CPC H02H 7/268 (2013.01) [H02J 3/0073 (2020.01); H02J 3/36 (2013.01)] | 13 Claims |
1. A method for restoration of a fault isolation in a medium voltage, MV, network having a plurality of feeders and a plurality of normally open, NO, switches in parallel with MV direct current, DC, links, the method being performed in a control device of the MV network, and the method comprising:
closing at least two NO switches in parallel with MVDC links of the plurality of NO switches, being connected to a fault isolated feeder of the plurality of feeders of the MV network;
selecting which of the closed at least to NO switches in parallel with MVDC links not to open, wherein the selection is based on power flows through the closed at least two NO switches in parallel with MVDC links; and
opening the closed at least two NO switches in parallel with MVDC links except one.
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