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題名: Robust Control of Discrete-Time Uncertain Stochastic Systems Subject to Mixed Performance
作者: Cheung-Chieh Ku
Rui-Wen Chen
Guan-Wei Chen
Wen-Jer Chang
貢獻者: 國立臺灣海洋大學:輪機工程學系
關鍵詞: mixed performance
stochastic systems
passivity theory
H_2 scheme
extended LMI
日期: 2018-10
上傳時間: 2020-01-06T06:03:28Z
出版者: Journal of Marine Science and Technology
摘要: abstract: This paper investigates a mixed H_2/Passivity performance control problem of uncertain stochastic systems. Based on Itô stochastic equation, the considered system is described by a linear difference equation with multiplicative noise term. To minimize output energy and guarantee asymptotical stability, the H_2 scheme is employed. Moreover, passivity theory is applied to constrain the effect of external disturbance on the system. According to the passivity theory, a general and flexible mixed performance controller design method is proposed. Based on Lyapunov function, some sufficient conditions are derived into extended Linear Matrix Inequality (LMI) form which reduces conservatism of finding the feasible solutions. Furthermore, the derived conditions can be directly solved by convex optimization algorithm to establish a controller such that asymptotical stability and mixed H_2/Passivity performance of the uncertain stochastic system are achieved. At last, an inverted pendulum system is used to show effectiveness and applicability of the proposed method.
關聯: 26(5) pp 648 - 656
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/52769
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