论文部分内容阅读
针对以往变速控制力矩陀螺(VSCMGs)加权操纵律存在增益调度与卫星姿态机动信息脱节的不足,设计一种VSCMGs改进增益调度操纵律.不同于以往VSCMGs加权操纵律仅通过奇异度进行增益调度,改进型操纵律采用奇异度结合误差四元数进行增益调度设计,能够根据卫星姿态机动信息进行增益调度,同时该操纵律通过添加零运动,实现规划CMGs框架角和转子转速收敛在标称值附近,避免转子转速饱和.仿真结果表明改进增益调度操纵律能够实现CMGs模式和RWs模式二者之间平滑切换,有利于实现大力矩输出和精细力矩输出.
A VSCMGs improved gain scheduling control law is designed to overcome the shortcomings of gain scheduling and discretization of satellite attitude maneuvering information in the previous VSCMGs weighted control law.Compared with the conventional VSCMGs weighting control law, The manipulative law adopts the singularity combined with the quaternion of error for gain scheduling design, and can perform gain scheduling according to the satellite attitude maneuvering information. At the same time, the manipulative law can achieve the convergence of the CMGs frame angle and rotor speed around the nominal value by adding zero motion, Avoiding the saturation of the rotor speed.The simulation results show that the improved gain scheduling law can achieve the smooth switching between CMGs mode and RWs mode, which is good for the output of large torque and fine torque.