US 12,230,964 B2
DC power supply device and railway substation incorporating it
Virgilio Valdivia, Getafe Madrid (ES); Ramón Vázquez, Valdemoro Madrid (ES); and Francisco Jose Moreno Muñoz, Bera Navarra (ES)
Assigned to SÉCHERON SA, Satigny (CH)
Appl. No. 18/263,803
Filed by SÉCHERON SA, Satigny (CH)
PCT Filed Feb. 1, 2022, PCT No. PCT/IB2022/050865
§ 371(c)(1), (2) Date Aug. 1, 2023,
PCT Pub. No. WO2022/175770, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 21158070 (EP), filed on Feb. 19, 2021.
Prior Publication US 2024/0120738 A1, Apr. 11, 2024
Int. Cl. H02J 3/16 (2006.01); B60L 7/00 (2006.01); H02M 7/5387 (2007.01)
CPC H02J 3/16 (2013.01) [H02M 7/53871 (2013.01); B60L 7/00 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A DC power supply device comprising:
a transformer having a primary side and a secondary side,
a diode rectifier connected at its input side to the secondary side of the transformer,
an inverter connected at its output side to the secondary side of the transformer, and
a controller arranged to control the inverter such that the inverter generates reactive power onto the secondary side of the transformer so as to regulate the DC voltage at the output side of the diode rectifier to a target value,
wherein the controller receives at its input side at least one DC signal outputted by the diode rectifier and uses said at least one DC signal to control the inverter.