CN112505392A - Method and system for determining low-voltage electricity stealing point - Google Patents
Method and system for determining low-voltage electricity stealing point Download PDFInfo
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- CN112505392A CN112505392A CN202011286719.8A CN202011286719A CN112505392A CN 112505392 A CN112505392 A CN 112505392A CN 202011286719 A CN202011286719 A CN 202011286719A CN 112505392 A CN112505392 A CN 112505392A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
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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
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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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
- G01R31/088—Aspects of digital computing
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Abstract
The invention discloses a method and a system for determining a low-voltage electricity stealing point, wherein the method comprises the steps of respectively obtaining three-phase currents at the initial end and the tail end of a transformer area circuit; according to the three-phase current at the beginning and the end of the transformer area line, the difference value I of the total three-phase current is obtainedMaster and slave‑IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line; acquiring the sum of the detection current values of all the electric meters on the distribution room line to obtain a total detection value of the electric meters; difference value I of three-phase total current obtained based on same time pointMaster and slave‑IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line. The method and the device solve the technical problem that the low-voltage electricity stealing points are not easy to determine, can accurately determine the electricity stealing points from a large number of common users, and have the advantages of small calculation amount and low personnel costThe technical effect of (1).
Description
Technical Field
The embodiment of the invention relates to the technical field of power grids, in particular to a method and a system for determining low-voltage electricity stealing points.
Background
The electric energy metering is a basic guarantee of the benefits of electric power enterprises, is also a social and economic sun-rain meter, and has a self-evident importance. At present, under the high-voltage situation of electric power enterprise, the high-voltage electricity stealing governance work obtains showing the result, because it is big to the line loss influence, steals electric quantity big, discovers easily.
However, in the work of avoiding or indicating fraudulent use of electricity, the most difficult problem to be solved is the low-voltage electricity stealing problem, and the main reasons are as follows: 1. the number of low-voltage users is large, and a small number of low-voltage electricity stealing users are difficult to find out among millions of low-voltage users; 2. the low-voltage users are widely distributed, and the workload is large and difficult to implement simply by checking the users one by electricity utilization inspectors; 3. most electricity stealing users have small electricity stealing amount, and are difficult to find problems in the system and actual meter reading data; 4. the current novel electricity mode of stealing is numerous, and the remote control timesharing is stolen the electricity, and around metering device, regular superfrequency, strong magnetism steal electricity etc. are difficult to find out it among ordinary user.
Disclosure of Invention
The invention provides a method and a system for determining a low-voltage electricity stealing point, which aim to solve the technical problem that the low-voltage electricity stealing point is not easy to determine.
The embodiment of the invention provides a method for determining a low-voltage electricity stealing point, which comprises the following steps:
respectively acquiring three-phase currents at the initial end and the tail end of a transformer area circuit;
according to the three-phase current at the initial end and the tail end of the transformer area circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the distribution room line to obtain a total detection value of the electric meters;
The difference value I of the three-phase total current obtained based on the same time pointMaster and slave-IAuxiliary setAnd said electric meter total detectionThe value determines whether there is a power theft in the station line.
Further, the method further comprises:
dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of an electricity stealing point is determined:
respectively acquiring three-phase currents at the starting end and the tail end of the sub-circuit;
according to the three-phase current at the starting end and the tail end of the sub-circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the sub-line to obtain a total detection value of the electric meters;
the difference value I of the three-phase total current obtained based on the same time pointMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the sub-line.
Further, the difference value I of the total three-phase current is obtained according to the three-phase current at the starting end and the tail end of the transformer area lineMaster and slave-IAuxiliary setThe method comprises the following steps:
summing the collected three-phase current values at the initial end of the transformer area circuit to obtain a three-phase current I at the initial end of the transformer area circuit Master and slave；
Summing the collected three-phase current values at the tail end of the transformer area line to obtain a three-phase current I at the tail end of the transformer area lineAuxiliary set；
The three-phase current I at the initial end of the transformer area circuit is measuredMaster and slaveAnd a three-phase current I at the end of the platform lineAuxiliary setMaking a difference to obtain a difference value I of the total current of the three phasesMaster and slave-IAuxiliary set。
Further, the difference I of the total currents of the three phases obtained based on the same time pointMaster and slave-IAuxiliary setAnd the step of determining whether electricity stealing exists in the distribution area line or not by the electric meter total detection value comprises the following steps:
the difference value I of the total currents of the three phases is measuredMaster and slave-IAuxiliary setMaking a difference with the total detection value of the ammeter to obtain a current difference value;
and comparing the current difference value with a preset current threshold value, and determining that electricity stealing exists in the distribution room line if the current difference value is greater than the preset current threshold value.
Further, before comparing the current difference with a preset current threshold, the method further includes:
and subtracting the line loss value of the platform area line from the current difference value.
Further, after the accurate position of the electricity stealing point is determined, the method further comprises the following steps:
and reporting alarm information to a master station of the power distribution network, and reporting the electricity stealing information and the position information of the electricity stealing points to the master station of the power distribution network for storage and standby.
