倾斜轨道电动力绳系卫星回收控制

Retrieval control of an electro-dynamic tethered satellite in an inclined orbit

Institute of Vibration Engineering Research, MOE Key Lab of Structure Mechanics and Control for Aircraft, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaInstitute of Vibration Engineering Research, MOE Key Lab of Structure Mechanics and Control for Aircraft, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaInstitute of Vibration Engineering Research, MOE Key Lab of Structure Mechanics and Control for Aircraft, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要: 考虑电动力影响，建立了倾斜轨道绳系卫星系统的动力学模型，研究了子星回收过程的非线性最优控制. 应用Legendre伪谱算法，将连续时间最优控制问题离散化，进而利用非线性规划方法进行求解，通过数值模拟验证了方法的有效性. 结果表明，在满足相关约束的条件下，通过调节系绳张力和电动力，可将子星回收到靠近主星的指定位置.
- 电动力绳系卫星 /
- 最优控制 /
- 伪谱算法
Abstract: This paper presents a nonlinear optimal control schemefor the three-dimensional retrieval process of an electrodynamic tetheredsatellite system in an inclined orbit. The Legendre pseudospectral algorithmis used to acquire an optimal trajectory to guide the subsatellite into afinal position close to the spaceship under mission-related constraints. Theoptimal control is discretized and solved with the nonlinear programming.The scheme is verified with the numerical simulation. The results shows thatthe control action is carried out by only adjusting the tensional andelectrodynamic forces in the tether.
- electro-dynamic tethered satellite /
- optimal control /
- pseudospectral algorithm