CN101752908A - Method for distributed wave recording of intelligent substation - Google Patents
Method for distributed wave recording of intelligent substation Download PDFInfo
- Publication number
- CN101752908A CN101752908A CN201010034268A CN201010034268A CN101752908A CN 101752908 A CN101752908 A CN 101752908A CN 201010034268 A CN201010034268 A CN 201010034268A CN 201010034268 A CN201010034268 A CN 201010034268A CN 101752908 A CN101752908 A CN 101752908A
- Authority
- CN
- China
- Prior art keywords
- recording
- period
- record ripple
- data
- wave
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a method for distributed wave recording of an intelligent substation, which adopts a data sharing network of the analog quantity, the state quantity and the signal quantity of an intelligent substation to distribute and integrate the fault wave recording function into a spacer layer protection device and to transmit recorded wave data files to a fault information sub-station for analysis of the technical personnel through the communication of the network in the spacer layer equipment and the fault information sub-station in the intelligent substation. The method requires no additional network communication equipment, thereby simplifying the secondary design of the substation. Due to the integrated design with the protection device, the wave recording strategy adopted in the method is more applicable to protection of professional needs, and the method has the value of practical application. The engineering practice shows that the method has advanced and practical features and is suitable for application of each voltage level in the intelligent substation.
Description
Technical field
The invention belongs to the technical field of Power System Intelligent transformer station, be specifically related to the method for intelligent substation failure wave-recording.
Background technology
Along with the develop rapidly of the computer technology and the network communications technology, electric power system has entered the digitizing technique epoch.Transformer station is as the node of electrical network, and the development of its digitizing technique has become the pith of intelligent grid development.
IEC61850 is based on the unique international standard of electric substation automation system of universal network communication platform, has represented the development trend of automatic technology.
In recent years along with the fast development of electronic mutual inductor technology, digital protection technology, and the practice throughout the country of each electric company, many experiences and achievement that digital transformer substation is built obtained.
The failure wave-recording of electric power system is mainly used in record and analyzes the change procedure of the related electrical parameters after electric power system disturbance (as short trouble, disconnection fault, system oscillation, electric voltage frequency collapse etc.) takes place and the action behavior of relaying protection and automatic safety device.
The birth of digital transformer substation has brought many technological changes.Certainly, proposed complete brand-new requirement, also be faced with the opportunity of new technical development and innovation simultaneously for the wave recording device of routine for the design of transformer station's failure wave-recording function.
Current, the centralized record ripple of the general employing of transformer station's failure wave-recording function, its main cause is:
(1) distributed wave recording of using at present is actually a kind of function between failure wave-recording and emergency review, although a lot of producer is referred to as failure wave-recording, it does not satisfy request of national standard.Since can not the synchronous recording protected circuit or equipment beyond All other routes or the waveform and the sampled data of device electrical parameters, therefore be unfavorable for fault is carried out the analysis of system.
(2) record ripple owing to be distributed to each protective device; be confined to the size of internal memory, if device is not when sending the data to local supervisory control system or fault message substation, system has disturbance again; may cause previous data to be capped, therefore need hardware that jumbo internal memory is arranged.
But also there is following shortcoming in centralized record ripple:
(1) generally need dispose many oscillographs, also be not quite similar according to the equipping rules of various places and the discrepant quantity of transformer substation construction scale for 220kV and above transformer station.Because every oscillograph has separately CPU and sampling system, therefore the data sampling at full station is nonsynchronous, has certain error.
(2) according to the anti-requirement of arranging; the CT of fault oscillograph is different windings with the CT of protection; therefore must give fault oscillograph by the independent one group of CT of each arranged spaced, cause to play the CT secondary circuit of protection the effect of supervision, also increase the complexity of the investment and the design of transformer station.
