Download Maschinenfabrik Reinhausen GmbH, PF 12 03 60 , 93025

Bauer, Markus
Phone +49 941 40 90-5241
Press/Communication
Fax +49 941 40 90-905241
[email protected]
www.reinhausen.com
March 2016
Greater energy flexibility and cost-effectiveness through use of
energy accumulators
Energy accumulators are an attractive solution in all situations where energy supply and consumption need to be made synchronous or asynchronous. In industrial grids especially, energy accumulators help to significantly cut energy costs. The GRIDCON® ACF ESS from Maschinenfabrik
Reinhausen (MR) is a perfectly matched combination of active filter and energy accumulator.
New technologies in the fields of converters, storage cells, and capacitors are making ever more
comprehensive and cost-effective forms of use possible.
In industrial and power-hungry environments in particular, what is known as peak shaving is reducing load peaks and therefore energy costs. Energy providers and commercial customers agree on
a price per kilowatt, which is mainly defined by the maximum load. The higher a peak load, the
higher the total annual energy costs – even if this load peak only occurs once. The more the maximum load can be reduced through peak shaving, the more energy costs can be saved. Energy
accumulators have a key role to play here. They take in energy when the load is below a defined
maximum load and release it before the load exceeds a certain limit. The energy accumulator's
charging process can be designed to suit the consumption pricing model. Case studies of industrial
peak shaving confirm the huge potential savings to be made from using energy accumulators.
With GRIDCON® ACF ESS, the energy accumulator is connected to the central control unit of the
active filter and parameterized and controlled with ease via the touch panel. The 3-level circuit is
based on twelve IGBTs. Using special circuitry, this provides high inverter voltages for connecting
batteries directly without additional converters. The system is designed for a connection voltage of
up to 480 V. Energy storage of up to 2.4 MWh is possible in one system with an output of 400 kW.
Considerably higher values are possible in an integrated network.
Maschinenfabrik Reinhausen GmbH
Falkensteinstraße 8
93059 Regensburg, Germany
Reinhausen Group
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The GRIDCON® ACF ESS has just as relevant a role to play in the integration of renewable energies through power leveling. Energy generated by the sun and wind can always be taken in if there
is not sufficient load for this energy to be consumed directly at that time.
This allows the energy provider to strike the best possible balance between volatile generation and
fixed feed-in requirements. This results in much greater integration and use of renewable energies
and cost savings for the operator because energy schedules can be observed with great accuracy.
The combination of reactive power compensation, active filter, and energy accumulator in ONE
system optimizes energy costs while also making optimum use of capacity and delivering very high
levels of process reliability. The tried and tested modular concept allows systems to be adapted to
specific applications and retrofitted.
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