Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage

Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage

Future office buildings are expected to be integrated with energy intensive, inherently DC components such as photovoltaic panels (PV), electric vehicles (EV), LED lighting, and battery storage. This paper conceptualizes the interconnection of these components through a 750 V DC nanogrid as against...

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Bibliographic Details
Main Authors: Ilman Sulaeman, Gautham Ram Chandra Mouli, Aditya Shekhar, Pavol Bauer
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Energies
Subjects:
AC
DC
nanogrid
solar PV
electric vehicle
efficiency
Online Access:https://www.mdpi.com/1996-1073/14/18/5800
id doaj-e3c3b2d684204f9796e6d7d25eea5bbf
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spelling doaj-e3c3b2d684204f9796e6d7d25eea5bbf2021-09-26T00:05:15ZengMDPI AGEnergies1996-10732021-09-01145800580010.3390/en14185800Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery StorageIlman Sulaeman0Gautham Ram Chandra Mouli1Aditya Shekhar2Pavol Bauer3Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsElectrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsElectrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsElectrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsFuture office buildings are expected to be integrated with energy intensive, inherently DC components such as photovoltaic panels (PV), electric vehicles (EV), LED lighting, and battery storage. This paper conceptualizes the interconnection of these components through a 750 V DC nanogrid as against a conventional three-phase 400 V AC system. The factors influencing the performance of a DC-based nanogrid are identified and a comparative analysis with respect to a conventional AC nanogrid is presented in terms of efficiency, stability, and protection. It is proved how the minimization of grid energy exchange through power management is a vital system design choice. Secondly, the trade-off between stability, protection, and cost for sizing of the DC buffer capacitors is explored. The transient system response to different fault conditions for both AC and DC nanogrid is investigated. Finally the differences between the two systems in terms of various safety aspects are highlighted.https://www.mdpi.com/1996-1073/14/18/5800ACDCnanogridsolar PVelectric vehicleefficiency
collection DOAJ
language English
format Article
sources DOAJ
author Ilman Sulaeman
Gautham Ram Chandra Mouli
Aditya Shekhar
Pavol Bauer
spellingShingle Ilman Sulaeman
Gautham Ram Chandra Mouli
Aditya Shekhar
Pavol Bauer
Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
Energies
AC
DC
nanogrid
solar PV
electric vehicle
efficiency
author_facet Ilman Sulaeman
Gautham Ram Chandra Mouli
Aditya Shekhar
Pavol Bauer
author_sort Ilman Sulaeman
title Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
title_short Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
title_full Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
title_fullStr Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
title_full_unstemmed Comparison of AC and DC Nanogrid for Office Buildings with EV Charging, PV and Battery Storage
title_sort comparison of ac and dc nanogrid for office buildings with ev charging, pv and battery storage
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2021-09-01
description Future office buildings are expected to be integrated with energy intensive, inherently DC components such as photovoltaic panels (PV), electric vehicles (EV), LED lighting, and battery storage. This paper conceptualizes the interconnection of these components through a 750 V DC nanogrid as against a conventional three-phase 400 V AC system. The factors influencing the performance of a DC-based nanogrid are identified and a comparative analysis with respect to a conventional AC nanogrid is presented in terms of efficiency, stability, and protection. It is proved how the minimization of grid energy exchange through power management is a vital system design choice. Secondly, the trade-off between stability, protection, and cost for sizing of the DC buffer capacitors is explored. The transient system response to different fault conditions for both AC and DC nanogrid is investigated. Finally the differences between the two systems in terms of various safety aspects are highlighted.
topic AC
DC
nanogrid
solar PV
electric vehicle
efficiency
url https://www.mdpi.com/1996-1073/14/18/5800
work_keys_str_mv AT ilmansulaeman comparisonofacanddcnanogridforofficebuildingswithevchargingpvandbatterystorage
AT gauthamramchandramouli comparisonofacanddcnanogridforofficebuildingswithevchargingpvandbatterystorage
AT adityashekhar comparisonofacanddcnanogridforofficebuildingswithevchargingpvandbatterystorage
AT pavolbauer comparisonofacanddcnanogridforofficebuildingswithevchargingpvandbatterystorage
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