CN105353274A - Electricity larceny prevention method - Google Patents
Electricity larceny prevention method Download PDFInfo
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- CN105353274A CN105353274A CN201510830578.4A CN201510830578A CN105353274A CN 105353274 A CN105353274 A CN 105353274A CN 201510830578 A CN201510830578 A CN 201510830578A CN 105353274 A CN105353274 A CN 105353274A
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- phase
- electricity
- power supply
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- supply unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention discloses an electricity larceny prevention method. The electricity larceny prevention method includes the concrete steps: acquiring the phase current value on a power supply unit output phase line, and damaging the waveform characteristic of a sine wave of each phase alternating current; acquiring the phase current value on the power supply unit output phase line and the partial current values for all the users who are supplied with power by the power supply unit, and transmitting the alternating current of the waveform characteristic of the sine wave to an electricity utilization end; and recovering the waveform characteristic of the sine wave of each phase alternating current at the electricity utilization end, comparing the phase current value with the sum of the partial current values, and determining that electricity larceny exists on a power transmission line of the power supply unit. The electricity larceny prevention method can further reduce occurrence of electricity larceny prevention, and can determine whether electricity larceny occurs on a power supply line by comparing difference between the phase current value and the sum of the partial current values for all the single phase users who are supplied with power by the phase line; and as no technology loss exists on the phase line and the branch lines, for the current value, the intelligence level for electricity larceny prevention alarm can be greatly improved and the defect for false alarm can be avoided.
Description
Technical field
The present invention relates to a kind of method of thief-proof, specifically a kind of anti-electricity-theft method.
Background technology
In recent years, the stealing event in each city is in rising trend.Stealing causes fortune to lose not only to country and power supply enterprise, also may cause the accident such as phase shortage, short circuit, jeopardize the person and device security.Therefore, accurate detected stealing event to be disciplined as a warning be the important measures of electricity consumption order of defending the national benefit, safeguard.
The inner anti-theft electricity technology of existing intelligent electric meter relative maturity, but just for the anti-theft electricity technology outside ammeter, in practice, also there is the difficulty of enforcement.Because in actual applications, also there is very long one section of power supply distance from summary table to each submeter, had the distance of power supply, will there is the loss of power supply, this loss is defined as technological attrition in industry.This technological attrition and power supply distance, electric power conductor cut face Zhi, the material of wire, the mode of erection, the size of each submeter load, each submeter payload the uncertain technical factor such as rate of change, three-phase load unbalance relevant, therefore the uncertain of above-mentioned correlation technique factor brings not confirmable technological attrition.As from the foregoing, the electricity of summary table is the electricity containing technological attrition, and the electricity of submeter is not containing the electricity of technological attrition, and the electricity that so electricity of summary table deducts submeter exists difference, and how many this differences is that stealing electricity causes, how much be that technological attrition causes, cannot differentiate in the prior art, thus cause badly determining when setting alarm threshold value, as excessive in threshold value setting, anti-electricity-theft warning effect is bad, and setting threshold value is too small, easily produces the defect of wrong report.Therefore the existing anti-electricity-theft scheme based on comparision of quantity of electricity is difficult to accurately realize intelligent alarm because there is technological attrition in actual applications.
Summary of the invention
The object of the present invention is to provide a kind of anti-electricity-theft method that efficiency of opposing electricity-stealing is high, effective, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
An anti-electricity-theft method, concrete steps are as follows:
(1) gather the phase current values in power supply unit output phase line, destroy the sine waveform feature of every cross streams electricity;
(2) phase current values in collection power supply unit output phase line and power supply unit export point current value of all users that phase line is powered, and the alternating current having been gone bad sine waveform feature is sent to electricity consumption end;
(3) recover the sine waveform shape feature of the every cross streams electricity be destroyed at electricity consumption end, more described phase current values and described point of current value sum, the transmission line of electricity judging described power supply unit exists stealing.
