Circuit arrangement of electronic circuit breakers of a power generation device

• US 9,673,804 B2
• Filed: 07/13/2012
• Issued: 06/06/2017
• Est. Priority Date: 01/14/2010
• Status: Active Grant

• Current Assignee: KK Wind Solutions A/S (A.P. Møller Holding A/S)
• Original Assignee: Woodward Kempen GmbH (Woodward Incorporated)
• Inventors: Hbbers, Heiner, Hartmann, Eric
• Primary Examiner(s): LEE, PETE T
• Application Number:
  US13/548,765
• Publication Number:
  US 20120306213A1
• Time in Patent Office: 1,789 Days
• Field of Search: 361141, 361144, 361611, 361637, 174254
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H03K 17/16 Modifications for eliminating interference voltages or currents
• CPC Class Codes: H05K 7/14329 specially adapted for the configuration of power bus bars

Abstract

The invention relates to a circuit arrangement with an electronic power switch, a capacitor and a plate-shaped direct current laminate. The direct current laminate includes two metal plates insulated from one another for carrying current and multiple connection elements arranged so to electrically connect the metal plates to the capacitor. The capacitor is electrically connected by the connection elements to the direct current laminate, and the capacitor is on one side of the direct current laminate. This circuit arrangement has a significantly reduced space requirement and simultaneously improved scalability. This is achieved because the direct current laminate additionally has multiple connection elements arranged so to connect the direct current laminate to the electronic power switch of the circuit arrangement. The electronic power switch is electrically connected by the connection elements to the direct current laminate and is arranged on the opposing side of the direct current laminate.

Claims

1. A circuit arrangement comprising at least one electronic power switch, at least one capacitor and a plate-shaped direct current laminate, the direct current laminate having at least two metal plates insulated from one another for carrying current and a plurality of connection elements arranged at a first spacing to electrically connect the metal plates to the at least one capacitor, the at least one capacitor being electrically conductively connected by the connection elements arranged at the first spacing to the direct current laminate and the at least one capacitor being arranged on one side of the direct current laminate, wherein the direct current laminate additionally has a plurality of connection elements arranged at a second spacing to connect the direct current laminate to at least one electronic power switch of the circuit arrangement, in that at least one electronic power switch is electrically connected by the connection elements arranged at the second spacing to the direct current laminate and is arranged on the opposing side of the direct current laminate, wherein at least one adapter laminate is provided to connect the electronic power switches, the adapter laminate having connection elements adapted to the electronic power switches on one connection side and having connection elements adapted to the second spacing on the other connection side and wherein an entirety of the adapter laminate comprises only two current carrying layers and wherein the electronic power switches arranged on one side of the direct current laminate at least partially have a common cooling body.

2. The circuit arrangement according to claim 1, wherein a plurality of capacitors connected in parallel, preferably a capacitor bank, is provided and the individual capacitors are electrically conductively connected by the connection elements arranged at a first spacing to the direct current laminate.

3. The circuit arrangement according to claim 1, wherein the connection elements, which are arranged at the second spacing, of the direct current laminate are arranged such that a plurality of electronic power switches can be electrically conductively connected in an axially symmetrical arrangement to the direct current laminate.

4. The circuit arrangement according to claim 1, wherein the connection elements, which are arranged at the second spacing, of the direct current laminate have sleeves with an internal thread.

5. The circuit arrangement according to claim 1, wherein the cross-sectional shape of the adapter laminate has at least one right angle.

6. The circuit arrangement according to claim 1, wherein contact faces of the connection elements, which are arranged at the second spacing, of the direct current laminate are arranged in one plane.

7. The circuit arrangement according to claim 1, wherein contact faces of the connection elements, which are adapted to the second spacing, of the adapter laminate are arranged in one plane.

8. The circuit arrangement according to claim 1, wherein the common cooling body is modularly constructed.

9. The circuit arrangement according to claim 1, wherein the common cooling body cools by air.

10. The circuit arrangement according to claim 9, wherein the common cooling body cools by a liquid cooling medium.

11. The circuit arrangement according to claim 1, wherein the common cooling body associated with a power switch or a group of power switches in each case of the common cooling body has separate coolant connections.

12. The circuit arrangement according to claim 1, wherein a plurality of direct current laminates are provided, which are electrically conductively connected to one another by respective connection means provided in the direct current laminate.

13. The circuit arrangement according to claim 1, wherein at least one of the first and/or the second spacing of the direct current laminate takes into account different capacitor or power switch connection geometries.

14. The circuit arrangement according to claim 1, wherein the electronic power module is selected from the group consisting of at least one transistor, preferably at least one insulated gate bipolar transistor (IGBT) module, integrated gate commutated thyristor (IGCT), diodes and at least one chopper module.

15. The circuit arrangement according to claim 1, wherein electronic power switches, in particular IGBT modules for three phases, are provided.

16. A power generation device with an inverter or rectifier comprising a circuit arrangement according to claim 1.

17. The power generation device according to claim 16, wherein the power generation device is a wind energy plant with a generator, which has either a rectifier or an inverter and either the rectifier or inverters have the circuit arrangement.