, bring certain difficulty for centralized failure wave-recording, but established solid foundation along with the technology of the communication technology, electronic mutual inductor, the The Application of Technology of intelligent high-pressure electrical equipment at intelligent substation for the distributing failure wave-recording.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention discloses a kind of intelligent substation distributing that is used for
The method of record ripple.The present invention is specifically by the following technical solutions:
A kind of method that is applicable to intelligent substation distributing failure wave-recording; this method is utilized the data sharing network of intelligent substation analog quantity, quantity of state, semaphore; the failure wave-recording function is disperseed to be integrated in the wall protective device; by the network of bay device and the fault message substation communication in the transformer station; the recorder data file is sent to the fault message substation; analyze for the technical staff, said method comprising the steps of:
(1) the distributed wave recording plug-in unit is installed in every protective device of described intelligent substation wall;
(2) trigger the distributed wave recording plug-in unit and carry out failure wave-recording, described failure wave-recording was carried out in proper order by the following period:
The record ripple triggers the beginning status data of preceding period,
The record ripple triggers the status data of first period of back,
The record ripple triggers the status data of second period of back,
Wherein, second period followed closely after first period, and the time of second period, the sample frequency of second period was less than the sample frequency of first period greater than the time of first period;
(3) in triggering the failure wave-recording process of startup, when appearance triggers startup to described distributed wave recording plug-in unit once more again towards general object transformer substation case GOOSE breaker tripping and closing order, when if current record ripple is in described first period, according to repeating the record ripple from first period period to the second;
When if the record ripple is in described second period, according to the record ripple trigger period before the beginning, record ripple trigger first period of back, the record ripple triggers the order of second period of back and repeats the record ripple;
(4) termination of failure wave-recording: when described failure wave-recording time during greater than setting recording time and the involution of the whole group of protection, failure wave-recording stops;
(5) record ripple file is uploaded: record ripple file is uploaded to the fault message substation by the station level network with the recorder data file.
The system diagram of distributing failure wave-recording as shown in Figure 3.
The distributing failure wave-recording is realized mainly that the analog data at this interval obtains with GOOSE message reception information and is carried out classified and stored and merge cells (MU) communications status discrimination function.
The recorded type of failure wave-recording of the present invention is preferred:
A, analog quantity: record ripple plug-in unit links to each other with the intelligent analog quantity sampled value SMV of transformer station net, accepts from the online data of the sampled value SMV at this interval, and the data sync of standing entirely depends on MU, so data have synchronism.The analog quantity quality: defined the sampled data state among the IEC61850-9-1, comprised information such as whether synchronous the validity, MU of sampling channel having comprised these information in the sample data frames, these features are referred to as the analog quantity quality.Device receives the moment of sample frame, enclose a current time (hardware 16 digit counters when needing communication cpu to receive each sample frame, with us is unit, connect after the synchronisation source, this is 0～4800 cyclic variation (sample rate is 4.8k) constantly), record ripple CPU should be constantly as the analog quantity storage, record ripple, the analysis of the data of being convenient to stand entirely.
B, quantity of state information: the GOOSE plug-in unit of protective device and GOOSE net links to each other, from opening into information of this interval of the intelligent operation box collection of GOOSE net reception GOOSE plug-in unit broadcast transmission, comprises control box breaker tripping and closing information.GOOSE plug-in unit communication in failure wave-recording plug-in unit and the protective device obtains these information.
The Starting mode of failure wave-recording of the present invention is preferred:
A, protective device can send notice when starting, and the record ripple CPU in the distributed wave recording plug-in unit triggers the record ripple after receiving starting command.
The GOOSE that b, protective device action are sent leaves signal enabling record ripple.
Record ripple CPU in c, the distributed wave recording plug-in unit receives the quantity of state startup record ripple that the GOOSE net sends.According to record ripple definite value be provided with selection " *
* open into triggering record ripple input/withdraw from ".
D, start definite value by setting current and voltage jump amount, the sudden change amount of carrying out phase current and phase voltage starts to be differentiated.
E, assign starting command by transformer station's station level equipment and start the record ripple.
The recording mode of failure wave-recording of the present invention is preferred:
The recording mode of a, recorder data is as shown in Figure 4:
B, concrete recording mode
The record ripple triggers the preceding period of beginning, and the called after A period in this patent: the record ripple triggers the status data before the beginning, exports high speed original record waveform, 40～100ms writing time (can adjust), sample rate 4800 point/seconds (96 points of ripple weekly).
