Coordinated Volt-Var Control of Reconfigurable Microgrids with Power-to-Hydrogen Systems

Khalil Gholami; Ali Azizivahed; Ali Arefi; Li Li; Mohammad Arif; Md Haque

doi:10.3390/en17246442

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Coordinated Volt-Var Control of Reconfigurable Microgrids with Power-to-Hydrogen Systems

Journal article

Open access

Peer reviewed

Coordinated Volt-Var Control of Reconfigurable Microgrids with Power-to-Hydrogen Systems

Khalil Gholami, Ali Azizivahed, Ali Arefi, Li Li, Mohammad Arif and Md Haque

Energies (Basel), Vol.17(24), 6442

2024

DOI: https://doi.org/10.3390/en17246442

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Abstract

Volt-VAr control

electric vehicles

network reconfiguration

power-to-hydrogen

hydrogen-to-power

electrolyzer

fuel cell

The integration of electrolyzers and fuel cells can cause voltage fluctuations within microgrids if not properly scheduled. Therefore, controlling voltage and reactive power becomes crucial to mitigate the impact of fluctuating voltage levels, ensuring system stability and preventing damage to equipment. This paper, therefore, seeks to enhance voltage and reactive power control within reconfigurable microgrids in the presence of innovative power-to-hydrogen technologies via electrolyzers and hydrogen-to-power through fuel cells. Specifically, it focuses on the simultaneous coordination of an electrolyzer, hydrogen storage, and a fuel cell alongside on-load tap changers, smart photovoltaic inverters, renewable energy sources, diesel generators, and electric vehicle aggregation within the microgrid system. Additionally, dynamic network reconfiguration is employed to enhance microgrid flexibility and improve the overall system adaptability. Given the inherent unpredictability linked to resources, the unscented transformation method is employed to account for these uncertainties in the proposed voltage and reactive power management. Finally, the model is formulated as a convex optimization problem and is solved through GUROBI version 11, which leads to having a time-efficient model with high accuracy. To assess the effectiveness of the model, it is eventually examined on a modified 33-bus microgrid in several cases. Through the results of the under-study microgrid, the developed model is a great remedy for the simultaneous operation of diverse resources in reconfigurable microgrids with a flatter voltage profile across the microgrid.

Details

Title: Coordinated Volt-Var Control of Reconfigurable Microgrids with Power-to-Hydrogen Systems
Authors/Creators: Khalil Gholami - Deakin University
Ali Azizivahed - University of Technology Sydney
Ali Arefi - Murdoch University
Li Li - University of Technology Sydney
Mohammad Arif - Deakin University
Md Haque - Deakin University
Publication Details: Energies (Basel), Vol.17(24), 6442
Publisher: MDPI AG
Number of pages: 20
Identifiers: 991005726284507891
Murdoch Affiliation: Centre for Water, Energy and Waste
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 4 Electrical Engineering, Electronics & Computer Science; 4.18 Power Systems & Electric Vehicles; 4.18.204 Smart Grid Optimization
Web Of Science research areas: Energy & Fuels
ESI research areas: Engineering