公开(公告)号：EP2201390A2

公开(公告)日：2010-06-30

申请号：EP08803964.9

申请日：2008-09-10

申请人： Ably AS

发明人： GAARDER, Pal Even

IPC分类号： G01R21/133 ,  G01R21/08 ,  H02J3/24

CPC分类号： G01R21/133

摘要： An apparatus (10) for measurement of power in an electric power transmission line (20) is disclosed. The apparatus (10) comprises a magnetic field sensor (30) for measuring the magnetic field (35) at the electric power transmission line (20) and transmitting magnetic field data (37) to a processor (40). The magnetic field sensor (30) is arranged proximate to but at a distance from the electric power transmission line (20). The apparatus (10) also has a voltage sensor (50) arranged distally from the magnetic field sensor (30) for transmitting voltage waveform data (55) to the processor (40) and a transfer function calculator (60) for calculating the relationship between the transmitted voltage waveform data at the voltage sensor (50) and transmission line voltage waveform data (55). A method for measurement of power in an electric power transmission line (20) is also disclosed and comprises measuring the magnetic field (35) about the electric power transmission line (20) proximate to but at a distance from the electric power transmission line (20), measuring a distal voltage waveform (55) distally from the electric power transmission line (20), calculating a transmission line voltage waveform data from the distal voltage waveform (55) and calculating the power in the electric power transmission line (20) from the transmission line voltage waveform data and the magnetic field data (37).

公开(公告)号：EP3005530A1

公开(公告)日：2016-04-13

申请号：EP14726959.1

申请日：2014-05-26

申请人： Ably AS

发明人： GAARDER, Pål Even

IPC分类号： H02J13/00

CPC分类号： G01R21/00 ,  G01R19/2513 ,  G01R25/00 ,  G01R31/40 ,  H02J3/008 ,  H02J3/01 ,  H02J3/16 ,  H02J3/18 ,  H02J13/0006 ,  H02J13/0062 ,  H04Q9/00 ,  H04Q2209/60 ,  Y02E40/34 ,  Y02E40/40 ,  Y02E40/74 ,  Y02E60/726 ,  Y02E60/74 ,  Y02E60/7838 ,  Y04S10/22 ,  Y04S10/24 ,  Y04S10/30 ,  Y04S40/124 ,  Y04S50/10

摘要： A system and method for measurement of one or more parameters of a power grid (10) is disclosed. This comprises determining a plurality of events in at least one power waveform on the power grid using at least two sensors (30, 50) and recording timings of the plurality of events in at least two different locations in the power grid. The data gathered is used to determine differences between the timings recorded in the at least two locations. A processing unit (40) is used to analyse the differences of the timings to determine the one or more parameters. These parameters include power flow, short circuits, and breaks in the power grid (10).

公开(公告)号：EP2825895A1

公开(公告)日：2015-01-21

申请号：EP13715150.2

申请日：2013-03-13

申请人： Ably AS

发明人： GAARDER, Paal Even

IPC分类号： G01R31/08

CPC分类号： G01R31/086 ,  Y04S10/522

摘要： An apparatus (10) and method for monitoring power transmission, disturbances and forecasts in a power grid is disclosed. The apparatus (10) comprises a plurality of magnetic field sensors (30) or voltage sensors (50) for measuring a change in the magnetic field (35) or voltage over time at the electric power transmission line (20).

公开(公告)号：EP2201390B1

公开(公告)日：2014-04-16

申请号：EP08803964.9

申请日：2008-09-10

申请人： Ably AS

发明人： GAARDER, Pal Even

IPC分类号： G01R21/133 ,  G01R21/08 ,  H02J3/24

CPC分类号： G01R21/133