Invention Grant
- Patent Title: Method for preventing a dangerous, higher-frequency earth fault current for an electrical drive system
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Application No.: US16336748Application Date: 2017-08-17
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Publication No.: US10734800B2Publication Date: 2020-08-04
- Inventor: Hubert Schierling , Benno Weis
- Applicant: SIEMENS AKTIENGESELLSCHAFT
- Applicant Address: DE Munich
- Assignee: SIEMENS AKTIENGESELLSCHAFT
- Current Assignee: SIEMENS AKTIENGESELLSCHAFT
- Current Assignee Address: DE Munich
- Agency: Haney M. Feiereisen LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4ad8bd3e
- International Application: PCT/EP2017/070816 WO 20170817
- International Announcement: WO2018/059823 WO 20180405
- Main IPC: H02H3/33
- IPC: H02H3/33 ; G01R31/40 ; G01R31/50 ; G01R27/18 ; H02H7/12
Abstract:
A dangerous, higher-frequency (>1 kHz) earth fault current in an electrical drive system operated in an electrical grid and having a power converter and an electrical drive machine can be prevented by producing a common-mode voltage with a defined common-mode voltage component in the power converter at a selected low frequency (
Public/Granted literature
- US20190363533A1 METHOD FOR PREVENTING A DANGEROUS, HIGHER-FREQUENCY EARTH FAULT CURRENT FOR AN ELECTRICAL DRIVE SYSTEM Public/Granted day:2019-11-28
Information query
IPC分类:
