Modeling based on piecewise-linear system of hybrid system theory and control method

A control method, piecewise linear technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of control quantity jump, disturbance, even vibration, vibration, etc., to achieve the elimination of vibration, continuous and Discrete Control Synthesizes Optimal Effects

Inactive Publication Date: 2012-08-15
CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0007] The disadvantage of this control method is that it is likely to cause disturbance or even shock when the controller is switched, because at the moment of controller switching, the control

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  • Modeling based on piecewise-linear system of hybrid system theory and control method
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  • Modeling based on piecewise-linear system of hybrid system theory and control method

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] A kind of modeling and control method based on hybrid system of the present invention, its modeling process is as follows:

[0028] The general expression for a piecewise linear model is:

[0029] x ( k + 1 ) = A i x ( k ) + B i u ( k ) + ...

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Abstract

The invention discloses a modeling based on a piecewise-linear system of a hybrid system theory and a control method, and belongs to the field of automatic control. All segmented models of the piecewise linear system can be integrated in an uniform frame so as to accurately describe the interaction of a model switch event and a continuous dynamic process, thereby being beneficial to eliminating vibration caused by the model switch; and a linetype performance index is adopted to replace traditional quadratic performance index to forecast controller design, and an OPC (organic photoconductor) client end program independently developed by Matlab is utilized to realize the integration of mixed prediction control algorithm and a DCS (data communication system) control system.

Description

technical field [0001] The invention belongs to the field of automatic control and is used for modeling of a piecewise linear system and predictive control based on the model, in particular to a modeling and control method of a piecewise linear system based on a hybrid system theory. Background technique [0002] In the field of control theory and control engineering, people's main concern is how to control the variables of the system so that the whole system can achieve a specific goal (such as system stability, system tracking performance, etc.). Most of the control theories and methods proposed by scholars in the field of control are aimed at continuous variable dynamic systems. In the traditional control system design, people usually establish a linearized model of the controlled process near the work equilibrium point, and design a controller for the system according to the linear control theory. When the system works in the working range of the equilibrium point, the ...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 孙瑜
Owner CHANGSHU RES INSTITUE OF NANJING UNIV OF SCI & TECH
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