As the further scheme of the present invention: described step (3) comprises the steps:
1) positive half cycle phase waveform electric wave is received;
2) carry out first time phase place zero passage detection, detect by the zero crossing moment of positive half cycle phase waveform electric wave zero passage to negative half period phase waveform electric wave;
3) produce trigger pip after zero crossing being detected, close positive half cycle phase waveform electric wave and export, start to export negative half period phase waveform electric wave;
4) negative half period phase waveform electric wave is received;
5) carry out second time phase place zero passage detection, detect by the zero crossing moment of negative half period phase waveform electric wave zero passage to positive half cycle phase waveform electric wave;
6) produce trigger pip after zero crossing being detected, close negative half period phase waveform electric wave and export, turn to step 1).
As the further scheme of the present invention: described first time phase place zero passage detection be detect that signal is pressed onto zero point from positive electricity, described second time phase place zero passage detection detects that signal is pressed onto zero point from negative electricity.
As the present invention's further scheme: described power supply unit adopts three-phase four-wire system and/or single-phase-two-wire powering mode.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention follows the tracks of multi-angle and formulates from prevention, process, later stage Managed Solution of opposing electricity-stealing, the generation of stealing situation can be reduced to a greater degree, thus be conducive to ensureing power supply enterprise's legitimate rights and interests and electric power netting safe running, judge whether supply line stealing occurs by the difference of point current value sum comparing each single-phase user that phase current values and this phase line are powered, because current value does not exist technological attrition in phase line and branched line, substantially increase the intelligent level of anti-electricity-theft warning, avoid the defect of wrong report.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
An anti-electricity-theft method, concrete steps are as follows:
(1) phase current values in power supply unit output phase line is gathered, destroy the sine waveform feature of every cross streams electricity, the phase current exported in phase line by phase current sampling unit is sampled, and the phase current values of collection is exported to stealing judging unit by power carrier or communication;
(2) phase current values in collection power supply unit output phase line and power supply unit export point current value of all users that phase line is powered, the alternating current having been gone bad sine waveform feature is sent to electricity consumption end, detected point current value of each user by the Single-phase supply meter being positioned at user side, and by power carrier or communication, this point of current value is exported to stealing judging unit.Wherein, each Single-phase supply meter correspondence is provided with an independent address code, and the address code packing of each point of current value and corresponding ammeter sends to stealing judging unit;
(3) recover the sine waveform shape feature of the every cross streams electricity be destroyed at electricity consumption end, more described phase current values and described point of current value sum, the transmission line of electricity judging described power supply unit exists stealing, specifically comprises the steps:
1) positive half cycle phase waveform electric wave is received;
2) carry out first time phase place zero passage detection, detect by the zero crossing moment of positive half cycle phase waveform electric wave zero passage to negative half period phase waveform electric wave;
3) produce trigger pip after zero crossing being detected, close positive half cycle phase waveform electric wave and export, start to export negative half period phase waveform electric wave;
4) negative half period phase waveform electric wave is received;
5) carry out second time phase place zero passage detection, detect by the zero crossing moment of negative half period phase waveform electric wave zero passage to positive half cycle phase waveform electric wave;
6) produce trigger pip after zero crossing being detected, close negative half period phase waveform electric wave and export, turn to step 1).
Described first time, phase place zero passage detection detects that signal is pressed onto zero point from positive electricity, described second time phase place zero passage detection detects that signal is pressed onto zero point from negative electricity, and stealing judging unit judges whether stealing occurs by the difference of point current value sum of user comparing phase current values and this phase line and power.In theory, phase current values in transmission of electricity phase line is equal with point electric current sum of the user that this phase line is powered, difference should be zero, consider phase current sampling unit, the current measurement of user's current sampling unit exists error, set the threshold to the 0-1% of phase current values, when phase current and the difference of point electric current sum are greater than this setting with it, then there is stealing in the transmission line of electricity judging this phase line of supply line.
