A control system and method for fixed-point dwelling of a stratospheric aerostat

A control system and aerostat technology, applied in the control/regulation system, attitude control, non-electric variable control and other directions, can solve the problem of lack of attitude control method in fixed-point stagnation, achieve simple design, small online calculation, easy-to-achieve effects

Active Publication Date: 2021-12-10
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

[0006] The present invention provides a control system and method for fixed-point dwelling of stratospheric aerostats, which solves the problems in the prior art such as the lack of attitude control methods for fixed-point dwelling

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  • A control system and method for fixed-point dwelling of a stratospheric aerostat

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Embodiment Construction

[0057] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0058] Considering the characteristics of the rotationally symmetrical aerostat and the convenience of calculation, it is assumed that the geographic coordinate system is [x g 、y g ,z g ], the corresponding posture is [Φ, θ, Ψ], the body coordinate system is [x, y, z], its origin is the volume center of the body, and the corresponding speed on the x-axis, y-axis, and z-axis is [u , v, w], and the corresponding angular velocity on the x-axis, y-axis, and z-axis is [p, q, r].

[0059] The present invention provides a control system for the fixed-point dwelling of the stratospheric aerostat, which realizes the adjustment of the variable center of mass of the whole system by adjusting the position of the double-mass slider, and then realizes the pitch and roll control of the aerostat. Then it is compounde...

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Abstract

The invention belongs to the technical field of automatic control, and discloses a control system for fixed-point parking of stratospheric aerostats. The modules are connected, the vector thrust composite module is connected with the nonlinear mapping module, the nonlinear mapping and pitch and roll control modules are connected with the main controller, the main controller is connected with the altitude keeping and attitude tracking module through the state measurement module, the altitude keeping module and the attitude The tracking module obtains the relationship between the target height and attitude and the tracking acceleration through the PID tracking algorithm. The vector thrust compound module and the pitch and roll control module obtain the tracking control force and slider position through the dynamic inverse method. The nonlinear mapping module converts the control force into The state measurement unit detects the current state of the aerostat and feeds it back to the altitude keeping and attitude tracking module to realize closed-loop control.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a control system and method for fixed-point dwelling of a stratospheric aerostat. Background technique [0002] Stratospheric aerostats fly at a height of 20,000 meters from the ground. As a fixed-point airborne platform, they have the characteristics of a larger observation range than low-altitude aircraft and higher resolution than orbiting satellites. They are suitable for Complete tasks such as communication relay and earth observation, and solar cells are the ideal energy source for long-term space. Therefore, attitude control is very important to enhance the output power of solar cells and improve the effect of earth observation. [0003] Stratospheric aerostats have complex control mechanism configurations: aerodynamic rudder surfaces, vector thrust, front / rear auxiliary airbags, etc. The stratospheric aerostat is a low-thrust-to-weight ratio aerosta...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/08G05D1/10
CPCG05D1/0808G05D1/101
Inventor 陈丽邓宇翔高其远马影
Owner SHANGHAI UNIV OF ENG SCI
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