CN102116857A - Method for checking electric quantity at power grid gate - Google Patents
Method for checking electric quantity at power grid gate Download PDFInfo
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Abstract
The invention discloses a method for checking electric quantity at a power grid gate. In order to ensure the measuring accuracy at the power grid gate, a power grid gate electric quantity checking model is established, on the basis of public, fair and impartial principle. The model is used for performing the checking algorithm analysis by using a gate electric quantity data and timely finding and treating the power grid gate measuring fault, thereby ensuring the accuracy of the electric quantity data at the power system measuring gate and the reliability of the measuring and sampling device, and reducing the status of electric quantity loss and measuring distortion caused by personal factors such as measuring error, measuring fault, illegal electricity use, and the like. The gate measuring management work is supplied with technical support, the electric gate management level is increased and the fair trade is ensured.
Description
Technical field
The present invention relates to a kind of electrical network critical point electric weight check method of electric quantity acquisition application system, belong to the automatic control technology of power system field.
Background technology
Substantially can objectively respond the real-time information at current electrical network critical point at present by the electrical network critical point electric quantity data that calculates collection, but all multifactor impacts such as the metered directional error of accuracy of electrical network critical point continuous data, metering fault, violation electricity consumption, and lack the operation conditions accurate, directly perceived, quick, that convenient mode is judged reliability, accuracy and the electrical network critical point measuring apparatus of electrical network critical point electric quantity metering data at present.
Summary of the invention
The present invention is by analyzing electrical network critical point metering model, advanced technologies such as utilization software design, modern communication, database, data, services, set up electrical network critical point electric weight and checked model, reasonable, effective gate energy meter data verification method is provided, ensure critical point accurate measurement, reliable, ensure electrical network critical point electric weight trade settlement justice, just.
For achieving the above object, the present invention takes following technical scheme to realize:
Check model and analyze electrical network critical point electric quantity data, ensure that the critical point electric quantity data is accurate, reliable, realizes system demonstration based on the B/S framework by five re-graduation accounting methods.
Electrical network critical point electric weight check method is characterized in that: may further comprise the steps,
(1) sets up the check model: based on electrical network critical point measuring control model, take out data object model,, set up and check model by critical point stoichiometric point corresponding relation;
(2) check algorithm: utilize the check model to carry out electric weight and calculate in real time and check, comprise the check algorithm processing module in the check model, the check algorithm of checking the algorithm processing module employing comprises that major-minor balance check, circuit are to lateral balance check, the check of bus balance, generator outlet and the check of main transformer high-pressure side balance, the check of integration electric weight;
(3) data storage: check calculating process and utilize metadata cache, fast, stablely obtain electric network data from buffer memory, from database, extract real-time electric quantity data simultaneously, utilize the multi-thread concurrent technology, check electric quantity data according to checking algorithm computation, deposit analysis result in database, and simultaneously up-to-date analysis result is deposited in the buffer memory, caching technology has reduced the database access amount, makes extraction, analysis and the WEB application interface of data show efficient more, timely;
(4) the WEB application interface is showed: realize based on the B/S framework, adopt the EXT framework, and direct data in the access cache, after data are processed, the information of showing metering fault at the WEB page.
Described WEB page exhibition method has modes such as tabulation, graphical (curve, column), message, in time reminds the operator on duty to find metering faults such as error in dipping, measuring apparatus fault, electric weight imbalance, assisted user discriminatory analysis.
Described check model is based on metering model, and the uses energy conservation principle adopts methods such as integration, slippage, match to carry out electric weight and calculates in real time and check, and guarantees that check result is correct, reliable.
Described data storage adopts modified EHCACHE technology to carry out buffer memory to checking model data, makes the check data access efficient, stable.
Described check algorithm can be according to service needed, and rule and checking task are checked in configuration, automatically, regularly triggers and checks algorithm processing module.
