Response of a Bidirectional EV Charger to Selected Grid Disturbances

A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and the electricity grid. As EVs proliferate throughout distribution grids over the coming years, understanding the performance of different EV cha...

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Published in2021 IEEE Industrial Electronics and Applications Conference (IEACon) pp. 157 - 162
Main Authors Haque, Md Mejbaul, Jones, Laura, Sturmberg, Bjorn C. P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 22.11.2021
Subjects
bidirectional EV charger
Europe
Frequency diversity
grid disturbance
grid simulator
Inverters
LVRT
Power grids
Power quality
RoCoF
Vehicle-to-grid
Voltage
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DOI10.1109/IEACon51066.2021.9654779

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Abstract A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and the electricity grid. As EVs proliferate throughout distribution grids over the coming years, understanding the performance of different EV chargers is important, especially during grid disturbances. In this paper, we demonstrate grid disturbances such as voltage sags and frequency variations using a grid simulator. These grid disturbances are applied to an off-the-shelf EV charger. Experimental results show that the operation of the EV charger is greatly affected by the grid disturbances. In some cases, the charger disconnects from the grid, disrupting grid services delivery.
AbstractList A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and the electricity grid. As EVs proliferate throughout distribution grids over the coming years, understanding the performance of different EV chargers is important, especially during grid disturbances. In this paper, we demonstrate grid disturbances such as voltage sags and frequency variations using a grid simulator. These grid disturbances are applied to an off-the-shelf EV charger. Experimental results show that the operation of the EV charger is greatly affected by the grid disturbances. In some cases, the charger disconnects from the grid, disrupting grid services delivery.
Author Haque, Md Mejbaul
Jones, Laura
Sturmberg, Bjorn C. P.
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  givenname: Laura
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  fullname: Sturmberg, Bjorn C. P.
  email: bjorn.sturmberg@anu.edu.au
  organization: The Australian National University,Research School of Engineering,Canberra,ACT,Australia,2601
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Snippet A bidirectional charger is a four-quadrant converter. It is a vital element that facilitates the energy exchange between electric vehicle (EV) batteries and...
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SubjectTerms bidirectional EV charger
Europe
Frequency diversity
grid disturbance
grid simulator
Inverters
LVRT
Power grids
Power quality
RoCoF
Vehicle-to-grid
Voltage
Title Response of a Bidirectional EV Charger to Selected Grid Disturbances
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