Power management method and system
First Claim
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1. A power management system comprising:
- a sensor positioned adjacent an electrical transmission line carrying alternating current, the sensor comprising at least two measurement elements configured to generate a signal proportional to the magnitude of changes in the electro magnetic field surrounding the transmission line, wherein the sensor generates a signal proportional to a harmonic voltage on the transmission line; and
a system for processing the signals generated by the elements comprising a computer and a database including historical data for the condition of the transmission line, the system processing the signals and generating an output that indicates changes in the condition of the power transmission line on a real time basis.
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Abstract
The present invention provides a new application for an inductive coupler (12) used proximate a power transmission line (14). The magnetic field based power measurement method and system discussed herein in unique and differs from the prior technology by using near-real time intervals and periods that occur systemically in parallel with electrical systems rather than an accumulated period with little or no active capacity or proactive features. The inductive coupler (12) described herewith is used to collect, measure, and/or extract electromagnetic changes.
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Citations
20 Claims
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1. A power management system comprising:
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a sensor positioned adjacent an electrical transmission line carrying alternating current, the sensor comprising at least two measurement elements configured to generate a signal proportional to the magnitude of changes in the electro magnetic field surrounding the transmission line, wherein the sensor generates a signal proportional to a harmonic voltage on the transmission line; and a system for processing the signals generated by the elements comprising a computer and a database including historical data for the condition of the transmission line, the system processing the signals and generating an output that indicates changes in the condition of the power transmission line on a real time basis. - View Dependent Claims (2, 3, 4, 5, 11)
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6. A sensor configured to be positioned adjacent and parallel to an electrical transmission line carrying alternating current, comprising:
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a casing; a first electrical conductor disposed inside the casing having at least one turn therein to provide a pair of parallel linear segments of unequal length each extending in a lengthwise direction of the sensor; a second electrical conductor in the form of a coil disposed around the first conductor; a first lead connected to the first conductor for conducting a signal from the first conductor through the casing to an external signal analyzer; and a second lead connected to the second conductor for conducting a signal from the second conductor through the casing to an external signal analyzer. - View Dependent Claims (7, 8, 9, 10)
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12. An electrical power management system, comprising:
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a number of sensors positioned at different locations within an electric power distribution system, which sensors measure the magnitude of electrical changes at such locations; processors connected to receive a signal from each associated sensor, the processor processing the signals and generating an output that indicates changes in the condition of the power distribution system at that location; a computer that receives the outputs from the processors; and a database including one or more grid maps, the computer using the grid map to generate a graphical representation of the power distribution system, including a location of the source of a change in condition of the power distribution system. - View Dependent Claims (13, 14, 15)
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16. A power management system comprising:
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a sensor positioned adjacent an electrical transmission line carrying alternating current, the sensor comprising at least two measurement elements configured to generate a signal proportional to the magnitude of changes in the electro magnetic field surrounding the transmission line, wherein the sensor generates a signal proportional to a harmonic voltage on the transmission line, wherein the first element is configured to generate an output that is phase shifted relative to the output of the second measurement element; and a system for processing the signals generated by the elements, the system processing the signals and generating an output that indicates changes in the condition of the power transmission line on a real time basis. - View Dependent Claims (17, 18, 19, 20)
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Specification