Semi-active optimal prediction control method for structure

A technology of optimal prediction and control methods, which is applied in the direction of adaptive control, general control system, control/regulation system, etc., and can solve problems such as the difficulty in determining the weighting function of the active controller
CN110865541AActive Publication Date: 2020-03-06MINJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MINJIANG UNIV
Publication Date
2020-03-06

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Abstract

The invention relates to a semi-active optimal prediction control method for a structure. The method comprises the steps of: introducing a gray prediction system to predict the input of an LQG controller, then carrying out optimization design of the parameters of the LQG controller through adoption of a whale optimization algorithm, and finally achieving the semi-active prediction control of the structure through combination with an adaptive neural fuzzy inference system. According to the method, the problem that the weighting function of the active controller is difficult to determine can beeffectively solved, the defect that the traditional LQG control effect is insufficient is overcome, and the control signal precision of an MR damper can be improved. Moreover, the time lag in the system can be effectively compensated through a prediction mechanism, so that the control system can give full play to the performance of a magneto-rheological damper, and finally, the purpose of effectively inhibiting the response of a building structure is achieved.
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Description

technical field

[0001] The invention relates to the technical field of anti-seismic design of civil structures, in particular to a semi-active optimal predictive control method for structures. Background technique

[0002] The quality of the seismic performance of civil structures is related to the safety of human life and property. How to improve the seismic performance of civil structures has always been a research hotspot in the field of engineering. Magneto-rheological damper is a promising intelligent semi-active control device, which combines the advantages of active control device and passive control device. The shock absorption technology of building structures based on it has become a research hotspot in the field of civil engineering. In order to make full use of the excellent damping characteristics of magnetorheological dampers, the research on semi-active control based on MR dampers still needs to be further deepened.

[0003] The linear quadratic Gaussian cont...

Claims

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