Wolmirstedt substation
The Wolmirstedt substation represents an important junction in the power grid of the new federal states and is the end point of the formerly longest power line in Germany, the 287.8 kilometer long 380 kV Lubmin – Wolmirstedt line.
history
The first German-German exchange of electrical energy was also carried out via the Wolmirstedt substation in the former GDR . On October 3, 1989, the 380 kV line from Helmstedt to Wolmirstedt went into operation. This line was the first section of the 380 kV connection between West Germany and the former West Berlin , but it did not go into operation until 1994, a year later than originally planned in the mid-1980s.
Since the power grids between the former GDR and the old Federal Republic were not synchronized with each other until 1993 (the FRG is a member of the UCPTE network , the GDR was then part of the Eastern European network VES / CENTREL ), the line that went into operation in 1989 only energy exchange can be carried out in so-called straightening mode .
Planned HVDC close coupling
However, a full bidirectional exchange of energy via an HVDC close coupling at the Wolmirstedt location was planned in the 1980s, and work began on this plant in early 1989, which was scheduled to go into operation in 1992. After the opening of the border, it was decided to synchronize the electricity grids of East and West Germany with each other in order to be able to do without expensive HVDC connections, which can represent a bottleneck in the transmission network due to the low overload capacity of the converters. For this reason, the construction of the Wolmirstedt HVDC close coupling, which would have been able to exchange 600 MW of electrical energy with an intermediate circuit voltage of 160 kV, was discontinued in April 1990. At this point in time, the converter hall (at 52 ° 16'21 "north latitude and 11 ° 38'10" east longitude) had already been completed in the shell. The noise protection wall to protect the residents of the Wolmirstedt district of Mose from the noise of the components of the HVDC system and the concrete path with track to the Wolmirstedt substation, via which the components should have been delivered, were also already completed.
In contrast to the HVDC close couplings in Etzenricht , Dürnrohr and Vienna , which were directly connected to the respective 380 kV networks on both sides, the HVDC short coupling Wolmirstedt was only supposed to be fed from the West German network with 380 kV. The connection to the East German extra-high voltage network was planned for the 220 kV voltage level, since the GDR’s 380 kV network was not very efficient at the time.
After the construction work was stopped, the converter hall was sold to a company for glass recycling because of the existing noise protection wall and is now part of the Farsleben recycling center . With the exception of the converter transformers for connecting the converters to the East German 220 kV network, for which there was no further use and which were scrapped, the system components intended for the construction of the HVDC short coupling were used for the construction of the HVDC short coupling in Etzenricht used.
See also
Web links
Coordinates: 52 ° 16 ′ 8 ″ N , 11 ° 38 ′ 24 ″ E