Non-Fragile Approach for Frequency Regulation in Power System With Event-Triggered Control and Communication Delays

Anand, Sumant; Dev, Ark; Sarkar, Mrinal Kanti; Banerjee, Subrata

doi:10.1109/tia.2021.3062774

Cited by 23 publications

(28 citation statements)

References 50 publications

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“…The block diagram of an ith area nonreheated power system is shown in Figure 1, with system parameters described in Table 1. In practice, the operating condition of the power system changes, leading to parameter uncertainty [21,22,32]. These mismatched parametric uncertainties can be expressed as ΔA i , ΔE ij , ΔB i , and ΔF i .…”

Section: Power System Modelingmentioning

confidence: 99%

“…Keeping (1) in mind, the aggregated uncertainties (matched as well as mismatched) model can be expressed as [21,22,32]…”

Section: Power System Modelingmentioning

confidence: 99%

“…The wind turbines may have a higher order dynamical frequency response, but a low-order dynamical model is sufficient for the study of frequency response [21][22][23][24][25].…”

Section: Wind Power Generationmentioning

confidence: 99%

“…The output power of the wind turbine generator (WTG) is usually uncertain because of weather conditions. As a result, the wind energy system has become more susceptible to disturbances (arising due to wind speed's uncertain nature) than traditional power systems [21][22][23][24][25]. Therefore, it is desired to design a controller that effectively operates in the presence of disturbances and uncertainties and also lowers the communication and computational burden on the communication channels.…”

Section: Introductionmentioning

confidence: 99%

“…A new event scheme for the LFC in power systems employing quantum genetic algorithm with global SMC and also considering time‐varying interval delays is reported in Lv et al [19]. An event condition based on the relationship between the ETC and the nonfragile system is reported in Anand et al [20]. The nonfragile control approach can tolerate controller parameter variations without any degradation in the system performance.…”

Section: Introductionmentioning

confidence: 99%

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Generalized proportional integral observer‐based event‐triggered control for frequency regulation in power systems with wind energy

Anand

Dev

Sarkar

2022

Asian Journal of Control

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The article addresses a generalized proportional-integral observer (GPIO)based event-triggered control (ETC) for load frequency problems in power systems with wind energy integration. The concept of static event-triggered mechanism (ETM) with a fixed threshold parameter may be unreasonable in some engineering applications where the transmission rates are time varying as in the case with power systems. Therefore, in this work, a dynamic ETM is designed to dynamically adjust the threshold parameters over time to reflect the time-varying transmission rates. The unmatched uncertainties are suppressed via high-gain design while the external disturbance (wind speed) is estimated and attenuated by the GPIO-based ETC. The proposed design ensures frequency and tie-line power stabilization and saves the computational and communication resources more effectively than recently reported works in the field. The hybrid closed-loop system's global bounded stability is theoretically proved and verified by simulation in three-area interconnected power systems. K E Y W O R D Sevent-triggered control (ETC), generalized proportional integral observer (GPIO), load frequency control (LFC), wind energy integration

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Section: Power System Modelingmentioning

confidence: 99%

“…Keeping (1) in mind, the aggregated uncertainties (matched as well as mismatched) model can be expressed as [21,22,32]…”

Section: Power System Modelingmentioning

confidence: 99%

“…The wind turbines may have a higher order dynamical frequency response, but a low-order dynamical model is sufficient for the study of frequency response [21][22][23][24][25].…”

Section: Wind Power Generationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Generalized proportional integral observer‐based event‐triggered control for frequency regulation in power systems with wind energy

Anand

Dev

Sarkar

2022

Asian Journal of Control

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Design and practical implementation of non‐fragile controller for non‐isolated on‐board battery charger for electric vehicle

Kumar,

Sarkar,

Kumar

2024

Circuit Theory & Apps

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SummaryThis paper proposes a non‐fragile control approach for a non‐isolated two‐switch buck‐boost converter used as an on‐board charger for electric vehicles. The control scheme is based on a cascaded two‐loop configuration with non‐fragile Proportional Integral controllers in the inner current and the outer voltage loop. The control approach is based on designing a control law that can stabilize the closed‐loop system subject to uncertainties in the controller parameters while satisfying the H∞ norm bound constraint on disturbance attenuation. The proposed control technique helps to deal with inevitable uncertainties during the implementation of any control scheme. The proposed control technique is compared with the conventional approach and validated through experimental results. The experimental results are obtained from a 1‐kW laboratory prototype of a TSBB converter with an output voltage range of 150–400 V. The results demonstrate that the proposed approach effectively achieves good robustness against controller parameter variations and disturbances under various operating conditions.

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Observer‐based non‐fragile event‐triggered control of extra‐corporeal blood circulation process in finite‐time interval

Arunkumar,

2023

Intl J Robust & Nonlinear

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An observer‐based event‐triggered non‐fragile control problem for regulating the levels of oxygen and carbon dioxide (O and CO) in patients blood during the extra‐corporeal blood circulation (ECC) process with random communication packet losses is explored in this work. The main intention of this work is to design an observer‐based event‐triggered and non‐fragile controller for ensuring the finite‐time boundedness criterion for the resulting system with mixed and passivity performance index over a finite interval of time. In addition to the limited bandwidth of the channels, such random packet losses might occur simultaneously between the sensors and the controllers, and between the controllers and the actuators. Unlike most studies in the literature, we have found that, since the controller‐actuator link has packet dropouts, the observer's control input differs from that of the plant. The sufficient conditions derived are presented in a linear matrix inequalities frame work. Finally, simulation results are used to validate the efficacy of the proposed control method. The results show that the proposed observer‐based event‐triggered non‐fragile controller keeps the blood gases within physiological limits during a stable ECC process.

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Non-Fragile Approach for Frequency Regulation in Power System With Event-Triggered Control and Communication Delays

Cited by 23 publications

References 50 publications

Generalized proportional integral observer‐based event‐triggered control for frequency regulation in power systems with wind energy

Generalized proportional integral observer‐based event‐triggered control for frequency regulation in power systems with wind energy

Design and practical implementation of non‐fragile controller for non‐isolated on‐board battery charger for electric vehicle

Observer‐based non‐fragile event‐triggered control of extra‐corporeal blood circulation process in finite‐time interval

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