Event-based PID control in a flexible manufacturing process

Duca, Octavian; Minca, Eugenia; Filipescu, Adrian; Șolea, Răzvan; Cernega, Daniela; Paun, Marius

doi:10.1109/icstcc55426.2022.9931787

Cited by 1 publication

(1 citation statement)

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“…This idea has attracted a great deal of research attention due to its appealing potential in reducing the communication loads among the different components of the system while maintaining satisfactory performance of the closed-loop system. In this context, the ETC has been widely investigated with different control techniques, such as the PID control [6][7][8], state-feedback [9,10], output-based control [11][12][13][14], model-free control [15][16][17], and the consensus of multi-agent systems [18][19][20]. Many developed ETC approaches rely on the continuous verification of the triggering condition to determine the subsequent transmission time; see [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Output-Based Dynamic Periodic Event-Triggered Control with Application to the Tunnel Diode System

Abdelrahim,

Almakhles

2023

JSAN

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The integration of communication channels with the feedback loop in a networked control system (NCS) is attractive for many applications. A major challenge in the NCS is to reduce transmissions over the network between the sensors, the controller, and the actuators to avoid network congestion. An efficient approach to achieving this goal is the event-triggered implementation where the control actions are only updated when necessary from stability/performance perspectives. In particular, periodic event-triggered control (PETC) has garnered recent attention because of its practical implementation advantages. This paper focuses on the design of stabilizing PETC for linear time-invariant systems. It is assumed that the plant state is partially known; the feedback signal is sent to the controller at discrete-time instants via a digital channel; and an event-triggered controller is synthesized, solely based on the available plant measurement. The constructed event-triggering law is novel and only verified at periodic time instants; it is more adapted to practical implementations. The proposed approach ensures a global asymptotic stability property for the closed-loop system under mild conditions. The overall model is developed as a hybrid dynamical system to truly describe the mixed continuous-time and discrete-time dynamics. The stability is studied using appropriate Lyapunov functions. The efficiency of the technique is illustrated in the dynamic model of the tunnel diode system.

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