Further, still include:
if the distribution area line has branches, the following steps are sequentially executed for each branch until the accurate position of the electricity stealing point is determined:
respectively acquiring three-phase currents at the starting end and the tail end of the branch;
according to the three-phase current at the starting end and the tail end of the branch circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the branch to obtain a total detection value of the electric meters;
the difference value I of the three-phase total current obtained based on the same time pointMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the branch.
The embodiment of the invention also provides a system for determining the low-voltage electricity stealing point, which comprises:
the acquisition module is used for acquiring three-phase currents at the beginning and the end of the transformer area circuit;
the concentrator is used for acquiring the detection current values of all the electric meters on the distribution room line;
a measurement and control analysis unit for calculating the difference value I of the total three-phase current according to the three-phase current at the initial end and the tail end of the transformer area circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, I Auxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is usedMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the distribution area line.
Further, the system further comprises:
the line segmentation module is used for dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of an electricity stealing point is determined;
the acquisition module is also used for acquiring three-phase currents at the starting end and the tail end of the sub-circuit;
the concentrator is also used for obtaining the sum of the detection current values of all the electric meters on the sub-line to obtain the total detection value of the electric meters;
the measurement and control analysis unit is also used for solving the difference value I of the total three-phase current according to the three-phase current at the starting end and the tail end of the sub-circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is used Master and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the sub-line.
Further, the obtaining module comprises:
the main collecting unit is used for collecting a three-phase current value at the initial end of the platform area circuit;
the auxiliary collecting unit is used for collecting a three-phase current value at the tail end of the platform area circuit;
the measurement and control analysis unit is also used for summing the collected three-phase current values of the initial end of the transformer area line to obtainThree-phase current I at initial end of line of transformer areaMaster and slaveAnd summing the collected three-phase current values at the tail end of the transformer area line to obtain a three-phase current I at the tail end of the transformer area lineAuxiliary set。
The invention discloses a method and a system for determining a low-voltage electricity stealing point, wherein the method comprises the steps of respectively obtaining three-phase currents at the initial end and the tail end of a transformer area circuit; according to the three-phase current at the beginning and the end of the transformer area line, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line; acquiring the sum of the detection current values of all the electric meters on the distribution room line to obtain a total detection value of the electric meters; difference value I of three-phase total current obtained based on same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line. The technical problem that low-voltage electricity stealing points are not easy to determine is solved, the electricity stealing points can be accurately determined from a large number of common users, and the technical effects of small calculation amount and low personnel cost are achieved.
Drawings
FIG. 1(a) is a flowchart of a method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
fig. 1(b) is a structural diagram of a distribution area circuit according to an embodiment of the present invention;
FIG. 2 is a flowchart of another method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
FIG. 3 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
FIG. 5 is a flowchart of a method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
FIG. 7(a) is a flowchart of a method for determining a low voltage electricity stealing point according to another embodiment of the present invention;
fig. 7(b) is a structural diagram of another platform circuit according to the embodiment of the present invention;
FIG. 8 is a flowchart of a method for determining a low voltage electricity stealing point according to an embodiment of the present invention;
fig. 9 is a block diagram of a system for determining a low voltage electricity stealing point according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that the terms "first", "second", and the like in the description and claims of the present invention and the accompanying drawings are used for distinguishing different objects, and are not used for limiting a specific order. The following embodiments of the present invention may be implemented individually, or in combination with each other, and the embodiments of the present invention are not limited in this respect.
Fig. 1(a) is a flowchart of a method for determining a low-voltage electricity stealing point according to an embodiment of the present invention. Fig. 1(b) is a structural diagram of a distribution room circuit according to an embodiment of the present invention.
As shown in fig. 1(a), the method for determining the low-voltage electricity stealing point specifically comprises the following steps:
and step S101, respectively obtaining three-phase currents at the beginning and the end of the transformer area line.
Specifically, as shown in fig. 1(b), a main sampling unit 30 is disposed at a side of the platform line 10 close to the transformer 20, that is, at a start end of the platform line, and is configured to collect a three-phase current at the start end of the platform line according to a principle of electromagnetic conversion, and an auxiliary sampling unit 40 is disposed at a side of an end of the platform line, and is configured to collect a three-phase current at the end of the platform line according to a principle of electromagnetic conversion.
Step S102, calculating the difference value I of the total three-phase current according to the three-phase current at the initial end and the tail end of the transformer area circuit Master and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
Specifically, as shown in fig. 1(b), the measurement and control analysis unit 50 is disposed near the concentrator 60, and is directly connected to the concentrator 60 through a 485 line and a power line, and after three-phase currents at the beginning and the end of the line of the transformer area are obtained, the measurement and control analysis unit 50 sums I of the three-phase currents at the beginningMaster and slaveAnd sum of three-phase currents at the end IAuxiliary setObtaining the difference value I of the total current of three phases by making a differenceMaster and slave-IAuxiliary set. It should be noted that, theoretically, the sum of the three-phase currents at the end is 0, that is, the power consumption on the distribution network is the total power input into the distribution network through the transformer.
