公开(公告)号：US20180224488A1

公开(公告)日：2018-08-09

申请号：US15947322

申请日：2018-04-06

Applicant: AeroVironment, Inc.

Inventor： Peter Gabrielsson ,  Albert Joseph Flack ,  Scott Berman

IPC: G01R27/18 ,  G01R31/00 ,  B60L11/18 ,  H02H3/04 ,  H02H7/04 ,  H02H7/045

Abstract: Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.

公开(公告)号：US10585127B2

公开(公告)日：2020-03-10

申请号：US15947322

申请日：2018-04-06

Applicant: AeroVironment, Inc.

Inventor： Peter Gabrielsson ,  Albert Joseph Flack ,  Scott Berman

IPC: H02H7/04 ,  G01R27/18 ,  H02H3/33 ,  G01R15/18 ,  B60L53/60 ,  B60L3/00 ,  G01R31/00 ,  H02H3/04 ,  H02H7/045

Abstract: Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.

公开(公告)号：US09964574B2

公开(公告)日：2018-05-08

申请号：US15614059

申请日：2017-06-05

Applicant: AeroVironment, Inc.

Inventor： Peter Gabrielsson ,  Albert Joseph Flack ,  Scott Berman

IPC: H02H7/04 ,  G01R27/18 ,  B60L11/18 ,  G01R31/00 ,  H02H3/04 ,  H02H7/045

CPC classification number: G01R27/18 ,  B60L11/1809 ,  B60L11/1838 ,  B60L11/1881 ,  G01R31/006 ,  H02H3/044 ,  H02H3/338 ,  H02H7/04 ,  H02H7/045

Abstract: Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.

公开(公告)号：US20170350927A1

公开(公告)日：2017-12-07

申请号：US15614059

申请日：2017-06-05

Applicant: AeroVironment, Inc.

Inventor： Peter Gabrielsson ,  Albert Joseph Flack ,  Scott Berman

IPC: G01R27/18 ,  G01R31/00 ,  B60L11/18 ,  H02H3/04

CPC classification number: G01R27/18 ,  B60L11/1809 ,  B60L11/1838 ,  B60L11/1881 ,  G01R31/006 ,  H02H3/044 ,  H02H3/338 ,  H02H7/04 ,  H02H7/045

Abstract: Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.