved EID estimator for the other subsystem. A case study on a metal-cutting system validates the superiority of the developed method.
外部リンクURL	http://ieeexplore.ieee.org/document/7951036/