现代平流层飞艇要求飞艇能够安全、平稳地抵达平流层目标高度。首先分析了平流层飞艇高度控制与压差控制的关系, 然后针对平流层飞艇的特点提出了一种前馈式高度控制的方法。仿真结果表明,前馈式高度控制器具有一定的局限性, 不能同时满足高度和压差的控制目标。为此,提出了压差控制器以及两种解决高度控制器与压差控制器融合问题的方案, 最后的仿真结果表明, 限制高度控制权限的方案能保证飞艇安全平稳地到达目标高度。

The modern stratospheric airship is required to reach the altitude of stratosphere safely and smoothly.The relationship between the airships altitude control and pressure difference control was analyzed.According to the characteristics of stratospheric airships, a feedforward altitude control approach was proposed.The simulation results showed that the feedforward controller had some limitations, and couldnt meet the goals for altitude and pressure control.Thus we put forward a pressure difference controller, and two solutions to resolve the integration problem of altitude and pressure controller.The final simulation results make known that the scheme of restricting the altitude controllers authority can ensure the airship to reach the required altitude safely and stably.