Dimensioning of battery storage as temporary equipment during grid reinforcement caused by electric vehicles

Abstract

Influence of EV charging on distribution gridsEV owner want to charge their car immediately after the purchase Distribution system officer should be informed when charging infrastructure is installed Grid expansion (3 -6 months duration) will be necessary in several distribution grids A stopgap measure has to be found to enable EV charging until grid expansion is completed Battery storage is one possibility Dimensioning of battery storage as temporary equipment during grid reinforcement caused by electric vehicles -Lukas Held 26.03.2020

The Influence of Electric Vehicle Charging on Low Voltage Grids with Characteristics Typical for Germany

“…In the future, actions by grid operators are necessary, as grid limits cannot be fulfilled for high penetrations of EVs. Besides grid expansion, the introduction of controlled charging [8] or the installation of battery storage [30] are promising solutions. Due to long planning and approval periods, required investments should be planned with a significant lead time.…”

Operation of Battery Storage as a Temporary Equipment During Grid Reinforcement Caused by Electric Vehicles

“…The results of [18] were used to dimension a central battery storage for the demonstration project. Two of the operation strategies that are developed in this paper, have been tested in reality in the project and the results are shown in Section 9.…”

“…In [18], the approach to dimension a central battery storage for this demonstration project is explained in detail. For better understanding, a summary is given here.…”

“…The used input profiles are described more detailed in [18]. To improve understanding, the basic approach is presented here.…”

“…In [17], a storage system was sized for different penetrations of EV to avoid undervoltages. In [18], a battery storage was dimensioned to decrease the peak power of a low voltage feeder under a given limit to avoid overloading.…”