Described WEB application interface shows and checks algorithm and adopt same caching process that both make data access in enormous quantities more real-time, quick by the buffer area interaction data.
Described five re-graduation accounting methods comprise that major-minor balance check, circuit to lateral balance check, the check of bus balance, generator outlet and the check of main transformer high-pressure side balance, the check of integration electric weight, can guarantee that the check data are accurate and reliably, the check process is:
Major-minor balance is checked:
Electric system metering critical point has the polylith electric energy meter to move simultaneously usually, in order to continuity and the stability of guaranteeing data.Wherein master meter is the charge electric energy table, is rates ground with the master meter metrical information, compares the rationality that the supplier of electricity electricity charge are collected with auxilliary table information.By the electric weight verification between the major-minor table, can draw the table meter and whether move normally, and two differences of showing between the meter.The algorithm that the present invention proposes is as described below:
Formula A=[∣ (master meter data-auxilliary table data) ∣/master meter data] * 100%
Formula B=∣ master meter data-auxilliary Biao is Shuoed Ju ∣
Wherein: major-minor table data are meant major-minor table whole day accumulative total electric flux.
This algorithm comes verification to judge whether the critical point data are qualified according to different electric pressures:
The 500kV circuit: if every day master meter accumulative total electric flux greater than 1,500,000 degree, adopt formula A, otherwise adopt formula B, as formula A〉0.5% or formula B 6000 when spending for unusual.
The 220kV circuit: if every day master meter accumulative total electric flux greater than 200,000 degree, adopt formula A, otherwise adopt formula B, as formula A〉0.5% or formula B 1000 when spending for unusual.
The 110kV circuit: if every day master meter accumulative total electric flux greater than 100,000 degree, adopt formula A, otherwise adopt formula B, as formula A〉0.5% or formula B 600 when spending for unusual.
The 35kV circuit: if every day master meter accumulative total electric flux greater than 50,000 degree, adopt formula A, otherwise adopt formula B, as formula A〉0.5% or formula B 300 when spending for unusual.
Circuit is checked lateral balance:
According to the electric quantity balancing relation of gate energy meter and circuit offside electric energy meter, investigate transmission line of electricity line loss situation between gauging table meter, circuit operating condition and factory's net in real time.The electric energy data that calculating and analysis and utilization are gathered, with each metering gate energy meter electric weight, respectively send into the substation electric energy meter electric weight, according to its corresponding period, calculate the dividing potential drop line loss, determine by computational analysis whether line loss is unusual, whether there are measuring apparatus fault, misalignment, stealing etc., reach the purpose of monitoring critical point operation.
Line loss per unit=[(closing oral-lateral electric weight-balance side electric weight)/pass oral-lateral electric weight] * 100%
The bus balance is checked:
According to law of conservation of energy, electric energy will convert mechanical energy, chemical energy, heat energy or luminous energy etc. according to the intention of electricity consumption department to and effectively utilize after being transported to customer site electricity consumption system, also have the portion of energy loss in conversion and course of conveying.So the electric weight of inlet highway adds that with the electric weight of output bus the electric weight of transmission transfer process loss should be consistent.Carry out verification by electric quantity data before the inlet highway and the on high-tension side electric quantity data of input main transformer, can draw the operation conditions at current critical point.
Bus balanced ratio=[(inlet highway electric weight-output bus electric weight)/inlet highway electric weight] * 100%
Generator outlet and main transformer high-pressure side balance are checked:
With in like manner last, there is equilibrium relation between generator outlet electric weight, station-service electric weight and the main transformer high-pressure side electric weight, generator output electric quantity data and the on high-tension side electric quantity data of main transformer carry out verification.
Generating balanced ratio=[(generator output electric weight-station-service electric weight-main transformer high-pressure side input electric weight)/generator output electric weight] * 100%
The integration electric weight is checked:
The real-time image data of table meter is checked with EMS power integration electric weight.The result who calculates Source of Gateway Meter counting certificate and the computing in the same period of EMS power integration electric weight compares, and the metering of decision table meter occurs unusual if deviate goes beyond the scope.
