CN102064614A - Method for fault inversion and communication inversion of digital substation based on IEC (International Electrotechnical Commission) 61850 standard - Google Patents
Method for fault inversion and communication inversion of digital substation based on IEC (International Electrotechnical Commission) 61850 standard Download PDFInfo
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Abstract
The invention discloses a method for fault inversion and communication inversion of a digital substation based on the IEC (International Electrotechnical Commission) 61850 standard. At present, the digital substation based on the IEC61850 standard is basically internally provided with network data recording devices only taking charge of intercepting and storing original communication messages and not having the function of communication inversion. In the invention, the method for fault inversion and communication inversion of the digital substation based on the IEC61850 standard comprises the following steps of: analyzing Comtrade recording files generated by a digital fault recorder, and repeatedly transmitting the acquired data on each recording time point according to the recorded frequencies so as to realize the inversion of the fault data; and analyzing recorded files generated by the recording devices in the substation, and reducing and transmitting the files according to the recording time corresponding sequence of each data in the recorded files so as to realize the inversion of the communication process. The invention realizes the fault inversion and the communication inversion by a simple manner, and the combination of the fault inversion and the communication inversion provides an excellent auxiliary effect for substation workers to find out the reason of faults.
Description
Technical field
The present invention relates to the application of the transformer substation case towards general object (GOOSE) of IEC61850 in the international standard " substation communication network and system " and the sampled measurement (SMV) by the ISO/IEC802.3 transmission, the specifically a kind of inverting of digital transformer substation fault and the inversion method of communicating by letter based on the IEC61850 standard at substation relay protection.
Background technology
The IEC61850 standard is a TC57 working group of International Electrotechnical Commission at " substation communication network and the system " series standard that solves the up-to-date formulation of interoperability issue that electric substation automation system faces.This standard obtains the support of domestic and international most of main flow producer, become the whole world in automation of transformation substations field unique unified standard.
Based on the breaker tripping and closing information in the digital transformer substation of IEC61850 standard is to transmit by the transformer substation case GOOSE message towards general object, and the sampled measurements Value Data of electric current and voltage is by the conversion of primary equipment through light CT/PT, produces sampled measurement SMV data by the merge cells in standing.GOOSE incident and SMV data are present in the process layer of digital transformer substation jointly.When digital transformer substation produces fault; temporal variations can take place in process sampled measurement the SMV laminated and unit; protection equipment in standing and intelligent operation box are after receiving the SMV data; according to own inner action logic; judge whether to produce event of failure and tripping operation occurs; if the generation trip event then can be sent transformer substation case GOOSE information towards general object at the process layer.And the Comtrade record ripple file that meets IEEE Std C37.111-1999 standard is intercepted and captured, stores and generated to these GOOSE information and SMV data that produce when breaking down all by the digitalized fault wave recording device of process layer.。The situation of protection equipment action takes place in transformer station through regular meeting; all be interrelated between the protection equipment by network service; therefore a lot of faults can cause the chain reaction of a series of protection equipment, and these complex electric network accidents have produced sizable difficulty for Electrical Engineer's technical Analysis work.When engineers and technicians carry out complex accident tripping operation analytical work, press for a kind of specific debugging acid and method, again read and resolve Comtrade record ripple file, and the communication port of utilization split-second precision control, SMV measurement data with electrical network when unusual and GOOSE tripping operation information playback come out, thereby realize the qualitative analysis of electric network fault and the quantitative analysis of Temporal Data.
Based on substantially all being furnished with network data recording equipment in the digital transformer substation of IEC61850 standard.These network data recording equipment all are according to the order of time communication data to be carried out record, and log file is according to fixed format stored and generated to the data type of record and without limits.These network data recording equipment only are responsible for the intercepting and capturing and the storage of original communication message, do not have the function of communication inverting.When the network function abnormal conditions appear in the digital transformer substation automated system, the Electrical Engineer is when carrying out the work of field network state analysis, press for a kind of specific debugging acid and method, again read and resolve the network message log file, and the communication port of utilization split-second precision control, all communication messages with network when unusual come out according to original scale playback writing time, thereby provide foundation for the positioning analysis and the judgement of network failure point.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defective that above-mentioned prior art exists, provide a kind of inverting of digital transformer substation fault and the inversion method of communicating by letter, the data value when breaking down and the reduction problem of data communication process with effective solution digital transformer substation based on the IEC61850 standard.
For this reason, the technical solution used in the present invention is as follows.
1. based on the fault inverting of the digital transformer substation of IEC61850 standard.
Data message when reappearing the digital transformer substation fault, the present invention proposes a kind of method of inverting fault: analyze by Comtrade file to its generation of digitalized fault wave recording, according to its record wave frequency (if frequency acquisition of 4000 point/seconds, the every 250us of oscillograph writes down a secondary data so), the data of being put upward collection each writing time send out again, thereby play the effect of inverting fault data.
