Self-adaptive fractional order sliding-mode control method

A fractional sliding mode and fractional sliding mode surface technology, applied in the field of adaptive fractional sliding mode control, can solve problems such as poor control effect and poor parameter estimation effect.

Inactive Publication Date: 2015-12-30
HOHAI UNIV CHANGZHOU
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Problems solved by technology

[0002] Usually, the design of sliding mode surface in sliding mode control adopts the combination of error ratio, integral and differential, in which...

Method used

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  • Self-adaptive fractional order sliding-mode control method
  • Self-adaptive fractional order sliding-mode control method
  • Self-adaptive fractional order sliding-mode control method

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Embodiment Construction

[0031] 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.

[0032] figure 1 is a schematic flow chart of an embodiment of the adaptive fractional-order sliding mode control method of the present invention, such as figure 1 shown, including:

[0033] S101, establishing a mathematical model and a reference model of the system.

[0034] Specifically, S101 includes steps:

[0035] S1011. Establish a mathematical model of the system as In the formula, X represents the actual trajectory of the system, A and B are the system ...

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Abstract

The invention discloses a self-adaptive fractional order sliding-mode control method. The self-adaptive fractional order sliding-mode control method comprises the following steps: building a mathematical model and a reference model of a system ; building a fractional order sliding-mode surface according to the mathematical model and the reference model of the system; designing a fractional order self-adaptive law according to the fractional order sliding-mode surface; designing a controlling force according to the fractional order sliding-mode surface and the fractional order self-adaptive law; verifying the stability of the designed self-adaptive fractional order sliding-mode control method on the basis of a Lyapunov function. The self-adaptive fractional order sliding-mode control method improves the control effect and the parameter estimation effect.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an adaptive fractional-order sliding mode control method. Background technique [0002] Usually, the design of sliding mode surface in sliding mode control adopts the combination of error ratio, integral and differential, and the order of integral and differential are integers, the control effect is relatively poor, and the effect of parameter estimation is also relatively poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an adaptive fractional-order sliding mode control method to improve the control effect and parameter estimation effect. [0004] In order to solve the above technical problems, the present invention provides an adaptive fractional-order sliding mode control method, comprising: [0005] Establish the mathematical model and reference model of the system; [0006] Establish a fractional ...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042G05B2219/39406
Inventor 卢成方韵梅费峻涛
Owner HOHAI UNIV CHANGZHOU
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