CN102868158A - Active electric quantity differential motion out-of-limit event judgment method of integrated lectric energy management system - Google Patents
Active electric quantity differential motion out-of-limit event judgment method of integrated lectric energy management system Download PDFInfo
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- CN102868158A CN102868158A CN2012103464329A CN201210346432A CN102868158A CN 102868158 A CN102868158 A CN 102868158A CN 2012103464329 A CN2012103464329 A CN 2012103464329A CN 201210346432 A CN201210346432 A CN 201210346432A CN 102868158 A CN102868158 A CN 102868158A
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Abstract
The invention relates to an active electric quantity differential motion out-of-limit event judgment method, and particularly relates to an active electric quantity differential motion out-of-limit event judgment method of an integrated electric energy management system. The method is characterized in that an integration contrastive method is adopted, when a terminal differential motion out-of-limit event simultaneously meets a relative error fixed value and an absolute error fixed value, and a system can report the differential motion out-of-limit event; the relative error fixed value is set to be 2-5% according to the measuring accuracy level of a terminal changing acquisiton and a measuring accuracy level metered by a gauge table; and the absolute error fixed value is set to be that the transformer capacity is multiplied by (8-12)% according to different transformers and the transformer capacity. According to the active electric quantity differential motion out-of-limit event judgment method of the integrated electric energy management system provided by the invention, the state of a metering device state can be refelcted accruately, the misdeclaration ratio of the active electric quantity differential motion out-of-limit event of a load terminal is notably reduced, and the operating efficiency is improved; and the misdeclaration ratio of the power electric quantity differential motion out-of-limit event of the terminal is notably reduced, the monitoring efficiency is greatly improved, a measurement failure is exactly found in time, and a worker can solve the problems on site conveniently.
Description
Technical field
The present invention relates to the differential out-of-limit event determination methods of a kind of active energy, particularly relate to the differential out-of-limit event determination methods of a kind of electric flux total management system active energy.
Background technology
In actual applications, because state's network planning limitation approximately, the differential out-of-limit event rate of false alarm of active energy is higher in the electric flux total management system, can not accurately reflect the metering device running status, brings inconvenience for normal production maintenance and management.According to statistics, it is more than 70% that my company differential out-of-limit rate of active energy in 2009 reaches 50%, 2010 year and be 60%, 2011 year, and is and increases progressively trend.This is unfavorable for production operation personnel discovery metering system fault promptly and accurately, not only affects the normal operation of electric power system, and can waste a large amount of human and material resources, causes meaningless energy waste.Therefore, in order to improve system monitoring efficient, increase the accuracy that the differential out-of-limit event of active energy is reported and submitted, need to improve the determination methods of the differential out-of-limit event of active energy in the electric flux total management system.
Summary of the invention
The present invention is directed to the prior art deficiency, propose the differential out-of-limit event determination methods of a kind of electric flux total management system active energy.
The technical solution adopted in the present invention:
The differential out-of-limit event determination methods of a kind of electric flux total management system active energy, the method for employing Comprehensive Correlation, when the differential out-of-limit event of terminal satisfied relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event;
Wherein the differential out-of-limit event relative error of terminal adopts following formula to calculate,
The differential out-of-limit event absolute error of terminal adopts following formula to calculate,
| measurement meter unit interval electric weight-reference table meter unit interval electric weight |=absolute error
Hand over the measuring accuracy rank of adopting with measurement meter according to terminal, the relative error definite value is set to 2～5%; For different transformers, according to transformer capacity, the absolute error definite value is set to transformer capacity * (8～12) %.The differential out-of-limit event determination methods of described electric flux total management system active energy, the relative error definite value is arranged on 3%, the absolute error definite value is set to transformer capacity * 10%, when the differential out-of-limit event of terminal satisfied aforementioned relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event.
Beneficial effect of the present invention:
The proposition of the differential out-of-limit event determination methods of electric flux total management system active energy of the present invention can reflect the metering device state accurately, has reduced significantly the rate of false alarm of the differential out-of-limit event of loaded termination active energy, has improved operating efficiency.The reduction of the differential out-of-limit event rate of false alarm of terminal active energy has improved monitoring efficiency greatly, can promptly and accurately find metering fault, makes things convenient for staff's in-situ processing problem.So far find 7 of measurement meter faults by the differential out-of-limit event of terminal active energy in 2012, and remedied electric weight 513000 kilowatt hours, retrieve a loss more than 280,000 yuan.
