Determining status of electric power transmission lines in an electric power transmission system
First Claim
1. A system configured to determine loss of at least one electric power transmission line in an electric power transmission system, the system comprising:
- an electrical parameter monitoring subsystem configured to;
receive a first plurality of electrical parameter measurements taken at a first location over a period of time;
receive a second plurality of electrical parameter measurements taken at a second location over the period of time; and
determine a change in the first plurality of electrical measurements and the second plurality of electrical measurements over the period of time;
an analysis subsystem configured to;
determine that the change is indicative of loss of at least one transmission line;
calculate an angle difference ratio;
calculate a power ratio; and
calculate a number of transmission lines lost by calculating a product of the angle difference ratio and the power ratio; and
a remedial action subsystem configured to implement a remedial action in response to loss of at least one transmission line, the remedial action comprising one of reconfiguring the electric power transmission system to re-routing electric power around the at least one transmission line and selectively disconnecting a load.
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Accused Products
Abstract
The present application discloses systems and methods to determine loss of at least one electric power transmission line in an electric power transmission system. In various embodiments, a system consistent with the present disclosure may include an electrical parameter monitoring subsystem configured to receive electrical parameter measurements and to determine a change of the electrical measurements. An analysis subsystem may determine whether a change in the electrical measurements is indicative of loss of at least one transmission line and may calculate a number of transmission lines lost based on the change. In some embodiments, a remedial action subsystem may be configured to implement a remedial action in response to loss of at least one transmission line. The number of transmission lines lost may be determined based on an angle difference ratio and a power ratio between two buses in electrical transmission system.
99 Citations
15 Claims
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1. A system configured to determine loss of at least one electric power transmission line in an electric power transmission system, the system comprising:
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an electrical parameter monitoring subsystem configured to; receive a first plurality of electrical parameter measurements taken at a first location over a period of time; receive a second plurality of electrical parameter measurements taken at a second location over the period of time; and determine a change in the first plurality of electrical measurements and the second plurality of electrical measurements over the period of time; an analysis subsystem configured to; determine that the change is indicative of loss of at least one transmission line; calculate an angle difference ratio; calculate a power ratio; and calculate a number of transmission lines lost by calculating a product of the angle difference ratio and the power ratio; and a remedial action subsystem configured to implement a remedial action in response to loss of at least one transmission line, the remedial action comprising one of reconfiguring the electric power transmission system to re-routing electric power around the at least one transmission line and selectively disconnecting a load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of determining loss of at least one electric power transmission line in an electric power transmission system, the method comprising:
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receiving a first plurality of electrical parameter measurements taken at a first location over a period of time; receiving a second plurality of electrical parameter measurements taken at a second location over the period of time; determining a change in the first plurality of electrical measurements and the second plurality of electrical measurements over the period of time; determining that the change is indicative of loss of at least one transmission line; calculating an angle difference ratio; calculating a power ratio; calculating a number of transmission lines lost by calculating a product of the angle difference ratio and the power ratio; declaring an open line condition; and initiating a first remedial action, the first remedial action comprising one of reconfiguring the electric power transmission system to re-routing electric power around the at least one transmission line and selectively disconnecting a load. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification