Active Control of Transmission Tower Under Stochastic Wind
學年 87
學期 1
出版（發表）日期 1998-11-01
作品名稱 Active Control of Transmission Tower Under Stochastic Wind
作品名稱（其他語言）
著者 吳重成; Wu, Jong-cheng; Yang, J. N.
單位 淡江大學土木工程學系
出版者 American Society of Civil Engineers (ASCE)
著錄名稱、卷期、頁數 Journal of structural engineering 124(11), pp.1302-1312
摘要 An active mass driver has been designed for installation on the upper observation deck of the 310 m Nanjing TV transmission tower in China in order to reduce the acceleration response under strong wind gusts. In this paper, the linear quadratic Gaussian (LQG), H∞, and continuous sliding mode control (CSMC) strategies have been applied to the active mass driver system based on the acceleration feedbacks. Emphasis is placed on the practical applications of LQG, H∞, and CSMC controllers, including limitations on the actuator peak force and stroke, the limited number of sensors, and noise pollution. Further, a method for modulating the control effort for the CSMC controller is proposed in this paper to satisfy the practical constraints on the actuator. A state reduced-order system has been established to design the dynamic output feedback controllers. The wind loads acting on the tower are defined by the Davenport cross-power spectral density matrix. Simulation results demonstrate that, when designed appropriately, the LQG, H∞, and CSMC control strategies are suitable for full-scale implementations of the active mass driver, and their control performances are quite remarkable.
關鍵字
語言 en
ISSN 0733-9445
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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