The record ripple triggers first period of back, the called after B period in this patent: the record ripple triggers the status data at back initial stage, output high speed original record waveform, 100～1000ms writing time (can adjust), sample rate 4800 point/seconds (96 points of ripple weekly).
The record ripple triggers second period of back, the called after C period in this patent: long-time recorder data, and output low speed original record waveform, ripple writes down 1 point data (effective value) weekly, and writing time is greater than 2s.
The preferred following mode of the recording process of failure wave-recording of the present invention:
A, startup for the first time
When meeting arbitrary entry condition, begin constantly to carry out the record ripple in proper order by the A-B-C period by S.
B, repeated priming
In the process that starts record, when GOOSE breaker tripping and closing order is arranged again,, then constantly begin to repeat thus along the B-C period if in the B period; If in the C period, begin constantly to repeat by the A-B-C period by S.
The automatic end condition of failure wave-recording of the present invention is preferably as follows:
A, writing time＞3s and the involution of the whole group of protection.
B, lose the processing of sample frame
The sampled data that the real recorder of record ripple CPU is arrived is not derived and is asked for the sample frame data of losing, and therefore the discontinuous situation of sampling label can occur in AB section recorder data, and the sampling label that lacks is the sampled data of losing.
The distributed wave recording of intelligent substation method that the present invention proposes does not need to increase the Secondary Design that any network communication apparatus has been simplified transformer station.This method adopts and the protective device integrated design simultaneously, and the record ripple strategy that is adopted is more suitable for protecting the needs of specialty, therefore has the value of practical application.Engineering practice shows that this method has the characteristics of advance, practicality, is applicable to the application scenario of each electric pressure of intelligent substation.
Description of drawings
Figure 1 shows that the SMV networking diagram;
Figure 2 shows that the GOOSE networking diagram;
Figure 3 shows that distributing fault recording system figure;
Figure 4 shows that record ripple sequential chart.
Specific embodiments
Below according to Figure of description and in conjunction with specific embodiments to the further detailed presentations of technical scheme of the present invention.
Intelligent transformer station analog quantity sample frequency is very high, forms the network of a sampled value SMV usually, hereinafter to be referred as the SMV net, as shown in Figure 1.Quantity of state is formed towards general object transformer substation case GOOSE net, hereinafter to be referred as the GOOSE net, as shown in Figure 2.
Because the wall protective device can obtain the analog quantity and the quantity of state at full station from SMV and GOOSE net, therefore adopt the distributing failure wave-recording very convenient.
All at interval route protection and protection equipment for transformer in increase a distributed wave recording plug-in unit, record ripple plug-in unit has jumbo record ripple storage, stores 20 record ripples simultaneously.Fault message substation system of full station configuration obtains recorder data in case the covering of data from cell device in real time.
The distributing fault recording system is as shown in Figure 3: the technical program record ripple adopts distributing; do not need reconstructed network; be divided into three layers; fault message substation access station control layer network; the distributed wave recording plug-in unit of realizing the record wave energy is dispersed in the wall protection equipment, carries out failure wave-recording and forms behind the file by sending on the station level network.
The distributed wave recording plug-in unit is a plug-in unit of protective device, and the main sampled data and the GOOSE message reception information that receive merge cells (MU) of realizing is carried out classified and stored; Possess hardware check function, MU communications status discrimination function simultaneously.
(1) type of record data
A, analog quantity: from the SMV net at this interval, the data sync of standing entirely depends on MU, so data have synchronism.
B, analog quantity quality: defined the sampled data state among the IEC61850-9-1, comprised information such as whether synchronous the validity, MU of sampling channel having comprised these information in the sample data frames.Device receives the moment of sample frame, enclose a current time (hardware 16 digit counters when needing communication cpu to receive each sample frame, with us is unit, connect after the synchronisation source, this is 0～4800 cyclic variation (sample rate is 4.8k) constantly), record ripple CPU should be constantly as the analog quantity storage, record ripple, the analysis of the data of being convenient to stand entirely.
C, quantity of state information: receive the opening of this interval of the intelligent operation box collection of GOOSE plug-in unit broadcast transmission from GOOSE net, comprise control box breaker tripping and closing information into information.
(2) start the mode of recording ripple
Can send when a) protection starts and trigger the record ripple after notice record ripple CPU receives starting command.