Step S103, obtaining the sum of the detection current values of all the electric meters on the distribution room line to obtain the total detection value of the electric meters.
Specifically, the measurement and control analysis unit 50 obtains the electric meters Z of all low-voltage users in the distribution area line by issuing tasks to the concentrator 60nAnd (wherein, n is 1, 2, and 3 … …), after the detected current values of the electric meters are collected by the collection 60, the collected detected current values of the electric meters are transmitted to the measurement and control analysis unit 50, and the measurement and control analysis unit 50 adds the detected current values of the electric meters to obtain the sum of the detected current values of all the electric meters, namely the total detected value of the electric meters.
Step S104, obtaining the difference value I of the total current of the three phases based on the same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line.
Specifically, since the electricity meter measures the electricity consumption of the user, if electricity stealing occurs in the district line, the stolen electricity cannot be measured by the electricity meter, and therefore the difference value I of the three-phase total current of the district line is obtainedMaster and slave-IAuxiliary setAfter the total detection value of the electric meter, the measurement and control analysis unit 50 only needs to obtain the difference value I of the three-phase total current of the line of the distribution room at the same time pointMaster and slave-IAuxiliary setAnd comparing the total detection value with the total detection value of the electric meter to see whether the total detection value and the total detection value are the same or not, so as to determine whether electricity stealing exists in the transformer area line or not.
It should be noted that, in order to ensure that the current values obtained by the measurement and control analysis unit 50 in the main and auxiliary sampling units and the detected current values of the electric meters collected by the concentrator are at the same time point, timing devices may be respectively disposed in the measurement and control analysis unit and the main and auxiliary sampling units, and the timing devices can implement automatic timing and ensure that the time of the current values collected by the devices is consistent.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the technical scheme, the method for determining the low-voltage electricity stealing point after the electricity stealing of the platform area line is determined further comprises the following steps. Fig. 2 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 2, the method for determining a low-voltage electricity stealing point according to the embodiment includes the following steps:
step S201, three-phase currents at the beginning and the end of the transformer district line are respectively obtained.
Step S202, calculating the difference value I of the total three-phase current according to the three-phase current at the beginning and the end of the transformer area lineMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
Step S203, obtaining the sum of the detected current values of all the electric meters on the distribution room line to obtain the total detected value of the electric meters.
Step S204, obtaining the difference value I of the total currents of the three phases based on the same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line.
And S205, dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of the electricity stealing point is determined.
Specifically, after it is determined that there is an electricity stealing phenomenon in the entire platform area line, in order to determine the accurate location of the electricity stealing point, it is also necessary to equally divide the platform area line into two sub-lines, and then perform the following steps for each sub-line.
And step S206, respectively acquiring three-phase currents at the starting end and the tail end of the sub-circuit.
Specifically, an auxiliary sampling unit needs to be added at the midpoint of the entire platform area line, in order to distinguish, in this application, the auxiliary sampling unit at the center point of the platform area line is referred to as a second auxiliary sampling unit, and the auxiliary sampling unit at the end of the platform area line is referred to as a first auxiliary sampling unit. And then, acquiring three-phase currents at the starting end and the tail end of the first section of the sub-circuit by using the main acquisition unit and the second auxiliary acquisition unit, and respectively acquiring three-phase currents at the starting end and the tail end of the second section of the sub-circuit by using the second auxiliary acquisition unit and the first auxiliary acquisition unit.
Step S207, calculating the difference value I of the total current of the three phases according to the three-phase current of the initial end and the tail end of the sub-circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
After three-phase currents at the beginning end and the tail end of each sub-circuit are obtained, the sum I of the three-phase currents at the beginning end of each sub-circuit is obtainedMaster and slaveAnd sum of three-phase currents at the end IAuxiliary setObtaining the difference value I of the total current of three phases by making a differenceMaster and slave-IAuxiliary set。
And S208, acquiring the sum of the detection current values of all the electric meters on the sub-line to obtain the total detection value of the electric meters.
Specifically, the detected current values of all the electric meters on each sub-line are obtained through the concentrator, and then the collected detected current values of all the electric meters are added to obtain the sum of the detected current values of all the electric meters on each sub-line, namely the total detected value of the electric meters.
Step S209, obtaining the difference I of the three-phase total current based on the same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the sub-line.
The same as the judgment of whether electricity stealing exists in the whole distribution area line or not, the obtained electricity stealing is the same as the judgment of whether electricity stealing exists in the whole distribution area line or notDifference value I of three-phase total current of sub-circuit at a time pointMaster and slave-IAuxiliary setAnd comparing the detected value with the total detected value of the electric meter to see whether the detected value is the same or not, so as to determine whether electricity stealing exists in each sub-line or not.
