CN101751389A - Steady state data search method for transformer - Google Patents
Steady state data search method for transformer Download PDFInfo
- Publication number
- CN101751389A CN101751389A CN200810163399A CN200810163399A CN101751389A CN 101751389 A CN101751389 A CN 101751389A CN 200810163399 A CN200810163399 A CN 200810163399A CN 200810163399 A CN200810163399 A CN 200810163399A CN 101751389 A CN101751389 A CN 101751389A
- Authority
- CN
- China
- Prior art keywords
- data
- transformer
- steady state
- search method
- stable state
- 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.)
- Pending
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a steady state data search method for a transformer, which is suitable for searching data continuously recorded by the transformer based on sampling values. The invention solves the defects of low search efficiency and the like of the prior art. The steady state data search method comprises the steps of: continuously recording electric network operation data by adopting a steady state recording device, generating indexes of abnormal and fault data related to the transformer in the monitoring range in real time, and extracting corresponding data according to abnormal and fault events. The invention forms data indexes while acquiring the data, has good real-time and high search efficiency, can filter the influences of other interferences, and directly positions required data.
Description
[technical field]
The present invention relates to a kind of method of retrieving transformer stable state record ripple, be applicable to based on the continuous recording data retrieval of the transformer of sampled value.
[background technology]
Transformer stable state record ripple is in order to the analysis of failure situation, and the parameter of each side operation of its continuous recording transformer saves as target page of data when having with data.Theoretically, under the situation that adopts unified clock, can accurately extract the data that need according to the time.But in the practical application and since GPS time service device self, signal cable, intelligent apparatus (IED) to the time problem such as interface cause the clock of each IED inconsistent, at this moment, search just unusual difficulty of data.
Another kind method is that built-in starting element carries out mark to data, but sensitive because of its starting element action, the disturbance in the operation of power networks process outside normal load fluctuation, the monitoring range all can be got off by mark, and data markers is too redundant.Like this, in order to find the data that need, have to the data Analysis and Screening further of mark, recall precision is lower.
[summary of the invention]
In order to overcome the above-mentioned defective that exists in the prior art, the invention provides a kind of steady state data search method for transformer, generate data directory in real time, come the influence of other disturbances of filtering, be convenient to directly locate the data that need, improve recall precision.
For this reason, the present invention is by the following technical solutions: steady state data search method for transformer, it is characterized in that adopting stable state wave recording device continuous recording operation of power networks data, the real-time generation about the index unusual, fault data of transformer in monitoring range also stores, and basis incident unusual, fault is extracted corresponding data again.The present invention sets up linking relationship between incident and data, when retrieval, directly just can find corresponding data according to out-of-limit incident, and is very convenient, improved recall precision greatly.
The stable state wave recording device is according to the unusual or fault in outside normal disturbance of pre-conditioned judgement differentiation and the monitoring range, this pre-conditioned comprising: the ratio of effective value before 1) the dash current multiple, a promptly current effective value and a cycle; 2) difference current is out-of-limit, is reference side with the transformer high-voltage side, calculates according to transformer parameter; 3) aperiodic component is out-of-limit, calculates according to the asymmetric principle of waveform.The influence of rational pre-conditioned other disturbances of energy filtering is set, prevents the data markers redundancy, guarantee recall precision.
When the data that collect when the stable state wave recording device exceed preset value, between data and incident, form mapping relations with sequence of events recording incident word mode, mark data when unusual with the event message that comprises time, object, event type, and event message is sent to a recording management unit in real time; In this process, stable state record ripple uninterruptedly reads electric network data, and the data that read are saved as target page of data when having, and page of data is kept in the built-in storer of stable state record ripple.Index generates when data acquisition, record in real time, promptly generates data directory, does not interrupt recording normally ripple.
Beneficial effect: the present invention forms data directory in data acquisition, real-time is good; And the influence of other disturbances of energy filtering, directly locate the data that need, recall precision height.
[description of drawings]
Fig. 1 is a failure wave-recording information systems internetting structural drawing of the present invention;
Fig. 2 forms and the data retrieval process flow diagram for retrieval mark of the present invention.
[embodiment]
The present invention adopts system as shown in Figure 1, it is online that the wave recording device of main website data server and some corresponding transformers is connected to electric power data by router and switch, wave recording device comprises record ripple unit, administrative unit and collection converting unit (not shown), gather analog quantity and quantity of state that converting unit is accepted outside input, be converted to digital signal and send to stable state record ripple unit.Record ripple unit carries out analysis and judgement to the data of gathering, and when exceeding setting value, marks data when unusual with the event message that comprises time, object, event type, and event message sends to administrative unit in real time.Simultaneously, the continuous reading of data in stable state record ripple unit saves as target page of data when having with the data in the certain hour, and page of data is kept in its built-in storer.
The concrete application flow of steady state data search method for transformer is recorded the ripple unit and is read sampled data and put target page of data when saving as band in order as shown in Figure 2.If data are out-of-limit, then regularly report the event message that contains time, object, event type to administrative unit; During retrieval, resolve event message earlier, determine that incident takes place constantly, each page of data of front and back takes place in extraction incident then, and data are converted to the comtrade file, analyzes record ripple file, form the fault bulletin and transfer to the main website server, wait main website server is transferred.
