CN105356611B - A kind of steady state data Synchronous Screening method and the telemechanical retransmission unit using this method - Google Patents
A kind of steady state data Synchronous Screening method and the telemechanical retransmission unit using this method Download PDFInfo
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- CN105356611B CN105356611B CN201510848224.2A CN201510848224A CN105356611B CN 105356611 B CN105356611 B CN 105356611B CN 201510848224 A CN201510848224 A CN 201510848224A CN 105356611 B CN105356611 B CN 105356611B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Abstract
A kind of telemechanical retransmission unit the present invention relates to steady state data Synchronous Screening method and using this method, the present invention Synchronous Screening method make dispatching terminal gather different substation, different interval steady state data by it is same when discontinuity surface align, and evade and sent thinking in the remote measurement that the mutation always used in the prior art and circulation are combined, and use very unique thinking, data syn-chronization screening is carried out using power-balance method, filter out and sent on being packed after synchronous data, meeting scheduling station needs to obtain the requirement of same time profile data.
Description
Technical field
The invention belongs to power system automatic field, the stable state number for each substation in scheduling station synchronous acquisition net
According to.
Background technology
With the development of Automation of Electric Systems correlation technique, authenticity of the scheduling station to gathered data, accuracy
Index proposes higher and higher requirement.It is by bus member that one of its authenticity and the method for the degree of accuracy are examined for telemetry
Connected on part or main transformer element computing element interval it is same when discontinuity surface vector power and, in theory this vector sum manage
By above should be 0, it is contemplated that sampling error, data encoding error error factors, this vector sum are then thought less than a set threshold
Data are true, reliable.To 220kV transformer stations 220kV buses or main transformer, this threshold is traditionally arranged to be 10MW (one at present
Sub-value).
From the point of view of the actual result of appraisal, the data examination of many transformer stations is unqualified, especially there is the loads such as steel plant, ferroelectric
Transformer station, underproof situation is especially prominent.Occur the reason for such case be due on to be sent to the data of scheduling be different
Step, dispatch and be in practice likely to be data at different moments by the data of regular time section interception, so as to imbalance occur
Situation.
Explained the situation by taking the simplification main electrical scheme shown in Fig. 1 as an example.
Under actual conditions, the watt level on two lines road is equal, in opposite direction.Power versus time curve Fig. 2 institutes
Show.
Under actual conditions, realtime power P1, the P2 on two lines road are always symmetrical with zero axle, i.e., vector sum is always 0.But
The power that dispatching terminal receives is not necessarily such case.Because the sampling start time of device is different, send on power data
The influence for the factors such as inconsistent, scheduling station refresh data order is inconsistent is taken to scheduling, is sent on the power on two lines road
Speed to scheduling is different.Power curve and actual conditions in scheduling real-time data base may be inconsistent, such as Fig. 3 institutes
Show.
As shown in figure 3, cause scheduling real-time data base power curve and actual curve inconsistent due to asynchronous, if
Fetched at the time of between T1 and T2 shown in Fig. 3 evidence, power is unbalanced.
The content of the invention
Patent of the present invention provides a kind of Synchronous Screening method of steady state data, for solving to dispatch end data in the prior art
Nonsynchronous problem.Meanwhile present invention also offers a kind of telemechanical retransmission unit using the Synchronous Screening method.
A kind of steady state data Synchronous Screening method, it is characterised in that comprise the following steps：
1) by all stable state telemetry write-in real-time data bases received；
2) when power data changes in recognizing real-time data base, distinguished according to trend flow direction by bus, main transformer
Calculate vector power and, according to the size of result of calculation differentiate data synchronism；Power is sent on being packed if data syn-chronization
Data, data variation next time is waited without being sent in data if data are asynchronous.
Discriminant approach is：On bus the power vector at each connection interval and, each side power vector of all main transformers and less than pair
The setting threshold value answered.
Present invention also offers a kind of telemechanical retransmission unit, it is characterised in that including：
1) receiving module：By in all stable state telemetry write-in real-time data bases received；
2) synchronous discrimination module：When power data changes in recognizing real-time data base, pressed according to trend flow direction
Bus, main transformer calculate respectively vector power and, according to the size of result of calculation differentiate data synchronism；If data syn-chronization
Related power data are sent in packing, data variation next time is waited without being sent in data if data are asynchronous.
Discriminant approach is：On bus the power vector at each connection interval and, each side power vector of all main transformers and less than pair
The setting threshold value answered.
Found from factual survey, no matter the size variation of load how often, overall load always have one section longer when
Between (more than 10 seconds) be stable.It is can be seen that by analysis above in the case of steady load, data transfer takes
The inconsistent synchronism on data does not influence.Accordingly, it is considered to filter out the data sent on the steady load period, can solve
Above mentioned problem.
It is time-consuming inconsistent and uncontrollable due to each data transfer to dispatching terminal according to the analysis to prior art, cause
The real time data of dispatching terminal cannot be guaranteed synchronization.To solve this problem, this patent, which does not use, to send in traditional mutation and always calls together
On send pattern, using when telemechanical forwards by data be mutated triggering to real-time database data syn-chronization differentiate, be determined as synchrodata
, packing send；Be determined as nonsynchronous, then it is assumed that data invalid, not on give.
In screening of the telemechanical forwarding link to synchronizing property of data, filter out and be sent to scheduling in synchronous data packing
End, make data that dispatching terminal receives always synchronous.This method has evaded data transfer and has taken this inconsistent and uncontrollable hardly possible
Point, then the synchronism of data is judged when telemechanical forwards and it is ensured that dispatching terminal is real-time by the way of being given in packing
Data are synchronous all the time in storehouse.
