基于增益调度的变速控制力矩陀螺操纵律设计
发布时间：2018-10-18 10:28
【摘要】：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.
[Abstract]:In view of the shortcoming of the previous (VSCMGs) weighted control law of variable speed control torque gyroscope (VSCG), which is disjointed from the satellite attitude maneuver information, an improved VSCMGs gain scheduling control law is designed. Different from the previous VSCMGs weighted control law, the gain scheduling is only based on singularity. The improved control law uses singular degree combined with error quaternion to design the gain scheduling, and can schedule the gain according to satellite attitude maneuvering information. At the same time, by adding zero motion, the CMGs frame angle and rotor speed converge near the nominal value to avoid rotor speed saturation. The simulation results show that the improved gain scheduling control law can realize smooth switching between CMGs mode and RWs mode, which is conducive to the realization of large torque output and fine torque output.
【作者单位】： 北京控制工程研究所;空间智能控制技术国防重点实验室;
【基金】：国家杰出青年科学基金资助项目(61525301)
【分类号】：V448.22
本文编号：2278852
[Abstract]:In view of the shortcoming of the previous (VSCMGs) weighted control law of variable speed control torque gyroscope (VSCG), which is disjointed from the satellite attitude maneuver information, an improved VSCMGs gain scheduling control law is designed. Different from the previous VSCMGs weighted control law, the gain scheduling is only based on singularity. The improved control law uses singular degree combined with error quaternion to design the gain scheduling, and can schedule the gain according to satellite attitude maneuvering information. At the same time, by adding zero motion, the CMGs frame angle and rotor speed converge near the nominal value to avoid rotor speed saturation. The simulation results show that the improved gain scheduling control law can realize smooth switching between CMGs mode and RWs mode, which is conducive to the realization of large torque output and fine torque output.
【作者单位】： 北京控制工程研究所;空间智能控制技术国防重点实验室;
【基金】：国家杰出青年科学基金资助项目(61525301)
【分类号】：V448.22
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