机载风能系统自动抽水循环的参数空间在线轨迹优化

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Kwang-Hee Han, Ick-Ho Whang, Won-Sang Ra
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引用次数: 0

摘要

本文为机载风能系统(AWES)的轨迹优化提出了一种实用的优化算法。现有方法一般采用最优控制方法来处理模型的非线性和约束。然而,由于优化控制问题中存在动态约束,强非凸目标函数和众多决策变量增加了优化算法的复杂性和计算负担。为解决这一问题,我们提出了一种决策变量最小化的优化算法,该算法基于一个包含闭环飞行控制系统的高保真 AWES 模型。利用目标函数的凸性,应用卡鲁什-库恩-塔克(KKT)条件推导出最优条件。采用共轭梯度算法对决策变量进行更新。计算机模拟证实了所提算法在计算效率和求解精度方面的优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

On-line Trajectory Optimization in Parameter Space for Automatic Pumping Cycle of Airborne Wind Energy System

On-line Trajectory Optimization in Parameter Space for Automatic Pumping Cycle of Airborne Wind Energy System

This paper proposes a practical optimization algorithm for trajectory optimization in airborne wind energy system (AWES). Existing approaches generally implement optimal control approaches to handle model non-linearity and constraints. However, due to dynamic constraints in the optimal control problem, strongly non-convex objective function and numerous decision variables increase the complexity and computational burden of the optimization algorithm. To address this issue, an optimization algorithm with minimized decision variables is proposed based on a high-fidelity AWES model that incorporates a closed-loop flight control system. Utilizing the convex nature of the objective function, the Karush-Kuhn-Tucker (KKT) conditions are applied to derive optimality conditions. The decision variables are updated by a conjugate-descent algorithm with numerically approximated gradient. Computer simulations confirm the superiority of proposed algorithm in terms of computational efficiency and accuracy of the solution.

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来源期刊
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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