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https://drivepatents.com/patents/995911 · 21 Nov 2012
Modular converter with energy storage capability comprising one or more phases, wherein each phase comprises a plurality of modules (2) connected in series, each one of said modules (2) having a H-bridge topology (3) connected in parallel to a capacitor (4...
https://drivepatents.com/patents/1000842 · 4 Jul 2012
The present invention discloses a method for controlling a back-to-back converter when disturbances are produced in the grid which limit the capacity of the converter (105) on the side of the grid to control the voltage of the DC stage (106). In that event...
https://drivepatents.com/patents/1002507 · 9 May 2012
Control method for converting power in which a DC voltage is converted into alternating voltage, a first alternating voltage (AC1) and a second alternating voltage (AC2) being obtained by means of a first inverter (1) and a second inverter (2) respectively...
https://drivepatents.com/patents/1011190 · 13 Jul 2011
The railway system has a DC voltage catenary (20) connected to a rectifier bridge block (40) that is in turn connected to a transformer (30) joined to a three-phase AC grid (10). The device (50) has a first DC/DC voltage raising block (51) connected betwee...