Embodiment
Embodiment one: the differential out-of-limit event determination methods of electric flux total management system active energy of the present invention, on the basis that meritorious differential out-of-limit event wrong report situation is fully analyzed to current electric flux total management system, overcome the limitation of relative error and the single judgement of absolute error, adopt the method for Comprehensive Correlation, when the differential out-of-limit event of terminal satisfied relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event;
Wherein the differential out-of-limit event relative error of terminal adopts following formula to calculate,
The differential out-of-limit event absolute error of terminal adopts following formula to calculate,
| measurement meter unit interval electric weight-reference table meter unit interval electric weight |=absolute error
Hand over the measuring accuracy rank of adopting with measurement meter according to terminal, the relative error definite value is set to 2～5%; For different transformers, according to transformer capacity, the absolute error definite value is set to transformer capacity * (8～12) %.
Embodiment two: the differential out-of-limit event determination methods of present embodiment electric flux total management system active energy, the relative error definite value is arranged on 3%, the absolute error definite value is set to transformer capacity * 10%, when the differential out-of-limit event of terminal satisfied aforementioned relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event.
The differential out-of-limit determination methods of current active energy causes in batch event wrong report easily, can not accurately reflect the metering device normal condition.Cause event wrong report reason to comprise: metering device is in the underloading scope, and error change own is just larger, and metering device table code only has 2 decimals, and this just causes relative error seriously overproof easily; Moreover transformer only could be realized accurate reported event under the invariable perfect condition of load, and in fact transformer load fluctuates at any time, and this just causes the reporting events definite value to determine.Therefore the absolute error Rule of judgment also should change along with the difference of load.
The enforcement of the differential out-of-limit event determination methods of electric flux total management system active energy of the present invention, effectively solved the differential out-of-limit event wrong report problem of terminal active energy, reduced the differential out-of-limit event rate of false alarm of terminal active energy, greatly improved monitoring efficiency, can promptly and accurately find metering fault, make things convenient for staff's in-situ processing problem.Has preferably Social benefit and economic benefit.
Claims (2)
1. differential out-of-limit event determination methods of electric flux total management system active energy is characterized in that: adopt the method for Comprehensive Correlation, when the differential out-of-limit event of terminal satisfied relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event; Wherein the differential out-of-limit event relative error of terminal adopts following formula to calculate,
The differential out-of-limit event absolute error of terminal adopts following formula to calculate,
| measurement meter unit interval electric weight-reference table meter unit interval electric weight |=absolute error
Hand over the measuring accuracy rank of adopting with measurement meter according to terminal, the relative error definite value is set to 2～5%; For different transformers, according to transformer capacity, the absolute error definite value is set to transformer capacity * (8～12) %.
2. the differential out-of-limit event determination methods of electric flux total management system active energy according to claim 1, it is characterized in that: the relative error definite value is arranged on 3%, the absolute error definite value is set to transformer capacity * 10%, when the differential out-of-limit event of terminal satisfied aforementioned relative error definite value and absolute error definite value simultaneously, system reported differential out-of-limit event.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111126785A (en) * | 2019-11-29 | 2020-05-08 | 广东电网有限责任公司 | Electricity stealing behavior identification method and device |
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| CN2399734Y (en) * | 1999-11-12 | 2000-10-04 | 马学东 | Combined multi-users whole electronic watt-hour meter |
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| WO2011132377A1 (en) * | 2010-04-23 | 2011-10-27 | パナソニック株式会社 | Detection device and detection system |
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Patent Citations (4)
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| CN2399734Y (en) * | 1999-11-12 | 2000-10-04 | 马学东 | Combined multi-users whole electronic watt-hour meter |
| CN1690718A (en) * | 2004-04-26 | 2005-11-02 | 宋协礼 | Method for real-time monitoring electric quantity equilibrium of power supply/utilization system |
| CN101266263A (en) * | 2008-05-10 | 2008-09-17 | 珠海市华优电气技术有限公司 | Electric power metrological supervision system and supervision method |
| WO2011132377A1 (en) * | 2010-04-23 | 2011-10-27 | パナソニック株式会社 | Detection device and detection system |
Non-Patent Citations (1)
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| 任惠娟: "电表读数的准确性探析", 《绵阳师范学院学报》, vol. 28, no. 5, 31 May 2009 (2009-05-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111126785A (en) * | 2019-11-29 | 2020-05-08 | 广东电网有限责任公司 | Electricity stealing behavior identification method and device |
| CN111126785B (en) * | 2019-11-29 | 2022-08-02 | 广东电网有限责任公司 | Electricity stealing behavior identification method and device |
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