【摘要】：衛(wèi)星設計是復雜的多學科優(yōu)化問題,協(xié)同優(yōu)化算法具有模塊化特點適合于處理多學科優(yōu)化問題。在對衛(wèi)星進行多學科優(yōu)化時發(fā)現(xiàn),現(xiàn)有的協(xié)同優(yōu)化算法為了保證共享變量在系統(tǒng)級和分系統(tǒng)級間的一致性,收斂困難,計算量大,不對分系統(tǒng)自身進行優(yōu)化不能保證衛(wèi)星整體性能最優(yōu)。本文通過引入Agent概念和基于Agent的協(xié)商算法,提出了一種基于勸說式多Agent協(xié)商的協(xié)同優(yōu)化設計算法。針對對地觀測衛(wèi)星,以總質(zhì)量最小為目標,建立了包含結(jié)構(gòu)、軌道控制、姿態(tài)控制和電源4個分系統(tǒng)Agent和1個系統(tǒng)級Agent的衛(wèi)星優(yōu)化設計模型并進行了協(xié)同優(yōu)化設計。研究結(jié)果表明:引入Agent協(xié)商算法的協(xié)同優(yōu)化算法,可以保證共享變量的一致性;在協(xié)同優(yōu)化算法中增加分系統(tǒng)自身優(yōu)化模塊,可以保證在系統(tǒng)級優(yōu)化過程中各分系統(tǒng)一直都是最優(yōu)的。
[Abstract]:Satellite design is a complex multidisciplinary optimization problem, and cooperative optimization algorithm is suitable for dealing with multidisciplinary optimization problem. In order to ensure the consistency of shared variables between system level and subsystem level, it is found that the existing cooperative optimization algorithms are difficult to converge and have a large amount of computation in order to ensure the consistency of shared variables between system level and sub-system level. Without optimizing the subsystem itself, the overall performance of the satellite can not be guaranteed to be optimal. By introducing the concept of Agent and the negotiation algorithm based on Agent, a collaborative optimization design algorithm based on persuasive multi-Agent negotiation is proposed in this paper. Aiming at the minimum total mass of Earth observation satellite, a satellite optimization design model with four subsystems, including structure, orbit control, attitude control and power supply, and a system-level Agent, is established and coordinated optimization design is carried out. The results show that the co-optimization algorithm with Agent negotiation algorithm can ensure the consistency of shared variables. Adding sub-system itself optimization module in cooperative optimization algorithm can ensure that each subsystem is always optimal in the process of system-level optimization.
【作者單位】： 北京航空航天大學宇航學院;中國飛行試驗研究院測試所;
【基金】：國防“973”計劃(613237)~~
【分類號】：V423.4

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