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arXiv 2602.09133math.OC
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融合混合整数二次MPC的迭代极限

Uniting Iteration Limits for Mixed-Integer Quadratic MPC

Department of Mechanical and Aerospace Engineering, University of Florida(机械与航空航天工程系,佛罗里达大学)

Luke Fina, Christopher Petersen

AI总结:

本文提出融合混合整数二次MPC的迭代限制方法,通过结合低高迭代限制MPC解决次优问题,理论推导稳定性并实证评估其在航天器对接中的应用。

摘要:

迭代限制的模型预测控制(MPC)可以在满足充分条件的情况下稳定反馈控制系统;本文探讨将低迭代限制MPC与高迭代限制MPC结合用于混合整数二次规划(MIQPs),其中次优性源于求解器迭代限制。为了结合两种MPC,开发了一种混合系统控制器,该控制器“融合”了两个MIQP-MPC求解器,其中感兴趣的迭代限制是分支定界和二次规划迭代限制。理论推导了混合反馈控制系统的渐近稳定性与鲁棒性。然后开发了可解释的分支定界算法和可实施的融合控制器算法。最后,在切换推进器和最小推力航天器对接问题的仿真中,对开发的算法和变化的迭代限制进行了实证评估。

英文摘要:

Iteration limited model predictive control (MPC) can stabilize a feedback control system under sufficient conditions; this work explores combining a low iteration limit MPC with a high iteration limit MPC for mixed-integer quadratic programs (MIQPs) where the suboptimality is due to solver iteration limits. To combine the two MPCs a hybrid systems controller is developed that ``unites'' two MIQP-MPC solvers where the iteration limits of interest are the branch-and-bound and quadratic programming iteration limits. Asymptotic stability and robustness of the hybrid feedback control system are theoretically derived. Then an interpretable branch-and-bound algorithm and implementable uniting controller algorithm are developed. Finally, the developed algorithms and varying iteration limits are empirically evaluated in simulation for the switching thruster and minimum thrust spacecraft rendezvous problems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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