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Adaptive augmented interference-resisting fault tolerance method for aiming at active segment flight of vertical take-off and landing carrier

A vertical take-off and landing, adaptive gain technology, applied in the field of aircraft control

Active Publication Date: 2019-03-29
HARBIN INST OF TECH
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high-precision attitude stability control under the condition of engine servo mechanism failure and other internal and external interference conditions when the vertical take-off and landing reusable vehicle is flying in the active section, and provides an adaptive augmented anti-interference and fault-tolerant control method

Method used

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  • Adaptive augmented interference-resisting fault tolerance method for aiming at active segment flight of vertical take-off and landing carrier
  • Adaptive augmented interference-resisting fault tolerance method for aiming at active segment flight of vertical take-off and landing carrier
  • Adaptive augmented interference-resisting fault tolerance method for aiming at active segment flight of vertical take-off and landing carrier

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Embodiment 1

[0073] An adaptive augmentation anti-jamming and fault-tolerant method for the active flight of a vertical take-off and landing vehicle, characterized in that the method comprises:

[0074] Step 1. According to the small-disturbance linearization dynamic model of the active section of the vertical take-off and landing reusable vehicle, the transfer function model of the control system is obtained after Laplace transform, and then the pitch channel and yaw channel of the rocket are determined by the gain sequencing method and the PID control parameters of the rolling channel to obtain the PID controller;

[0075] Step 2. Determine the adaptive gain adjustment control law for the attitude error during the active flight of the vertical take-off and landing reusable vehicle and the elastic vibration signal obtained from the measurement, so as to adaptively adjust the static amplification factor of the basic controller (i.e. PID control P control parameters in the device);

[0076...

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Abstract

The invention provides an adaptive augmented interference-resisting fault tolerance method for aiming at active segment flight of a vertical take-off and landing carrier, wherein the method belongs tothe field of aerial vehicle control technology. The method comprises the steps of 1, designing a basic PID controller; 2, designing an adaptive gain regulating law; 3, executing an interference compensating algorithm; 4, executing an optimal control distributing algorithm; and 5, executing a quick fault detecting and adaptive fault tolerance control algorithm. The method can satisfy an actual flight control requirement and realizes simple control parameter designing and detailed control performance indexes for representing. Furthermore the method has advantages of higher robustness, higher adaptability, simpler control structure, etc.

Description

technical field [0001] The invention relates to an adaptive augmentation anti-disturbance and fault-tolerant method for active segment flight of a vertical take-off and landing carrier, and belongs to the technical field of aircraft control. Background technique [0002] There are many uncertain factors in the flight process of the vertical take-off and landing reusable launch vehicle during the active phase, such as the rocket’s flight altitude, flight speed, changes in atmospheric conditions, and internal structure interference of the rocket. There is a large degree of time variation and uncertainty; and the design of the attitude control system of a flexible rocket must consider the influence of elastic vibration of the rocket body, and the frequency of elastic vibration also has uncertainty; the actuator of the rocket is also prone to failure or failure And so on, so it can also be attributed to model uncertainties. These uncertain factors above will reduce the stabilit...

Claims

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Application Information

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IPC IPC(8): G05B13/04B64G1/24
CPCG05B13/042B64G1/24B64G1/247B64G1/245
Inventor 崔乃刚韦常柱张亮李源徐世昊
Owner HARBIN INST OF TECH
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