STATE AND TOPOLOGY PROCESSOR
First Claim
1. A system for monitoring an electrical power system, comprising:
- a communication module communicatively coupled to a plurality of intelligent electronic devices (IEDs), wherein each IED is communicatively coupled to a portion of the electrical power system; and
a topology processor communicatively coupled to the communication module and comprising a static topology of the electrical power system,wherein the topology processor is configured to receive dynamic topology data from the IEDs and to determine an operating topology of the electrical power system using the static topology and the dynamic topology data.
2 Assignments
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Accused Products
Abstract
A State and Topology Processor (STP) may be communicatively coupled to one or more intelligent electronic devices (IEDs) communicatively coupled to a electrical power system to obtain one or more current measurements, voltage measurements, and dynamic topology data therefrom. The STP may receive the measurement data and may determine a current topology and a voltage topology therefrom. A current processor may use the current topology and the current measurements to refine the measurements, perform KCL, unbalance, symmetrical component, and consistency checks on the electrical power system. The voltage processor may use the voltage topology and the voltage measurements to perform similar checks on the electrical power system. One or more alarms may be generated responsive to the checks. The data may be displayed to a user in a display of a human machine interface and/or may be transmitted to a user programmable task module, and/or an external control unit.
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Citations
106 Claims
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1. A system for monitoring an electrical power system, comprising:
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a communication module communicatively coupled to a plurality of intelligent electronic devices (IEDs), wherein each IED is communicatively coupled to a portion of the electrical power system; and a topology processor communicatively coupled to the communication module and comprising a static topology of the electrical power system, wherein the topology processor is configured to receive dynamic topology data from the IEDs and to determine an operating topology of the electrical power system using the static topology and the dynamic topology data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 66, 67, 73)
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44. A computer-readable storage medium comprising instructions to cause a computing device to perform a method for monitoring an electrical power system comprising a plurality of nodes interconnected by a one or more branches having a plurality of intelligent electronic devices (IEDs) communicatively coupled thereto, the method comprising:
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storing a static topology of the electrical power system; receiving from the plurality of IEDs a plurality of current measurements obtained from one or more of the branches of the electrical power system, a plurality of voltage measurements obtained from one or more of the nodes of the electrical power system and dynamic topology data; and determining an operating topology of the electrical power system using the static topology of the electrical power system and the dynamic topology data received from the plurality of IEDs, wherein the operating topology comprises a current topology and a voltage topology. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 54, 55, 62, 63, 64, 65, 68, 69, 70, 71, 72)
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- 52. The computer-readable storage medium of 51, wherein the current topology comprises a current correction factor, and wherein the computer-readable storage medium comprises instructions to normalize a current measurement using the current correction factor.
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74. A system for monitoring an electrical power system comprising a plurality of nodes interconnected by one or more branches, the system comprising:
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a plurality of intelligent electronic devices (IEDS) communicatively coupled to the electrical power system to obtain a plurality of current measurements, a plurality of voltage measurements, and dynamic topology data therefrom; a communication module communicatively coupled to the plurality of IEDs to receive the plurality of current measurements, the plurality of voltage measurements, and the dynamic topology data therefrom, wherein the communication module comprises a time alignment module to time align the plurality of current measurements and the plurality of voltage measurements; a topology processor communicatively coupled to the communication module comprising a static topology of the electrical power system, wherein the topology processor is configured to determine an operating topology of the electrical power system using the static topology and the dynamic topology data received from the plurality of IEDs, and wherein the operating topology comprises a current topology and a voltage topology; a current processor communicatively coupled to the topology processor and the communication module, wherein the current processor is configured to normalize one or more of the plurality of current measurements using one or more current correction factors defined in the current topology, and wherein the current processor is configured to perform a current consistency check, an unbalance check, a symmetric components check, and a Kirchhoff'"'"'s Current Law (KCL) check on the electrical power system using the current topology and the plurality of current measurements; a voltage processor communicatively coupled to the topology processor and the communication module, wherein the voltage processor is configured to normalize one or more of the plurality of voltage measurements using one or more voltage correction factors defined in the voltage topology, and wherein the voltage processor is configured to perform a voltage consistency check and a symmetric components check on the electrical power system using the voltage topology and the plurality of voltage measurements; and a phase measurement and control unit (PMCU) communicatively coupled to the current processor and the voltage processor to transmit one or more normalized current measurements and/or voltage measurements produced by the current processor and/or voltage processor, the current measurements and phase measurements being normalized, refined, or raw, to an external device, the PMCU further communicatively coupled to the current processor and the voltage processor to transmit alarms and outputs to the external device.