Integration electric weight check rate=[(table quantity calculation-power integration electric weight)/table quantity calculation] * 100%.
The beneficial effect that the present invention reached: the difficult point that the present invention is directed to electric system metering critical point management work, propose electrical network critical point electric weight and checked model, guaranteed to check the rationality of algorithm, and, adopted technological means to carry out good solution at subject matters such as real-time frequent in the general real-time monitoring platform design process, stability, extendabilities.
(1) model is by analyzing critical point metering electric network model, binding data is checked professional, utilize critical point quantitative relation, measuring apparatus characteristic, continuous data etc. to carry out the analysis of specialty, analyze data by WEB application interface real-time exhibition, in time reflect critical point metering state, the reliability of critical point continuous data is guaranteed, for the critical point measuring control provides technical support.
(2) check model based on metering model, the uses energy conservation principle, adopt technical design such as integration, slippage, match major-minor balance check, circuit to lateral balance checks, the check of bus balance, generator outlet check with main transformer high-pressure side balance, the integration electric weight checks five tuples and carries out electric weight and calculate in real time and check according to checking algorithm, guarantees that check result correctly, reliably.
What (3) analysis and calculating process employing metadata cache technology was quick, stable obtains the electric network model data from buffer memory, from database, extract real-time electric quantity data simultaneously, utilize the multi-thread concurrent technology, efficiently handle the calculating electric quantity data according to checking algorithm, analysis result deposits database in, and simultaneously nearest analysis result is deposited in the buffer memory, caching technology has reduced the database access amount, make extraction, analysis and the application interface displaying of data efficient more, timely, can find metering fault faster.
Description of drawings
Fig. 1 check model of the present invention physics deployment diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is done to introduce:
As shown in Figure 1, the physical arrangement of electrical network of the present invention critical point electric quantity data check method is, comprises that check analysis server, WEB use publisher server, checks mold portion and is deployed on the check analysis server.Electric quantity data, power integration data and measuring apparatus real time data by the collection of integrated electric weight intelligent acquisition system all exist in the system database.Check model and from database, extract information such as electric quantity data, power integration data, metering real time data, use five re-graduation accounting methods, the real-time analysis data, analysis result is delivered to WEB in modes such as message, incident, graphical, forms and is used publisher server, carry out the WEB page and show, so that the operator on duty in time finds metering faults such as error in dipping, measuring apparatus fault, electric weight imbalance.
Below announce the present invention as above with preferable exemplifying embodiment, so it is not in order to restriction the present invention, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (8)
1. electrical network critical point electric weight check method is characterized in that: may further comprise the steps,
(1) sets up the check model: based on electrical network critical point measuring control model, take out data object model,, set up and check model by critical point stoichiometric point corresponding relation;
(2) check algorithm: utilize the check model to carry out electric weight and calculate in real time and check, comprise the check algorithm processing module in the described check model, the check algorithm that described check algorithm processing module adopts comprises that major-minor balance is checked, circuit is checked lateral balance check, the check of bus balance, generator outlet and the check of main transformer high-pressure side balance, integration electric weight;
(3) data storage: check calculating process and utilize metadata cache, obtain electric network data from buffer memory, from database, extract real-time electric quantity data simultaneously, utilize the multi-thread concurrent technology, check electric quantity data according to described check algorithm computation, deposit analysis result in database, and simultaneously up-to-date analysis result is deposited in the buffer memory;
(4) the WEB application interface is showed: realize based on the B/S framework, adopt the EXT framework, and direct data in the access cache, after data are processed, the information of showing metering fault at the WEB page.
