DLR-Based Reassessment of Continuous Current-Carrying Capacity for Improved RES Integration in Legacy HV Networks

The rapid growth of renewable energy sources (RES), particularly wind and photovoltaic generation, is placing increasing stress on existing high-voltage transmission networks that were not originally designed for highly variable and decentralised power injections. In Poland, many applications for new RES connections to the 110 kV network are currently rejected due to presumed thermal constraints of overhead lines, assessed using conservative Static Line