Described power supply unit adopts three-phase four-wire system and/or single-phase-two-wire powering mode, when power supply unit adopts three-phase four-wire power supply pattern, power supply unit is correspondingly connected to multiple single-phase user through multiple distribution performance element, arbitrary phase circuit that distribution performance element is used in gating three phase line exports single-phase user to as single phase power supply circuit, and detect the current value of the single phase power supply circuit of distribution performance element outgoing side, and current value is exported to stealing judging unit; Meanwhile, the input end of each single-phase user is provided with user's current acquisition unit, and an each user's point current value is exported to stealing judging unit by user's current acquisition unit.In the present embodiment, user's current sampling unit can be the current detecting unit in user's intelligent electric meter, also can be independent electric current and adopt unit, and user's electric current adopts unit to there being independent address code, so that stealing judging unit carries out identification to dividing user corresponding to current value; In like manner, each distribution execution module is also provided with independent address code, so that distinguish each current value in stealing judging unit.Due to, stealing judging unit obtains point current value of phase current values in transmission of electricity phase line, the current value of the single-phase outgoing side of each distribution execution module and each single-phase user simultaneously, therefore whether stealing judging unit both can judge between three-phase four-wire power and distribution execution module by the difference of the distribution performance element outgoing side current value sum comparing phase current values and be connected with this phase line supply line stealing occurs; Again can by comparing point current value of the current value of stealing execution module outgoing side and the single-phase user corresponding with this distribution execution module, whether the power supply branch road judging distribution execution module there is stealing.Like this, both improve the accurate precision of long-range anti-electricity-theft warning, and stealing can have been identified again position occurs, thus had an accident and process this stealing as early as possible and have an accident for identifying stealing as soon as possible and offer help.
The present invention follows the tracks of multi-angle and formulates from prevention, process, later stage Managed Solution of opposing electricity-stealing, the generation of stealing situation can be reduced to a greater degree, thus be conducive to ensureing power supply enterprise's legitimate rights and interests and electric power netting safe running, judge whether supply line stealing occurs by the difference of point current value sum comparing each single-phase user that phase current values and this phase line are powered, because current value does not exist technological attrition in phase line and branched line, substantially increase the intelligent level of anti-electricity-theft warning, avoid the defect of wrong report.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (4)
1. an anti-electricity-theft method, is characterized in that, concrete steps are as follows:
(1) gather the phase current values in power supply unit output phase line, destroy the sine waveform feature of every cross streams electricity;
(2) phase current values in collection power supply unit output phase line and power supply unit export point current value of all users that phase line is powered, and the alternating current having been gone bad sine waveform feature is sent to electricity consumption end;
(3) recover the sine waveform shape feature of the every cross streams electricity be destroyed at electricity consumption end, more described phase current values and described point of current value sum, the transmission line of electricity judging described power supply unit exists stealing.
2. anti-electricity-theft method according to claim 1, is characterized in that, described step (3) comprises the steps:
1) positive half cycle phase waveform electric wave is received;
2) carry out first time phase place zero passage detection, detect by the zero crossing moment of positive half cycle phase waveform electric wave zero passage to negative half period phase waveform electric wave;
3) produce trigger pip after zero crossing being detected, close positive half cycle phase waveform electric wave and export, start to export negative half period phase waveform electric wave;
4) negative half period phase waveform electric wave is received;
5) carry out second time phase place zero passage detection, detect by the zero crossing moment of negative half period phase waveform electric wave zero passage to positive half cycle phase waveform electric wave;
6) produce trigger pip after zero crossing being detected, close negative half period phase waveform electric wave and export, turn to step 1).
3. anti-electricity-theft method according to claim 2, is characterized in that, described first time phase place zero passage detection be detect that signal is pressed onto zero point from positive electricity, described second time phase place zero passage detection detects that signal is pressed onto zero point from negative electricity.