2. electrical network according to claim 1 critical point electric weight check method is characterized in that: the check process of described check algorithm is:
Major-minor balance is checked: the main electric energy meter of electric system metering critical point operation is the charge electric energy table, and rational auxilliary electric energy meter is collected in the electricity charge of comparison supplier of electricity, by the electric weight verification between the major-minor table, judges whether the table meter moves normally;
Circuit is checked lateral balance: according to the electric quantity balancing relation of gate energy meter and circuit offside electric energy meter, investigate transmission line of electricity line loss situation between gauging table meter, circuit operating condition and factory's net in real time, the electric energy data that calculating and analysis and utilization are gathered, with each metering gate energy meter electric weight, respectively send into the substation electric energy meter electric weight, according to its corresponding period, calculate the dividing potential drop line loss, the operation of monitoring critical point;
The bus balance is checked: electric quantity data before the inlet highway and the on high-tension side electric quantity data of input main transformer are carried out verification, obtain the operation conditions at current critical point;
Generator outlet and main transformer high-pressure side balance check: generator output electric quantity data and the on high-tension side electric quantity data of main transformer carry out verification;
The verification of integration electric weight: the real-time image data of table meter is checked with EMS power integration electric weight, and it is unusual whether the metering of decision table meter occurs.
3. electrical network according to claim 2 critical point electric weight check method is characterized in that: described major-minor balance is checked according to electric pressure and is come verification respectively to judge whether the critical point data are qualified.
4. electrical network according to claim 1 critical point electric weight check method is characterized in that: described check model is based on metering model, and the uses energy conservation principle adopts integration, slippage, fitting method to carry out electric weight and calculates in real time and check.
5. electrical network according to claim 1 critical point electric weight check method is characterized in that: check algorithm as required described in the step (2), rule and checking task are checked in configuration, automatically, regularly trigger and check algorithm processing module.
6. electrical network according to claim 1 critical point electric weight check method is characterized in that: data storage described in the step (3) adopts modified EHCACHE technology to carry out buffer memory to checking model data.
7. electrical network according to claim 1 critical point electric weight check method is characterized in that: the mode that the WEB page described in the step (4) is showed has tabulation formula, graphical formula, message formula.
8. electrical network according to claim 1 critical point electric weight check method is characterized in that: described WEB application interface is showed and described check algorithm adopts same caching process, and both are by the buffer area interaction data.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018709A (en) * | 2012-12-18 | 2013-04-03 | 广东电网公司潮州供电局 | Method and system for monitoring error of gateway metering device |
| CN103631900A (en) * | 2013-11-20 | 2014-03-12 | 广东电网公司电力科学研究院 | Data comparing method based on main gateway and standby gateway comparison |
| CN104156891A (en) * | 2014-08-15 | 2014-11-19 | 珠海格力电器股份有限公司 | Air conditioning household electricity apportioning proofreading method and device |
| CN104215856A (en) * | 2014-09-10 | 2014-12-17 | 国家电网公司 | Method for dynamically checking electric energy value of large power grid |
| CN104280714A (en) * | 2014-10-17 | 2015-01-14 | 国家电网公司 | Running abnormality detecting method of metering device |
| CN105259408A (en) * | 2014-07-17 | 2016-01-20 | 国家电网公司 | Detection method and apparatus of electric quantity of power grid gateway |
