METHOD AND SYSTEM FOR PROGRAMMING AND IMPLEMENTING AUTOMATED FAULT ISOLATION AND RESTORATION USING SEQUENTIAL LOGIC
First Claim
1. A method for programming and implementing automated fault isolation and service restoration in power distribution networks having protective relay devices comprising processing and communication capabilities and associated with switching devices, comprising:
- (a) storing, based on a topology of a power distribution network, information to be used in automated fault isolation and service restoration, comprising operation mode information, system status information, and fault information;
(b) grouping operation mode information, system status information, and fault information into functional groups for messaging;
(c) programming into each of the protective relay devices a plurality of operational sequences that when executed control associated switching devices when a fault detection element identifies a faulted section in the network, wherein each operational sequence is based on operation mode information, system status information, and fault information;
(d) sharing operation mode information, system status information, and fault information via peer-to-peer messaging between all of the protective relay devices via a high speed communication system; and
(d) executing a sequential isolation operation comprising a proper operational sequence based on mode information, system status information, and fault information to isolate the faulted section in a series of sequential steps.
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Accused Products
Abstract
A method and system for programming and implementing automated fault isolation and restoration of high-speed fault detection of circuits in power distribution networks using sequential logic and peer-to-peer communication is provided. High-speed fault detection of circuits in power distribution networks uses protective relay devices (14) segmenting a distribution line (11) having Intelligent Electronic Devices (IED) (22) associated with switching devices (20) communicating peer-to-peer via a communication system (30) to provide fast and accurate fault location information in distribution systems with sequential logic.
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Citations
20 Claims
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1. A method for programming and implementing automated fault isolation and service restoration in power distribution networks having protective relay devices comprising processing and communication capabilities and associated with switching devices, comprising:
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(a) storing, based on a topology of a power distribution network, information to be used in automated fault isolation and service restoration, comprising operation mode information, system status information, and fault information; (b) grouping operation mode information, system status information, and fault information into functional groups for messaging; (c) programming into each of the protective relay devices a plurality of operational sequences that when executed control associated switching devices when a fault detection element identifies a faulted section in the network, wherein each operational sequence is based on operation mode information, system status information, and fault information; (d) sharing operation mode information, system status information, and fault information via peer-to-peer messaging between all of the protective relay devices via a high speed communication system; and (d) executing a sequential isolation operation comprising a proper operational sequence based on mode information, system status information, and fault information to isolate the faulted section in a series of sequential steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. A system for programming and implementing automated fault isolation and service restoration in power distribution networks, comprising
a plurality of protective relay devices in a power distribution network, each protective relay device comprising a processor and associated with switching devices for fault isolation and service restoration; -
a communication device associated with each protective relay device that provides peer-to-peer communication between the protective relay devices, wherein messaging in the communication device comprises defined functional groups that group operation mode information, system status information, and fault information defined based on a topology of the power distribution network, information to be used in automated fault isolation and service restoration, wherein each communication device provides for sharing of operation mode information, system status information, and fault information via peer-to-peer messaging between all of the protective relay devices via a high speed communication system; wherein each protective relay device has programmed therein a plurality of operational sequences that when executed control associated switching devices when a fault detection element identifies a faulted section in the network, wherein each operational sequence is based on operation mode information, system status information, and fault information, such that a sequential isolation operation comprising a proper operational sequence based on mode information, system status information, and fault information is executed to isolate the faulted section in a series of sequential steps. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification