Set-point control method for air ship on constant-value wind interference stratosphere

Abstract

The invention discloses a set-point control method for an air ship on a constant-value wind interference stratosphere. The method comprises the following steps: calculating deflections between the axial positions and the vertical positions of a current position of the airship and a target point position by a plane geometry method according to the current position of the airship, the target point position of set-point hovering, the wind direction and the wind speed; then calculating the deflection of the current axial position of the airship by a classical PID method according to the axial position, the wind speed, the lateral position and the direction of wind interference, and calculating the flying speed deflection, the lateral position deflection and an included angle between the head of the airship and the wind direction according to the current flying speed of the airship; adjusting the axial position and the lateral position of the airship and the flying speed of the airship until the airship flies to the preset target position. According to the set-point control method, the influence of constant-value wind interference is considered; by the adoption of the classical PID structural design, propulsion and yaw control channels of a position retaining controller are realized; the set-point control method is easy to implement and stable in control performance.

Description

technical field [0001] The invention belongs to the field of automatic control of airships. The invention specifically relates to a fixed-point control method for a constant-value wind disturbance stratospheric airship. Background technique [0002] An airship is a lighter-than-air aircraft that belongs to the aerostat category. It does not rely on aerodynamic force to provide lift like traditional aircraft, but mainly relies on buoyancy to provide static lift, so it can fly at low speeds, and even maintain long-term stability in the air. Fixed-point suspension means that it is relatively stationary relative to the ground, which enables it to be used as a platform for long-term observation and communication. Whether the stratospheric airship platform can be realized depends on the length of time the airship stays in the air, that is, whether it can always maintain the desired position; when the stratospheric airship is hovering at a fixed point, the most important thing is ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a fixed-point control method for constant wind interference stratospheric airship, which solves the problem of airship fixed-point control wind interference

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