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Speed tracking control method for achieving stable flight of airship according to given speed

A technology of speed tracking and given speed, applied in the field of aircraft control, it can solve the problems of too conservative PID control law and slow response of speed tracking.

Active Publication Date: 2017-05-31
YANTAI NANSHAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the PID control law is mostly used for the speed control of the airship pitch channel, but the PID control law is too conservative, and the speed tracking response is slow

Method used

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  • Speed tracking control method for achieving stable flight of airship according to given speed
  • Speed tracking control method for achieving stable flight of airship according to given speed
  • Speed tracking control method for achieving stable flight of airship according to given speed

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Embodiment Construction

[0076] 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 making creative efforts belong to the protection scope of the present invention.

[0077] The present invention is a speed tracking control method for realizing the stable flight of a stratospheric airship according to a given speed. The gain item and the proportional control item, and then measure the pitch angle of the airship, the pitch angle rate and the vertical motion speed of the airship, and introduce the pitch rudder information of the airship, and use the adaptive control method to compensate the attitude movement of the airship pit...

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Abstract

The invention discloses a speed tracking control method for achieving a stable flight of an airship according to a given speed. The method comprises the steps of generating a forward flight velocity measurement and speed error signal; forming an error-based nonlinear gain entry; measuring a vertical velocity, a pitch angle and a pitch angle rate and building an adaptive term; designing an airship speed tracking control law; approximately simulating the characteristics of an airship pitching channel according to a mathematic model built by the differential equation of the airship pitching channel; and observing data of various states of the airship and drawing a picture by continuously adjusting control parameters, observing a data curve of a transverse flight speed of the airship and analyzing a response effect of constant-speed tracking control, thereby finally determining a group of airship control parameters, and enabling the speed tracking control of the airship to have satisfied dynamic response performance and steady-state response performance.

Description

technical field [0001] The invention belongs to the technical field of aircraft control, and relates to a speed tracking control method for realizing the stable flight of a stratospheric airship at a given speed. Background technique [0002] Because the stratosphere has stable meteorological conditions and good electromagnetic properties, people have been trying to use stratospheric platforms to stay in the sky for a long time for decades for observation and communication. With the rapid development of related technologies, since the 1990s, there has been an upsurge in the development of stratospheric airships in the world. From the perspective of the communication field, the airship has shorter round-trip delay and less free space attenuation than communication satellites, which is conducive to the miniaturization, broadband and symmetrical duplex wireless access of communication terminals; compared with the ground cellular system , the airship has a large operating dista...

Claims

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Application Information

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IPC IPC(8): G05D1/08G05D1/10
CPCG05D1/0808G05D1/101
Inventor 张友安雷军委刘震霆孙玉梅辛涛吴华丽
Owner YANTAI NANSHAN UNIV
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