Invention Grant
- Patent Title: Multi-string inverter having input-side EMC filter
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Application No.: US14683301Application Date: 2015-04-10
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Publication No.: US09614427B2Publication Date: 2017-04-04
- Inventor: Niels Berger , Tomasz Napierala , Stefan Buchhold , Julia Pinne , Frank Rueckmann , Henrik Wolf
- Applicant: SMA Solar Technology AG
- Applicant Address: DE Niestetal
- Assignee: SMA SOLAR TECHNOLOGY AG
- Current Assignee: SMA SOLAR TECHNOLOGY AG
- Current Assignee Address: DE Niestetal
- Agency: Eschweiler & Associates, LLC
- Priority: DE102012109638 20121010
- Main IPC: H02M1/00
- IPC: H02M1/00 ; H02M7/44 ; H02M1/44 ; H02J3/38 ; H02M7/48 ; H02M3/158

Abstract:
An inverter includes a DC/AC converter, a DC intermediate circuit on the direct current input side of the DC/AC converter, multiple DC/DC converters connected in parallel to one another on the output side to the DC intermediate circuit, multiple inputs each coupled to one of the DC/DC converters, and an EMC filter connected between the inputs and the DC/DC converters. The EMC filter includes chokes in all current-carrying lines between the inputs and the DC/DC converters and filter capacitors between the inputs and the DC/DC converters leading from all the current-carrying lines to ground. The chokes in all current-carrying lines from the at least two inputs are formed by means of choke windings on a common core of a current-compensated choke.
Public/Granted literature
- US20150222170A1 MULTI-STRING INVERTER HAVING INPUT-SIDE EMC FILTER Public/Granted day:2015-08-06
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