Wind power generation system including semiconductor transformer module and control method therefor

Patent metadata

Field	Value
Publication number	US-12374961-B2
Application number	US-202218288514-A
Country	US
Kind code	B2
Filing date	Mar 14, 2022
Priority date	Apr 30, 2021
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

Disclosed are a wind power generation system including a semiconductor transformer module in which a power conversion device and a transformer are integrally formed, and a control method therefor, and more particularly, a wind power generation system including a semiconductor transformer module and a control method therefor, the system including a rotating unit that is rotatable by wind power and a nacelle coupled to one side of the rotating unit, wherein the nacelle includes a generator and a semiconductor transformer module for converting input power of the generator into power of a higher voltage.

First claim

The invention claimed is:

1. A wind power system, comprising:
a rotating unit which can be rotated in a predetermined direction by wind power; and
a nacelle which is coupled to one side of the rotating unit,
wherein the nacelle comprises:
a generator which is coupled to a rotating shaft of the rotating unit to convert rotational energy of the rotating unit into electrical energy; and
a semiconductor transformer module which is electrically connected to the generator and receives input power from the generator and converts the input power into an output power; and

wherein the semiconductor transformer module is provided with a winding that is formed of a stranded wire, and
wherein the winding is formed of a litz wire.

2. The wind power system of claim 1 , wherein the output power is formed in a higher voltage than a voltage of the input power.

3. The wind power system of claim 1 , wherein the semiconductor transformer module comprises a plurality of semiconductor transformer modules; and
wherein the nacelle further comprises an enclosure in which a space for accommodating the plurality of semiconductor transformer modules is formed.

4. The wind power system of claim 3 , wherein the plurality of semiconductor transformer modules are arranged side by side along a transverse direction or longitudinal direction.

5. The wind power system of claim 4 , wherein the plurality of semiconductor transformer modules are arranged in a matrix form.

6. The wind power system of claim 4 , wherein the plurality of semiconductor transformer modules are disposed in any one of series and parallel, or a mixture of series and parallel relative to one another.

7. The wind power system of claim 3 , wherein a plurality of enclosures are provided, and
wherein the plurality of enclosures are arranged in a matrix form.

8. The wind power system of claim 3 , wherein the enclosure is made of a plurality of parts that can be disassembled or combined with each other, and the plurality of parts are assembled and manufactured.

9. The wind power system of claim 1 , wherein the semiconductor transformer module is provided with an iron core that is formed of a ferrite or nano-crystal material; and
wherein the winding winds about the iron core.

10. A method for controlling a wind power system, which is a method for controlling the wind power system according to claim 1 , the method comprising the steps of:
(a) starting a rotating operation of the rotating unit by wind power;
(b) transferring rotational energy of the rotating unit to the generator;
(c) producing electrical energy by the generator; and
(d) converting, by the semiconductor transformer module, production power of the generator into power of a higher voltage.

Assignees

• Ls Electric Co Ltd

Inventors

• Sim Jung Wook

Classifications

• H01F27/2823

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F27/24

  Magnetic cores · CPC title

• F03D9/25

  the apparatus being an electrical generator (F03D9/22 takes precedence) · CPC title

• F05B2240/221

  with horizontal axis · CPC title

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title