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Reinforcement learning-based optimized backstepping fuzzy tracking control for flexible-joint robot systems

Guoxing Wen, Yan‐Jun Liu, Fusheng Yu, Jian Wu

Year
2025
Citations
2
Access
Open access

Abstract

针对非严格反馈结构下的柔性关节机器人系统, 本文提出了一种基于强化学习的简化模糊优化跟踪控制算法, 柔性关节机器人通过非严格反馈形式的四阶动态系统来描述, 采用模糊逻辑系统逼近未知函数, 并建立一个辅助自适应系统处理输入饱和问题. 基于 actor-critic 的简化强化学习算法设计模糊最优跟踪控制器. 此外, 采用非负函数的负梯度下降法, 而非贝尔曼残差误差平方法实现优化. 通过 Lyapunov 稳定性分析, 确保整个系统的半全局一致最终有界性. 仿真算法说明了基于强化学习的模糊跟踪控制策略的有效性.

Keywords

BacksteppingReinforcement learningComputer scienceJoint (building)Fuzzy logicFuzzy control systemControl (management)Control theory (sociology)Tracking (education)Artificial intelligence

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