Power Electronics Converters for the Internet of Energy: A Review

Granata, Samuele; Benedetto, Marco Di; Terlizzi, Cristina; Leuzzi, Riccardo; Bifaretti, Stefano; Zanchetta, Pericle

doi:10.3390/en15072604

Cited by 8 publications

(2 citation statements)

References 69 publications

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“…In the past few decades, power electronic converters have become essential devices in modern electrical networks [5]. These devices enable the integration of multiple distributed energy resources, such as renewable generation and energy storage systems, at all voltage levels in conventional power systems [6], [7].…”

Section: Introduction a General Contextmentioning

confidence: 99%

A Sensorless Inverse Optimal Control Plus Integral Action to Regulate the Output Voltage in a Boost Converter Supplying an Unknown DC Load

et al. 2023

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This study utilizes inverse optimal control (IOC) theory to address the issue of output voltage regulation in a boost converter feeding an unknown direct current (DC) load. The proposed approach involves developing a general feedback control law through IOC to ensure asymptotic stability in closed-loop operation, with the added advantage of incorporating an integral gain without compromising stability. Two estimators are introduced to minimize the number of sensors required for implementing the IOC controller with integral action. The first estimator, based on the immersion and invariance (I&I) method, determines the current demand of the DC load by measuring the boost converter's output voltage. While the second estimator, using the disturbance observer (DO) method, estimates the voltage input value by measuring the inductor's current flow. Both methods guarantee exponential convergence to the precise value of the estimated variable, irrespective of the initial estimation points. Experimental validation using varying DC loads and estimation techniques confirms the proposed IOC approach's effectiveness and robustness in regulating voltage for DC loads connected to a boost converter. Furthermore, the proposed controller is compared to the sliding mode control and presents a better performance with a more straightforward design, and the stability in closed-loop ensured.INDEX TERMS Inverse optimal control, sensorless control design, output voltage regulation, unknown DC load, disturbance observer estimator. NOMENCLATURE zVector that contains all the state variables. f (z) Vector of the soft nonlinear functions of the states.The associate editor coordinating the review of this manuscript and approving it for publication was Yinliang Xu .

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Section: Introduction a General Contextmentioning

confidence: 99%

A Sensorless Inverse Optimal Control Plus Integral Action to Regulate the Output Voltage in a Boost Converter Supplying an Unknown DC Load

et al. 2023

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“…The penetration rate of renewable energy and power electronic equipment has increased, forming a "double high" development trend [1]. The high transmission capacity requirement of converters also leads to problems in grid stability [2].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of the Transmission Capacity of Grid-Forming Converters and Grid-Following Converters

Kong¹,

Zhu²,

Wang³

et al. 2023

Energies

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The development trend of high shares of renewables and power electronics has increased the demand for new energy converters in the power system, but there is a lack of systematic research on the stability of different types of converters when transmitting power, which is worth exploring in depth. In this study, the power transfer capabilities of grid-forming and grid-following converters are investigated separately through an equivalent circuit diagram and phasor diagram when connected to the grid, and a quantitative relationship between converters’ power transmission limit and short circuit ratio under static stability conditions is obtained, leading to the conclusion that, in terms of power transmission, grid-forming converters are more suitable for weak grids with high damping and low inertia, whereas grid-following converters are more suitable for strong grids with high inertia. The conclusions are further verified by constructing the converter grid-connected models for different grid strengths through the PLECS simulation platform and the real-time simulation RTBOX1 and F28379D launchpad platform.

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AI-Enabled Modern Power Systems: Challenges, Solutions, and Recommendations

Shobeiry

2024

Power Systems

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Power Electronics Converters for the Internet of Energy: A Review

Cited by 8 publications

References 69 publications

A Sensorless Inverse Optimal Control Plus Integral Action to Regulate the Output Voltage in a Boost Converter Supplying an Unknown DC Load

A Sensorless Inverse Optimal Control Plus Integral Action to Regulate the Output Voltage in a Boost Converter Supplying an Unknown DC Load

Comparative Study of the Transmission Capacity of Grid-Forming Converters and Grid-Following Converters

AI-Enabled Modern Power Systems: Challenges, Solutions, and Recommendations

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