CA2333105A1 - Fault data synchronization via peer-to-peer communications network - Google Patents
Fault data synchronization via peer-to-peer communications network Download PDFInfo
- Publication number
- CA2333105A1 CA2333105A1 CA002333105A CA2333105A CA2333105A1 CA 2333105 A1 CA2333105 A1 CA 2333105A1 CA 002333105 A CA002333105 A CA 002333105A CA 2333105 A CA2333105 A CA 2333105A CA 2333105 A1 CA2333105 A1 CA 2333105A1
- Authority
- CA
- Canada
- Prior art keywords
- power system
- protective
- data
- cycles
- peer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims abstract 29
- 238000000034 method Methods 0.000 claims abstract 10
- 230000001360 synchronised effect Effects 0.000 claims abstract 6
- 230000004044 response Effects 0.000 claims abstract 4
- 230000015654 memory Effects 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 2
- 230000000977 initiatory effect Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
Abstract
A system and method for synchronizing power system data gathered in response to unscheduled power system events such as faults. A plurality of protective devices communicate over a peer-to-peer communication network, and when a first device detects the occurrence of a power system event, the device records cycles of power system data before, after, or surrounding the power system event. The first device informs remote devices via the network of the event and a time tag associated with the event, and the remote devices recor d synchronized power system data.
Claims (21)
1. A method of providing synchronized fault data in a power system, comprising the steps of:
Sensing, in a first protective relay associated with a first point on the power system, a power system event;
Recording, in the first protective relay, a time tag of the power system event and a first set of one or more cycles of power system data relating to the event;
Initiating the communication of a data message to other protective relays over a peer-to-peer communications network, the data message including the time tag;
Determining, in each of the other protective relays, a set of power system data corresponding to the first set, based on the time tag in the data message; and Recording, in each of the other protective relays, a determined corresponding set.
Sensing, in a first protective relay associated with a first point on the power system, a power system event;
Recording, in the first protective relay, a time tag of the power system event and a first set of one or more cycles of power system data relating to the event;
Initiating the communication of a data message to other protective relays over a peer-to-peer communications network, the data message including the time tag;
Determining, in each of the other protective relays, a set of power system data corresponding to the first set, based on the time tag in the data message; and Recording, in each of the other protective relays, a determined corresponding set.
2. The method of claim 1, further comprising the step of storing, in a memory associated with each of the other protective relays, synchronized data including one or more cycles of power system data and the time tag.
3. The method of claim 2, further comprising the step of retrieving the stored synchronized data from the memories for fault analysis.
4. The method of claim 1, wherein each determined corresponding set includes the same number of power cycles as the first set.
5. The method of claim 1, wherein each protective relay is connected to a common time standard.
6. The method of claim 5, wherein the time standard is IRIG-B.
7. The method of claim 1, wherein the message is communicated according to a Profibus protocol.
8. The method of claim 1, wherein the message is communicated according to an Ethernet protcol.
9. The method of claim 1, wherein the first set, and each determined corresponding set include a predetermined number of cycles of power system data.
10. A system for providing protective control of a power distribution system, comprising:
a plurality of digital protective relays, each relay being operatively connected to a point in the power distribution system so as to provide protective control, each relay having a digital processor and a memory for storing cycles of power system data;
a peer-to-peer communications network connected to exchange data messages between the plurality of protective relays; and a time standard operatively connected to each of the plurality of protective relays such that the plurality of protective relays is synchronized, wherein each of the plurality of protective relays synchronously records and stores cycles of power system data in response to the detection of a fault by one or more of the plurality of protective relays.
a plurality of digital protective relays, each relay being operatively connected to a point in the power distribution system so as to provide protective control, each relay having a digital processor and a memory for storing cycles of power system data;
a peer-to-peer communications network connected to exchange data messages between the plurality of protective relays; and a time standard operatively connected to each of the plurality of protective relays such that the plurality of protective relays is synchronized, wherein each of the plurality of protective relays synchronously records and stores cycles of power system data in response to the detection of a fault by one or more of the plurality of protective relays.
11. The system of claim 10, wherein each of the plurality of protective relays stores the same number of cycles of power system data in response to the detection of the fault.
12. The system of claim 10, wherein a detecting one of the plurality of protective relays transmits a message over the peer-to-peer communications network to inform other protective relays of the occurrence of the fault.