Brief description of the drawings
Fig. 1 is simplified main wiring diagram；
Fig. 2 is that actual power changes over time curve map；
Fig. 3 is that schedule power changes over time curve map；
Fig. 4 is data screening flow chart.
Embodiment
Illustrate below in conjunction with the accompanying drawings.
A kind of steady state data Synchronous Screening method, comprises the following steps：
1) by all stable state telemetry write-in real-time data bases received；
2) when power data changes in recognizing real-time data base, distinguished according to trend flow direction by bus, main transformer
Calculate vector power and, according to the size of result of calculation differentiate data synchronism；Power is sent on being packed if data syn-chronization
Data, data variation next time is waited without being sent in data if data are asynchronous.
Specifically, send implementation process as shown in Figure 4 on data screening.
Telemetry is sent on telemechanical retransmission unit real-time reception measure and control device and is parsed, and real-time number is flushed to after parsing
According to the correspondence position in storehouse.Data in telemechanical retransmission unit real time scan real-time data base simultaneously, differentiate whether related data is sent out
Changing.If related data changes, data syn-chronization differentiation is carried out.Discriminant approach is each connection interval on bus
Power vector and, each side power vector of all main transformers and less than corresponding setting threshold value.Data are determined to be synchronous, then will
Related data is sent to scheduling station on being bundled in one group of message；It is asynchronous to determine data, then not on give.Then carry out again afterwards
Differentiate next time, so continuous circulation is carried out.
The present invention make dispatching terminal gather different substation, different interval steady state data by it is same when discontinuity surface align,
And evade and thinking is sent in the remote measurement that the mutation always used in the prior art and circulation are combined, and using very unique
Thinking, i.e., data syn-chronization screening is carried out using power-balance method, filter out and sent on being packed after synchronous data, meet tune
Degree main website needs to obtain the requirement of same time profile data.
Claims (2)
- A kind of 1. steady state data Synchronous Screening method, it is characterised in that comprise the following steps：1) by all stable state telemetry write-in real-time data bases received；2) when power data changes in recognizing real-time data base, flowed to according to trend and calculated respectively by bus, main transformer Vector power and, according to the size of result of calculation differentiate data synchronism；Power data is sent on being packed if data syn-chronization, If data are asynchronous data variation next time is waited without being sent in data；The discriminant approach of synchronism is：On bus the power vector at each connection interval and, each side power vector of all main transformers and small In corresponding setting threshold value.
- A kind of 2. telemechanical retransmission unit, it is characterised in that including：1) receiving module：By in all stable state telemetry write-in real-time data bases received；2) synchronous discrimination module：When power data changes in recognizing real-time data base, according to trend flow direction by bus, Main transformer calculate respectively vector power and, according to the size of result of calculation differentiate data synchronism；Packed if data syn-chronization On send related power data, wait data variation next time without being sent in data if data are asynchronous；The discriminant approach of synchronism is：On bus the power vector at each connection interval and, each side power vector of all main transformers and small In corresponding setting threshold value.
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| CN201510848224.2A CN105356611B (en) | 2015-11-26 | 2015-11-26 | A kind of steady state data Synchronous Screening method and the telemechanical retransmission unit using this method |
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| CN105356611B true CN105356611B (en) | 2018-03-16 |
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| CN112904083A (en) * | 2021-01-29 | 2021-06-04 | 许继集团有限公司 | Power balance calibration method and device based on broadband measurement |
| CN115276228A (en) * | 2022-07-29 | 2022-11-01 | 南京国电南自电网自动化有限公司 | Method, system, storage device and computing device for synchronously uploading power data |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164774A (en) * | 1996-11-27 | 1998-06-19 | Toshiba Corp | Remote monitoring controller |
| CN102361353A (en) * | 2011-10-26 | 2012-02-22 | 东北电网有限公司 | Method for aligning section raw data on basis of double time scale delay evaluation |
| CN104133410A (en) * | 2014-08-12 | 2014-11-05 | 南方电网科学研究院有限责任公司 | Wide area damping control real-time data processing method |
-
2015
- 2015-11-26 CN CN201510848224.2A patent/CN105356611B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164774A (en) * | 1996-11-27 | 1998-06-19 | Toshiba Corp | Remote monitoring controller |
| CN102361353A (en) * | 2011-10-26 | 2012-02-22 | 东北电网有限公司 | Method for aligning section raw data on basis of double time scale delay evaluation |
| CN104133410A (en) * | 2014-08-12 | 2014-11-05 | 南方电网科学研究院有限责任公司 | Wide area damping control real-time data processing method |
Non-Patent Citations (1)
| Title |
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| 论铁路电力RTU遥测信息传递技术;李焱;《计算机光盘软件与应用 》;20150115;第7-8、10页 * |
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Effective date of registration: 20170726 Address after: No. 1706 Xuchang City, Henan province 461000 XJ Avenue Applicant after: Xuji Group Co., Ltd. Applicant after: Xuji Electric Co., Ltd. Applicant after: Xuchang Xuji Software Technology Co., Ltd. Applicant after: Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Applicant before: Xuji Group Co., Ltd. Applicant before: Xuji Electric Co., Ltd. Applicant before: Xuchang Xuji Software Technology Co., Ltd. Applicant before: State Grid Corporation of China |
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