Automatically Configurable Intelligent Electronic Device

• US 20140351572A1
• Filed: 05/15/2014
• Published: 11/27/2014
• Est. Priority Date: 05/21/2013
• Status: Active Application

• Current Assignee: Schweitzer Engineering Laboratories, Incorporated
• Original Assignee: Schweitzer Engineering Laboratories, Incorporated
• Inventors: Mynam, Mangapathirao Venkata, Guzman-Casillas, Armando
• Granted Patent: US 10,261,567 B2
• Time in Patent Office: Days
• US Class Current: 713/100
• CPC Class Codes: G01R 31/08 Locating faults in cables, transmission lines, or networks
• CPC Class Codes: G06F 1/3234 Power saving characterised by the action undertaken
• CPC Class Codes: G06F 9/44505 Configuring for program initiating, e.g. using registry, configuration files
• CPC Class Codes: H02H 1/0061 concerning transmission of signals transmission of measured quantities or switching orders; sectionalised protection involving signal transmission between at least two stations H02H7/261; comparison of the voltage or current values at two spaced portions of a single system H02H3/28; transferring the output of a sensing member to another variable G01D5/00; electrical measuring arrangements using modulation of electromagnetic waves, e.g. light beams G01R15/24, G01R15/26
• CPC Class Codes: H02H 3/006 Calibration or setting of parameters
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

Disclosed herein are intelligent electronic devices configured for monitoring an electric power delivery system and for determining a plurality of configuration settings based on measurements from the electric power delivery system. An IED may identify a configuration event, obtain a plurality of electrical parameters associated with the configuration event, determine a plurality of configuration parameters from the electrical parameters, determine a plurality of configuration settings based on the configuration parameters, and apply the settings to the IED. The IED may also be configured to initiate the configuration event by opening a single pole of a multi-phase power line.

Claims

1. A system for monitoring an electric power delivery system that includes a power line, comprising:

a local intelligent electronic device (IED) in communication with a local portion of the power line obtaining local electric power system measurements;

a remote IED in communication with a remote portion of the power line obtaining remote electric power system measurements;

a communication system in communication with the local and remote IEDs for transmitting the local and remote power system measurements;

a configuration event module configured to receive the local and remote power system measurements and identify a configuration event therefrom;

a configuration parameters module configured to receive the local and remote power system measurements and determine a plurality of configuration parameters based thereon; and

,

a configuration settings module configured to calculate a plurality of IED configuration settings based on the plurality of configuration parameters.

2. The system of claim 1, wherein the local IED comprises the configuration event module, the configuration parameters module, and the configuration settings module.

3. The system of claim 1, wherein the configuration event comprises a single pole open condition.

4. The system of claim 1, wherein the configuration event comprises an unbalance condition.

5. The system of claim 1, wherein the local IED is configured to initiate the configuration event by opening a single pole of a circuit breaker on the power line.

6. The system of claim 1, wherein the configuration event comprises an unplanned event.

7. The system of claim 1, wherein the configuration parameters comprise one selected from the group consisting of:

positive sequence line impedance;

zero sequence line impedance; and

combinations thereof.

8. The system of claim 7, wherein the positive sequence line impedance is equal to:

9. The system of claim 7, wherein the zero sequence line impedance is equal to:

10. The system of claim 7, wherein the positive sequence line impedance or negative sequence line impedance are equal to:

11. The system of claim 7, wherein the zero sequence line impedance is equal to:

12. The system of claim 1, wherein the plurality of configuration settings comprise settings for a distance element and a directional element.

13. The system of claim 1, wherein the configuration settings comprise a plurality of zone reach settings.

14. The system of claim 1, wherein the configuration settings comprise forward and reverse directional settings.

15. The system of claim 1, wherein the local IED is configured to apply the plurality of IED configuration settings.

16. The system of claim 1, wherein the local IED is configured to apply the plurality of IED configuration settings only after approval by a user.

17. A method for configuring an intelligent electronic device (IED) for protection of an electric power line of an electric power delivery system;

comprising;

a local IED obtaining local electric power delivery system measurements from a local portion of the electric power line;

a remote IED obtaining remote electric power delivery system measurements from a remote portion of the electric power line;

identifying a configuration event using the local electric power delivery system measurements;

determining a plurality of configuration parameters based on the local and remote electric power delivery system measurements;

calculating a plurality of IED configuration settings based on the plurality of configuration parameters.

18. The method of claim 17, wherein the local IED performs the steps of identifying the configuration event, determining the plurality of configuration parameters, and calculating the plurality of IED configuration settings.

19. The method of claim 17, wherein the configuration event comprises a single pole open condition.

20. The method of claim 17, wherein the configuration event comprises an unbalance condition.

21. The method of claim 17, further comprising the step of the local IED initiating the configuration event by opening a single pole circuit breaker on the power line.

22. The method of claim 17, wherein the configuration parameters comprise one selected from the group consisting of:

positive sequence line impedance;

zero sequence line impedance; and

combinations thereof.

23. An intelligent electronic device (IED) configured to monitor an electrical power line, the IED further configured to automatically determine a plurality of configuration parameters during a configuration event, the IED comprising:

a data bus;

a communications port configured to transmit and receive information with a data network, the communications port in communication with the data bus;

a processor in communication with the data bus;

a non-transitory computer-readable storage medium in communication with the data bus and comprising instructions that when executed cause the processor to;

identify a configuration event;

obtain a plurality of electrical parameters associated with the configuration event;

determine a plurality of configuration parameters based upon the plurality of electrical parameters;

automatically determine a plurality of configuration settings based upon the plurality of configuration parameters; and

configure the IED based on the plurality of configuration settings.