And by analogy, if electricity stealing exists in a certain section of sub-line, continuing to execute the above steps S205-S209 on the section of sub-line, and performing approximate investigation by adopting a method of distance halving and supplementary interpolation, namely adding a secondary sampling unit in a middle point of the line until the accurate position of the electricity stealing point is determined. In addition, in order to facilitate the addition of the secondary acquisition unit, the secondary acquisition unit is usually set according to the distance of the station area line, that is, the secondary acquisition unit is set at the middle point of the station area line, the middle point of the sub-line subdivided into the sub-lines, and the like.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the above technical solution, in this embodiment, the difference I of the total three-phase currents is obtained according to the three-phase currents at the beginning and the end of the transformer area line in the above embodimentMaster and slave-IAuxiliary setAnd (6) optimizing. Fig. 3 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 3, the method for determining a low-voltage electricity stealing point according to the embodiment includes the following steps:
step S301, three-phase currents at the beginning and the end of the transformer area line are respectively obtained.
Step S302, summing the collected three-phase current values of the initial end of the transformer area circuit to obtain a three-phase current I of the initial end of the transformer area circuitMaster and slave。
Particularly, the main acquisition unit acquires the distribution room by the principle of electromagnetic conversionThe three-phase current value of the initial end of the circuit is transmitted to a measurement and control analysis unit through a carrier module, the measurement and control analysis unit sums the three-phase current values to obtain a three-phase current I of the initial end of the circuit Master and slave。
Step S303, summing the collected three-phase current values of the tail end of the transformer area line to obtain a three-phase current I of the tail end of the transformer area lineAuxiliary set。
Specifically, the auxiliary acquisition unit acquires a three-phase current value at the tail end of a line in a transformer area through the principle of electromagnetic conversion, then transmits the acquired three-phase current value to the measurement and control analysis unit through the carrier module, and the measurement and control analysis unit sums the acquired three-phase current values to obtain a three-phase current I at the tail end of the lineAuxiliary set。
Step S304, three-phase current I at the initial end of the transformer district circuitMaster and slaveThree-phase current I at the end of the line of the station zoneAuxiliary setMaking a difference to obtain a difference value I of the total current of the three phasesMaster and slave-IAuxiliary set。
The three-phase current I at the initial end of the line of the transformer area is calculated and obtained by the measurement and control analysis unitMaster and slaveThree-phase current I at the end of the line of the station zoneAuxiliary setThen, the two are differed to obtain a difference value I of the total current of the three phasesMaster and slave-IAuxiliary set。
Step S305, obtaining the sum of the detected current values of all the electric meters on the distribution room line to obtain the total detected value of the electric meters.
Step S306, obtaining the difference value I of the total current of the three phases based on the same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the above technical solution, this embodiment obtains the data based on the same time point in the above embodimentsDifference value I of total current of three phasesMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution area line for optimization. Fig. 4 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 4, the method for determining a low-voltage electricity stealing point according to the embodiment includes the following steps:
step S401, three-phase currents at the beginning and the end of the transformer area line are respectively obtained.
Step S402, calculating the difference value I of the total three-phase current according to the three-phase current at the beginning and the end of the transformer area lineMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
Step S403, obtaining a sum of detected current values of all electric meters on the distribution room line, to obtain a total detected value of the electric meters.
Step S404, the difference value I of the three-phase total current is calculatedMaster and slave-IAuxiliary setAnd obtaining a current difference value by subtracting the total detection value of the ammeter.
Step S405, comparing the current difference value with a preset current threshold value, and if the current difference value is larger than the preset current threshold value, determining that electricity stealing exists in the distribution room line.
Specifically, the measurement and control analysis unit can convert the difference I of the total currents of the three phases Master and slave-IAuxiliary setAnd if the current difference value is larger than the preset current threshold value, namely the electricity consumption of the user measured by the ammeter in the transformer area circuit is different from the electricity consumption used in the transformer area circuit, indicating that electricity stealing exists in the transformer area circuit.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the above technical solution, before comparing the current difference with the preset current threshold, the method for determining the low-voltage electricity stealing point further includes: and subtracting the line loss value of the platform area line from the current difference value. Fig. 5 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 5, the method for determining a low-voltage electricity stealing point according to the embodiment includes the following steps:
step S501, three-phase currents at the beginning and the end of the transformer area line are respectively obtained.
Step S502, calculating the difference value I of the total three-phase current according to the three-phase current at the beginning and the end of the transformer area circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
Step S503, obtaining the sum of the detected current values of all the electric meters on the distribution room line to obtain the total detected value of the electric meters.
Step S504, the difference value I of the three-phase total current is calculatedMaster and slave-IAuxiliary setAnd obtaining a current difference value by subtracting the total detection value of the ammeter.
And step S505, subtracting the line loss value of the transformer area line from the current difference value.
In general, when no electricity stealing happens, the difference value I of the total current of three phases exists due to the loss of the lineMaster and slave-IAuxiliary setThere will be a certain difference with the total detected value of the electric meter, so the line loss needs to be removed in order to determine more accurately whether there is electricity stealing phenomenon in the distribution room line.
Step S506, comparing the current difference value obtained after the line loss value is subtracted with a preset current threshold value, and if the current difference value is larger than the preset current threshold value, determining that electricity stealing exists in the distribution room line.
