基于四元数反馈的卫星姿态控制系统仿真模型建立

Simulation Modeling of Satellite Attitude Control System Based on Quaternion Feedback

建立了完整卫星姿态控制系统仿真模型,在该模型中嵌入反作用轮和敏感器模型,使其能从部件级较真实地模拟卫星姿态控制系统。应用误差四元数反馈设计控制律,使控制器具备抗奇点性能,并证明了系统的渐进稳定性。实时仿真实验结果表明:所建立的仿真模型能较真实地反映卫星姿态控制系统的实时控制性能。

With the reaction wheel model and attitude sensor model being embedded in, the complete model of attitude control system is able to simulate the real Satellite Attitude Control System （SACS） at a component level. Quaternion feedback is employed for the control law design so that it enables the proposed controller to avoid singular position in numerical procedure. And the asymptotic stability was proved. As the real-time simulation experiments were made, it turned out that this simulation model can accurately perform as the SACS in real.