CN106526431B - Ground connection and/or short trouble alarm inversion method and device - Google Patents
Ground connection and/or short trouble alarm inversion method and device Download PDFInfo
- Publication number
- CN106526431B CN106526431B CN201611254984.1A CN201611254984A CN106526431B CN 106526431 B CN106526431 B CN 106526431B CN 201611254984 A CN201611254984 A CN 201611254984A CN 106526431 B CN106526431 B CN 106526431B
- Authority
- CN
- China
- Prior art keywords
- ground connection
- short trouble
- path
- binary tree
- failure
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
Abstract
The present invention provides a kind of ground connection and/or short trouble alarm inversion methods and device, wherein this method comprises: obtaining ground connection and/or short trouble information；Record the time series of the ground connection and/or the generation of short trouble information；According to the time series that the ground connection and/or short trouble information occur, in preset failure path binary tree, the transmission path of the ground connection and/or short trouble information is found out；According to the transmission path, the source of trouble that ground connection and/or short trouble information occur at the first time is determined；Fault alarm is carried out to the source of trouble.The embodiment of the present invention solves the technical issues of source of trouble that can not effectively determine ground connection and/or short trouble in the prior art, has reached the technical effect of the source of trouble of simple and effective determining ground connection and/or short trouble, targetedly to alarm.
Description
Technical field
The present invention relates to overhead system technical field, in particular to a kind of ground connection and/or short trouble alarm inversion method
And device.
Background technique
In 10KV overhead transmission line, and fault warning (such as: ground connection alarm, short circuit alarm) it is general difficult to realize.At present
Common method has: Steady State Analysis, active injecting signal, transient analysis method etc..However, these methods are all single directions
Determination failure and carry out early warning, not from global system, without determining ground fault source or short trouble on the whole
Source etc., so that only will appreciate that there is currently fault warnings when people are based on existing fault warning, but and it is unclear
Chu does not know the transmission path in this On-line Fault road specifically as caused by which source of trouble yet.
As the above analysis, existing fault warning be only capable of provide ground connection and/or short trouble alarm as a result, still
Generating source and transmission path all can not effectively be shown, so that not knowing failure Producing reason, lead to not be had
Targetedly handle.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of ground connection and/or short trouble alarm inversion methods, to reach simple and effective true
The purpose of failure occurring source is made, this method comprises:
Obtain ground connection and/or short trouble information；
Record the time series of the ground connection and/or the generation of short trouble information；
According to the time series that the ground connection and/or short trouble information occur, in preset failure path binary tree,
Find out the transmission path of the ground connection and/or short trouble information；
According to the transmission path, the source of trouble that ground connection and/or short trouble information occur at the first time is determined；
It alarms the source of trouble.
Optionally, the failure path binary tree is preset in the following way, comprising:
Set monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；
Record pre-fault status machine matrix and post-failure state machine matrix；
In the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, and draws first path；
In the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, and draw the second path；
The monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix will be initialized, as
The failure path binary tree.
Optionally, the time series occurred according to the ground connection and/or short trouble information, in preset failure path two
In fork tree, the transmission path of the ground connection and/or short trouble information is found out, including；
According to the time series that the ground connection and/or short trouble information occur, matched with second path, with
Determine the transmission path of the ground connection and/or short trouble information.
Optionally, the first path and second path are identified by different colours.
Optionally, the value of the pre-fault status machine matrix include: each monitoring point measure in real time to earth electric field and line
The value of road electric current, the post-failure state machine matrix when including: failure each monitoring point to earth electric field and line current.
The embodiment of the invention also provides a kind of ground connection and/or short trouble alarm inverting devices, to reach simple and effective
Determine the purpose for the occurring source that is out of order, which includes:
Module is obtained, for obtaining ground connection and/or short trouble information；
Logging modle, for recording the time series of the ground connection and/or the generation of short trouble information；
Searching module, the time series for being occurred according to the ground connection and/or short trouble information, in preset failure
In the binary tree of path, the transmission path of the ground connection and/or short trouble information is found out；
For determining according to the transmission path ground connection and/or short trouble information occur at the first time for determining module
The source of trouble；
Alarm module, for alarming the source of trouble.
