The embodiment of the invention discloses a pneumatic attitude control method and system for a flat plate type configuration satellite. The method comprises the following steps: carrying out aerodynamic parameter modeling on a satellite to obtain 360-degree omnidirectional continuous aerodynamic parameters, and calculating the aerodynamic torque of the satellite in any attitude according to the aerodynamic parameters and the components of the aerodynamic torque generated by an incident flow on an incident flow area in a satellite coordinate; performing satellite aerodynamic configuration and counterweight design according to the aerodynamic moment to obtain an optimal pressure center and mass center vector distance, and obtaining a dominant aerodynamic moment according to the optimal pressure center and mass center vector distance; and establishing an environment disturbance torque model suffered by the satellite, and performing aerodynamic attitude control simulation in combination with the dominant aerodynamic torque. By establishing a pneumatic parameter model, the identification and application of the low-orbit satellite to the environment disturbance torque effect are improved; various environment moments are modeled with relatively high accuracy, and pneumatic passive attitude stability control is performed, so that energy on the satellite is saved, equipment configuration is simplified, and the reliability of in-orbit flight of the satellite is improved.
本发明实施例公开一种平板式构型卫星的气动姿态控制方法及系统。该方法包括对卫星进行气动参数建模获取360°全向连续的气动参数,并根据气动参数和入射流在迎流面积上产生的气动力矩在星体坐标中分量计算卫星在任意姿态下的气动力矩;根据气动力矩进行卫星气动构型及配重设计得到最佳压心质心矢距,并根据最佳压心质心矢距得到优势气动力矩;建立卫星所受的环境干扰力矩模型,并结合优势气动力矩进行气动姿态控制仿真。通过建立气动参数模型,提高了低轨卫星对环境干扰力矩作用的辨识及应用;通过以较高的准确度建模各项环境力矩,并进行气动被动姿态稳定控制,有利于节省星上能源,简化设备配置,提高卫星在轨飞行的可靠性。
Pneumatic attitude control method and system for flat plate type configuration satellite
一种平板式构型卫星的气动姿态控制方法及系统
2023-12-05
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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