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arXiv 2302.08601eess.SYcs.SY
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一类含参数不确定性的非线性系统的自适应安全关键控制:一种控制障碍函数方法

Adaptive Safety-Critical Control for a Class of Nonlinear Systems with Parametric Uncertainties: A Control Barrier Function Approach

Yujie Wang, Xiangru Xu

AI总结:

针对含参数不确定性的非线性系统安全控制问题,提出结合控制障碍函数与自适应律的方法,可无在线参数估计验证容许控制集非空,还通过数据驱动算法优化参数边界,经仿真验证有效。

摘要:

本文提出了一种针对漂移项和控制输入矩阵中均存在参数不确定性的系统进行安全控制设计的新方法。该方法将控制障碍函数与自适应律相结合,通过一个具有显式闭式解的非线性规划生成安全控制器。所提方法可在不依赖在线参数估计的情况下验证容许控制集的非空性,从而确保安全控制器无奇点。本文还开发了一种数据驱动算法,通过收紧未知参数的边界来提升所提控制器的性能。数值仿真验证了该控制方案的有效性。

英文摘要:

This paper presents a novel approach for the safe control design of systems with parametric uncertainties in both drift terms and control-input matrices. The method combines control barrier functions and adaptive laws to generate a safe controller through a nonlinear program with an explicitly given closed-form solution. The proposed approach verifies the non-emptiness of the admissible control set independently of online parameter estimations, which can ensure the safe controller is singularity-free. A data-driven algorithm is also developed to improve the performance of the proposed controller by tightening the bounds of the unknown parameters. The effectiveness of the control scheme is demonstrated through numerical simulations.

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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