Research On The Joint Simulation And Orbit Propulsion Control Of Solar Sail Satellite

In recent years,the rapid progress of space technology not only greatly promotes its large-scale application in military,scientific,and commercial fields,but also puts forward stringent requirements for the precise execution of its own tasks.In the aerospace technology,the low-thrust propulsion technology plays an important role in the accurate and stable control of spacecraft.At present,low-thrust propulsion technologies mainly include:electric propulsion,beam energy propulsion,solar sail propulsion,and micro propulsion.In particular,the solar sail propulsion technology does not need to consume any fuel,thus can significantly reduce the complexity and achieve stable and continuous operation of the system.This dissertation focuses on solar sail propulsion technology and includes the following:? Establish a joint simulation model of solar sail satellites.Firstly,the basic functions of the professional software—System Tool Kit(STK)—are briefly introduced.Secondly,a solar sail satellite model is constructed based on STK.Finally,the STK-MATLAB joint simulation is conducted.? Design the solar sail satellite orbital control scheme.Firstly,the solar sail model,the optical pressure thrust model,and the definition of the sun-synchronous displaced orbit are given.Secondly,the solar sail satellite orbital control scheme is designed.Finally,simulations are using both MATLAB and STK.? Propose the orbit maneuver optimal maneuvering strategies of hybrid low-thrust.First,the basic knowledge of hybrid low-thrust is introduced.Second,the perturbation equations of solar sail satellites and the optimal maneuvering strategies of orbit maneuver are given.Finally,on this basis,a hybrid low-thrust strategy is used to optimize the solar sail propulsion technology.The contributions of this dissertation include:the model of the solar sail satellite is built based on STK and MATLAB;the solar sail satellite transfers to the sun's synchronous suspension orbit by controlling the attitude of the sail surface,and the maximum suspension height that the solar sail satellite can maintain is calculated;The dynamic characteristics of hybrid propulsion technology in satellites entering geosynchronous orbit are analyzed.