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A h-infinity control method for micro gyroscope based on lmi linear inequality

A technology of linear inequality and micro gyroscope, applied in the field of infinite control of micro gyroscope H, can solve the problems of system instability, low robustness, inconvenience, etc., and achieve improved dynamic characteristics and robustness, easy solution, Effect of reducing the influence of tracking error

Inactive Publication Date: 2018-02-02
HOHAI UNIV CHANGZHOU
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  • Abstract
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Problems solved by technology

However, the robustness of adaptive control to external disturbances is very low, and it is easy to make the system unstable.
[0005] This shows that above-mentioned existing gyroscope obviously still has inconvenience and defect in use, and needs to be further improved
In order to solve the problems existing in the use of existing gyroscopes, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time

Method used

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  • A h-infinity control method for micro gyroscope based on lmi linear inequality
  • A h-infinity control method for micro gyroscope based on lmi linear inequality
  • A h-infinity control method for micro gyroscope based on lmi linear inequality

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] figure 1 It is a schematic flow chart of an embodiment of the micro gyroscope H infinite control method based on the LMI linear inequality provided by the present invention, as figure 1 As shown, the embodiment of the present invention comprises steps:

[0025] S101. Establish an ideal dynamic model of the micro gyroscope.

[0026] Specifically, the S101 specifically includes:

[0027] S1011, establishing an ideal dynamic model of the micro gyroscope;

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Abstract

The invention discloses an LMI linear inequality-based micro gyroscope H-infinity control method. The method includes the following steps that: S101, the ideal dynamic model of a micro gyroscope is established; S104, a dimensionless vector model of the micro gyroscope is established; S103, a robust adaptive neural network H-infinity controller is designed based on an linear inequality according to the ideal dynamic model and the dimensionless vector model; and S104, a neural network weight adaptive law is designed based on based on the lyapnov stability theorem, so that the established controller can be updated online. The LMI linear inequality-based micro gyroscope H-infinity control method of the invention has the advantages of high robustness and high stability.

Description

technical field [0001] The invention relates to the technical field of micro-gyroscopes, in particular to an H-infinity control method for micro-gyroscopes based on LMI linear inequality. Background technique [0002] Micromechanical (MEMS Gyroscope) gyroscopes are inertial sensors processed by microelectronics and micromachining techniques to sense angular velocity. It detects angular velocity through a vibrating micromechanical component made of silicon, so the micromechanical gyroscope is very easy to miniaturize and mass-produce, and has the characteristics of low cost and small size. In recent years, micromachined gyroscopes have been paid close attention to in many applications, for example, gyroscopes combined with micromachined acceleration sensors for inertial navigation, image stabilization in digital cameras, wireless inertial mice for computers, and so on. However, due to the inevitable processing errors in the manufacturing process and the influence of ambient ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/04
Inventor 吴丹方韵梅费峻涛
Owner HOHAI UNIV CHANGZHOU
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