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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Fuzzy-Logic-Based Robust Attitude Control of Networked Spacecraft via Event-Triggered Mechanism
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Fuzzy-Logic-Based Robust Attitude Control of Networked Spacecraft via Event-Triggered Mechanism

机译：基于模糊的逻辑通过事件触发机制对网络航天器的鲁棒态度控制

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This article studies the robust fuzzy attitude control strategy for the networked spacecraft consisting of physically independent modules that interact through network communication. The effects of inertia uncertainties, delayed feedback, actuator saturation, and external disturbances are simultaneously taken into account when designing the attitude control law. Based on aperiodic sampling, an adaptive event-triggered scheme avoiding Zeno phenomenon naturally is introduced to reduce the communication burden of network. By representing spacecraft kinematics and dynamics with Takagi-Sugeno fuzzy model, a robust fuzzy controller with $mathcal {L}_infty$-gain performance is newly developed to fulfill the attitude stabilization of networked spacecraft under complex constraints. Moreover, a novel Lyapunov functional is constructed to perform the stability analysis and controller synthesis of the resulting closed-loop system. The main results of this article are formulated in terms of linear matrix inequalities, which can be easily resolved by standard software. Finally, simulation results are presented to validate the effectiveness of the proposed attitude control strategy.
机译：本文研究了由网络通信互动的物理独立模块组成的网络航天器的强大模糊态度控制策略。在设计姿态控制法时，同时考虑了惯性不确定性，延迟反馈，执行器饱和度和外部干扰的影响。基于非周期性抽样，引入了一种自然避免ZENO现象的自适应事件触发方案，以减少网络的通信负担。通过代表与Takagi-sugeno模糊模型的航天器运动学和动态，新的强大的模糊控制器是新开发的，以满足复杂约束下网络航天器的态度稳定。此外，构建了一种新颖的Lyapunov功能，以执行所得闭环系统的稳定性分析和控制器合成。本文的主要结果在线性矩阵不等式方面配制，可以通过标准软件轻松解决。最后，提出了仿真结果以验证拟议的态度控制策略的有效性。

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