And subtracting the line loss value on the distribution room line at the current difference value, comparing the current difference value with a preset current threshold value, and determining that electricity stealing exists in the distribution room line if the current difference value is still larger than the preset current threshold value.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the above technical scheme, after the accurate position of the electricity stealing point is determined, the method for determining the low-voltage electricity stealing point further comprises the following steps: and reporting the alarm information to a master station of the power distribution network, and reporting the electricity stealing information and the position information of the electricity stealing points to the master station of the power distribution network for storage and standby. Fig. 6 is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 6, the method for determining a low-voltage electricity stealing point according to the embodiment includes the following steps:
step S601, three-phase currents at the beginning and the end of the transformer area line are respectively obtained.
Step S602, calculating the difference value I of the total three-phase current according to the three-phase current at the beginning and the end of the transformer area circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
Step S603, obtaining the sum of the detected current values of all the electric meters on the distribution room line, and obtaining the total detected value of the electric meters.
Step S604, obtaining difference I of three-phase total current based on same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line.
Step S605, dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of the electricity stealing point is determined:
step S6051, three-phase currents at the beginning end and the end of the sub-line are respectively obtained.
Step S6052, calculating the difference value I of the total three-phase current according to the three-phase current at the starting end and the tail end of the sub-circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setIs the sum of three-phase currents at the tail end of the line.
And step S6053, acquiring the sum of the detection current values of all the electric meters on the sub-line to obtain the total detection value of the electric meters.
Step S6054, obtaining difference I of three-phase total current based on same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the sub-line.
Step S606, reporting alarm information to the main station of the power distribution network, and reporting the electricity stealing information and the position information of the electricity stealing points to the main station of the power distribution network for storage and standby.
Specifically, after the accurate position of the electricity stealing point is found out, the measurement and control analysis unit can actively send alarm information to a main station of the power distribution network, and the alarm information is stored in a cloud platform backup mode, so that third parties such as public security organs can conveniently obtain evidence, the real-time effectiveness of electricity stealing evidence is guaranteed, and the situation that the evidence is insufficient and disputes are caused due to the fact that an electricity stealing user maliciously destroys a site after knowing that a worker checks the electricity stealing is avoided.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
Based on the technical scheme, if the branch circuit exists in the transformer area line, the method for determining the low-voltage electricity stealing point further comprises the following steps. Fig. 7(a) is a flowchart of another method for determining a low-voltage electricity stealing point according to an embodiment of the present invention, and fig. 7(b) is a block diagram of another distribution room line according to an embodiment of the present invention, as shown in fig. 7(a), the method for determining a low-voltage electricity stealing point according to this embodiment includes the following steps:
And step S701, if branches exist in the distribution area line, sequentially executing the following steps for each branch until the accurate position of the electricity stealing point is determined.
Specifically, as shown in fig. 7(b), if there is a branch in the station area line, and there are a branch L1, a branch L2 and a branch L3 in fig. 7(b), in order to determine whether there is electricity stealing in the station area, it is necessary to treat each branch in the station area line as a new station area line, and then perform the following steps for each branch. And after the electricity stealing phenomenon in a certain branch is determined, dividing the branch into two sub-branches, and repeatedly executing the following steps by adopting distance halving and supplementary interpolation, namely, performing approximate investigation by adding a secondary sampling unit at the midpoint of the branch until the accurate position of the electricity stealing point is determined.
Illustratively, with branch L3 as the new station line, the following steps are performed, if it is determined that there is a power stealing in branch L3, branch L3 is divided into two sub-branches, and a new secondary sampling unit is provided at the midpoint of branch L3, and then the following steps are continued for each sub-branch until the exact location of the power stealing point is determined.
Step S702, respectively obtaining three-phase currents at the beginning and the tail ends of a branch;
Step S703, calculating the difference I of the total three-phase current according to the three-phase current at the beginning and the end of the branchMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
step S704, the sum of the detected current values of all the electric meters on the branch is obtained, and the total detected value of the electric meters is obtained.
Referring to fig. 7(b), Ln — Zn represents meters on the line, where Ln represents the branch where the meter is located, Zn represents the meter in the branch, and n is 1, 2, 3, … …
Step S705, obtaining the difference I of the three-phase total current based on the same time pointMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the branch.
This application is through comparing between the total current difference of three-phase and the ammeter total detected value of district circuit top both ends to the same time point platform, judges whether to have in the district circuit and steal the electricity, has solved the technical problem that the electricity point was stolen to difficult definite low pressure, has realized can following a large amount of common user accurate definite electricity stealing points, and the calculated amount is little, personnel are with low costs technical effect.
The method for determining a low-voltage electricity stealing point provided by the present application is specifically described below by a specific embodiment, fig. 8 is a flowchart of another method for determining a low-voltage electricity stealing point provided by the embodiment of the present invention, and as shown in fig. 8, the method for determining a low-voltage electricity stealing point specifically includes the following steps:
Step S801, the main acquisition unit and the auxiliary acquisition unit acquire three-phase currents of outgoing lines (namely the initial end and the tail end of the transformer area line) of the transformer and sum the three-phase currents respectively to obtain IMaster and slaveAnd IAuxiliary set。
Step S802, calculating the difference I of the three-phase total current of the main and auxiliary collecting unitsMaster and slave-IAuxiliary set。
And S803, the measurement and control analysis unit collects the current values of all the low-voltage electric meters under the line of the distribution room through the concentrator.