Claims (3)
1. steady state data search method for transformer, it is characterized in that: adopt stable state wave recording device continuous recording operation of power networks data, the real-time generation about the index unusual, fault data of transformer in monitoring range also stores, and basis incident unusual, fault is extracted corresponding data again.
2. steady state data search method for transformer according to claim 1, it is characterized in that: the stable state wave recording device is according to the unusual or fault in outside normal disturbance of pre-conditioned judgement differentiation and the monitoring range, this pre-conditioned comprising: the ratio of effective value before 1) the dash current multiple, a promptly current effective value and a cycle; 2) difference current is out-of-limit, is reference side with the transformer high-voltage side, calculates according to transformer parameter; 3) aperiodic component is out-of-limit, calculates according to the asymmetric principle of waveform.
3. steady state data search method for transformer according to claim 2, it is characterized in that: when the data that collect when the stable state wave recording device exceed preset value, between data and incident, form mapping relations with sequence of events recording incident word mode, mark data when unusual with the event message that comprises time, object, event type, and event message is sent to a recording management unit in real time; In this process, stable state record ripple uninterruptedly reads electric network data, and the data that read are saved as target page of data when having, and page of data is kept in the built-in storer of stable state wave recording device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810163399A CN101751389A (en) | 2008-12-18 | 2008-12-18 | Steady state data search method for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810163399A CN101751389A (en) | 2008-12-18 | 2008-12-18 | Steady state data search method for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101751389A true CN101751389A (en) | 2010-06-23 |
Family
ID=42478381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810163399A Pending CN101751389A (en) | 2008-12-18 | 2008-12-18 | Steady state data search method for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101751389A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067267A (en) * | 2015-07-29 | 2015-11-18 | 北京中水科水电科技开发有限公司 | Method for storing hydropower unit field test and state monitoring data |
| CN106771838A (en) * | 2016-12-29 | 2017-05-31 | 许继集团有限公司 | Transformer CT broken strings method of discrimination, device and differential protecting method, device |
| CN116303481A (en) * | 2023-05-22 | 2023-06-23 | 深圳市首航新能源股份有限公司 | Storage method, device, equipment and storage medium for fault wave recording data |
-
2008
- 2008-12-18 CN CN200810163399A patent/CN101751389A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067267A (en) * | 2015-07-29 | 2015-11-18 | 北京中水科水电科技开发有限公司 | Method for storing hydropower unit field test and state monitoring data |
| CN106771838A (en) * | 2016-12-29 | 2017-05-31 | 许继集团有限公司 | Transformer CT broken strings method of discrimination, device and differential protecting method, device |
| CN106771838B (en) * | 2016-12-29 | 2019-09-13 | 许继集团有限公司 | Transformer CT broken string method of discrimination, device and differential protecting method, device |
| CN116303481A (en) * | 2023-05-22 | 2023-06-23 | 深圳市首航新能源股份有限公司 | Storage method, device, equipment and storage medium for fault wave recording data |
| CN116303481B (en) * | 2023-05-22 | 2023-09-12 | 深圳市首航新能源股份有限公司 | Storage method, device, equipment and storage medium for fault wave recording data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9523972B2 (en) | Method for distributed waveform recording in a power distribution system | |
| CN102147268B (en) | Integral panoramic data recording and analyzing system | |
| CN203772931U (en) | Online power distribution network fault wave recording device based on wireless three-phase synchronous technology | |
| CN105319482A (en) | Power distribution network fault diagnosis system and method based on multi-source information fusion | |
| CN101666826B (en) | Overvoltage online monitoring device based on dual time base sampling technology | |
| CN102969796A (en) | Near-real-time electric quantity monitoring and dispatching management system for rural power grid | |
| CN104362757A (en) | Transformer substation on-line monitoring system based on IEC61850 | |
| CN204758755U (en) | Power system fault wave recording instrument of parallel record ripples based on high -speed serial communication | |
| CN105134493A (en) | Information acquisition and storage method based on wind generator set control system | |
| CN103647805A (en) | Method for accessing data to IEC61850 fault recording master station from converter station fault recording system | |
| CN109617001A (en) | A kind of multi-source heterogeneous information intelligent processing system of relay protection | |
| CN101750571B (en) | dynamic and steady state recording method for power system | |
| CN104393674A (en) | Intelligent transformer station electronic mutual inductor state monitoring system and method | |
| CN202305704U (en) | Running state monitoring device of zinc oxide arrester | |
| CN101751389A (en) | Steady state data search method for transformer | |
| CN107819328A (en) | A kind of storage method and device of electric network fault data | |
| CN202034827U (en) | Integrated online monitoring system for 110-330kV substation circuit breaker | |
| CN113177029A (en) | Dynamic generation method, system, equipment and storage medium of power grid wave recording file | |
| CN102957202A (en) | Integrated data recording and analyzing device and COMTRADE (Common Format for Transient Data Exchange for Power System) split file method | |
| CN203071651U (en) | Residual current remote data collection and operation monitoring system | |
| CN104408665A (en) | Event-oriented disturbance data processing system based on SCD model | |
| CN113629871A (en) | Wave recording master station optimized operation method applying source end wave recording information filtering | |
| CN104104292A (en) | Real-time power generator excitation system state wide area acquisition system | |
| CN105842563A (en) | Method for rapid collection of electric quantum of feeder terminal device | |
| CN203589847U (en) | Real-time user electricity utilization data monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100623 |