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75. A method for monitoring an electrical power system comprising a plurality of nodes interconnected by one or more branches having a plurality of intelligent electronic devices (IEDs) communicatively coupled thereto, the method comprising:
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storing a static topology of the electrical power system; receiving from the plurality of IEDs a plurality of current measurements, a plurality of voltage measurements, and dynamic topology data, wherein the plurality of current measurements, the plurality of voltage measurements, and the dynamic topology data are time aligned using one or more timestamps; determining an operating topology of the electrical power system using the static topology data and the dynamic topology data obtained from the plurality of IEDs, wherein the operating topology comprises a current topology and a voltage topology; monitoring the electrical power system using the current topology and the plurality of current measurements, the monitoring comprising; normalizing one or more of the plurality of current measurements using one or more phase current correction factors defined in the current topology, performing a consistency check on one or more branches of the electrical power system having a plurality of current measurements thereon, performing an unbalance check on one or more of the plurality of current measurements, performing a symmetrical component check on one or more of the plurality of current measurements, performing a Kirchhoff'"'"'s Current Law (KCL) check on a plurality of current measurements reaching a common node in the current topology, and refining the plurality of current measurements reaching the common node in the current topology using a correction matrix, monitoring the electrical power system using the voltage topology and the plurality of voltage measurements, the voltage monitoring comprising; normalizing one or more of the plurality of voltage measurements using one or more voltage correction factors defined in the voltage topology, performing a voltage symmetrical component check on one or more of the plurality of voltage measurements, and performing a voltage consistency check on a plurality of voltage measurements of one or more nodes in the voltage topology, refining the plurality of voltage measurements of the one or more nodes in the voltage topology; transmitting one or more of the normalized current measurements and/or voltage measurements to an external monitoring system.
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76. A method for visualizing a state and topology of an electrical power system comprising a plurality of nodes interconnected by one or more branches having a plurality of intelligent electronic devices (IEDs) communicatively coupled thereto, the method comprising:
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storing a static topology of the electrical power system; receiving from the plurality of IEDs a plurality of current measurements, a plurality of voltage measurements, and dynamic topology data; determining an operating topology of the electrical power system using the static topology and the dynamic topology data; calculating refined current measurements and refined voltage measurements from the plurality of current measurements and the plurality of voltage measurements; and providing for displaying the operating topology, the refined current measurements, and the refined voltage measurements on a display of a human machine interface. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. A system for visualizing a state and topology of an electrical power system comprising a plurality of nodes interconnected by one or more branches, the system comprising:
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a communication module communicatively coupled to a plurality of intelligent electronic devices (IEDs), wherein each IED is communicatively coupled to a portion of the electrical power system to obtain measurement data therefrom; a state and topology processor communicatively coupled to the communication module; and a human machine interface (HMI) comprising a display communicatively coupled to the state and topology processor, wherein the state and topology processor is configured to receive measurement data from the IEDs and to determine an operating topology of the electrical power system therefrom, and wherein HMI is configured to display the operating topology on the display to a user. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105)
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106. A system for visualizing a state and topology of an electrical power system comprising a plurality of nodes interconnected by one or more branches, the system comprising:
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a communication module communicatively coupled to a plurality of intelligent electronic devices (IEDs), wherein each of the plurality of IEDs is communicatively coupled to a respective portion of the electrical power system to obtain measurement data therefrom; a state and topology processor comprising a static topology of the electrical power system communicatively coupled to the communication module to receive a plurality of time aligned current measurements, a plurality of time aligned voltage measurements, and dynamic topology data therefrom, wherein the state and topology processor is configured determine an operating topology of the electrical power system, to refine one or more of the plurality of current measurements, to refine one or more of the plurality of voltage measurements, and to set one or more alarms on one or more components of the electrical power system responsive to receiving the time aligned current measurements, time aligned voltage measurements, and dynamic topology data from the plurality of IEDs; and a human machine interface (HMI) comprising a display communicatively coupled to the state and topology processor, wherein the HMI is configured to display the operating topology, the one or more refined current measurements, the one or more refined voltage measurements, and the one or more alarms on the display.
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Specification