Eberhard Waffenschmidt, Silvan Rummeny, Frank GŁnther, Paul Robert
"Islanding operation of a community power grid with renewable
energy sources and a large battery",
10th International 100% Renewable Energy Confernce (IRENEC
2020), Istanbul Turkey, 4. Jun. 2020, organized as online
To support a concept of a decentralized power grid, the Bordesholm
utility company (VBB) recently put a large battery into operation. It
has a total capacity of 15 MWh and a maximum power of 15 MW, of which
10 MW are registered for primary control operation.
However, the large battery is also capable of serving as a grid former
in island operation. This means that decentralised generators such as
photovoltaic (PV) plants (approx. 1.4 MWpk) and a biomass plant (2.4
MW) present there can continue to operate and feed in power.
In a trial in November 2019, the whole community of Bordesholm was supplied
with electricity for almost one hour only with the help of decentralised
renewable sources and the battery. The transition from interconnected
grid operation and the back-synchronisation took place seamlessly and
without electricity customers being able to notice the transitions.
> Paper pre-print: PDF-Dokument
> Presentation: PDF-Document
Voltage and current measurements when switching to islanding operation.