| CN105894396A (en) * | 2016-04-22 | 2016-08-24 | 威胜集团有限公司 | Metering data storage method for electric energy metering device |
| CN106950440A (en) * | 2017-02-14 | 2017-07-14 | 国网新疆电力公司伊犁供电公司 | Transformer station's metering critical point quickly judges alarm method extremely |
| CN107944652A (en) * | 2017-09-05 | 2018-04-20 | 天津市电力科技发展有限公司 | A kind of broad sense flow instrument kinematic error remote calibration method |
| CN109035592A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of charging test method and equipment |
| CN110531305A (en) * | 2019-08-12 | 2019-12-03 | 广西电网有限责任公司 | A kind of electricity exception monitoring system and its platform and method |
| CN113009406A (en) * | 2021-02-26 | 2021-06-22 | 珠海格力电器股份有限公司 | Electric quantity measurement correction method and device and air conditioning system |
| CN113570076A (en) * | 2021-06-22 | 2021-10-29 | 云南电网有限责任公司 | Online operation and maintenance management platform for gateway metering device of power plant |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018709B (en) * | 2012-12-18 | 2015-09-16 | 广东电网公司潮州供电局 | The error monitoring method and system of energy metering device |
| CN103018709A (en) * | 2012-12-18 | 2013-04-03 | 广东电网公司潮州供电局 | Method and system for monitoring error of gateway metering device |
| CN103631900A (en) * | 2013-11-20 | 2014-03-12 | 广东电网公司电力科学研究院 | Data comparing method based on main gateway and standby gateway comparison |
| CN105259408B (en) * | 2014-07-17 | 2018-06-01 | 国家电网公司 | The detection method and device of electric quantity at power grid gate |
| CN105259408A (en) * | 2014-07-17 | 2016-01-20 | 国家电网公司 | Detection method and apparatus of electric quantity of power grid gateway |
| CN104156891A (en) * | 2014-08-15 | 2014-11-19 | 珠海格力电器股份有限公司 | Air conditioning household electricity apportioning proofreading method and device |
| CN104215856A (en) * | 2014-09-10 | 2014-12-17 | 国家电网公司 | Method for dynamically checking electric energy value of large power grid |
| CN104215856B (en) * | 2014-09-10 | 2016-08-24 | 国家电网公司 | A kind of bulk power grid dynamic check method of electric energy value |
| CN104280714A (en) * | 2014-10-17 | 2015-01-14 | 国家电网公司 | Running abnormality detecting method of metering device |
| CN104280714B (en) * | 2014-10-17 | 2015-12-30 | 国家电网公司 | A kind of measuring apparatus operation exception detection method |
| CN105894396A (en) * | 2016-04-22 | 2016-08-24 | 威胜集团有限公司 | Metering data storage method for electric energy metering device |
| CN105894396B (en) * | 2016-04-22 | 2020-05-12 | 威胜集团有限公司 | Metering data storage method of electric energy metering device |
| CN106950440A (en) * | 2017-02-14 | 2017-07-14 | 国网新疆电力公司伊犁供电公司 | Transformer station's metering critical point quickly judges alarm method extremely |
| CN106950440B (en) * | 2017-02-14 | 2019-08-13 | 国网新疆电力公司伊犁供电公司 | Substation's metering critical point is abnormal quickly to judge alarm method |
| CN107944652A (en) * | 2017-09-05 | 2018-04-20 | 天津市电力科技发展有限公司 | A kind of broad sense flow instrument kinematic error remote calibration method |
| CN109035592A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of charging test method and equipment |
| CN110531305A (en) * | 2019-08-12 | 2019-12-03 | 广西电网有限责任公司 | A kind of electricity exception monitoring system and its platform and method |
| CN113009406A (en) * | 2021-02-26 | 2021-06-22 | 珠海格力电器股份有限公司 | Electric quantity measurement correction method and device and air conditioning system |
| CN113570076A (en) * | 2021-06-22 | 2021-10-29 | 云南电网有限责任公司 | Online operation and maintenance management platform for gateway metering device of power plant |
| CN113570076B (en) * | 2021-06-22 | 2023-12-22 | 云南电网有限责任公司 | On-line operation and maintenance management platform for gateway metering device of unified power plant |
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Effective date of registration: 20121030 Address after: 210024 Shanghai Road, Jiangsu, China, No. 215, No. Applicant after: Jiangsu Electric Power Company Applicant after: Jiangsu Fangtian Power Technology Co., Ltd. Applicant after: State Grid Corporation of China Address before: 210024 Shanghai Road, Jiangsu, China, No. 215, No. Applicant before: Jiangsu Electric Power Company Applicant before: Jiangsu Fangtian Power Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |