DC power supply device and railway substation incorporating it
AssigneeSecheron SA
InventorsVirgilio Valdivia, Ramón Vázquez, Francisco Jose Moreno Muñoz
Life of this patent
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Abstract
Disclosed is a DC power supply device that includes: 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. The inverter is controlled by the controller to generate reactive power and/or harmonics 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. The controller receives at its input side at least one DC signal outputted by the diode rectifier and uses the at least one DC signal to control the inverter.
Claims23
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.
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 harmonics 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.
Dependencies are inferred from the claim text.