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基于网络同步的航天器编队飞行姿态控制方法

毕鹏;罗建军;张博;   

  1. 西北工业大学航天学院;
  • 出版日期:2010-02-25 发布日期:2010-02-25

Attitude Control Algorithm for Spacecraft Formation Flying Based on Network Synchronization

Bi Peng Luo Jianjun Zhang Bo(Northwestern Polytechnical University,Xi′an 710072)   

  • Online:2010-02-25 Published:2010-02-25

摘要: 航天器编队飞行需要协同控制系统进行统一的协调管理,以实现协同工作。文章将网络同步控制理论应用于航天器编队飞行姿态控制,以提高航天器编队飞行姿态控制的协同性。首先,采用修正的罗德里格斯参数描述航天器姿态动力学;然后,基于网络同步控制算法,设计航天器编队飞行的非线性姿态协同控制律;考虑成员航天器间姿态变化的差异,采用混合控制技术,设计航天器编队飞行混合控制策略。仿真结果验证了控制方法和控制律的有效性,并且相比单一反馈机制,混合控制具有更好的控制品质。

关键词: 协同控制, 编队飞行网络同步姿态控制航天器

Abstract: In order to achieve coordinated work,the control system of spacecraft formation flying required a unified cooperative management.To enhance the cooperativity of attitude control for spacecraft formation flying,the synchronization control theory of networks was applied toattitude control of spacecraft formation flying.First,the modified rodrigues parameters(MRP) were adopted to describe the attitude dynamics of spacecraft;then,the nonlinear attitude cooperative control law was designed for spacecraft formation flying based on synchronization control algorithm of networks.Considering the differences of attitude change between the member spacecrafts,a hybrid control strategy was designed for spacecraft formation flying using hybrid control techniques.Simulation results validate the effectivity of the control method and the control law,and the hybrid control has better control characteristics compared to single feedback mechanism.