Circuit assembly, electrolysis device, and method for operating a circuit assembly or an electrolysis device

Patent metadata

Field	Value
Publication number	US-11848602-B2
Application number	US-202017442795-A
Country	US
Kind code	B2
Filing date	Mar 26, 2020
Priority date	Apr 10, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

A circuit assembly includes at least one coil assembly with a first coil and a second coil, the first coil being connected to a DC voltage side of a rectifier of the circuit assembly, and the second coil being connected to a power source of the circuit assembly, the first coil and the second coil being coupled to each other via a coupling component of the coil assembly, the coupling component forming a core of each of the coils.

First claim

The invention claimed is:

1. An electrolysis device, comprising:
an electrolyzer,
a plurality of coil assemblies, each coil assembly comprising a first coil and a second coil,
a plurality of rectifiers,
wherein a first terminal of the first coil of each one of the plurality of coil assemblies is connected to a DC voltage side of one of the plurality of rectifiers, and a second terminal of the first coil of each one of the plurality of coil assemblies is connected to the electrolyzer,
wherein the second coil of each one of the plurality of coil assemblies are connected together in a series circuit with a current source,
wherein the first coil and the second coil of each coil assembly are coupled to one another via a coupling component that forms a core of each of the first and second coils of each coil assembly.

2. The electrolysis device as claimed in claim 1 ,
wherein the coupling component is an iron core.

3. The electrolysis device as claimed in claim 1 ,
wherein the second coil of each one of the coil assemblies has a higher winding count than the first coil of the coil assembly.

4. The electrolysis device as claimed in claim 1 ,
wherein the first coil of each one of the plurality of coil assemblies is connected to a different one of the plurality of rectifiers.

5. The electrolysis device as claimed in claim 1 ,
wherein one or both of the current source and one or more of the plurality of rectifiers is controllable.

6. The electrolysis device as claimed in claim 1 ,
wherein one or more of the plurality of rectifiers is connected on an AC voltage side to a secondary winding of at least one transformer of the electrolysis device.

7. A method for operating the electrolysis device as claimed in claim 1 , the method comprising:
the first coil and the second coil of at least one of the plurality of coil assemblies receiving currents in such a way that a magnetic flux generated by the second coil counteracts a magnetic flux generated by the first coil at least within the coupling component.

8. The method as claimed in claim 7 , further comprising:
a direct current generated by at least one of the plurality of rectifiers and a compensation direct current generated by the current source controlled on the basis of a common, relative setpoint current specification.

9. The electrolysis device as claimed in claim 2 ,
wherein the coupling component is designed in the form of a yoke.

10. The electrolysis device as claimed in claim 1 ,
wherein the current source comprises a rectifier.

11. The electrolysis device as claimed in claim 5 ,
wherein the rectifier is designed as one or both of a three-phase rectifier, and a B6 bridge rectifier.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Utz Peter

Classifications

• H02M1/40 Primary

  Means for preventing magnetic saturation · CPC title

• H01F29/14

  with variable magnetic bias ({amplitude modulation by means of variable impedance element H03C1/08} ; magnetic amplifiers H03F; {circuits for automatic telephonic communication H04M3/00}) · CPC title

• H02M1/12

  Arrangements for reducing harmonics from AC input or output · CPC title

• H02M7/06

  using discharge tubes without control electrode or semiconductor devices without control electrode · CPC title

• H02M7/219

  in a bridge configuration · CPC title