B) GOOSE that protects action to send leaves signal enabling record ripple.
C) receive the quantity of state startup record ripple that the GOOSE net sends.According to record ripple definite value selections " * * open into triggering and record ripple input/withdraw from " is set.
D) start definite value by setting current and voltage jump amount, the sudden change amount of carrying out phase current and phase voltage starts to be differentiated.
E) assign starting command by the backstage and start the record ripple.
(3) recording mode of record ripple
The recording mode of recorder data is as shown in Figure 4:
Concrete recording mode is as follows:
The A period: the record ripple triggers the status data before the beginning, output high speed original record waveform, 40～100ms writing time (can adjust), sample rate 4800 point/seconds (96 points of ripple weekly).
The B period: the record ripple triggers the status data at back initial stage, output high speed original record waveform, 100～1000ms writing time (can adjust), sample rate 4800 point/seconds (96 points of ripple weekly).
The C period: long-time recorder data, output low speed original record waveform, ripple writes down 1 point data (effective value) weekly, and writing time is greater than 2s.
(4) recording process
Start for the first time:
When meeting arbitrary entry condition, begin constantly to carry out the record ripple in proper order by the A-B-C period by S.
Repeated priming:
In the process that starts record, when GOOSE breaker tripping and closing order is arranged again,, then constantly begin to repeat thus along the B-C period if in the B period; If in the C period, begin constantly to repeat by the A-B-C period by S.
(5) automatic end condition
Writing time＞3s and the involution of the whole group of protection.
Lose the processing of sample frame:
The sampled data that the real recorder of record ripple CPU is arrived is not derived and is asked for the sample frame data of losing, and therefore the discontinuous situation of sampling label can occur in AB section recorder data, and the sampling label that lacks is the sampled data of losing.
Claims (6)
1. method that is used for the distributing failure wave-recording of intelligent substation; this method is utilized the data sharing network of intelligent substation analog quantity, quantity of state, semaphore; the failure wave-recording function is disperseed to be integrated in the wall protective device; by the network of bay device and the fault message substation communication in the transformer station; the recorder data file is sent to the fault message substation; analyze for the technical staff, it is characterized in that, said method comprising the steps of:
(1) the distributed wave recording plug-in unit is installed in every protective device of described intelligent substation wall;
(2) trigger the distributed wave recording plug-in unit and carry out failure wave-recording, described failure wave-recording was carried out in proper order by the following period:
The record ripple triggers the beginning status data of preceding period,
The record ripple triggers the status data of first period of back,
The record ripple triggers the status data of second period of back,
Wherein, second period followed closely after first period, and the time of second period, the sample frequency of second period was less than the sample frequency of first period greater than the time of first period;
(3) in triggering the failure wave-recording process of startup, when appearance makes once more that towards general object transformer substation case GOOSE breaker tripping and closing order described distributed wave recording plug-in unit triggers startup again, when if current record ripple is in described first period, according to repeating the record ripple from first period period to the second;
When if the record ripple is in described second period, according to the record ripple trigger period before the beginning, record ripple trigger first period of back, the record ripple triggers the order of second period of back and repeats the record ripple;
(4) termination of failure wave-recording: when described failure wave-recording time during greater than setting recording time and the involution of the whole group of protection, failure wave-recording stops;
(5) record ripple file is uploaded: record ripple file is uploaded to the fault message substation by the station level network with the recorder data file.
2. the method for distributing failure wave-recording according to claim 1 is characterized in that, the type of record data comprises:
Analog quantity: from the intelligent analog quantity sampled value SMV of the transformer station net of described distributed wave recording plug-in unit place wall, analog data has synchronism; Analog quantity quality: defined the sampled data state among the IEC61850-9-1, comprised that whether the validity of sampling channel, merge cells MU is synchronous, comprised these analog quantity quality information in the sample data frames;
Quantity of state information: from receive towards general object transformer substation case GOOSE net GOOSE plug-in unit broadcast transmission by the opening of this wall of intelligent operation box collection into information, comprise control box breaker tripping and closing information.
