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Event‐triggered control of input‐affine nonlinear interconnected systems using multiplayer game
International Journal of Robust and Nonlinear Control ( IF 3.2 ) Pub Date : 2020-11-12 , DOI: 10.1002/rnc.5321
Vignesh Narayanan 1 , Hamidreza Modares 2 , Sarangapani Jagannathan 3
Affiliation  

In this article, we present a decentralized control scheme for regulating input‐affine nonlinear interconnected systems. In particular, we propose a codesign strategy to synthesize a control policy and an event‐triggering threshold at each subsystem of an interconnected system to simultaneously optimize the subsystem performance and reduce the computational burden on the controllers by enforcing aperiodic dynamic feedback. To this end, we formulate a differential game at every subsystem to design a decentralized control scheme in which we treat the control policy as the minimizing player and model the effect of interconnection inputs and the error introduced due to aperiodic feedback as a team of adversarial players. We then employ the solution to the proposed game for designing both the control policy and the event‐triggering threshold at each subsystem. With the proposed approach, we also derive the conditions that guarantee the input‐to‐state stability of the overall system by leveraging the well‐known small‐gain theorem. Moreover, we show that these conditions, expressed in terms of the attenuation constants and penalty matrices introduced in the formulated game, are obtained as linear inequalities even when the dynamics of the subsystems are nonlinear. Finally, we illustrate the applicability of the proposed scheme to regulate interconnected systems using numerical examples.

中文翻译:

使用多人游戏对输入仿射非线性互连系统进行事件触发控制

在本文中,我们提出了用于控制输入仿射非线性互连系统的分散控制方案。特别是,我们提出了一种代码签名策略,用于在互连系统的每个子系统上综合控制策略和事件触发阈值,以通过优化非周期性动态反馈来同时优化子系统性能并减少控制器的计算负担。为此,我们在每个子系统上制定了一个差分博弈,以设计一种分散控制方案,在该方案中,我们将控制策略视为最小化参与者,并以对抗性参与者团队的形式对互连输入的影响以及由于非周期性反馈而引入的误差进行建模。然后,我们将所提出游戏的解决方案用于在每个子系统上设计控制策略和事件触发阈值。通过提出的方法,我们还利用众所周知的小增益定理推导了保证整个系统的输入至状态稳定性的条件。而且,我们表明,即使子系统的动力学是非线性的,这些条件也可以通过线性不等式获得,这些条件用公式化博弈中引入的衰减常数和罚矩阵表示。最后,我们使用数值示例说明了所提出的方案对互连系统进行调节的适用性。而且,我们表明,即使子系统的动力学是非线性的,这些条件也可以通过线性不等式获得,这些条件用公式化博弈中引入的衰减常数和罚矩阵表示。最后,我们使用数值示例说明了所提出的方案对互连系统进行调节的适用性。而且,我们表明,即使子系统的动力学是非线性的,这些条件也可以通过线性不等式获得,这些条件用公式化博弈中引入的衰减常数和罚矩阵表示。最后,我们使用数值示例说明了所提出的方案对互连系统进行调节的适用性。
更新日期:2021-01-13
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