Operating experience and ways to improve reliability of Vyborg back-to-back HVDC link (in connection with the 35th anniversary of the commissioning of the first converter unit)

摘要

The Vyborg back-to-back HVDC link, providing asynchronous connection between power networks of Russia and Finland, is in operation since 1981. Vyborg converter substation includes four identical High Voltage Converter Units (HVCUs) rated at 355 MW each.