Step S804, solving the sum I of the current values of all the electric metersGeneral assemblyI.e. IGeneral assembly＝IZ1+IZ2+IZ3+…IZn。
Step S805, calculating the three-phase total current difference I at a certain momentMaster and slave-IAuxiliary setAnd sum of current values of electric meter IGeneral assemblyAnd (5) performing difference to obtain a difference value delta I of the real-time current of the two.
In step S806, the difference Δ I of the real-time current is compared with a preset current threshold a. If the difference value delta I of the real-time current is larger than the preset current threshold value a, performing approximate troubleshooting on the distribution room line according to a distance halving and supplementary interpolation method, and circulating the testing method until the accurate position of the electricity stealing point is determined.
In step S807, if the difference Δ I of the real-time currents is smaller than the preset current threshold a, it indicates that there is no electricity stealing in the line of the distribution room.
The embodiment of the present invention further provides a system for determining a low-voltage electricity stealing point, where the system for determining a low-voltage electricity stealing point is used to execute the method for determining a low-voltage electricity stealing point provided by the above embodiment of the present invention, and the system for determining a low-voltage electricity stealing point provided by the embodiment of the present invention is described in detail below.
Fig. 9 is a block diagram of a system for determining a low voltage electricity stealing point according to an embodiment of the present invention, and as shown in fig. 9, the system for determining a low voltage electricity stealing point mainly includes: acquisition module 91, concentrator 92, observe and control analysis unit 93, wherein:
the acquisition module 91 is used for acquiring three-phase currents at the beginning and the end of the transformer area circuit;
the concentrator 92 is used for acquiring the detection current values of all the electric meters on the distribution room line;
a measurement and control analysis unit 93 for calculating the difference value I of the total three-phase current according to the three-phase current at the beginning and the end of the line in the transformer areaMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is usedMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the distribution room line.
Optionally, the system for determining a low voltage electricity stealing point further comprises:
the line segmentation module is used for dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of an electricity stealing point is determined;
the obtaining module 91 is further configured to obtain three-phase currents at the beginning and the end of the sub-line;
The concentrator 92 is further configured to obtain a sum of detected current values of all the electric meters on the sub-line to obtain a total detected value of the electric meters;
the measurement and control analysis unit 93 is further configured to calculate a difference value I between total currents of three phases according to three-phase currents at the beginning and the end of the sub-lineMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is usedMaster and slave-IAuxiliary setAnd the total detection value of the electric meter determines whether electricity stealing exists in the sub-line.
Optionally, the obtaining module 91 includes:
the main collecting unit is used for collecting a three-phase current value at the initial end of the line of the transformer area;
the auxiliary collecting unit is used for collecting a three-phase current value at the tail end of the line of the transformer area;
the measurement and control analysis unit 93 is also used for collecting the station areasSumming the three-phase current values at the initial end of the line to obtain the three-phase current I at the initial end of the line in the transformer areaMaster and slaveAnd summing the collected three-phase current values at the tail end of the transformer area line to obtain a three-phase current I at the tail end of the transformer area lineAuxiliary set。
Optionally, the measurement and control analysis unit 93 is further configured to calculate a difference I between the three-phase total currentsMaster and slave-IAuxiliary setMaking a difference with the total detection value of the ammeter to obtain a current difference value; and comparing the current difference value with a preset current threshold value, and determining that electricity stealing exists in the line of the transformer area if the current difference value is greater than the preset current threshold value.
Optionally, before the measurement and control analysis unit 93 compares the current difference with the preset current threshold, the measurement and control analysis unit is further configured to subtract the line loss value of the platform area line from the current difference.
Optionally, after the measurement and control analysis unit 93 determines the accurate position of the electricity stealing point, the measurement and control analysis unit is further configured to report alarm information to a master station of the power distribution network, and report the electricity stealing information and the position information of the electricity stealing point to the master station of the power distribution network for storage and standby.
Optionally, if there is a branch in the distribution room line, each branch is provided with the above-mentioned obtaining module 91, the concentrator 92, and the measurement and control analysis unit 93, so as to determine which position of the electricity stealing point in the distribution room line is specifically located in which branch.
The system provided by the embodiment of the present invention has the same implementation principle and technical effect as the foregoing method embodiment, and for the sake of brief description, reference may be made to the corresponding contents in the foregoing method embodiment for the part of the embodiment of the apparatus that is not mentioned.
