Method and apparatus for monitoring electric power transmission, disturbances and forecasts
First Claim
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1. A method for determining a change in power grid parameters of an electric power transmission network, the electric power transmission network comprising a plurality of electric power transmission lines, the method comprising:
- monitoring a magnetic field about at least one of the electric power transmission lines using a first magnetic field sensor located at a first distance from the at least one of the electric power transmission lines;
transmitting data from said magnetic field sensor to a processor;
determining with said processor from said data transmitted to said processor from said magnetic field sensor a first change over time in a value of the magnetic field at the first magnetic field sensor;
comparing with said processor the first change over time in the value of the magnetic field with a first magnetic field reference value, and thereby determining a presence of the change in power grid parameters.
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Abstract
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).
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Citations
30 Claims
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1. A method for determining a change in power grid parameters of an electric power transmission network, the electric power transmission network comprising a plurality of electric power transmission lines, the method comprising:
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monitoring a magnetic field about at least one of the electric power transmission lines using a first magnetic field sensor located at a first distance from the at least one of the electric power transmission lines; transmitting data from said magnetic field sensor to a processor; determining with said processor from said data transmitted to said processor from said magnetic field sensor a first change over time in a value of the magnetic field at the first magnetic field sensor; comparing with said processor the first change over time in the value of the magnetic field with a first magnetic field reference value, and thereby determining a presence of the change in power grid parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for determining a change in power grid parameters of an electric power transmission network, the electric power transmission network comprising a plurality of electric power transmission lines, the method comprising:
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monitoring a voltage about at least one of the electric power transmission lines using by a first voltage sensor located at a first distance from the at least one of the electric power transmission lines; transmitting data from said voltage sensor to a processor; storing data transmitted from said voltage sensor in a database; determining with said processor from said data transmitted to said processor from said voltage sensor a first change over time in a value of the voltage at the first voltage sensor; comparing with said processor the first change in the value of the voltage with a first voltage reference value, and thereby determining the change in power grid parameters. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for determining a change in power grid parameters of an electric power transmission network, the electric power transmission network comprising a plurality of electric power transmission lines, the apparatus comprising:
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at least one of a voltage sensor or a magnetic field sensor located at a first location at a first distance from at least one of the plurality of electric power transmission lines for sensing a magnetic field or a voltage associated with said power transmission lines; one or more data lines for transferring data from the at least one of a voltage sensor or a magnetic field sensor, wherein said data comprises substantially real-time field data measured by said at least one of a voltage sensor or a magnetic field sensor, said field data comprising at least one of a magnetic field or a voltage associated with said power transmission lines; and a processor, said processor receiving data transferred by said one or more data lines, analysing the received data and determining changes in a value of said field data against time, and thereby determining the change in power grid parameters on the power grid by comparison to a reference value. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification