CN106656575B - A kind of method for diagnosing faults suitable for pilot protection multiplex channel - Google Patents
A kind of method for diagnosing faults suitable for pilot protection multiplex channel Download PDFInfo
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- CN106656575B CN106656575B CN201611046510.8A CN201611046510A CN106656575B CN 106656575 B CN106656575 B CN 106656575B CN 201611046510 A CN201611046510 A CN 201611046510A CN 106656575 B CN106656575 B CN 106656575B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
The invention discloses a kind of method for diagnosing faults suitable for pilot protection multiplex channel: step 1 defines channel failure diagnosis frame；Step 2, when an equipment in channel detects channel failure, then the equipment generate channel failure diagnose frame；Step 3, when the equipment is after receiving the data message of a upper equipment, delay Δ T time does not receive the channel failure diagnosis frame that an equipment is sent, then the equipment sends generated channel failure diagnosis frame to next equipment, otherwise, directly forward the channel failure received diagnosis frame to next equipment；Step 4, two sides protective device issue the alarm of channel failure point and fault type；Step 5, after the equipment monitoring for issuing channel failure diagnosis frame in channel restores normal to channel failure, which stops issuing channel failure diagnosis frame, the alarm of involution corresponding channel failure point and fault type after protective device delay time T.Greatly improve the efficiency of multiplex channel fault recovery.
Description
Technical field
The present invention relates to a kind of method for diagnosing faults suitable for pilot protection multiplex channel.
Background technique
With optical fiber pilot protection being widely used in power grid, channel failure happens occasionally, and channel is once broken down,
Running protection will move out operation, and protection and Communication Personnel must quickly judge channel failure point and fault type, and in time
It repairs.Since the intermediate link that multiplex channel is related to is more, wherein many links are responsible for by Office of the Telecommunications Authority, people is protected and communicated
Member is unfamiliar with equipment each other, the location difficulty of channel failure point.
Currently, domestic is to take the mode of links from ring in channel next to the common processing method of multiplex channel failure
Fault point, this process method step is various and inefficiency, and consuming time is long, it is also necessary to which protection staff is in two sides power transformation
In standing while testing.Domestic patent is concentrated mainly on the detection of channel performance and Channel Test equipment aspect, channel failure are examined
Disconnected patent is also the designated lane suitable for fiber direct connection, temporarily has not seen the patent or opinion in terms of multiplex channel fault diagnosis
Text.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of method for diagnosing faults suitable for pilot protection multiplex channel, it can
Automatic positioning channel failure point and determining channel failure type rapidly, greatly improve the efficiency of multiplex channel fault recovery, rapidly
Restore the operation of pilot protection.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
A kind of method for diagnosing faults suitable for pilot protection multiplex channel, which comprises the steps of:
Step 1, definition diagnose frame for the channel failure of channel failure diagnosis, and channel failure diagnosis frame includes device mark
Byte and channel failure type-byte, described device mark byte is used to identify the equipment for issuing channel failure diagnosis frame, described
Channel failure type-byte is for identifying channel failure type；All devices produce and issue channel failure diagnosis in channel
Frame；
Step 2, when fault-free in channel, in channel carry out data message transmission；When the equipment inspection in channel
When measuring channel failure, then the equipment generates channel failure and diagnoses frame, and enters step 3；
Step 3, when the equipment is after receiving the data message of a upper equipment, be delayed Δ T time, if when being delayed Δ T
In do not receive the channel failure diagnosis frame that equipment is sent, then the equipment send generated channel failure diagnosis frame to
Otherwise next equipment directly forwards the channel failure received diagnosis frame to next equipment；
Wherein, after the equipment issues the channel failure diagnosis frame of this equipment generation in channel, identifying that channel failure disappears
Channel failure diagnosis frame is constantly issued before losing according to constant time lag, if period receives the channel failure diagnosis of other equipment sending
Frame is then directly forwarded；
Step 4, after the protective device of side receives channel failure diagnosis frame, continue to forward channel failure diagnosis frame extremely
Opposite side protective device, two sides protective device issue the alarm of channel failure point and fault type；
Step 5, when in channel issue channel failure diagnosis frame equipment monitoring to channel failure restore normally after, the equipment
Stop issuing channel failure diagnosis frame, the report of involution corresponding channel failure point and fault type after protective device delay time T
It is alert.
It is preferred that in step 3, the equipment in channel receives after the fault diagnosis frame of this equipment last time sending not still further below one
This channel failure of a device forwards diagnoses frame.
It is preferred that Δ T is that a upper equipment issues maximum delay needed for channel failure diagnoses frame.
It is preferred that device mark byte includes multiple bits, and the equipment in the corresponding channel of each bit, initialization
When each bit position 0, when an equipment detects channel failure, then by corresponding bit position 1；Channel failure class type-word
Section includes multiple bits, the corresponding fault type of each bit, when initialization each bit position 0, when an equipment
When detecting channel failure type, then by corresponding bit position 1；Protective device is 1 in frame by reading channel failure and diagnosing
Byte position, find equipment and channel failure type in corresponding channel.
The beneficial effects of the present invention are:
The channel failure increased in transmitting message in multiplex channel dedicated for channel failure diagnosis diagnoses frame, in frame
Device mark byte and channel failure type-byte are inside defined, channel failure point can be automatically positioned rapidly and determines channel event
Hinder type, greatly improve the efficiency of multiplex channel fault recovery, restores the operation of pilot protection rapidly.
Detailed description of the invention
Fig. 1 is a definition schematic diagram of channel failure diagnosis frame of the present invention；
Fig. 2 is that apparatus of the present invention mark byte defines schematic diagram；
Fig. 3 is that channel failure byte of the present invention defines schematic diagram；
Fig. 4 is a kind of flow chart of the method for diagnosing faults suitable for pilot protection multiplex channel of the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment with reference to the accompanying drawing, so that ability
The technical staff in domain can better understand the present invention and can be practiced, but illustrated embodiment is not as to limit of the invention
It is fixed.
A kind of method for diagnosing faults suitable for pilot protection multiplex channel, includes the following steps:
The channel failure of step 1, definition for channel failure diagnosis diagnoses frame, as shown in Figure 1, channel failure diagnoses frame packet
Device mark byte and channel failure type-byte are included, described device mark byte, which is used to identify, issues channel failure diagnosis frame
Equipment, the channel failure type-byte is for identifying channel failure type.It is increased in transmitting message in multiplex channel specially
Door diagnoses frame for the channel failure of channel failure diagnosis, and all devices produce and issue channel failure diagnosis in channel
Frame.
Step 2, when fault-free in channel, in channel carry out data message (normal transmission message) transmission, i.e., normally
When operation, only has normal transmission message in channel, no channel failure diagnoses frame.
When an equipment in channel detects channel failure (position of the general equipment also closest to fault point),
Then the equipment generates channel failure and diagnoses frame, and enters step 3.
By taking Fig. 2 and 3 as an example, it includes multiple (being 8 in Fig. 2) bits that device, which indicates byte, each bit corresponding one
Equipment (including protective device) in a channel, when initialization each bit position 0, when an equipment detects channel failure
When, then by corresponding bit position 1.Channel failure type-byte includes multiple (being 8 in Fig. 2) bits, each bit
A corresponding fault type, when initialization, each bit position 0 then will be right when an equipment detects channel failure type
The bit position 1 answered.When an equipment detects channel failure in channel, which will generate channel failure and diagnose frame, and will
Device indicates corresponding position 1 in byte and channel failure type-byte.
Wherein, device mark byte and channel failure type-byte number can be according to number of devices in multiplex channel and logical
Road fault type extends.Specifically, device mark byte and channel failure type-byte pass through shown in FIG. 1 spare 1 respectively
It is extended with spare 2.
Step 3, when the equipment is after receiving the data message of normal transmission of a upper equipment, be delayed Δ T time, if
The channel failure diagnosis frame that an equipment is sent is not received in delay Δ T time, then the equipment sends generated channel event
Barrier diagnosis frame gives next equipment, otherwise, directly forwards the channel failure received diagnosis frame to next equipment.
In general, Δ T is that a upper equipment issues maximum delay needed for channel failure diagnoses frame, it is assumed that channel
Both ends are protective device 1 and protective device 2, sequentially there is equipment A, equipment B and equipment C between protective device 1 and protective device 2,
Then transmitted data sequence is protective device 1- equipment A- equipment B- equipment C- protective device 2- equipment C- equipment B- equipment in channel
A- protective device 1, and so on, then a upper equipment for each equipment and next equipment are then generated according to transmission line.
Wherein, after the equipment issues the channel failure diagnosis frame of this equipment generation in channel, identifying that channel failure disappears
Channel failure diagnosis frame is constantly issued before losing according to constant time lag, if period receives the channel failure diagnosis of other equipment sending
Frame is then directly forwarded.
Step 4, after the protective device of side receives channel failure diagnosis frame, continue to forward channel failure diagnosis frame extremely
Opposite side protective device, two sides protective device issue the alarm of channel failure point and fault type.Protective device is logical by reading
It is 1 byte position in road fault diagnosis frame, finds equipment and channel failure type in corresponding channel.
Step 5, when in channel issue channel failure diagnosis frame equipment monitoring to channel failure restore normally after, the equipment
Stop issuing channel failure diagnosis frame, involution is corresponding after not receiving the channel failure frame of the equipment in protective device delay time T
Channel failure point and fault type alarm.Whole flow process figure is as shown in Figure 4.
It is preferred that in step 3, the equipment in channel receives after the fault diagnosis frame of this equipment last time sending not still further below one
This channel failure of a device forwards diagnoses frame, so far forms a transmission ring.
The channel failure increased in transmitting message in multiplex channel dedicated for channel failure diagnosis diagnoses frame, in frame
Device mark byte and channel failure type-byte are inside defined, channel failure point can be automatically positioned rapidly and determines channel event
Hinder type, greatly improve the efficiency of multiplex channel fault recovery, restores the operation of pilot protection rapidly.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure made by bright specification and accompanying drawing content perhaps equivalent process transformation or be directly or indirectly used in other correlation
Technical field, be included within the scope of the present invention.
Claims (4)
1. a kind of method for diagnosing faults suitable for pilot protection multiplex channel, which comprises the steps of:
Step 1, definition diagnose frame for the channel failure of channel failure diagnosis, and channel failure diagnosis frame includes device mark byte
With channel failure type-byte, described device mark byte is used to identify the equipment for issuing channel failure diagnosis frame, the channel
Fault type byte is for identifying channel failure type；All devices produce and issue channel failure diagnosis frame in channel；
Step 2, when fault-free in channel, in channel carry out data message transmission；When an equipment in channel detects
When channel failure, then the equipment generates channel failure and diagnoses frame, and enters step 3；
Step 3, when the equipment is after receiving the data message of a upper equipment, be delayed Δ T time, if in delay Δ T time
The channel failure diagnosis frame that an equipment is sent is not received, then the equipment sends generated channel failure diagnosis frame to next
Otherwise a equipment directly forwards the channel failure received diagnosis frame to next equipment；
Wherein, after the channel failure that the equipment issues the generation of this equipment in channel diagnoses frame, before identifying that channel failure disappears
Channel failure diagnosis frame is constantly issued according to constant time lag, if period receives the channel failure diagnosis frame of other equipment sending,
Then directly it is forwarded；
Step 4, after the protective device of side receives channel failure diagnosis frame, continue to forward the channel failure to diagnose frame to opposite side
Protective device, two sides protective device issue the alarm of channel failure point and fault type；
Step 5, after the equipment monitoring for issuing channel failure diagnosis frame in channel restores normal to channel failure, equipment stopping
It issues channel failure and diagnoses frame, involution is corresponding logical after not receiving the channel failure frame of the equipment in protective device delay time T
The alarm of road fault point and fault type.
