| 摘要 |
<p>An electrical power transmission network comprising a plurality of superconductive cable sections which are interconnected via connecting members. All cables have a certain inductance and a certain capacitance per length of unit. Therefore, a phase shift is introduced between current and voltage depending on the load, and this phase shift depends on the position along the cable. According to the invention, a phase compensation unit, e.g. a series inductance (6) or a universal power controller is arranged in each of the connecting members between the superconductive cable sections, said series inductance being e.g. cooled by means of the coolant which is used for the cooling of the superconductive cables. The invention further deals with an electrical power transmission network comprising a plurality of conventional cable sections, wherein the phase compensation unit comprises a superconducting coil or a universal power controller. Hereby, the phase compensation units along the cable may be made considerably smaller than known before and/or the compensation automated to dynamically keep the phase shift within a predetermined range.</p> |
