基于自调节有限时间预设性能函数的多智能体系统动态面状态约束量化控制
作者:
作者单位:

东北电力大学

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中图分类号:

TP273

基金项目:

吉林省科技发展计划项目


Dynamic surface state constrained quantized control for nonlinear multi-agent system with an adjustable finite-time prescribed performance function
Author:
Affiliation:

Northeast Electric Power University

Fund Project:

Science and Technology Project of Jilin Province

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    摘要:

    针对一类非线性多智能体系统,构建了一种基于自调节有限时间预设性能函数(AFPPF)的动态面状态约束量化控制策略。所提出的控制方案的主要特点为: 1)将自调节有限时间预设性能函数与屏障Lyapunov函数进行结合对多智能体系统的状态进行约束,所用函数能够根据系统当前跟踪误差自行调节自身参数而无需人为干预。 2)通过使用动态面控制方法,避免了传统反步控制方法的“微分爆炸”现象,并设计滤波补偿函数消除因引入动态面方法而产生的的滤波误差和信号振荡的问题。 3)使用RBF神经网络逼近系统中的未知非线性函数的同时,引入量化器减轻系统的通讯负担,并且所构建的量化方案仅在量化器具有扇形有界性质的条件下即可实现。通过稳定性分析证明了闭环系统内所有信号的半全局一致有界性。仿真环节验证了所提控制策略的有效性。

    Abstract:

    For a class of nonlinear multi-agent systems, an adaptive dynamic surface state constrained quantized control scheme with an adjustable finite-time prescribed performance function is investigated. The major properties of the proposed control scheme are: 1) The adjustable finite-time prescribed performance function is combined into the barrier Lyapunov function to constrain the states of the multi-agent system, the function introduced can adjust its own parameters according to the current tracking error of the system without manual intervention. 2) By using the dynamic surface control method, the "differential explosion" phenomenon of the traditional backstepping control method is avoided, and the filtered compensating function is designed to eliminate the filter error and signal chattering caused by the dynamic surface method. 3) The RBF neural network is utilized to approximate the unknown nonlinear functions in the system, and the quantizer is introduced to reduce the communication burden of the system. The constructed quantization scheme can be realized only if the quantizer has the sector bounded property. The semi-globally uniformly bounded of all signals in the closed-loop system is demonstrated by stability analysis. Simulation section verifies the effectiveness of the proposed state constrained quantized control strategy.

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  • 收稿日期:2022-07-09
  • 最后修改日期:2023-03-16
  • 录用日期:2022-10-10
  • 在线发布日期: 2022-10-22
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