Optionally, above-mentioned ground connection and/or short trouble warning device further include: module is established, in the following way
Preset the failure path binary tree:
Set monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；
Record pre-fault status machine matrix and post-failure state machine matrix；
In the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, and draws first path；
In the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, and draw the second path；
The monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix will be initialized, as
The failure path binary tree.
Optionally, the searching module is specifically used for the time sequence occurred according to the ground connection and/or short trouble information
Column, are matched with second path, with the determination ground connection and/or the transmission path of short trouble information.
Optionally, the first path and second path are identified by different colours.
Optionally, the value of the pre-fault status machine matrix include: each monitoring point measure in real time to earth electric field and line
The value of road electric current, the post-failure state machine matrix when including: failure each monitoring point to earth electric field and line current.
In embodiments of the present invention, the time series occurred by record ground connection and/or short trouble information, in conjunction with default
Binary tree, determine out of order time path, may thereby determine that out the source of trouble alarmed at the first time, so as to
Solve can not effectively determine in the prior art ground connection and/or short trouble the source of trouble the technical issues of, having reached simply has
Effect determines the technical effect of the source of trouble of ground connection and/or short trouble, targetedly to alarm.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the method flow diagram of ground connection according to an embodiment of the present invention and/or short trouble alarm inversion method；
Fig. 2 is electric network state transfer schematic diagram according to an embodiment of the present invention；
Fig. 3 is failure logging sequence diagram according to an embodiment of the present invention；
Fig. 4 is failure inversion algorithm flow chart according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of ground connection according to an embodiment of the present invention and/or short trouble alarm inverting device.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
In this example, it is contemplated that can believe from global system viewpoint global analysis ground connection and/or short trouble source and failure
Number transmission path issues.To be turned according to the state that joined in the case where checking in the presence of ground connection and/or short trouble
It moves and the failure inversion algorithm of sequence of events, so that ground connection and/or short trouble out are restored in Field Force pole in which can be convenient
Generating process, to improve the accuracy of whole system ground connection and/or short trouble alarm.
As shown in Figure 1, provide in embodiments of the present invention it is a kind of ground connection and/or short trouble alarm inversion method, can
With the following steps are included:
Step 101: obtaining ground connection and/or short trouble information；
Step 102: recording the time series of the ground connection and/or the generation of short trouble information；
For example, the time of origin sequence for the fault message that record obtains are as follows: monitoring point A arrives monitoring point C to monitoring point B again,
So time series is exactly A- > B- > C.
Step 103: the time series occurred according to the ground connection and/or short trouble information, in preset failure path
In binary tree, the transmission path of the ground connection and/or short trouble information is found out；
The failure path binary tree can be establishes according to the following steps:
S1: setting monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；
S2: record pre-fault status machine matrix and post-failure state machine matrix；
S3: in the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, and draws the first via
Diameter；
S4: in the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, and draw the second tunnel
Diameter；
S5: will initialize the monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix,
As the failure path binary tree.
That is, selecting multiple monitoring points in same network segment, these monitoring points, pre-fault status machine matrix and event are then recorded
State machine matrix after barrier, thus path when drawing out failsafe and path when being out of order, the electric network state meeting in failure
It shifts, so as to realize the matching in failed transmission path, with the out of order transmission path of determination and the source of trouble.
Specifically, the time series that can be occurred according to ground connection and/or short trouble information, with the progress of the second path
Match, to determine the transmission path of ground connection and/or short trouble information.
In order to realize to before failure and the different demarcation of failure rear path, a kind of color can be used to the path before failure
Mark, to the path after failure using another color identifier.
Step 104: according to the transmission path, determining the failure that ground connection and/or short trouble information occur at the first time
Source；
Step 105: alarming the source of trouble.
For example, determine that the source of trouble is monitoring point A, then just alarming monitoring point A and key monitoring and place
Reason.
Above-mentioned ground connection and/or short trouble alarm inversion method are illustrated below with reference to a specific embodiment, however
It is worth noting that, the specific embodiment merely to the application is better described, does not constitute an undue limitation on the present application.
