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AssigneeSiemens Energy Global GmbH & Co. KG
InventorTilo Stach
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The invention relates to a method for operating a DC-DC converter for supplying an electrolysis device with electrical operating power, in which in a step at least four controllable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected downstream are controlled by a predetermined control signal sequence for direct conversion of an electrical input DC voltage into an electrical output DC voltage. At least two DC voltage converter units are used, each having four controllable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected downstream, the following steps being carried out: detecting a number of the DC voltage converter units, and adapting the control signal sequence to the detected number of DC voltage converter units.
A method for operating a DC-DC voltage converter for supplying an electrolysis device with electrical operating power wherein, in one step, at least four actuatable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected down-circuit are actuated by a predetermined actuation signal sequence for a direct conversion of a DC electric input voltage into a DC electric output voltage, characterized in that at least two DC voltage converter units are employed, each having four actuatable switching elements in the H-bridge arrangement with the interphase transformers connected down-circuit, incorporating the following steps:
A DC voltage converter for supplying an electrolysis device with electrical operating power, comprising at least four actuatable semiconductor switching elements in an H-bridge arrangement with interphase transformers connected down-circuit, wherein a control device of the DC voltage converter is configured to deliver a predefined actuation signal sequence to the at least four actuatable semiconductor switching elements for a direct conversion of a DC electric input voltage into a DC electric output voltage, characterized in that the DC voltage converter comprises at least two DC voltage converter units each having four actuatable semiconductor switching elements in the H-bridge arrangement with the interphase transformers connected down-circuit, wherein the control device of the DC voltage converter is configured to identify a number of DC voltage converter units and to adapt the actuation signal sequence to the number of DC voltage converter units identified, wherein the control device of the DC voltage converter is configured to adapt the actuation signal sequence by adapting a pulse frequency of the actuation signal sequence to the number of DC voltage converter units identified, and wherein the control device of the DC voltage converter is configured to adapt the pulse frequency of the actuation signal sequence by reducing the pule frequency according to the number of DC voltage converter units identified.
Dependencies are inferred from the claim text.