Research On Cooperative Control Of Micro-nano Satellite Swarm Based On Bionics

Microsatellites are widely used in the space field because of its low research and development cost,short design cycle and high functional density,and it can realize exceeding function of large platforms by forming swarm in cooperative tasks.The emergence of microsatellites swarm increase the pressure of measurement and control on the ground,the cooperative control of large-scale constellations is essential for the application of satellite swarm.The increasing number of satellite swarm has made higher demands on satellite cluster cooperative control in terms of intelligence,autonomy,adaptability and robustness.The biological swarm is ubiquitous in nature,and its behavior has been optimal with long-term evolution.To apply bio-swarm intelligent theory to satellite swarm tasks,the bio-swarm behavior mechanism is combined with satellite cluster cooperative control in this paper.The paper focuses on the bionic swarm motion model to simulate ordered behavior of biological swarm,the evaluation model and control strategy of the uniform distribution of the satellite swarm on the limited space surface to improve the efficiency of task,and the cooperative control simulation of bionics satellite swarm with orbital dynamics.Firstly,the research methods of microsatellite swarm cooperative control are studied,and the mapping relationship between biological swarm and spacecraft swarm is analyzed.According to the typical application of spacecraft clusters,the motion model to simulate biological cluster behavior is designed based on artificial potential field method.And the satellite swarm task efficiency analysis is carried out according to the simulation results.It is concluded that the ideal uniform distribution configuration can maximize the cluster space coverage.In order to realize the space uniform distribution of swarm,the advantages and disadvantages of traditional uniformity evaluation method is compared,combined with the surface boundary constraints of arbitrary boundary,the methods of exclusive ball theory and the potential function method are improved and with the combination of which,the uniformity measurement model is proposed.And the analysis of uniformity measurement effect of a simulation example is given,and the swarm distribution uniformity measurement result is used to guide the realization of uniform distribution,the coordinate simulation is given.Finally,the satellite swarm orbital dynamic simulation with bionic cluster control method is carried out in this paper.The detailed control parameter setting and simulation environment is given as well.The orbital drift of the uncontrolled relative motion with two body and J₂ perturbation is analyzed.,the simulation of the bionic cluster based on impulse thrust based on J₂ perturbation is given to verify the effectiveness of the bionic cluster control method.The Fuel consumption analysis is given out to verify the feasibility.According to the study above,the movement model of bionic micro-nano satellite cluster,the uniform distribution evaluation model and corresponding realization method is established;the simulation with orbital dynamics is verified.The coordinated control system of bionic micro-nano satellite swarm is established to provide thinking to the engineering application of satellite swarm.