公开(公告)号：US10901004B2

公开(公告)日：2021-01-26

申请号：US15710243

申请日：2017-09-20

Applicant: ABB Schweiz AG

Inventor： Joris Pascal ,  Richard Bloch

IPC: G01R15/04 ,  G01R35/00 ,  G01R19/00

Abstract: The present application relates to a method for providing a corrected measuring signal indicating a high voltage on a high-voltage node (HV), including: injecting a periodic injection signal into a voltage divider coupled between the high-voltage node (HV) and a reference potential; obtaining a sensing signal at a sensing node (S) of the voltage divider, wherein the sensing signal depends on the periodic injection signal; from the sensing signal, separating a first sensing signal portion resulting from the high voltage and a second sensing signal portion resulting from the periodic injection signal; and depending on the second sensing signal portion, correcting the first sensing signal portion corresponding to the high-voltage signal in order to obtain the corrected measuring signal.

公开(公告)号：US20180011128A1

公开(公告)日：2018-01-11

申请号：US15710243

申请日：2017-09-20

Applicant: ABB Schweiz AG

Inventor： Joris Pascal ,  Richard Bloch

IPC: G01R15/04 ,  G01R35/00

CPC classification number: G01R15/04 ,  G01R35/005

Abstract: The present application relates to a method for providing a corrected measuring signal indicating a high voltage on a high-voltage node (HV), including: injecting a periodic injection signal into a voltage divider coupled between the high-voltage node (HV) and a reference potential; obtaining a sensing signal at a sensing node (S) of the voltage divider, wherein the sensing signal depends on the periodic injection signal; from the sensing signal, separating a first sensing signal portion resulting from the high voltage and a second sensing signal portion resulting from the periodic injection signal; and depending on the second sensing signal portion, correcting the first sensing signal portion corresponding to the high-voltage signal in order to obtain the corrected measuring signal.