A study of composite moving-mass control for high-altitude aerostats

作者：Chen, Li^*; Yan, Xiaojuan; Zhou, Ge; Duan, Dengping

来源：Gaojishu Tongxin/Chinese High Technology Letters, 2012, 22(3): 289-293.

DOI：10.3772/j.issn.1002-0470.2012.03.010

• Aerodynamic control
• Composite control
• Generalized inverse
• High-altitude aerostat
• Moving mass control
• Vectored thrusts

The moving-mass control strategy was applied to a high-altitude aerostat, and a dynamic model for its moving-mass control was deduced, and correspondingly, the mass-moving mechanism for the control was given. The weighted generalized inverse (WGI) method was used to design a nonlinear composite controller for the high-altitude aerostat, with the actuator rate/position saturation being considered. The controller achieves actuator efficiency setting and fault recurring by choosing the weight of each implementing agency, and is able to redistribute the control variables using generalized inverse, thus achieves the control system reconfiguration. A certain composite control system combining the action of aerodynamic control surface, moving-mass, and vectored thrust was studied by simulation, and the simulation result of altitude tracking was given. The simulation showed that the weight generalized inverse obtained a good distribution and reconfiguration in the composite control, and kept the minimum control energy, thereby enhancing the reliability of the control system.

• 出版日期2012
• 单位上海交通大学