US 12,438,501 B2
Method for power control
Klaus Patzelt, Petershausen (DE)
Assigned to Siemens Mobility GmbH, Munich (DE)
Appl. No. 18/711,697
Filed by Siemens Mobility GmbH, Munich (DE)
PCT Filed Nov. 9, 2022, PCT No. PCT/EP2022/081229
§ 371(c)(1), (2) Date May 20, 2024,
PCT Pub. No. WO2023/094150, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 10 2021 213 231.6 (DE), filed on Nov. 24, 2021.
Prior Publication US 2025/0015754 A1, Jan. 9, 2025
Int. Cl. H02S 40/32 (2014.01); B61C 17/00 (2006.01); H02J 3/38 (2006.01); H02J 50/10 (2016.01); H02S 20/30 (2014.01)
CPC H02S 40/32 (2014.12) [B61C 17/00 (2013.01); H02J 3/38 (2013.01); H02J 50/10 (2016.02); H02S 20/30 (2014.12); H02J 2300/26 (2020.01)] 6 Claims
OG exemplary drawing
 
1. A method for controlling a transmission of power, the method comprising:
generating electrical power by a photovoltaic installation operated on an outer surface of a rail vehicle and passing the electrical power to a primary side of an inductive transformer;
passing the power from the primary side of the inductive transformer to a secondary side of the inductive transformer and from the secondary side of the inductive transformer to an electrical component inside the rail vehicle;
carrying out a power control necessary for the transmission of the electrical power between the photovoltaic installation and the electrical component on the secondary side;
carrying out the power control in such a way that a predetermined control target is achieved by the electrical component;
determining via the power control how much power is drawn from the secondary side of the transformer and supplied to the component;
using electrical parameters for the power control which are exclusively captured, tracked over time, and evaluated between the inductive transformer and the electrical component;
in a first step, determining a starting value of a power for a secondary-side draw of power at the inductive transformer;
in a second step, carrying out a check to determine whether the power demanded on the secondary side can be delivered by the primary side of the transformer;
wherein, if an output voltage of the inductive transformer collapses on the secondary side, which indicates that too little power is available on the primary side for transmission, a fifth step is carried out, as defined below;
wherein, if the output voltage of the inductive transformer does not collapse on the secondary side, which indicates that sufficient power is available on the primary side for transmission, a third step is carried out, as defined below;
in the third step, carrying out a check to determine whether the component is able to process an increased power, and when an increased power can be processed, carrying out a fourth step as defined below;
in the fourth step, determining the increased power and using the increased power as a new starting value, and restarting a step sequence starting with the second step above;
in the fifth step, reducing the secondary-side draw of power by, proceeding from a last-valid starting value, reducing the starting value and using the reduced starting value as a new starting value in order to then carry out the step sequence starting with the second step.