The SMV data of digitalized fault wave recording device record all are to take from a plurality of merge cellses in the station, and the GOOSE data then are to take from a plurality of protection equipment and intelligent operation box.So before the Comtrade file of analyzing oscillograph, must the data in the Comtrade file are corresponding with the equipment that generates these data, like this could correct effectively inverting fault.And the information parameter of equipment can (configured IED description, CID) file obtains by importing the specific configuration of IED.
2. based on the communication inverting of the digital transformer substation of IEC61850 standard.
Comprise two parts in the log file, a part is the data message head, and another part then is the real data message of record.By parsing to the data heading, the channel number of time mark, actual message length and record that recording equipment captures this message can be obtained,, the message of back physical record can be determined by analysis to heading, should with when point, send from which and mouthful to send.In order to reappear the communication process of digital transformer substation, the present invention proposes a kind of inverting method for communicating: by the analysis of the log file of recording equipment generation in standing, according to the relative order writing time of every data in the log file, reduce transmission, then can realize inverting communication process.
The high-precise synchronization sending method of network message is: receive outside B sign indicating number clock by the synchronized transmission module, the B sign indicating number is carried out hard decoder to be obtained absolute time and produces pps pulse per second signal, utilize decoded absolute time that the synchronized transmission module is carried out clock synchronization, utilize the pulse per second (PPS) of decoding generation and the frequency of self crystal oscillator, in real time the synchronized transmission module is carried out Frequency Synchronization.After starting the emulation transmission, the synchronized transmission module alternately reads two data in the buffer memory, and the transmitting time according to every frame message is demarcated sends this message according to the frequency counting synchronously.Synchronized transmission module physical interface is supported multichannel electricity mouth or light mouth, ethernet controller IP(IP core by hardware PHY and altera corp) realized the unidirectional transmission of multi-channel network, the locking working method be only to send on the ethernet controller IP kernel, thereby has guaranteed that whole module can not be subjected to the interference of the physical network that sent when working.
FPGA is the programmable logic device of a class high integration, be field programmable gate array, FPGA combines microelectric technique, circuit engineering, EDA technology, it occurs as a kind of semi-custom circuit in application-specific integrated circuit (ASIC) (ASIC) field, both solve the deficiency of custom circuit, overcome the limited shortcoming of original programming device gate circuit number again.The use of FPGA is very flexible, can produce different circuit functions with a slice FPGA by different programming datas.FPGA has obtained extensive use in various fields such as communication, data processing, network, instrument, Industry Control, military affairs and Aero-Space.IP kernel (IP Core) is the hardware description language program with particular electrical circuit function, can make amendment more conveniently and customize, to improve design efficiency, the user can comprehensively go out correct gate level net table, and can carry out follow-up structural design, according to various semiconductor technology, be designed to have the device of different performance.
The present invention has realized the fault inverting and the inverting of communicating by letter by simple mode, wherein the fault inverting has effectively solved the reduction problem of the data value when digital transformer substation breaks down, the communication inverting has then effectively solved the reduction problem of the data communication process when digital transformer substation breaks down, and both are integrated as the reason that helps the staff of transformer station to find out that fault produces and play good auxiliaring effect.
The invention will be further described below in conjunction with specification drawings and specific embodiments.
Description of drawings
Fig. 1 is the flow chart of digital transformer substation fault of the present invention inverting.
Fig. 2 is the flow chart of communication of digitalization transformer substation inverting of the present invention.
Embodiment
The concrete steps of digital transformer substation fault inverting are as follows.
1) on the transmit port of appointment, imports the CID file of one or more merge cellses.
2) on the transmit port of appointment, import the CID file of one or more protection equipment or intelligent operation box.
3) the cfg file of the Comtrade of importing digital fault oscillograph generation.
4), mate with SMV and GOOSE data in the Comtrade file with SMV in the CID file and GOOSE data.
5) from the dat file of Comtrade, take out data, and, insert in SMV and the GOOSE message according to mapping relations.
6) recording frequency according to Comtrade is that every frame message is beaten markers, and organizes the data of one second kind.
7) drive FPGA, carry out synchronized transmission according to the markers of demarcating.
The concrete steps of communication of digitalization transformer substation inverting are as follows.
1) imports log file.
2) data format of analytic record file;
3) according to the relative time of every data record, stamp markers, prepare the data in 1 second, and deposit in the transmission buffering of port for the data that every frame is ready for sending.
Drive FPGA, carry out synchronized transmission according to the relative order of data record time.
Claims (4)
1. based on the inverting of digital transformer substation fault and the inversion method of communicating by letter of IEC61850 standard, it is characterized in that described fault inversion method is as follows: analyze by the Comtrade record ripple file that the digitlization fault oscillograph is generated, according to its record wave frequency, the data that each writing time, point was upward gathered are sent out again, thus the inverting of realization fault data;
Described communication inversion method is as follows: by the analysis of log file that recording equipment in standing is produced, according to the relative order writing time of every data in the log file, reduce transmissions, thereby realization is to the inverting of communication process.
2. the inverting of digital transformer substation fault and the inversion method of communicating by letter based on the IEC61850 standard according to claim 1 is characterized in that the concrete steps of described fault inversion method are as follows:
1) on the transmit port of appointment, imports the CID file of one or more merge cellses;
2) on the transmit port of appointment, import the CID file of one or more protection equipment or intelligent operation box;
3) the cfg file of the Comtrade of importing digital fault oscillograph generation;
4) SMV and GOOSE data in the SMV in the CID file and GOOSE data and the Comtrade file are mated;
5) from the dat file of Comtrade, take out data, and, insert in SMV and the GOOSE message according to mapping relations;
6) recording frequency according to Comtrade is that every frame message is beaten markers, and organizes the data of one second kind;
7) drive FPGA, carry out synchronized transmission, promptly carry out the fault inverting according to the markers of demarcating.
3. the inverting of digital transformer substation fault and the inversion method of communicating by letter based on the IEC61850 standard according to claim 2 is characterized in that the concrete steps of described communication inversion method are as follows:
1) imports log file;
2) data format of analytic record file;
3) according to the relative time of every data record, stamp markers, prepare the data in 1 second, and deposit in the transmission buffering of port for the data that every frame is ready for sending;
4) drive FPGA, carry out synchronized transmission, promptly communicate inverting according to the relative order of data record time.
4. according to claim 2 or the 3 described invertings of digital transformer substation fault and the inversion method of communicating by letter based on the IEC61850 standard, the concrete steps that it is characterized in that described synchronized transmission are as follows: receive outside B sign indicating number clock by the synchronized transmission module, the B sign indicating number is carried out hard decoder obtain absolute time and produce pps pulse per second signal, utilize decoded absolute time that the synchronized transmission module is carried out clock synchronization; Utilize the pps pulse per second signal of decoding generation and the frequency of self crystal oscillator, in real time the synchronized transmission module is carried out Frequency Synchronization.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102377246A (en) * | 2011-12-01 | 2012-03-14 | 国电南京自动化股份有限公司 | Graphic instantiation method based on IEC61850 fault analysis system |
| CN102571428A (en) * | 2011-12-31 | 2012-07-11 | 聚光科技(杭州)股份有限公司 | Abnormality-shooting method in communication process |
| CN102710012A (en) * | 2012-04-09 | 2012-10-03 | 浙江省电力公司 | Data resynchronization method for analyzing fault waveform of intelligent transformer substation |
| CN103346616A (en) * | 2013-07-09 | 2013-10-09 | 广东电网公司电力调度控制中心 | Auxiliary detection method and system of transformer substation protecting, measuring and controlling device |
| CN104485648A (en) * | 2014-12-09 | 2015-04-01 | 北京四方继保自动化股份有限公司 | Graph visualization expressing method for FA (Feeder Automation) action event of power distribution network |
| CN104954168A (en) * | 2015-04-29 | 2015-09-30 | 国网山东省电力公司菏泽供电公司 | Message analysis based communication fault positioning system |
| CN104979908A (en) * | 2015-06-25 | 2015-10-14 | 云南电网有限责任公司电力科学研究院 | Substation network online failure analysis method |
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| CN102377246B (en) * | 2011-12-01 | 2014-05-07 | 国电南京自动化股份有限公司 | Graphic instantiation method based on IEC61850 fault analysis system |
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| CN104485648A (en) * | 2014-12-09 | 2015-04-01 | 北京四方继保自动化股份有限公司 | Graph visualization expressing method for FA (Feeder Automation) action event of power distribution network |
| CN104954168B (en) * | 2015-04-29 | 2016-04-13 | 国网山东省电力公司菏泽供电公司 | A kind of communication failure navigation system based on packet parsing |
| CN104954168A (en) * | 2015-04-29 | 2015-09-30 | 国网山东省电力公司菏泽供电公司 | Message analysis based communication fault positioning system |
| CN104979908A (en) * | 2015-06-25 | 2015-10-14 | 云南电网有限责任公司电力科学研究院 | Substation network online failure analysis method |
| CN108021081A (en) * | 2017-12-06 | 2018-05-11 | 国网江苏省电力公司南通供电公司 | The playback test method controlled based on WLAN and sample time domain |
| CN112054860A (en) * | 2020-09-15 | 2020-12-08 | 上海华兴数字科技有限公司 | Radio frequency fault recurrence method and system |
| CN113381878A (en) * | 2021-05-08 | 2021-09-10 | 山东英信计算机技术有限公司 | Method and system for reproducing abnormal communication of main station and sub station of power grid |
| CN113504467A (en) * | 2021-07-23 | 2021-10-15 | 国网江苏省电力有限公司宿迁供电分公司 | High-precision waveform inversion system |
| CN116990622A (en) * | 2023-09-26 | 2023-11-03 | 国网辽宁省电力有限公司电力科学研究院 | Fault wave recording method, device, equipment and medium of transformer substation direct current system |
| CN116990622B (en) * | 2023-09-26 | 2023-12-15 | 国网辽宁省电力有限公司电力科学研究院 | Fault wave recording method, device, equipment and medium of transformer substation direct current system |
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