2. a kind of method for diagnosing faults suitable for pilot protection multiplex channel according to claim 1, which is characterized in that
In step 3, the equipment in channel receive after the fault diagnosis frame of this equipment last time sending not still further below device forwards this
Channel failure diagnoses frame.
3. a kind of method for diagnosing faults suitable for pilot protection multiplex channel according to claim 1, which is characterized in that
Δ T is that a upper equipment issues maximum delay needed for channel failure diagnoses frame.
4. a kind of method for diagnosing faults suitable for pilot protection multiplex channel according to claim 1, which is characterized in that
It includes multiple bits that device, which indicates byte, the equipment in the corresponding channel of each bit, when initialization each bit
0 is set, when an equipment detects channel failure, then by corresponding bit position 1；Channel failure type-byte includes multiple ratios
Special position, the corresponding fault type of each bit, when initialization each bit position 0, detect channel when an equipment therefore
When hindering type, then by corresponding bit position 1；Protective device is found by reading the byte position for being 1 in channel failure diagnosis frame
Equipment and channel failure type in corresponding channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611046510.8A CN106656575B (en) | 2016-11-23 | 2016-11-23 | A kind of method for diagnosing faults suitable for pilot protection multiplex channel |
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| CN201611046510.8A CN106656575B (en) | 2016-11-23 | 2016-11-23 | A kind of method for diagnosing faults suitable for pilot protection multiplex channel |
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| CN106656575A CN106656575A (en) | 2017-05-10 |
| CN106656575B true CN106656575B (en) | 2019-08-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111277327B (en) * | 2020-01-21 | 2021-10-01 | 国网四川省电力公司 | Line protection communication channel fault area identification method |
| CN111342893B (en) * | 2020-04-09 | 2023-03-31 | 中国南方电网有限责任公司超高压输电公司柳州局 | Channel fault point positioning method |
| CN112383351A (en) * | 2020-09-25 | 2021-02-19 | 国网浙江省电力有限公司丽水供电公司 | Method for rapidly identifying multiplexing channel fault section |
| CN113890184B (en) * | 2021-08-27 | 2024-08-09 | 北京四方继保工程技术有限公司 | Method for realizing fault location of longitudinal differential channel by adding monitoring information |
Citations (1)
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| CN103616598A (en) * | 2013-12-05 | 2014-03-05 | 国家电网公司 | Testing method for dynamic simulation of linkage between protective channel faults and line faults |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616598A (en) * | 2013-12-05 | 2014-03-05 | 国家电网公司 | Testing method for dynamic simulation of linkage between protective channel faults and line faults |
Non-Patent Citations (2)
| Title |
|---|
| 光纤纵联保护通道故障在线诊断方法;李响等;《电力系统保护与控制》;20160116;第44卷(第2期);第147-150页 |
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Address after: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee after: NR ELECTRIC Co.,Ltd. Patentee after: Super high voltage substation branch of State Grid Shanxi Electric Power Co. Patentee after: Shanxi Jingtian Jibao Power Co.,Ltd. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: Super high voltage substation branch of State Grid Shanxi Electric Power Co. Patentee before: TAIYUAN NANRUI JIBAO ELECTRIC POWER CO.,LTD. Address after: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee after: NR ELECTRIC Co.,Ltd. Patentee after: Super high voltage substation branch of State Grid Shanxi Electric Power Co. Patentee after: TAIYUAN NANRUI JIBAO ELECTRIC POWER CO.,LTD. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: Maintenance Branch of State Grid Shanxi Electric Power Company Patentee before: TAIYUAN NANRUI JIBAO ELECTRIC POWER CO.,LTD. |
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Effective date of registration: 20221102 Address after: 030000 Floor 3, No. 10, E-commerce Street, Xuefu Park, Taiyuan Comprehensive Reform Demonstration Zone, Shanxi Province Patentee after: Shanxi Jingtian Jibao Power Co.,Ltd. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: Super high voltage substation branch of State Grid Shanxi Electric Power Co. Patentee before: Shanxi Jingtian Jibao Power Co.,Ltd. |
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