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首页> 外文期刊>Mathematical Problems in Engineering >Coordinated Control of Pressure Difference and Rising Velocity for Stratospheric Airship with Thermal Effects
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Coordinated Control of Pressure Difference and Rising Velocity for Stratospheric Airship with Thermal Effects

机译：具有热效应的平流层飞艇压力差与上升速度的协调控制

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摘要

Ascending control of stratospheric airship is a challenging control problem, especially if both the rising velocity and the pressure difference between the inside and outside of the airship are required to be controlled simultaneously during ascending. In this paper, a coordinated scheme to control pressure difference and rising velocity of stratospheric airship with vector thrust is presented. With the control scheme, the airship maintains the pressure difference by exhausting air with feedback control. At the same time, the supplemental thrust is generated to compensate the buoyancy fluctuation caused by exhausting air so that the airship's vertical velocity can track a given reference trajectory. Simulations show that the coordinated control scheme ensures that the airship rises to the altitude of 20 km steadily and rapidly while the pressure difference is always in the safe range. Furthermore, the control scheme is robust enough to the thermal disturbance caused by solar radiation and other thermal processes, which is calculated with partial differential equations.
机译：平流层飞艇的上升控制是一个具有挑战性的控制问题，特别是如果在上升过程中需要同时控制飞艇内部和外部之间的上升速度和压力差。提出了一种利用矢量推力控制平流层飞艇压力差和上升速度的协调方案。通过控制方案，飞艇通过反馈控制排出空气来维持压力差。同时，产生辅助推力以补偿由于排出空气而引起的浮力波动，从而使飞艇的垂直速度可以跟踪给定的参考轨迹。仿真表明，协调控制方案可以保证飞艇稳定，快速上升到20 km的高度，而压差始终在安全范围内。此外，该控制方案对于由太阳辐射和其他热过程引起的热干扰足够鲁棒，这可以通过偏微分方程来计算。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第10期|923156.1-923156.11|共11页
  • 作者

    Hong Luhe; Jin Hui-Yu; Lin Xianwu; Lan Weiyao;

  • 作者单位

    Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China.;

    Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China.;

    Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China.;

    Xiamen Univ, Dept Automat, Xiamen 361005, Peoples R China.;

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