The stability control of under-actuated direct connected dual body tethered satellite based on energy
For the attitude stability control problem of under-actuated direct connected dual body tethered satellite(UDBTS)system with disturbance effect of un-modeled dynamics,this paper proposes an energy controller based on the radial basis function(RBF)neural network compensation(ECNNC),which is used to finish the attitude stability control of UDBTS system.Firstly,for the known dynamics model of the UDBTS system,by constructing appropriate energy evaluation function separately,the energy based controller(EC)of dual body tethered satellite is derived,which is used to ensure that the attitude parameters of the UDBTS system are uniformly convergent.Secondly,the RBF neural network compensator is designed to offset the disturbance effect of un-modeled dynamics of UDBTS system.Finally,in order to evaluate the performance of ECNNC provided by this paper,the numerical simulations are given,and by comparing the results with that of EC and sliding mode controller(SMC),it is found that ECNNC proposed in this paper has better performance.
under-actuatedtethered satelliteneural networkenergyevaluation function
万方数据
维普