13. The system of claim 12, wherein the message includes a time tag indicative of a time associated with the fault.
14. The system of claim 10, wherein the message is communicated according to a Profibus protocol.
15. The system of claim 10, wherein the message is communicated according to an Ethernet protocol.
16. The system of claim 13, wherein the other protective relays determine which cycles of power system data to save based on the time tag in the message.
17. A protective relay, comprising:
a microprocessor arranged to receive and monitor power system data, to initiate communication over a peer-to-peer communications network to inform other protective relays of the occurrence of a power system event, and to receive communications from other protective relays indicating the occurrence of a power system event, each communication including a time tag of the power system event;
a memory associated with the microprocessor, the memory storing a first set of cycles of power system data in response to the occurrence of a power system event;
and an internal clock synchronized to internal clocks of other protective relays associated with the peer-to-peer communications network.
a microprocessor arranged to receive and monitor power system data, to initiate communication over a peer-to-peer communications network to inform other protective relays of the occurrence of a power system event, and to receive communications from other protective relays indicating the occurrence of a power system event, each communication including a time tag of the power system event;
a memory associated with the microprocessor, the memory storing a first set of cycles of power system data in response to the occurrence of a power system event;
and an internal clock synchronized to internal clocks of other protective relays associated with the peer-to-peer communications network.
18. The protective relay of claim 17, wherein the microprocessor, upon receiving a communication from other protective relays indicating the occurrence of a power system event, determines which cycles of power system data to store based on the time tag.
19. The protective relay of claim 17, wherein the communications are according to a Profibus protocol.
20. The protective relay of claim 17, wherein the communications are according to an Ethernet protocol.
21. The protective relay of claim 17, wherein the number of cycles of power system data is a predetermined number.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/275,347 | 1999-03-24 | ||
| US09/275,347 US6405104B1 (en) | 1999-03-24 | 1999-03-24 | Fault data synchronization via peer-to-peer communications network |
| PCT/US2000/006426 WO2000057527A1 (en) | 1999-03-24 | 2000-03-23 | Fault data synchronization via peer-to-peer communications network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2333105A1 true CA2333105A1 (en) | 2000-09-28 |
| CA2333105C CA2333105C (en) | 2012-02-14 |
Family
ID=23051905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2333105A Expired - Fee Related CA2333105C (en) | 1999-03-24 | 2000-03-23 | Fault data synchronization via peer-to-peer communications network |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6405104B1 (en) |
| EP (1) | EP1082797A1 (en) |
| JP (2) | JP4868645B2 (en) |
| CN (1) | CN1311603C (en) |
| AU (1) | AU759447B2 (en) |
| BR (1) | BR0005547A (en) |
| CA (1) | CA2333105C (en) |
| CZ (1) | CZ20004382A3 (en) |
| WO (1) | WO2000057527A1 (en) |
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- 2000-03-23 JP JP2000607312A patent/JP4868645B2/en not_active Expired - Fee Related
- 2000-03-23 CZ CZ20004382A patent/CZ20004382A3/en unknown
- 2000-03-23 AU AU37398/00A patent/AU759447B2/en not_active Ceased
- 2000-03-23 BR BR0005547-6A patent/BR0005547A/en not_active Application Discontinuation
- 2000-03-23 CN CN00800923.6A patent/CN1311603C/en not_active Expired - Fee Related
- 2000-03-23 EP EP00916267A patent/EP1082797A1/en not_active Withdrawn
- 2000-03-23 CA CA2333105A patent/CA2333105C/en not_active Expired - Fee Related
-
2010
- 2010-12-28 JP JP2010292011A patent/JP2011109911A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1082797A1 (en) | 2001-03-14 |
| WO2000057527A1 (en) | 2000-09-28 |
| CN1311603C (en) | 2007-04-18 |
| AU759447B2 (en) | 2003-04-17 |
| CN1310874A (en) | 2001-08-29 |
| AU3739800A (en) | 2000-10-09 |
| CA2333105C (en) | 2012-02-14 |
| CZ20004382A3 (en) | 2001-08-15 |
| JP4868645B2 (en) | 2012-02-01 |
| BR0005547A (en) | 2001-01-30 |
| US6405104B1 (en) | 2002-06-11 |
| JP2011109911A (en) | 2011-06-02 |
| JP2002540751A (en) | 2002-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160323 |