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ＩＮＴＲＯＤＵＣＴＩＯＮＣｏｎｓｉｄｅｒａｂｌｅａｔｔｅｎｔｉｏｎｈａｓｂｅｅｎｆｏｃｕｓｅｄｏｎｔｈｅｃｏｎｔｒｏｌｐｒｏｂｌｅｍｏｆｕｎｃｅｒｔａｉｎｄｙｎａｍｉｃａｌｎｏｎ ｌｉｎｅａｒｓｙｓｔｅｍｓｓｕｂｊｅｃｔｔｏｅｘｔｅｒｎａｌｄｉｓｔｕｒｂａ 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｒｅｃｅｎｔｙｅａｒｓ,ｒｏｂｕｓｔｃｏｎｔｒｏｌｏｆｄｙｎａｍｉｃａｌｓｙｓｔｅｍｓｗｉｔｈｓｉｇｎｉｆｉｃａｎｔｕｎｃｅｒｔａｉｎｔｉｅｓｗａｓｗｉｄｅｌｙｒｅｓｅａｒｃｈｅｄ .Ｍａｎｙｎｅｗａｐｐｒｏａｃｈｅｓｈａｖｅｂｅｅｎｐｒｏｐｏｓｅｄｂａｓｅｄｏｎｓｏｍｅｄｅｓｉｒｅｄｐｅｒｆｏｒｍａｎｃｅｓ.ＴｈｅＬｙａｐｕｎｏｖｆｕｎｃｔｉｏｎｃｏｍｍｏｍｌｙｕｓｅｄｔｏｓｙｎ ｔｈｅｓｉｚｅｔｈｅｃｏｎｔｒｏｌｌｅｒ(Ｌｉ,1 996;Ｙａｌｌａｐｒａｇａｄａｅｔａｌ.,1 996… 相似文献
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An adaptive terminal sliding mode control (SMC) technique is proposed to deal with the tracking problem for a class of high-order
nonlinear dynamic systems. It is shown that a function augmented sliding hyperplane can be used to develop a new terminal
sliding mode for high-order nonlinear systems. A terminal SMC controller based on Lyapunov theory is designed to force the
state variables of the closed-loop system to reach and remain on the terminal sliding mode, so that the output tracking error
then converges to zero in finite time which can be set arbitrarily. An adaptive mechanism is introduced to estimate the unknown
parameters of the upper bounds of system uncertainties. The estimates are then used as controller parameters so that the effects
of uncertain dynamics can be eliminated. It is also shown that the stability of the closed-loop system can be guaranteed with
the proposed control strategy. The simulation of a numerical example is provided to show the effectiveness of the new method.
Project supported by the National Outstanding Youth Science Foundation of China (NSFC:69725005) and the Zhejiang, Provincial
Natural Science Key Foundation of China (ZD9905) 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＴｉｍｅ ｄｅｌａｙｓ,ｄｕｅｔｏｔｒａｎｓｐｏｒｔａｔｉｏｎｌａｇｓ,ｆｉ ｎｉｔｅｃａｌｃｕｌａｔｉｏｎｔｉｍｅｓ,ｍｅａｓｕｒｅｍｅｎｔｓｔｉｍｅｓ,ｅｔｃ.,ａｐｐｅａｒｉｎｎｕｍｅｒｏｕｓｉｎｄｕｓｔｒｉａｌａｎｄｎａｔｕｒａｌｐｒｏｃｅｓｓｅｓ,ｏｆｔｅｎｌｅａｄｉｎｇｔｏｏｓｃｉｌｌａｔｉｏｎｓａｎｄｓｏｍｅ ｔｉｍｅｓｉｎｓｔａｂｉｌｉｔｙ.Ｔｈｅｓｔａｂｉｌｉｔｙａｎｄｓｔａｂｉｌｉｚａｔｉｏｎｐｒｏｂｌｅｍｓｏｆｔｉｍｅ ｄｅｌａｙｓｙｓｔｅｍｓｗｉｔｈｏｒｗｉｔ… 相似文献
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INTRODUCTION Model predictive control (MPC), based on pre-dictive model and receding horizon optimization, has become an attractive feedback control strategy, be-cause it has found successful applications, especially in the process industry. For this kind of control strategy, the predictive model is a crucial component because the essence of MPC is to optimize the fore-cast of process behavior (Rawlings, 2000), and the forecast is accomplished with the predictive model. If the controll… 相似文献
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This paper presents a sliding mode (SM) based identifier to deal with the parameter identification problem for a class of
parameter uncertain nonlinear dynamic systems with input nonlinearity. A sliding mode controller (SMC) is used to ensure the
global reaching condition of the sliding mode for the nonlinear system; an identifier is designed to identify the uncertain
parameter of the nonlinear system. A numerical example is studied to show the feasibility of the SM controller and the asymptotical
convergence of the identifier.
Project supported by the National Natural Science Foundation of China(No. 69974035) and Zhejiang Provincial Natural Science
Key Foundation of China (ZD9905) 相似文献
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The main principle and the characteristic of Predictive Functional Control (PFC) strategy are presented in this paper and
the corresponding control system aid design software APC-PFC is also introduced. For a chlorinated polyethylene (CPE) process,
a design scheme of cascade predictive functional control system is described and the control performance is improved obviously.
Project (No. 69974035) supported by the National Natural Science Foundation of China 相似文献
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ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｒｅｃｅｎｔｙｅａｒｓ,ｗｉｔｈｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｃｏｍｐｕｔｅｒａｎｄｃｏｎｔｒｏｌｔｈｅｏｒｙ ,ｇａｉｎ ｓｃｈｅｄｕｌｉｎｇｉｓｗｉｄｅｌｙｕｓｅｄｉｎｍａｎｙａｐｐｌｉｃａｔｉｏｎｓ,ｓｕｃｈａｓｃｈｅｍ ｉｃａｌｅｎｇｉｎｅｅｒｉｎｇ,ａｉｒｃｒａｆｔｃｏｎｔｒｏｌｅｔｃ .(Ｓｈａｍｍａｅｔａｌ.,1 993;Ｗａｎｇｅｔａｌ. 1 995) .Ｈｏｗｅｖｅｒ,ｔｈｅｒｅａｒｅｍａｎｙｐｒｏｂｌｅｍｓ,ｓｕｃｈａｓｓｔａｂｉｌｉｔｙ,ｗｈｉｃｈａｒｅｓｔｉｌｌｎｏｔｓｏ… 相似文献