3. the method for distributing failure wave-recording according to claim 1 is characterized in that, the mode that the distributed wave recording plug-in unit carries out failure wave-recording startup record ripple comprises:
Send notice when protective device starts, the record ripple CPU in the distributed wave recording plug-in unit triggers the record ripple after receiving starting command;
The GOOSE that the protective device action is sent leaves signal enabling record ripple;
Record ripple CPU in the distributed wave recording plug-in unit receives the quantity of state startup record ripple that the GOOSE net sends;
Start definite value by setting current and voltage jump amount, the sudden change amount of carrying out phase current and phase voltage starts the record ripple;
Assign starting command by transformer station's station level equipment and start the record ripple.
4. the method for distributing failure wave-recording according to claim 1 is characterized in that:
During status data before the record ripple triggers beginning, writing time preferred 40～100ms, 4800 point/seconds of sample rate;
When the record ripple triggers the status data of first period of back, writing time preferred 100～1000ms,, 4800 point/seconds of sample rate;
When the record ripple triggered the status data of second period of back, preferably ripple write down 1 point data weekly, and writing time is greater than 2s.
5. the method for distributing failure wave-recording according to claim 1 is characterized in that:
Described setting recording time＞3s.
6. the method for distributing failure wave-recording according to claim 1 is characterized in that:
Described distributing failure wave-recording plug-in unit is recorded the sampled data that receives truly, does not derive and asks for the sample frame data of losing, and when the discontinuous situation of sampling label occurring in recorder data, the sampling label that is lacked is the sampled data of losing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034268A CN101752908B (en) | 2010-01-19 | 2010-01-19 | Method for distributed wave recording of intelligent substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034268A CN101752908B (en) | 2010-01-19 | 2010-01-19 | Method for distributed wave recording of intelligent substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101752908A true CN101752908A (en) | 2010-06-23 |
| CN101752908B CN101752908B (en) | 2012-10-03 |
Family
ID=42479450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010034268A Active CN101752908B (en) | 2010-01-19 | 2010-01-19 | Method for distributed wave recording of intelligent substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101752908B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035260A (en) * | 2010-12-17 | 2011-04-27 | 国电南瑞科技股份有限公司 | Intelligent warning and fault analysis realizing method for intelligent transformer substation monitoring system |
| CN103516055A (en) * | 2013-10-22 | 2014-01-15 | 武汉国电武仪电气股份有限公司 | Monitoring method for merging unit state of intelligent transformer station |
| CN103827678A (en) * | 2011-06-30 | 2014-05-28 | Abb研究有限公司 | Method for distributed waveform recording in a power distribution system |
| CN103840554A (en) * | 2014-03-04 | 2014-06-04 | 国电南京自动化股份有限公司 | Distributed type fault recording and network analyzing system of intelligent substation |
| CN104064982A (en) * | 2014-06-19 | 2014-09-24 | 国家电网公司 | Multi-dimensional display method for intelligent substation failure information |
| CN104297580A (en) * | 2013-07-18 | 2015-01-21 | 国家电网公司 | Method and system used for detecting hard contact input amount resolution of intelligent terminal |
| CN111276929A (en) * | 2020-02-27 | 2020-06-12 | 厦门盈盛捷电力科技有限公司 | Information recording method for fault expert diagnosis of power system |
| CN112147447A (en) * | 2020-09-27 | 2020-12-29 | 广东电网有限责任公司佛山供电局 | Recording triggering method and system used in relay protection device test based on input amount |
| CN113075502A (en) * | 2021-03-29 | 2021-07-06 | 深圳供电局有限公司 | Fault oscillograph |
-
2010
- 2010-01-19 CN CN201010034268A patent/CN101752908B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035260A (en) * | 2010-12-17 | 2011-04-27 | 国电南瑞科技股份有限公司 | Intelligent warning and fault analysis realizing method for intelligent transformer substation monitoring system |
| CN103827678A (en) * | 2011-06-30 | 2014-05-28 | Abb研究有限公司 | Method for distributed waveform recording in a power distribution system |