Assuming that all monitoring points of route are expressed as E (t) column vector to earth electric field, line current be expressed as I (t) arrange to
It measures, then all monitoring spot nets on this route can indicate earth electric field and line current are as follows:
E (t)=CE (t)
Wherein, A indicates that monitoring sytem matrix, B indicate that input matrix, C indicate output matrix and unit matrix.
The quantity of state E (t) of system is uncontrollable it can be seen from above-mentioned equation group, but can be observed.Because
Monitoring point is over the ground stable in 10KV system on electric field theory, is arbitrarily to shift for input current I (t)
The value of electric field.
Further, there is also following equation relationships:
I (t)=C1I (t)
It by equation group it can be seen that for monitoring point current vector, is not only controllable, and can observe.Cause
This, for monitoring point, the state of two important parameters (to earth electric field and line current) can all be observed.
Further, as shown in Fig. 2, S1 indicates that power failure, S2 indicate that power supply state, S3 indicate short-circuit condition, S4 table
Show that ground state, Fig. 2 show the possibility transfer process of above-mentioned several states.
Two following two element group representations of state can be used for each monitoring point on route:
Sa (E (t), I (t)) and Sb (E ' (t), I ' (t)).
Thus, it is possible to list two state machine matrixes, one of them is all monitoring point real-time measurement values state machine matrixes
Sa, the other is all monitoring point real-time measurement values derivative state machine matrix Sb, so as to construct the current shape of overhead transmission line
State machine matrix S (t).
It is exactly that state machine matrix by S (t1) is transferred to state machine matrix S (t2) when failure occurs.
In the forward position of short circuit, haveAnd E (t)=e；
In the forward position of ground connection, haveAnd I (t)=i.
Therefore, state machine matrix Sa and Sb can describe the operating status of power circuit, power grid at any time completely
State transfer, can be depicted with thus two matrixes and.
The power failure monitoring system alarm time that be averaged can control within 0.5~2 second, according to system hardware with
On the basis of the consistency of performance of Software Module Design, it can be assumed that the response time is a constant ε.
If the value of state machine matrix Sa and Sb are to be got by synchro measure result, and belong to the monitoring in the same network segment
The value of point.So, when electric power system fault occurs, according to the time sequencing of failure logging, so that it may from monitoring system y-bend
Fault message propagation path is known on tree graph, and field failure alarm phenomenon can be reproduced by software state machine mode completely.
Even if there is wrong report to generate, by failure inverting, failure source can also be found, so as to eliminate wrong report.
Assuming that event X indicates the failure of different moments, as shown in figure 3, recording faulty time record number.
Assuming that A point is grounded and/or short trouble, in practical situations, the propagation path of this fault-signal can
It can be B point-> C point-> D point.In terms of alarming result, D point is exactly wrong report in general sense.But in fact, according to alarm sequence,
With failure inverting, onsite alarming process and flash demo alarm sequence can be reproduced.In this way, Field Force is it may determine that A out
Point is the first alarm source and emphasis investigation failure.Thus, it is possible to release the alarm of D point, C point and B point.It can be seen that failure is anti-
This monitoring fault alarm method of algorithm can be adapted in the electric system of bidirectional power supply.
Specifically, a kind of failure inversion algorithm is provided, as shown in figure 4, may comprise steps of:
S1: specific monitoring point is demarcated as same network segment by setting monitoring point Binominal Tree；
S2: the synchronous value for calculating state machine matrix Sa and Sb updates overhead transmission line state machine matrix S (t), before recording failure
State machine matrix S (t1) and record post-failure state machine matrix S (t2)；
S3: the value of monitoring point pre-fault status machine matrix S (t1) is initialized on monitoring system Binominal Tree, draws route
Colouring information is the first pre-set color (for example, red)；
S4: the value of monitoring point post-failure state machine matrix S (t2) is initialized on monitoring system Binominal Tree, draws route
Colouring information is the second pre-set color (for example, green)；
S5: record fault message time of origin sequence, and identifying transmitting fault information path on Binominal Tree is second
Pre-set color realizes the switching of overhead transmission line malfunction；
S6: event of failure time series sequence is determined；
S7: step animation demonstrates the successive transmission path of fault message on Binominal Tree, realizes failure refutation process；, or
Person, the successive transmission path of automatic flash demo fault message on Binominal Tree realize failure refutation process；
S8: pre-fault status machine matrix S (t1) state is returned.
