Vyborg HVDC-back-to-back station
Encyclopedia
The Vyborg HVDC scheme is a system of electricity transmission from the Russian power system
to Finland
.
) to Finland started in 1982. As the Russian and Finnish power systems are de-synchronized, a HVDC-back-to-back station was needed. It was decided to build the substation near Vyborg
in the Karelian ASSR. The first unit of the substation was commissioned in December 1981 followed by the second unit in the autumn 1982 and the third unit in the summer 1984. The system was manufactured by Ministry for Electrotechnical Industry of the USSR.
at 60°40′49"N 28°55′07"E. It is the only HVDC-back-to-back station in Russia. It is connected with the Russian and Finnish high-voltage power systems. The substation is connected to the Russian power system with two 330 kV lines to Vostochnaya substation and with one line to Kamenogorskaya substation. It is connected with Finland with three 400 kV cross-border connections to Yllikkälä (two lines) and Kymi (one line) substations.
The substation consist of three independent, parallel back-to-back units, each rated 355 MW and operating with a voltage of 85 kV. It has a transmission rate of 1420 MW, which makes it the world's largest HVDC-back-to-back facility. In contrast to most other HVDC plants, its static inverters do not allow bidirectional energy to transfer, but only from Russia to the power grid of Finland.
IPS/UPS
The IPS/UPS is a wide area synchronous transmission grid of some CIS countries with a common mode of operation and centralized supervisory control. It has an installed generation capacity of 300 gigawatts, and produces 1,200 terawatt-hours per year for its 280 million customers...
to Finland
Finland
Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...
.
History
The 400 kV electricity transmission from Russia (then the Soviet UnionSoviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
) to Finland started in 1982. As the Russian and Finnish power systems are de-synchronized, a HVDC-back-to-back station was needed. It was decided to build the substation near Vyborg
Vyborg
Vyborg is a town in Leningrad Oblast, Russia, situated on the Karelian Isthmus near the head of the Bay of Vyborg, to the northwest of St. Petersburg and south from Russia's border with Finland, where the Saimaa Canal enters the Gulf of Finland...
in the Karelian ASSR. The first unit of the substation was commissioned in December 1981 followed by the second unit in the autumn 1982 and the third unit in the summer 1984. The system was manufactured by Ministry for Electrotechnical Industry of the USSR.
Technical description
The Vyborg substation is located 9 kilometres (5.6 mi) east of VyborgVyborg
Vyborg is a town in Leningrad Oblast, Russia, situated on the Karelian Isthmus near the head of the Bay of Vyborg, to the northwest of St. Petersburg and south from Russia's border with Finland, where the Saimaa Canal enters the Gulf of Finland...
at 60°40′49"N 28°55′07"E. It is the only HVDC-back-to-back station in Russia. It is connected with the Russian and Finnish high-voltage power systems. The substation is connected to the Russian power system with two 330 kV lines to Vostochnaya substation and with one line to Kamenogorskaya substation. It is connected with Finland with three 400 kV cross-border connections to Yllikkälä (two lines) and Kymi (one line) substations.
The substation consist of three independent, parallel back-to-back units, each rated 355 MW and operating with a voltage of 85 kV. It has a transmission rate of 1420 MW, which makes it the world's largest HVDC-back-to-back facility. In contrast to most other HVDC plants, its static inverters do not allow bidirectional energy to transfer, but only from Russia to the power grid of Finland.
External links
- http://web.archive.org/web/20051115135709/www.transmission.bpa.gov/cigresc14/Compendium/Vyborg+Pictures.pdf