Event-triggered mechanism based dynamic quantized output feedback controller for networked control systems

He, Junda; Ma, Qiaoli; Guo, Jian; Zhou, Chuan

doi:10.1109/ccdc.2017.7978947

Cited by 5 publications

(5 citation statements)

References 14 publications

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“…The approach has attracted great research attention in the last few decades due to its superior performance in reducing the utilization of limited bandwidth of digital channels, see, for example, References [12][13][14][15][16][17][18][19][20], and the reference therein. Hence, ETC is well adapted for many control architectures, such as networked control systems, [21][22][23] cyber-physical systems, 24 multiagent systems, [25][26][27] robotics applications, 28,29 sensors networks, 30,31 and distributed control systems. 23,32,33 This paper is dedicated to the problem output feedback stabilization for bidirectional inductive WPT systems under ETC.…”

Section: Introductionmentioning

confidence: 99%

Optimal event‐triggered control for wireless power transfer system in electric vehicles

Abdelrahim,

Almakhles,

Mabrok

2024

Energy Science & Engineering

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This study focuses on stabilizing a bidirectional inductive wireless power transfer (WPT) system using an event‐triggered approach. It is only assumed the inductor currents on both the primary and pickup sides are measurable, and they are sent synchronously to the controller via a digital channel. To estimate the unmeasured states and maintain plant stability, a full‐order state observer and an observer‐based controller have been developed. The control parameters are optimized through a genetic algorithm to achieve the desired output response. An emulation methodology is then applied to create an output‐based event‐triggering condition. This condition ensures the stability of the closed‐loop system even in the presence of communication constraints. To prevent Zeno sampling, a minimal time interval between two transmissions is enforced using time‐regularization techniques. Furthermore, the performance of the event‐triggered controller is enhanced by solving a linear matrix inequality condition, which further reduces the number of transmission instances. The methodology offers a systematic and optimal design for the bidirectional inductive WPT system. It eliminates the need for manual tuning of control parameters, which is particularly beneficial given the system's complex nature. To address both continuous‐time and discrete‐time dynamics, the entire system is represented as a hybrid dynamical system, making it more intuitive for networked control systems. The efficiency of this approach is assessed through numerical simulations of a WPT system, demonstrating its effectiveness. The results show that the average intertransmission interval has been increased from 0.0799 to 0.1782 s, that is, the proposed event‐triggering strategy reduced the number of transmissions to more than 50% compared with conventional periodic sampling.

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Section: Introductionmentioning

confidence: 99%

Optimal event‐triggered control for wireless power transfer system in electric vehicles

Abdelrahim,

Almakhles,

Mabrok

2024

Energy Science & Engineering

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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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“…In literature [10], the structure of its system based on event-triggered scheme contains one quantizer, and the event-triggered release instants and interval are 74 and 84 while the sampling time is 10s. Comparing with [10], the method proposed in this article can save the network resources better. …”

Section: Remarkmentioning

confidence: 99%

“…In order to save network resources, some literatures have proposed time-triggered mechanism (such as [7][8][9]); this scheme transfers each sample data which reduces the utilization of network bandwidth. The eventtriggering mechanism proposed in the 1990s is more advantageous than the time-triggered scheme (see [10][11][12][13]), which means that the data will not be transmitted unless condition set in advance is satisfied, and then it will reduce the time of accessing network and save the network resources. In [14], the event-triggered scheme is applied to the fault detection to guarantee the fault detection accuracy.…”

Section: Introductionmentioning

confidence: 99%

“…In [4,27,28], the Markov process is applied to modeling the time delay, in [10,20], the time delay is used to describe the quantization density in the form of function and the authors investigate the dynamic quantization output feedback controller; in [10], the author also takes into account an event-triggered scheme to the aforementioned systems. Nevertheless, no article has considered a system with a dynamic output feedback controller and two quantizers based on event-triggered scheme.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Output Feedback Control of Discrete Markov Jump Systems based on Event-Triggered Mechanism

Zhao

Gao

Zhang

2018

Journal of Control Science and Engineering

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This paper is devoted to the co-design strategy of event-triggered scheme and dynamic output feedback controller for a class of discrete-time networked control systems (NCSs) with random time delay. An event-triggered mechanism is given to ease the information transmission. Both the sensor and controller are set with mode-dependent quantizers in the system. A Markov process is used to model the time delay which is used to describe the quantization density. By employing the Lyapunov-Krasovskii functional and linear matrix inequality (LMI), sufficient conditions are obtained for the system. A specific example is given to demonstrate the proposed approach.

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Event-triggered mechanism based dynamic quantized output feedback controller for networked control systems

Cited by 5 publications

References 14 publications

Optimal event‐triggered control for wireless power transfer system in electric vehicles

Optimal event‐triggered control for wireless power transfer system in electric vehicles

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

Dynamic Output Feedback Control of Discrete Markov Jump Systems based on Event-Triggered Mechanism

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