振動控制系統

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

107122838

專利證號

I 670924

專利獲證名稱

振動控制系統

專利所屬機關 (申請機關)

義守大學

獲證日期

2019/09/01

技術說明

振動追蹤控制系統通常包含估計器與控制器而加速度計為該系統普遍使用的偵測器。傳統的設計上，偵測到的加速度必須先被積分器積分成速度才能被回饋制控制系統中，如此系統才能追蹤參考命令而振動。有別於傳統設計，本申請專利提供一套直接使用加速度訊號而不用積分就能使結構系統追蹤隨時間變化之參考命令而振動或形變的完整設計方法。為了達到這個目標，能直接應用加速度的創新估計器及能直接應用狀態微分訊號的控制器都在第一申請人提出的新型倒數狀態空間架構下被設計出來。因為沒有使用積分器，此專利的方法相較於傳統的方法有諸多優勢，例如，系統複雜性較小，進而實作的費用較低且可靠性較高。所申請之專利對於控制可做為飛行器升力面及通訊天線的雙片壓電致動器的偏角度是很理想的，另外也很適合用於建築物主動防震系統中。 Vibrational tracking control systems usually consist of estimator and controller while acceleratormeter is the most popular sensor for such systems.Traditionally, acceleration measurements have to be integrated integrators to get velociety signals and then feeding them back to control system so that the structural vibrations or deformations can track the reference commands. Unlike the traditional designs, in this patent, we present a complete design methodology by solely utilizing direct acceleration measurements without integration such that system vibration can track given time varying reference command. To achieve that, an innovative estimator that directly applies acceleration measurement and a nontraditional controller that applies estimated state derivative signals have been developed in novel reciprocal state space (RSS) form proposed by the first patent applicant. Since no integrator is needed, our design has many advantages over traditional designs. For example, the system complexity is less, the implementation cost is lower, and reliability is higher. The proposed patent is ideal to control the deflections of piezoelectric bimorph benders which can be used as lifting surfaces and communication antennas of aerospace vehicles. Furthermore, it is also suitable for active quakeproof system of buildings.

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