Application of collaborative optimization to optimal control problems

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[1] Li, Xiang
[2] Liu, Changan
[3] Li, Weiji
[4] Shang, Haibin
来源：
Li, X. (lixiang_0504@yahoo.com) | 1600年 / AIAA International卷 / 51期
关键词：
An alternative solution to optimal control problems using collaborative optimization (CO); an MDO method with decomposition strategy; is discussed. A collocation method is used for converting problem into a finite-dimensional nonlinear optimization problem. It is found that to avoid a high-dimensional system-level problem; CO tends to be most effective in weak-coupled problems; problems with few global variables; and the formulation of problem exactly satisfies this requirement. The results show that the objective value of CO is slightly smaller than that of the integrated solution; which is due to the allowed relaxed tolerance (10-5) of the system-level constraints. There are slight inconsistencies between the system-level target and the responses of the suboptimizations; which are also due to the relaxed tolerance in the system-level constraints;
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