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arXiv 2201.06180eess.SYcs.AIcs.SYmath.OC
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非线性控制分配:一种基于学习的方法

Nonlinear Control Allocation: A Learning Based Approach

Centers of Excellence in Science and Applied Technologies(科学与应用技术卓越中心);Toronto Metropolitan University(多伦多都会大学);Institute of Space Technology(空间技术研究院)

Hafiz Zeeshan Iqbal Khan, Surrayya Mobeen, Jahanzeb Rajput, Jamshed Riaz

AI总结:

本文提出一种基于人工神经网络的非线性控制分配方法,通过学习控制效能映射的逆来替代在线优化,并给出闭环稳定性条件,以降低过驱动飞机的计算资源需求。

摘要:

现代飞机设计具有冗余控制效应器,以满足容错和机动性要求。这导致飞机处于过驱动状态,需要控制分配方案在控制效应器之间分配控制指令。传统上使用基于优化的控制分配方案;然而,对于非线性分配问题,这些方法需要大量的计算资源。本文提出了一种基于人工神经网络(ANN)的非线性控制分配方案。该方案首先通过ANN学习控制效能映射的逆,然后将其作为分配器实现,而不是求解在线优化问题。给出了包含该分配器的闭环系统的稳定性条件,并利用分段线性效能函数和基于ANN的分配器探讨了计算挑战。为证明所提方案的有效性,将其与标准的基于二次规划的控制分配方法进行了比较。

英文摘要:

Modern aircraft are designed with redundant control effectors to cater for fault tolerance and maneuverability requirements. This leads to aircraft being over-actuated and requires control allocation schemes to distribute the control commands among control effectors. Traditionally, optimization-based control allocation schemes are used; however, for nonlinear allocation problems, these methods require large computational resources. In this work, an artificial neural network (ANN) based nonlinear control allocation scheme is proposed. The proposed scheme is composed of learning the inverse of the control effectiveness map through ANN, and then implementing it as an allocator instead of solving an online optimization problem. Stability conditions are presented for closed-loop systems incorporating the allocator, and computational challenges are explored with piece-wise linear effectiveness functions and ANN-based allocators. To demonstrate the efficacy of the proposed scheme, it is compared with a standard quadratic programming-based method for control allocation.

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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