摘要
工作于距海平面20～30km高度的高空飞艇，虽然可以避免雨和暴风雪的影响，但依然受风和大气紊流的影响。为了克服这些外部扰动的影响，处于定点悬停阶段的高空飞艇，需要消耗大量的能量，而高空飞艇所能提供的能量是有限的，系统能耗将直接影响高空飞艇的负载能力和驻空时间。针对大气紊流对高空飞艇定点悬停阶段姿态调整的影响，利用内模控制设计原理具有通过设计内模，可以将扰动信号反馈到系统的输入端，由此便可以直接对扰动进行控制的特点，设计了高空飞艇纵向姿态控制器，仿真结果表明，所设计的内模控制器可有效地抑制大气紊流的影响。
High Altitude Airship （HAA） can remain stationary at an altitude of 20 -30 km above sea level for a long time, thus can avoid the influence of rains and storms, but winds and turbulence still exist. The power-limited HAA may consume a great amount of power to overcome the influence of winds and turbulence, and the power consumption of HAA has a direct influence on the payload carrying and stationkeeping capability. The paper introduces an internal-model control method to design HAA attitude control system. The perturbation signal is fed back to input end of the system and thus can control the perturbation directly. This method can effectively overcome the influence of turbulence to station-keeping attitude adjustment. The simulation results show that the designed controller is effective.
出处
《电光与控制》
北大核心
2009年第12期22-25,共4页
Electronics Optics & Control
基金
国防基础科研项目
关键词
高空飞艇
大气紊流
姿态控制
内模控制
high altitude airship
turbulence
attitude control
internal model control