Based on the same inventive concept, additionally provided in the embodiment of the present invention it is a kind of ground connection and/or short trouble alarm inverting
Device, as described in the following examples.The principle solved the problems, such as due to ground connection and/or short trouble alarm inverting device and ground connection
And/or short trouble alarm inversion method is similar, therefore the implementation of ground connection and/or short trouble alarm inverting device may refer to
The implementation of ground connection and/or short trouble alarm inversion method, overlaps will not be repeated.It is used below, term " unit "
Or the combination of the software and/or hardware of predetermined function may be implemented in " module ".Although device described in following embodiment compared with
It is realized goodly with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.Fig. 5 is
A kind of structural block diagram of the ground connection of the embodiment of the present invention and/or short trouble alarm inverting device, as shown in figure 5, may include:
Module 501, logging modle 502, searching module 503, determining module 504 and alarm module 505 are obtained, the structure is carried out below
Explanation.
Module 501 is obtained, for obtaining ground connection and/or short trouble information；
Logging modle 502, for recording the time series of the ground connection and/or the generation of short trouble information；
Searching module 503, the time series for being occurred according to the ground connection and/or short trouble information, preset
In failure path binary tree, the transmission path of the ground connection and/or short trouble information is found out；
For determining according to the transmission path ground connection and/or short trouble letter occur at the first time for determining module 504
The source of trouble of breath；
Alarm module 505, for alarming the source of trouble.
In one embodiment, above-mentioned ground connection and/or short trouble warning device can also include: to establish module, use
In presetting the failure path binary tree in the following way:
S1: setting monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；
S2: record pre-fault status machine matrix and post-failure state machine matrix；
S3: in the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, and draws the first via
Diameter；
S4: in the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, and draw the second tunnel
Diameter；
S5: will initialize the monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix,
As the failure path binary tree.
In one embodiment, searching module 503 specifically can be used for according to the ground connection and/or short trouble information
The time series of generation is matched with second path, with the determination ground connection and/or the transmission road of short trouble information
Diameter.
In one embodiment, the first path and second path are identified by different colours.
In one embodiment, the value of the pre-fault status machine matrix includes: pair that each monitoring point measures in real time
The value of earth electric field and line current, the post-failure state machine matrix when including: failure each monitoring point to earth electric field and line
Road electric current.
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality
Apply technical solution described in mode.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should
Storage medium includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
It can be seen from the above description that the embodiment of the present invention realizes following technical effect: being grounded by record
And/or the time series that short trouble information occurs determines out of order time path in conjunction with preset binary tree, so as to
To determine the source of trouble alarmed at the first time, so as to solve effectively determine in the prior art ground connection with/
Or short trouble the source of trouble the technical issues of, reached the skill of the source of trouble of simple and effective determining ground connection and/or short trouble
Art effect, targetedly to alarm.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step can be with
It is realized with general computing device, they can be concentrated on a single computing device, or be distributed in multiple computing devices
On composed network, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by it
Store and be performed by computing device in the storage device, and in some cases, can be held with the sequence for being different from herein
The shown or described step of row, perhaps they are fabricated to each integrated circuit modules or will be multiple in them
Module or step are fabricated to single integrated circuit module to realize.In this way, the embodiment of the present invention be not limited to it is any specific hard
Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (4)
- The inversion method 1. a kind of ground connection and/or short trouble are alarmed characterized by comprisingObtain ground connection and/or short trouble information；Record the time series of the ground connection and/or the generation of short trouble information；It is searched in preset failure path binary tree according to the time series that the ground connection and/or short trouble information occur The transmission path of the ground connection and/or short trouble information out；According to the transmission path, the source of trouble that ground connection and/or short trouble information occur at the first time is determined；It alarms the source of trouble；Wherein, the failure path binary tree is preset in the following way, comprising:Set monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；Record pre-fault status machine matrix and post-failure state machine matrix；In the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, drawing route colouring information is the One pre-set color, obtains first path；In the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, drawing route colouring information is the Two pre-set colors obtain the second path, wherein the first path and second path are identified by different colours；The monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix will be initialized, as described Failure path binary tree；Wherein, the value of the pre-fault status machine matrix include: each monitoring point measure in real time to earth electric field and line current, The value of the post-failure state machine matrix when including: failure each monitoring point to earth electric field and line current.
