Off-Grid System Configurations for Coordinated Control of Renewable Energy Sources

Rezkallah, Miloud; Singh, Sanjeev; Chandra, Ambrish; Singh, Bhim; Ibrahim, Hussein

doi:10.3390/en13184950

Cited by 10 publications

(8 citation statements)

References 58 publications

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“…are the most promising systems to be exploited [2] . Nevertheless, they suffer from important disadvantages including the intermittent production of energy and the typical misalignment between availability and demand, which must be addressed with appropriate storage systems [3] . Energy storage and conversion devices are also increasingly required to support the growing electric vehicle market.…”

Section: Introductionmentioning

confidence: 99%

Interplay between Conductivity, Matrix Relaxations and Composition of Ca‐Polyoxyethylene Polymer Electrolytes

et al. 2021

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In this report, the conductivity mechanism of Ca 2 + -ion in polyoxyethylene (POE) solid polymer electrolytes (SPEs) for calcium secondary batteries is investigated by broadband electrical spectroscopy studies. SPEs are obtained by dissolving into the POE hosting matrix three different calcium salts: CaTf 2 , Ca(TFSI) 2 and CaI 2 . The investigation of the electric response of the synthetized SPEs reveals the presence in materials of two polarization phenomena and two dielectric relaxation events. It is demonstrated that the nature of the anion (i. e., steric hindrance, charge density and ability to act as coordination ligand) and the density of "dynamic crosslinks" of SPEs is fundamental in the establishment of ion-ion/ion-polymer interactions. The long-range charge migration processes occurring along the two revealed percolation pathways of the electrolytes are generally coupled with the polymer host dynamics and depend on the temperature and the anion nature. This study offers the needed tools for understanding Ca 2 + conduction in POE-based electrolytes.

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Section: Introductionmentioning

confidence: 99%

Interplay between Conductivity, Matrix Relaxations and Composition of Ca‐Polyoxyethylene Polymer Electrolytes

et al. 2021

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“…As a result, integrating the RESs for off-grid applications requires additional equipment such as power converters and accurate control. In this context, the authors in [1] present many off-grid solutions with a variable speed generator, and in [2], many redesigned off-grid solutions with fixed speed generators are recommended. One of the key characteristics of the off-grid designs presented in [1,2] is being able to use limited power converters.…”

Section: Introductionmentioning

confidence: 99%

Wind–PV–Battery Hybrid Off-Grid System: Control Design and Real-Time Testing

Rezkallah,

Chandra,

Ibrahim

2024

Clean Technol.

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The paper presents the design and implementation of decentralized control for a PV–wind–battery hybrid off-grid system with limited power electronics devices and sensors. To perform well without using any maximum power point tracking (MPPT) technique from the wind turbine (WT) based on a permanent-magnet brushless DC generator (PMBLDCG) and solar panels (PVs) and balance the power in the system, a cascade control structure strategy based on a linear active disturbance rejection controller (LADRC) is developed for the two-switch DC-DC buck-boost converter. Moreover, to ensure an uninterruptible power supply to the connected loads with a constant voltage and frequency, a cascade d-q control structure based on LADRC is developed for the interfacing single-phase inverter. Furthermore, the modeling and controller parameters design are presented. The performance under all operation conditions of the hybrid off-grid configuration and its decentralized control is validated by simulation using MATLAB/Simulink and in real-time using a small-scale hardware prototype.

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“…In remote places where expanding the public grid is difficult, there is an increasing need to create and execute economic power solutions to meet power burdens while simultaneously minimizing potential environmental repercussions [1]. Hybrid power systems cantered on biomass, photovoltaic, and wind, for example, are very interesting solutions with a lot of promise for satisfying the local demands of remote areas in a sustainable and effective way [2].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Voltage Regulation Control Strategy in a Stand-Alone Islanded DC Microgrid based on distributed Wind / Photovoltaic / Diesel / Energy Storage Hybrid Energy Conversion System

El-Gammal

Ramlal

2021

EJECE

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An adaptive approach for optimal tuning of a SMC for an automated voltage regulator system is displayed in this study. The approach is centered on hybrid of the GA and MOPSA. In addition, unique objective functions for the controller's parameter optimization are suggested. The performance of the resulting perfect sliding mode controller is confirmed by comparing it to controllers adjusted using various techniques that have been published in the literature. The simulation outcomes indicate that controllers tuned with the projected MOPSO and GA algorithms outperform controllers tuned with existing methods. In addition, a comparison study is performed to select the best controller for use in AVR systems. The suggested algorithm's major benefit is a considerable boost in convergence speed. With step changes and step load modifications in input wind power, the system model with built-in intelligent controller is generated in MATLAB/SIMULINK. The benefits of the recommended intelligent control algorithm are confirmed by comparing the outcomes of the sliding mode controller and the projected MOPSO self-tuned controller. The findings show that the hybrid Wind/PV system's reactive power adjustment capabilities. When used in conjunction with BES, it is extremely successful in optimising the voltage profile although providing active energy to local load.

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Off-Grid System Configurations for Coordinated Control of Renewable Energy Sources

Cited by 10 publications

References 58 publications

Interplay between Conductivity, Matrix Relaxations and Composition of Ca‐Polyoxyethylene Polymer Electrolytes

Interplay between Conductivity, Matrix Relaxations and Composition of Ca‐Polyoxyethylene Polymer Electrolytes

Wind–PV–Battery Hybrid Off-Grid System: Control Design and Real-Time Testing

Adaptive Voltage Regulation Control Strategy in a Stand-Alone Islanded DC Microgrid based on distributed Wind / Photovoltaic / Diesel / Energy Storage Hybrid Energy Conversion System

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