The invention discloses a micro-nano satellite orbital transfer maneuvering section attitude compound control method. A micro-nano satellite orbital transfer maneuvering section attitude composite control method comprises the following steps: constructing a novel composite execution mechanism based on a zero momentum wheel train and a two-dimensional translation mechanism, and establishing and optimally considering an attitude rotation dynamics model and a sliding block translation dynamics model of inertia main shaft offset and additional disturbance torque; designing an index convergence interference observer to observe the thrust eccentric torque in real time; the method comprises the following steps: designing an attitude control loop MPC (Model Predictive Control) controller and a thrust eccentric torque compensation loop discrete PID (Proportional-Integrating-Digital) controller, and forming a double closed loop composite attitude control system. The control method can effectively observe the slow time-varying thrust eccentric torque, has the characteristics of high control precision, non-saturation of a momentum gear train and the like, and is suitable for long-term thrust eccentric disturbance in a micro-nano satellite orbital transfer maneuvering task.
本发明公开了一种微纳卫星变轨机动段姿态复合控制方法。一种微纳卫星变轨机动段姿态复合控制方法,包括:基于零动量轮系和二维平动机构构建一种新型复合执行机构,建立并优化考虑惯性主轴偏移与附加扰动力矩的姿态转动动力学和滑块平动动力学模型;设计指数收敛干扰观测器实时观测推力偏心力矩;设计姿态控制环MPC(Model Predictive Control)控制器和推力偏心力矩补偿环离散PID(Proportional‑Integral‑Derivative)控制器,构成双闭环复合姿态控制系统。该发明控制方法能有效观测慢时变的推力偏心力矩,具有控制精度高、动量轮系无饱和等特性,适用于微纳卫星变轨机动任务中的长期推力偏心扰动。
Micro-nano satellite orbital transfer maneuvering section attitude compound control method
一种微纳卫星变轨机动段姿态复合控制方法
2024-10-01
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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