Patent ID: 8441817

Claim:
An HVDC network, comprising: a first station comprising a first converter comprising non-extinguishable semiconducting elements; a second station comprising a second converter comprising non-extinguishable semiconducting elements, a first transmission conductor comprising a cable including a polymeric insulation and interconnecting the first converter with the second converter, and a second transmission conductor interconnecting the first converter with the second converter, wherein the first station further comprises a first switching arrangement and the second converter further comprises a second switching arrangement for alternating a direction of a power flow between the first and second transmission conductor, and wherein the first station further comprises a control unit for controlling the first switching arrangement and simultaneously controlling the second switching arrangement based on a desired direction of the power flow, the control unit comprising a first sensor at an AC network connection of the first converter and a second sensor at an AC network connection of the second converter for sensing the direction of the power flow.