论文部分内容阅读
基于改进的直接配点法,研究了有限推力最优交会控制问题。给出了有限推力交会的最优控制模型,将状态量和控制量离散化,节点间的状态量用五阶多项式表示,形成一系列代数约束,转化为一个非线性规划问题,用序列二次规划算法(SQP)求解参数最优化问题。对终端时刻自由的最省燃料交会问题的数值仿真结果表明:与直接配点法相比,改进配点法的精度较高。
Based on the improved direct collocation method, the optimal intersection control problem with limited thrust is studied. The optimal control model for finite thrust intersection is given. The state variables and control variables are discretized, and the state variables between nodes are represented by a fifth-order polynomial. A series of algebraic constraints are formed and transformed into a nonlinear programming problem. Planning Algorithm (SQP) Solving Parameter Optimization Problems. The numerical simulations of the most fuel-efficient rendezvous at the terminal moment show that the precision of the improved collocation method is higher than that of direct collocation method.