The invention relates to a spacecraft cluster attitude cooperative control method under an interference fault hybrid condition, and aims to solve the problem that the spacecraft cluster attitude cooperative control performance is reduced due to multi-source interference and actuator fault hybrid, and comprises the following steps: firstly, establishing a leader attitude model for a rigid spacecraft cluster system comprising a leader and a follower; establishing a follower attitude model containing an actuator fault and multi-source interference; secondly, a lag quantizer is introduced to quantize control input of a follower so as to reduce satellite-borne communication burden; thirdly, a distributed observer is designed, and the posture of the leader under the dynamic communication topology is estimated; and finally, a spacecraft attitude cooperative controller based on adaptive parameter identification is designed in combination with a distributed observer, and it is ensured that the attitude of the follower can track the attitude of the leader. According to the method, attitude cooperative control of the spacecraft cluster without continuous communication under the condition that interference and faults are mixed is achieved, and the method has the advantages of being high in robustness, low in energy consumption and easy to achieve in engineering.
本发明涉及一种干扰故障混杂情形下航天器集群姿态协同控制方法,针对多源干扰以及执行器故障混杂使得航天器集群姿态协同控制性能下降的问题,首先,针对包含领导者和跟随者的刚性航天器集群系统,建立领导者姿态模型,并建立含有执行器故障和多源干扰的跟随者姿态模型;其次,引入滞后量化器对跟随者的控制输入进行量化,以减轻星载通信负担;再次,设计分布式观测器,估计动态通信拓扑下领导者的姿态;最后,结合分布式观测器设计基于自适应参数辨识的航天器姿态协同控制器,确保跟随者的姿态能够跟踪上领导者的姿态。本发明实现了干扰和故障混杂情形下航天器集群无连续通信的姿态协同控制,具有较高鲁棒性、较低能耗、易于工程实现的特点。
Spacecraft cluster attitude cooperative control method under interference fault hybrid condition
一种干扰故障混杂情形下航天器集群姿态协同控制方法
2023-09-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B64G Raumfahrt , COSMONAUTICS |
Europäisches Patentamt | 2023
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