| CN104297580A (en) * | 2013-07-18 | 2015-01-21 | 国家电网公司 | Method and system used for detecting hard contact input amount resolution of intelligent terminal |
| CN103516055A (en) * | 2013-10-22 | 2014-01-15 | 武汉国电武仪电气股份有限公司 | Monitoring method for merging unit state of intelligent transformer station |
| CN103516055B (en) * | 2013-10-22 | 2015-08-26 | 武汉国电武仪电气股份有限公司 | The monitoring method of Intelligent substation merging unit state |
| CN103840554A (en) * | 2014-03-04 | 2014-06-04 | 国电南京自动化股份有限公司 | Distributed type fault recording and network analyzing system of intelligent substation |
| CN103840554B (en) * | 2014-03-04 | 2015-12-30 | 国电南京自动化股份有限公司 | A kind of intelligent substation distributed fault record ripple and network analysis system |
| CN104064982A (en) * | 2014-06-19 | 2014-09-24 | 国家电网公司 | Multi-dimensional display method for intelligent substation failure information |
| CN104064982B (en) * | 2014-06-19 | 2016-03-30 | 国家电网公司 | A kind of methods of exhibiting of intelligent substation fault message |
| CN111276929A (en) * | 2020-02-27 | 2020-06-12 | 厦门盈盛捷电力科技有限公司 | Information recording method for fault expert diagnosis of power system |
| CN111276929B (en) * | 2020-02-27 | 2022-07-26 | 厦门盈盛捷电力科技有限公司 | Information recording method for fault expert diagnosis of power system |
| CN112147447A (en) * | 2020-09-27 | 2020-12-29 | 广东电网有限责任公司佛山供电局 | Recording triggering method and system used in relay protection device test based on input amount |
| CN112147447B (en) * | 2020-09-27 | 2021-10-08 | 广东电网有限责任公司佛山供电局 | Wave recording triggering method and system of relay protection device based on input amount |
| CN113075502A (en) * | 2021-03-29 | 2021-07-06 | 深圳供电局有限公司 | Fault oscillograph |
| CN113075502B (en) * | 2021-03-29 | 2024-02-23 | 深圳供电局有限公司 | Fault recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101752908B (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101752908B (en) | Method for distributed wave recording of intelligent substation | |
| CN108414849B (en) | Intelligent substation automatic test system and method | |
| CN101854080B (en) | Digitalized fault wave recording device | |
| CN104539473B (en) | Intelligent substation network virtual secondary circuit whole group of method of calibration and system | |
| CN102937685B (en) | The integrated testing platform of a kind of transformer station based on Real-time Simulation Technology | |
| CN103827678A (en) | Method for distributed waveform recording in a power distribution system | |
| CN102710012B (en) | Data resynchronization method for analyzing fault waveform of intelligent transformer substation | |
| CN109103880A (en) | The emulation of intelligent substation panorama and test macro | |
| CN105093033A (en) | Power grid multi-source information-based fault integrated analysis system and analysis method | |
| CN108205096B (en) | Multisource fault data analysis method based on active time correction | |
| CN110378061B (en) | Multi-simulation tool collaborative simulation method and device for extra-high voltage direct current converter station | |
| CN107741549A (en) | The intelligent substation synchronism tester synchronously occurred based on analog quantity and digital quantity | |
| CN106647703A (en) | Power fault intelligent analysis and inversion system and method | |
| CN106208368A (en) | A kind of Transformer Faults Analysis system and method based on dispatching comprehensive data platform | |
| CN107092198A (en) | Fault analysis method and system for high-voltage direct-current transmission system | |
| CN103812216B (en) | A kind of regional power grid temporary overvoltage monitoring system | |
| CN1972287B (en) | Communication protocol record analysis apparatus and its analysis method | |
| CN111276929B (en) | Information recording method for fault expert diagnosis of power system | |
| CN108445322A (en) | A kind of relay protection fault back method | |
| CN108445321A (en) | A kind of relay protection fault intelligence Wave record method | |
| CN113595245B (en) | Testing system and method of accurate load control system based on 5G communication | |
| CN106546854A (en) | A kind of combining unit for supporting to record wave energy | |
| CN110672969A (en) | On-site line protection device field test system | |
| CN101710458A (en) | Method for grid steady simulating way recorded on the basis of real-time event sequence | |
| CN209460598U (en) | A kind of message and fault recorder data acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |