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Constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method

A stable control method and fractional-order technology, applied in the field of seismic exploration, to achieve the effects of ensuring safe operation, increasing design freedom, and accelerating convergence and stability

Active Publication Date: 2022-05-13
GUIZHOU UNIV
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  • Application Information

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Problems solved by technology

In the fractional-order domain, these works are no longer applicable, and there is a huge difference between a class of strict feedback systems and self-sustaining electromechanical seismograph systems with complex dynamics
Furthermore, the optimal energy cost of nonlinear systems has not been addressed in such literature

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  • Constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method
  • Constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method
  • Constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method

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Embodiment Construction

[0086] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0087] see Figure 1 to Figure 8 , is a constrained fractional-order self-sustaining electromechanical seismograph system accelerated stability control metho...

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Abstract

The invention relates to a constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method, which belongs to the field of seismic exploration. The method includes: S1: System modeling, establishing a mathematical model of the fractional-order self-sustaining electromechanical seismograph system according to Newton's second law and Kirchhoff's law, and defining constraints; S2: Designing an acceleration stabilization controller, including constructing an acceleration Feedforward controller and optimal feedback controller; acceleration feedforward controller is integrated by shaping behavior function based on fractional inversion method, fuzzy wavelet neural network and tracking differentiator; optimal feedback controller is integrated by fuzzy wavelet neural network and automatic Adapt to dynamic programming strategy fusion. The invention ensures the boundedness of all signals of the closed-loop system and ensures the safe operation of the system under the constraint conditions, and at the same time can suppress the chaotic oscillation and realize the minimization of the cost function.

Description

technical field [0001] The invention belongs to the field of seismic exploration and relates to a constrained fractional-order self-sustaining electromechanical seismograph system acceleration stability control method. Background technique [0002] The self-sustaining electromechanical seismograph system is an electromechanical sensitive instrument that can be used to detect ground vibrations induced by earthquakes. The nonlinear oscillation and chaotic dynamics of the seismograph system have a very important impact on its stable operation, and it is often necessary to meet the performance indicators in engineering applications. Therefore, it is a meaningful and challenging task to model fractional-order self-sustaining electromechanical seismograph systems in an optimal form, analyze dynamics, drive chaotic motions to periodic target trajectories, satisfy system safety constraints, and accelerate stability. Work. [0003] Over the past few decades, there have been sporadi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/24G05D19/02
CPCG01V1/242G05D19/02G01V1/182G01V1/164
Inventor 罗绍华李少波胡雪纯宋永端F.路易斯
Owner GUIZHOU UNIV
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