The method for determining the low-voltage electricity stealing point provided by the embodiment of the invention has the same technical characteristics as the system for determining the low-voltage electricity stealing point provided by the embodiment, so the same technical problems can be solved, and the same technical effect can be achieved.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method of determining a low voltage electricity stealing point, the method comprising:
respectively acquiring three-phase currents at the initial end and the tail end of a transformer area circuit;
according to the three-phase current at the initial end and the tail end of the transformer area circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the distribution room line to obtain a total detection value of the electric meters;
the difference value I of the three-phase total current obtained based on the same time point Master and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the distribution area line.
2. The method of claim 1, further comprising:
dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of an electricity stealing point is determined:
respectively acquiring three-phase currents at the starting end and the tail end of the sub-circuit;
according to the three-phase current at the starting end and the tail end of the sub-circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the sub-line to obtain a total detection value of the electric meters;
the difference value I of the three-phase total current obtained based on the same time pointMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the sub-line.
3. The method of claim 1, wherein the difference I of total three-phase currents is obtained according to the three-phase currents at the beginning and the end of the transformer area lineMaster and slave-IAuxiliary setThe method comprises the following steps:
summing the collected three-phase current values at the initial end of the transformer area circuit to obtain a three-phase current I at the initial end of the transformer area circuit Master and slave；
Summing the collected three-phase current values at the tail end of the transformer area line to obtain a three-phase current I at the tail end of the transformer area lineAuxiliary set；
The three-phase current I at the initial end of the transformer area circuit is measuredMaster and slaveAnd a three-phase current I at the end of the platform lineAuxiliary setMaking a difference to obtain a difference value I of the total current of the three phasesMaster and slave-IAuxiliary set。
4. Method according to claim 2, characterized in that said difference I of said three phase total currents obtained on the basis of the same point in timeMaster and slave-IAuxiliary setAnd the step of determining whether electricity stealing exists in the distribution area line or not by the electric meter total detection value comprises the following steps:
the difference value I of the total currents of the three phases is measuredMaster and slave-IAuxiliary setMaking a difference with the total detection value of the ammeter to obtain a current difference value;
and comparing the current difference value with a preset current threshold value, and determining that electricity stealing exists in the distribution room line if the current difference value is greater than the preset current threshold value.
5. The method of claim 4, further comprising, prior to said comparing said current difference to a preset current threshold:
and subtracting the line loss value of the platform area line from the current difference value.
6. The method of claim 2, after determining the exact location of the electricity stealing point, further comprising:
And reporting alarm information to a master station of the power distribution network, and reporting the electricity stealing information and the position information of the electricity stealing points to the master station of the power distribution network for storage and standby.
7. The method according to any one of claims 1-6, further comprising:
if the distribution area line has branches, the following steps are sequentially executed for each branch until the accurate position of the electricity stealing point is determined:
respectively acquiring three-phase currents at the starting end and the tail end of the branch;
according to the three-phase current at the starting end and the tail end of the branch circuit, the difference value I of the total three-phase current is obtainedMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of three-phase currents at the tail end of the line;
acquiring the sum of the detection current values of all the electric meters on the branch to obtain a total detection value of the electric meters;
the difference value I of the three-phase total current obtained based on the same time pointMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the branch.
8. A system for determining a point of low voltage electricity theft, the system comprising:
the acquisition module is used for acquiring three-phase currents at the beginning and the end of the transformer area circuit;
the concentrator is used for acquiring the detection current values of all the electric meters on the distribution room line;
A measurement and control analysis unit for calculating the difference value I of the total three-phase current according to the three-phase current at the initial end and the tail end of the transformer area circuitMaster and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is usedMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the distribution area line.
9. The system of claim 8, further comprising:
the line segmentation module is used for dividing the line of the transformer area with the determined existence of electricity stealing into two sections of sub-lines, and sequentially executing the following steps for each sub-line until the accurate position of an electricity stealing point is determined;
the acquisition module is also used for acquiring three-phase currents at the starting end and the tail end of the sub-circuit;
the concentrator is also used for obtaining the sum of the detection current values of all the electric meters on the sub-line to obtain the total detection value of the electric meters;
the measurement and control analysis unit is also used for solving the difference value I of the total three-phase current according to the three-phase current at the starting end and the tail end of the sub-circuit Master and slave-IAuxiliary setWherein, IMaster and slaveIs the sum of three-phase currents at the beginning of the line, IAuxiliary setThe sum of the three-phase currents at the tail end of the line is used for summing the obtained detection values of all the electric meters to obtain a total detection value of the electric meters, and the difference value I of the three-phase total currents obtained based on the same time point is usedMaster and slave-IAuxiliary setAnd the electric meter total detection value determines whether electricity stealing exists in the sub-line.