4. anti-electricity-theft method according to claim 1, is characterized in that, described power supply unit adopts three-phase four-wire system and/or single-phase-two-wire powering mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510830578.4A CN105353274A (en) | 2015-11-25 | 2015-11-25 | Electricity larceny prevention method |
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| CN201510830578.4A CN105353274A (en) | 2015-11-25 | 2015-11-25 | Electricity larceny prevention method |
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| CN105353274A true CN105353274A (en) | 2016-02-24 |
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| CN201510830578.4A Pending CN105353274A (en) | 2015-11-25 | 2015-11-25 | Electricity larceny prevention method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771445A (en) * | 2016-11-10 | 2017-05-31 | 国网山东省电力公司昌邑市供电公司 | Anti-electricity-theft device |
| CN107576834A (en) * | 2017-08-21 | 2018-01-12 | 国家电网公司 | Massive quantity power supply and measurement electricity-stealing simulating and anti-electricity-theft proof of algorithm platform |
| CN111537793A (en) * | 2020-05-26 | 2020-08-14 | 惠州Tcl移动通信有限公司 | Power consumption testing method and system of mobile terminal |
| CN111987795A (en) * | 2020-07-27 | 2020-11-24 | 国网福建省电力有限公司 | Power distribution low-voltage branch line monitoring system and method based on Internet of things |
| CN112505392A (en) * | 2020-11-17 | 2021-03-16 | 广东电网有限责任公司 | Method and system for determining low-voltage electricity stealing point |
| CN113035032A (en) * | 2021-03-09 | 2021-06-25 | 山东电力高等专科学校 | Serial half-wave rectification type electricity stealing simulation device and simulation method |
| CN113945791A (en) * | 2021-10-22 | 2022-01-18 | 广东电网有限责任公司 | Anti-electricity-stealing monitoring method, system, device and computer storage medium |
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| CN1114051A (en) * | 1994-06-09 | 1995-12-27 | 陈朝晖 | Method for anti-fraudulent use electricity by short-circuit |
| CN101178415A (en) * | 2007-09-03 | 2008-05-14 | 刘爱民 | Electrical energy meter anti-theft electricity technology |
| CN101216503A (en) * | 2008-01-02 | 2008-07-09 | 武汉国测科技股份有限公司 | Hierarchical type electricity anti-theft system and method |
| CN103151833A (en) * | 2013-02-01 | 2013-06-12 | 马新国 | Electricity larceny prevention method and device |
| CN103558431A (en) * | 2013-10-31 | 2014-02-05 | 长沙高升电子电器科技有限公司 | Remote electricity larceny prevention device and remote electricity larceny prevention method |
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2015
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Patent Citations (5)
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| CN1114051A (en) * | 1994-06-09 | 1995-12-27 | 陈朝晖 | Method for anti-fraudulent use electricity by short-circuit |
| CN101178415A (en) * | 2007-09-03 | 2008-05-14 | 刘爱民 | Electrical energy meter anti-theft electricity technology |
| CN101216503A (en) * | 2008-01-02 | 2008-07-09 | 武汉国测科技股份有限公司 | Hierarchical type electricity anti-theft system and method |
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| CN103558431A (en) * | 2013-10-31 | 2014-02-05 | 长沙高升电子电器科技有限公司 | Remote electricity larceny prevention device and remote electricity larceny prevention method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771445A (en) * | 2016-11-10 | 2017-05-31 | 国网山东省电力公司昌邑市供电公司 | Anti-electricity-theft device |
| CN107576834A (en) * | 2017-08-21 | 2018-01-12 | 国家电网公司 | Massive quantity power supply and measurement electricity-stealing simulating and anti-electricity-theft proof of algorithm platform |
| CN111537793A (en) * | 2020-05-26 | 2020-08-14 | 惠州Tcl移动通信有限公司 | Power consumption testing method and system of mobile terminal |
| CN111537793B (en) * | 2020-05-26 | 2023-02-28 | 惠州Tcl移动通信有限公司 | Power consumption testing method and system of mobile terminal |
| CN111987795A (en) * | 2020-07-27 | 2020-11-24 | 国网福建省电力有限公司 | Power distribution low-voltage branch line monitoring system and method based on Internet of things |
| CN112505392A (en) * | 2020-11-17 | 2021-03-16 | 广东电网有限责任公司 | Method and system for determining low-voltage electricity stealing point |
| CN113035032A (en) * | 2021-03-09 | 2021-06-25 | 山东电力高等专科学校 | Serial half-wave rectification type electricity stealing simulation device and simulation method |
| CN113945791A (en) * | 2021-10-22 | 2022-01-18 | 广东电网有限责任公司 | Anti-electricity-stealing monitoring method, system, device and computer storage medium |
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Application publication date: 20160224 |
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