Download Siemens and Netze BW put smart grid solution

Siemens and Netze BW put smart grid solution
for the distribution network into operation
Siemens and Netze BW brought their joint project
“Network laboratory Niederstetten – distributed network
intelligence” in Niederstetten in Baden-Württemberg,
Germany, to a successful conclusion at the end of October
2015 with the start-up of an innovative automation solution for the primary distribution grid. The point of this
smart distribution network project is to find a solution
that will enable more distributed and renewable energy
sources to be integrated in the grid without jeopardizing
system stability, and that also allows greater utilization of
the existing cables’ capacity. Another aim is to detect and
localize system faults and restore networks more quickly.
The start-up marks the beginning of a one-year pilot
phase. Looking forward, the objective is to optimize the
technology so that the new grid automation solution can
be employed on a wide scale.
“As a distribution grid operator, our primary goal is to
enable the energy transition to a new energy mix at a reasonable cost and to help move it forward without compromising supply security. Today, distributed grid intelligence
is ensuring that the distribution grid in Niederstetten will
remain viable into the future, and that we will be able to
optimally use our existing grid infrastructure,” said Martin
Konermann, Technical Director at Netze BW.
Two medium-voltage in-phase regulators, including power
quality measurement on the primary and secondary side,
have been installed for long-range voltage control. The
voltage in the network lines is set by the medium-voltage
regulators to a level that satisfies the requirements of industrial consumers and allows electricity from distributed
Siemens AG
Energy Management Division
Transformers
Katzwanger Straße 150
90461 Nuremberg, Germany
Contact
Ronald Schmid
[email protected]
power generators to be fed in without restriction. The
voltage controllers receive their step commands from a
regional controller on the basis of the distributed-voltage
measurement in the medium-voltage power grid.
The northern supply region of the Niederstetten substation comprises two circuits with a total of 84 secondary
substations and long sections with medium-voltage overhead lines. About 45 percent of the cabling is buried underground. Distributed network intelligence has now
made it possible to feed other renewable energy sources
in the region into the grid without causing the voltage in
the dead-end feeders to rise as it did in the past. Another
plus point is that the power grid in the Niederstetten
region no longer reaches the limit of its loading capacity
as quickly as before and is fit for the further implementation of the energy transition.
Publisher and Copyright 2015:
Siemens AG
Energy Management Division
Freyeslebenstrasse 1
91058 Erlangen, Germany
siemens.com/transformers