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arXiv 2602.24252eess.SYcs.SY
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神经Luenberger状态观测器用于非自治非线性系统

Neural Luenberger state observer for nonautonomous nonlinear systems

North Carolina State University(北卡罗来纳州立大学)

Moritz Woelk, Jarod Morris, Wentao Tang

AI总结:

本文提出了一种无需模型的状态观测器合成方法,通过数据训练神经网络实现非自治非线性系统的状态估计,理论证明了观测误差的有界性。

摘要:

本文提出了一种无需模型的状态观测器合成方法,其中观测器通过历史或仿真数据集进行离线训练。我们利用Kazantzis-Kravaris/Luenberger(KKL)观测器的结构,通过在线性时不变(LTI)观测器状态动力学中添加额外的输入仿射项,将其扩展到非自治系统。该输入仿射项决定了真实状态的非线性单射映射。输入仿射项和观测器状态到系统状态的非线性映射均通过全连接前馈多层感知机神经网络从数据中学习。此外,我们理论证明了训练后的神经网络在给定新的输入输出数据时,可以保证状态观测的误差界。为了验证所提观测器合成方法,进行了生物反应器和Williams-Otto反应器的案例研究。

英文摘要:

This work proposes a method for model-free synthesis of a state observer for nonlinear systems with manipulated inputs, where the observer is trained offline using a historical or simulation dataset of state measurements. We use the structure of the Kazantzis-Kravaris/Luenberger (KKL) observer, extended to nonautonomous systems by adding an additional input-affine term to the linear time-invariant (LTI) observer-state dynamics, which determines a nonlinear injective mapping of the true states. Both this input-affine term and the nonlinear mapping from the observer states to the system states are learned from data using fully connected feedforward multi-layer perceptron neural networks. Furthermore, we theoretically prove that trained neural networks, when given new input-output data, can be used to observe the states with a guaranteed error bound. To validate the proposed observer synthesis method, case studies are performed on a bioreactor and a Williams-Otto reactor.

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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