10. The system of claim 9, wherein the acquisition module comprises:
the main collecting unit is used for collecting a three-phase current value at the initial end of the platform area circuit;
the auxiliary collecting unit is used for collecting a three-phase current value at the tail end of the platform area circuit;
the measurement and control analysis unit is also used for summing the collected three-phase current values at the initial end of the transformer area circuit to obtain a three-phase current I at the initial end of the transformer area circuitMaster and slaveAnd summing the collected three-phase current values at the tail end of the transformer area line to obtain a three-phase current I at the tail end of the transformer area lineAuxiliary set。
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627516Y (en) * | 2002-03-05 | 2004-07-21 | 刘汪 | Electric larceny prevent device |
| CN101216505A (en) * | 2008-01-14 | 2008-07-09 | 深圳浩宁达仪表股份有限公司 | Electricity anti-theft device with remote communicating function and method |
| CN202929077U (en) * | 2012-07-25 | 2013-05-08 | 国网电力科学研究院 | Electricity stealing resistant device and its system |
| CN105353274A (en) * | 2015-11-25 | 2016-02-24 | 国网辽宁省电力有限公司阜新供电公司 | Electricity larceny prevention method |
| CN106093704A (en) * | 2016-06-15 | 2016-11-09 | 国网江苏省电力公司电力科学研究院 | The monitoring of a kind of electrical network stealing user and localization method and system |
| 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 |
| CN207067242U (en) * | 2017-06-28 | 2018-03-02 | 国网冀北电力有限公司电力科学研究院 | The electric energy collection device of Low-voltage Line Loss can be gathered |
| CN109101594A (en) * | 2018-07-27 | 2018-12-28 | 国家电网有限公司 | A kind of method, apparatus and terminal detecting stealing suspicion user |
| CN209486157U (en) * | 2018-10-26 | 2019-10-11 | 国网安徽省电力有限公司繁昌县供电公司 | A kind of band is opposed electricity-stealing the platform zone device of transporting function of alarming |
| CN110780129A (en) * | 2019-10-17 | 2020-02-11 | 国网吉林省电力有限公司电力科学研究院 | Electricity stealing and leakage positioning method based on current deviation analysis technology |
| CN110907719A (en) * | 2019-11-05 | 2020-03-24 | 深圳供电局有限公司 | Low-voltage line subsection line loss real-time monitoring device and method |
| CN110940872A (en) * | 2019-11-02 | 2020-03-31 | 国网上海市电力公司 | Method for analyzing structure and parameters of residential building low-voltage power distribution system by collecting data through HPLC |
| CN111289831A (en) * | 2020-03-26 | 2020-06-16 | 威胜信息技术股份有限公司 | Distribution line tail end sensing terminal and line state monitoring method |
| CN111308146A (en) * | 2019-11-22 | 2020-06-19 | 济南信通达电气科技有限公司 | Electricity larceny prevention monitoring method and device |
| CN111413594A (en) * | 2019-12-10 | 2020-07-14 | 王纪旋 | Accurate positioning method for electricity stealing |
-
2020
- 2020-11-17 CN CN202011286719.8A patent/CN112505392A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627516Y (en) * | 2002-03-05 | 2004-07-21 | 刘汪 | Electric larceny prevent device |
| CN101216505A (en) * | 2008-01-14 | 2008-07-09 | 深圳浩宁达仪表股份有限公司 | Electricity anti-theft device with remote communicating function and method |
| CN202929077U (en) * | 2012-07-25 | 2013-05-08 | 国网电力科学研究院 | Electricity stealing resistant device and its system |
| CN105353274A (en) * | 2015-11-25 | 2016-02-24 | 国网辽宁省电力有限公司阜新供电公司 | Electricity larceny prevention method |
| CN106093704A (en) * | 2016-06-15 | 2016-11-09 | 国网江苏省电力公司电力科学研究院 | The monitoring of a kind of electrical network stealing user and localization method and system |
| 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 |
| CN207067242U (en) * | 2017-06-28 | 2018-03-02 | 国网冀北电力有限公司电力科学研究院 | The electric energy collection device of Low-voltage Line Loss can be gathered |
| CN109101594A (en) * | 2018-07-27 | 2018-12-28 | 国家电网有限公司 | A kind of method, apparatus and terminal detecting stealing suspicion user |
| CN209486157U (en) * | 2018-10-26 | 2019-10-11 | 国网安徽省电力有限公司繁昌县供电公司 | A kind of band is opposed electricity-stealing the platform zone device of transporting function of alarming |
| CN110780129A (en) * | 2019-10-17 | 2020-02-11 | 国网吉林省电力有限公司电力科学研究院 | Electricity stealing and leakage positioning method based on current deviation analysis technology |
| CN110940872A (en) * | 2019-11-02 | 2020-03-31 | 国网上海市电力公司 | Method for analyzing structure and parameters of residential building low-voltage power distribution system by collecting data through HPLC |
| CN110907719A (en) * | 2019-11-05 | 2020-03-24 | 深圳供电局有限公司 | Low-voltage line subsection line loss real-time monitoring device and method |
| CN111308146A (en) * | 2019-11-22 | 2020-06-19 | 济南信通达电气科技有限公司 | Electricity larceny prevention monitoring method and device |
| CN111413594A (en) * | 2019-12-10 | 2020-07-14 | 王纪旋 | Accurate positioning method for electricity stealing |
| CN111289831A (en) * | 2020-03-26 | 2020-06-16 | 威胜信息技术股份有限公司 | Distribution line tail end sensing terminal and line state monitoring method |
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