- 2. the method according to claim 1, wherein according to it is described ground connection and/or short trouble information occur Time series finds out the transmission path of the ground connection and/or short trouble information in preset failure path binary tree, Including；According to the time series that the ground connection and/or short trouble information occur, by the first path and second path It is matched, with the determination ground connection and/or the transmission path of short trouble information.
- The inverting device 3. a kind of ground connection and/or short trouble are alarmed characterized by comprisingModule is obtained, for obtaining ground connection and/or short trouble information；Logging modle, for recording the time series of the ground connection and/or the generation of short trouble information；Searching module, the time series for being occurred according to the ground connection and/or short trouble information, in preset failure path In binary tree, the transmission path of the ground connection and/or short trouble information is found out；Determining module, for determining the failure that ground connection and/or short trouble information occur at the first time according to the transmission path Source；Alarm module, for alarming the source of trouble；Wherein, above-mentioned ground connection and/or short trouble alarm inverting device, further includes:Module is established, for presetting the failure path binary tree in the following way:Set monitoring point binary tree, wherein all monitoring sites in the binary tree are in same network segment；Record pre-fault status machine matrix and post-failure state machine matrix；In the monitoring point binary tree, the value of the pre-fault status machine matrix is initialized, drawing route colouring information is the One pre-set color, obtains first path；In the monitoring point binary tree, the value of the post-failure state machine matrix is initialized, drawing route colouring information is the Two pre-set colors obtain the second path, wherein the first path and second path are identified by different colours；The monitoring point binary tree of the pre-fault status machine matrix and the post-failure state machine matrix will be initialized, as described Failure path binary tree；Wherein, the value of the pre-fault status machine matrix include: each monitoring point measure in real time to earth electric field and line current, The value of the post-failure state machine matrix when including: failure each monitoring point to earth electric field and line current.
- 4. device according to claim 3, which is characterized in that the searching module be specifically used for according to it is described ground connection and/ Or the time series that short trouble information occurs, the first path is matched with second path, to connect described in determination The transmission path on ground and/or short trouble information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254984.1A CN106526431B (en) | 2016-12-30 | 2016-12-30 | Ground connection and/or short trouble alarm inversion method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254984.1A CN106526431B (en) | 2016-12-30 | 2016-12-30 | Ground connection and/or short trouble alarm inversion method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106526431A CN106526431A (en) | 2017-03-22 |
| CN106526431B true CN106526431B (en) | 2019-07-19 |
Family
ID=58335889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611254984.1A Active CN106526431B (en) | 2016-12-30 | 2016-12-30 | Ground connection and/or short trouble alarm inversion method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526431B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557414B (en) * | 2018-11-30 | 2021-04-13 | 国家电网有限公司技术学院分公司 | Fault diagnosis alarm processing system and method for integrated power system |
| CN114113874A (en) * | 2020-12-24 | 2022-03-01 | 孙杰 | Multi-branch power transmission line fault positioning method based on binary tree principle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581762A (en) * | 2009-05-07 | 2009-11-18 | 北京大学 | Delay fault testing method and system oriented to the application of FPGA |
| CN104486115A (en) * | 2014-12-11 | 2015-04-01 | 北京百度网讯科技有限公司 | Method and system for positioning fault |
| CN105629156A (en) * | 2016-03-10 | 2016-06-01 | 电子科技大学 | Genetic programming-based analog circuit fault test optimal sequential search method |
