About 38 results
https://drivepatents.com/patents/947821 · 9 Dec 2015
There is described a device for connecting an electric power generator to an HVDC transmission system (190, 290, 390, 490, 590, 690, 790), the device comprising (a) a first unit for converting an AC output voltage from the electric power generator to a DC ...
https://drivepatents.com/patents/948252 · 25 Nov 2015
A control circuit (30) comprises: first and second terminals (32,34) for connection to an electrical network (36,38); a current transmission path extending between the first and second terminals (32,34), the current transmission path including first and se...
https://drivepatents.com/patents/948365 · 7 Oct 2015
The invention relates to a high-voltage direct-current transmission line (1), comprising at least one or two or multiple conductors (2), wherein along at least one of the conductors (2) at least one extraction/feed-in point (P1 to Pz) is provided, at which...
https://drivepatents.com/patents/950063 · 15 Jul 2015
A power transmission network (100) comprises: a first power transmission medium (28); a first insulator or a plurality of first insulators arranged to provide insulation of the first power transmission medium (28) with respect to ground potential; and a co...
https://drivepatents.com/patents/950293 · 17 Jun 2015
In the field of high voltage direct current (HVDC) power transmission networks, a method of controlling a converter that includes at least one converter limb (12A, 12B, 12C) which corresponds to a respective phase of the converter, with the or each convert...
https://drivepatents.com/patents/950913 · 13 May 2015
This application relates to methods and apparatus for control apparatus of a voltage converter (401) for direct current transmission of electrical power over a transmission line (402). The control apparatus comprises regulation circuitry (403) for generati...
https://drivepatents.com/patents/951526 · 25 Mar 2015
A configurable power module (10; 80; 90; 140) comprises a first sub-module (12) which includes a first pair (18) of series-connected switching elements (20, 22) that are separated by a first connection terminal (24) and are connected in parallel with a fir...
https://drivepatents.com/patents/967632 · 5 Nov 2014
Disclosed is a HVDC valve tower. The HVDC valve tower includes cylindrical valve module loading part, a valve module loaded on the valve module loading part, and a crane disposed at a center of the valve module loading part to be rotatable.
https://drivepatents.com/patents/967594 · 5 Nov 2014
A voltage source converter (30) comprises: a converter limb (36) extending between first and second DC terminals (32,34) and having first and second limb portions (38,40) separated by an AC terminal (42), the first and second DC terminals (32,34) being con...
https://drivepatents.com/patents/970544 · 3 Sep 2014
The invention provides a converter (2a), and in particular a current source converter (CSC). The converter includes a bridge (14a) having an ac terminal (16a-16c) for each of one or more ac lines, and first and second dc terminals (18a, 18b). A converter a...