| CN106093678A (en) * | 2016-06-15 | 2016-11-09 | 国网福建省电力有限公司 | A kind of method quick and precisely diagnosing flexible direct current power transmission system converter fault |
-
2016
- 2016-12-30 CN CN201611254984.1A patent/CN106526431B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581762A (en) * | 2009-05-07 | 2009-11-18 | 北京大学 | Delay fault testing method and system oriented to the application of FPGA |
| CN104486115A (en) * | 2014-12-11 | 2015-04-01 | 北京百度网讯科技有限公司 | Method and system for positioning fault |
| CN105629156A (en) * | 2016-03-10 | 2016-06-01 | 电子科技大学 | Genetic programming-based analog circuit fault test optimal sequential search method |
| CN106093678A (en) * | 2016-06-15 | 2016-11-09 | 国网福建省电力有限公司 | A kind of method quick and precisely diagnosing flexible direct current power transmission system converter fault |
Non-Patent Citations (1)
| Title |
|---|
| 基于图论的配电网故障行波定位新算法;王阳 等;《电力系统自动化》;20120925;第36卷(第18期);正文第2.1、3.3节，图4、6 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106526431A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104483601B (en) | A kind of electrical power distribution network fault location method based on fault detector | |
| JP6117996B2 (en) | Virtual network mapping protection method, system, and computer storage medium | |
| CN205620501U (en) | Join in marriage power system fault early warning system | |
| CN106526431B (en) | Ground connection and/or short trouble alarm inversion method and device | |
| CN108141390A (en) | For managing the system and method based on cloud of message operated about cable testing equipment | |
| CN104123407B (en) | A kind of testability model auto-creating method based on circuit simulation | |
| US20140244776A1 (en) | Device, and method and system for monitoring multiple devices | |
| CN103077325B (en) | Based on the intelligent grid bad data detection of adaptive partition state estimation | |
| CN104777401A (en) | Power grid fault positioning method | |
| CN107113191A (en) | Inline data bag in data center's structural network is followed the trail of | |
| CN106546875B (en) | Electric power line alarm method | |
| CN104502799B (en) | Mining high-voltage electric-network short fault location automatic identifying method based on quantum communications | |
| US20180241629A1 (en) | Virtual network monitoring system, virtual network monitoring method, and recording medium | |
| CN109981450A (en) | Path is connected to maintaining method, device and system | |
| KR101452979B1 (en) | Fault recorder having fault localization function using accident data of both ends in power system line, fault localization system comprising the same and method for controlling the same | |
| CN105741475B (en) | Redundant distributed optical fiber line type temperature-sensing fire detection method and system | |
| CN104579717B (en) | DCN Fault Locating Method and device | |
| TW201517556A (en) | Network status visualization systems and methods | |
| CN106446311B (en) | CPU warning circuit and alarm method | |
| CN104898022B (en) | A kind of online fault location system and method for high-speed railway high pressure full cable perforation circuit | |
| CN104217558B (en) | Distributed optical fiber sensing alarm system and data obtaining and processing method thereof | |
| CN104777399A (en) | Three-dimensional digitalized monitoring device and method for substation grounding grid | |
| CN107529099A (en) | A kind of electrical harnesses frame control system based on RFID | |
| CN113537825A (en) | Operation and maintenance state monitoring and processing method, system, device and storage medium | |
| CN107332709B (en) | Fault positioning method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210823 Address after: 710000 room 1401, 14 / F, Xi'an Science and technology Northwest Building, No. 532, Shenzhou Third Road, national civil aerospace industry base, Xi'an, Shaanxi Province Patentee after: Shaanxi ximeilei Information Technology Co.,Ltd. Address before: Room 405-26, 4th floor, block a, building 1, yard 2, Yongcheng North Road, Haidian District, Beijing 100094 Patentee before: BEIJING DINGKE YUANTU TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 710000, Room 2801, Unit 1, Building 7, Hangdu Oasis, Shenzhousan Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province Patentee after: Shaanxi Yinghao Power Technology Co.,Ltd. Address before: 710000 room 1401, 14 / F, Xi'an Science and technology Northwest Building, No. 532, Shenzhou Third Road, national civil aerospace industry base, Xi'an, Shaanxi Province Patentee before: Shaanxi ximeilei Information Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |