CN108572270B - Rural power grid electricity stealing detection system and control method thereof - Google Patents
Rural power grid electricity stealing detection system and control method thereof Download PDFInfo
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- CN108572270B CN108572270B CN201810348874.4A CN201810348874A CN108572270B CN 108572270 B CN108572270 B CN 108572270B CN 201810348874 A CN201810348874 A CN 201810348874A CN 108572270 B CN108572270 B CN 108572270B
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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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention provides a rural power grid electricity stealing detection system and a control method thereof, wherein a cluster head node is arranged on a wire outlet end of a transformer or a power transmission main line for supplying power to N users, an intelligent power distribution cabinet is arranged at a house-entering end of each user and is used as a sub-node, each cluster head node and N sub-nodes in a jurisdiction range form a cluster, the cluster head node judges whether electricity stealing occurs in the jurisdiction range or not by collecting power consumption parameters on the power transmission main line and user power consumption parameters of the N sub-nodes in the cluster, when the electricity stealing occurs, the cluster head node sends alarm prompt information to the N sub-nodes in the cluster, and simultaneously distributes additional electric quantity caused by the electricity stealing to the N users in the cluster. The effect is as follows: the power stealing phenomenon can be found and stopped in real time by fully utilizing local supervision and management, the maintenance cost of the power system is reduced, and meanwhile, the loss of a power management department is reduced based on a power consumption sharing mechanism.
Description
Technical Field
The invention relates to an electricity stealing detection technology in a power grid, in particular to an electricity stealing detection system for a rural power grid and a control method thereof.
Background
The power utilization of rural power grids is very seasonal, load peaks occur in summer and winter every year, the stability of power grid operation is reduced, the phenomenon of power stealing of the power grids frequently occurs, and particularly, the phenomenon of power stealing of rural power drainage and irrigation, air conditioners in resident life, heating power utilization and the like is prominent.
The reasons for electricity stealing by users are manifold:
(1) the legal concept of the user is not strong, and the illegal knowledge of electricity stealing is not clear;
(2) the user is driven by economic benefits, and living cost is saved in order to reduce the expenditure of electricity charge;
(3) the power supply management has a leak, the power marketing management facilities and the management system are incomplete, on one hand, the system is difficult to realize the monitoring and management of the electricity stealing, on the other hand, the system is difficult to examine on the spot aiming at remote areas, and individual workers are also not willing to perform the responsibility, so the responsibility is not strong;
(4) the combined striking strength of electricity stealing molecules is not enough, and there is a lucky psychology.
In the prior art, chinese patent 201610424104.4 discloses a method and a system for monitoring and locating a power-stealing user in a power grid, which can locate the power-stealing user from a technical level, but in practical application, it is still very difficult to obtain evidence in the field in rural areas, and the management cost is relatively high.
Disclosure of Invention
In order to solve the problems, the invention firstly provides a rural power grid electricity stealing detection system, which associates adjacent users together and solves the problem of difficult management of rural power grid electricity stealing through localized supervision and a responsibility penalty system.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a rural power grid electricity stealing detection system is characterized in that an electric energy information management device is arranged on a wire outlet end of a transformer or a power transmission main line for supplying power to N users and serves as a cluster head node, an intelligent power distribution cabinet is arranged at an end of each user entering the house and serves as a sub-node, each cluster head node and N sub-nodes in a jurisdiction range form a cluster, the cluster head node judges whether electricity stealing occurs in the jurisdiction range or not by collecting power utilization parameters on a power transmission main line and user power utilization parameters of the N sub-nodes in the cluster, when the electricity stealing occurs, the cluster head node sends alarm prompt information to the N sub-nodes in the cluster, additional electric quantity caused by electricity stealing is distributed to the N users in the cluster, and N is a positive integer greater than or equal to 1.
Usually, rural power grid wiring is planned based on the geographical location of a farmer, and adjacent users are provided with a group of public main lines to a transformer, and then lower pole lines are connected to power distribution cabinets at user service ends on the main lines, and then the power distribution cabinets are distributed to various power distribution switches or sockets of residents. The invention forms a cluster by N adjacent users, supervises and manages each sub-node in the cluster by setting a cluster head node, can detect whether the cluster node has electricity stealing phenomenon by utilizing various existing detection means, once the electricity stealing phenomenon occurs to a user, the cluster head node sends alarm prompt information to each sub-node in the cluster, the adjacent users can know that the electricity utilization is abnormal, and the cluster head node plays a role of mutual supervision and mutual management.
Further, the electric energy information management device as the cluster head node includes a first processor, and a first current detection module, a first voltage detection module, a first storage module, a first power carrier communication module, a first display module, and a first power conversion module connected to the first processor, wherein:
the first processor detects electricity utilization parameters on the connected power transmission main line through the first current detection module and/or the first voltage detection module;
the first power carrier communication module is used for realizing the communication between the cluster head node and N corresponding sub-nodes in the cluster;
the first storage module is used for storing running programs and data;
the first display module is used for displaying the system state and the total electricity consumption of the users in the cluster;
the first power supply conversion module is used for realizing power supply conversion and providing a stable direct current working power supply for the electric energy information management equipment.
Further, as the intelligent power distribution cabinet of sub-node, include second treater and the second current detection module, second voltage detection module, second storage module, second power line carrier communication module, warning suggestion module, second display module, the second power conversion module of being connected with this second treater, wherein:
the second processor detects power utilization information on the connected user service line through the second current detection module and/or the second voltage detection module;
the second power carrier communication module is used for realizing communication with the cluster head node;
the second storage module is used for storing running programs and data;
the second display module is used for displaying the system state, the actual electricity consumption of the current user and the extra apportioned amount caused by electricity stealing of the users in the cluster;
the alarm prompting module is used for realizing the prompting of electricity stealing phenomenon;
and the second power supply conversion module is used for realizing power supply conversion and providing a stable direct-current working power supply for each functional module in the intelligent power distribution cabinet.
Further, in order to avoid the situation that a user opens the cabinet at will, the cabinet is pulled and connected in disorder, the intelligent power distribution cabinet is further provided with an electric control cabinet door lock, and a control module of the electric control cabinet door lock is connected with the processor.
Furthermore, the alarm prompt module comprises a string of LED lamp groups arranged along the edge of the cabinet door of the intelligent power distribution cabinet, and when the electricity stealing phenomenon occurs, red LEDs in the LED lamp groups flash at a first frequency; when the power is normally used, the red LED in the LED lamp set flickers according to the second frequency, and whether the abnormality occurs is prompted to a user by setting alarm light with different frequencies.
Based on the system design, the invention also provides a specific control method, which comprises the following steps:
s1: the household end equipment collects the output end voltage and current of the electric energy meter and determines the electricity consumption of the user;
s2: the customer premises equipment uploads the acquired data to the cluster head equipment;
s3: the cluster head equipment judges whether a power stealing phenomenon exists in a user in a cluster;
s4: if not, returning to the S1 for cycle execution, and if the electricity stealing phenomenon exists, entering the step S5;
s5: giving an electricity stealing prompt;
s6: and (4) sharing the surplus power consumption by the users in the cluster, and returning to the step S1 for circular detection.
Optionally, in step S3, the cluster head device calculates the actual power consumption of each user according to the current value and the voltage value collected by each user end device in the cluster, and records the actual power consumption asPiAnd i is 1 … … N, the cluster head equipment acquires the power utilization parameters on the power transmission main line to obtain the total power utilization P of N users, and the power deviation is calculated
And when the electric quantity deviation is larger than a preset threshold value, the phenomenon of electricity stealing is considered to exist.
Optionally, the cluster head device transmits the current I and the voltage U on the power transmission main line and the current I collected by each user end deviceiSum voltage UiAnd as an input feature vector, judging the power transmission state of the current power grid by using a pre-trained BP neural network as a classification recognizer, wherein the result output by the classification recognizer is normal power utilization or existence of electricity stealing.
Further, when the classification identifier judges that electricity stealing exists, the corresponding alarm prompt signals are broadcast to the intelligent power distribution cabinets of all users in the cluster through the power line carrier communication module, and alarm prompt information is given through the intelligent power distribution cabinets.
Further, the cluster head device distributes the detected electric quantity deviation value delta P to N users in the cluster, and the actual electric quantity and the distributed additional electric quantity are displayed in the intelligent power distribution cabinet corresponding to each user through the display module.
Compared with the prior art, the technical scheme that this application provided, the technological effect or advantage that have are:
the system is simple in structure and convenient to arrange, can be upgraded and perfected based on the existing intelligent electric meter, can fully utilize local supervision and management to discover and stop electricity stealing phenomena in real time, and can form a cluster of adjacent users for mutual supervision and responsibility sharing, so that the maintenance cost of the electric power system is greatly reduced, and meanwhile, the loss of an electric power management department is reduced based on a power consumption sharing mechanism.
Drawings
FIG. 1 is a system architecture diagram of the present invention;
FIG. 2 is a schematic block circuit diagram of the cluster head apparatus of FIG. 1;
FIG. 3 is a schematic block diagram of a circuit of the intelligent power distribution cabinet of the subscriber side;
FIG. 4 is a layout diagram of an LED alarm lamp in the intelligent power distribution cabinet;
FIG. 5 is a control flow chart of the present invention.
Detailed Description
The embodiment of the application provides a rural power grid electricity stealing detection system and a control method thereof, wherein the system enables neighbor nodes to form a cluster, users in the cluster supervise and maintain electricity utilization safety together, the electricity stealing phenomenon is timely discovered and corrected, the electricity stealing cost is transferred to adjacent users, the loss of an electric power department is reduced, and the enthusiasm of mutual supervision and management of the users in the cluster is improved.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and specific embodiments.
As shown in fig. 1, in a rural power grid electricity stealing detection system, an electric energy information management device is arranged at an outlet end of a transformer or a power transmission main line for supplying power to N users as a cluster head node, an intelligent power distribution cabinet is arranged at an entrance end of each user as a sub-node, each cluster head node and N sub-nodes in a jurisdiction range form a cluster, the cluster head node judges whether an electricity stealing phenomenon occurs in the jurisdiction range by collecting power consumption parameters on a power transmission main line and user power consumption parameters of the N sub-nodes in the cluster, when the electricity stealing phenomenon occurs, the cluster head node sends alarm prompt information to the N sub-nodes in the cluster, and simultaneously distributes additional electric quantity caused by the electricity stealing to the N users in the cluster. When the system is configured, the installation position of the cluster head node and the value of N are set according to the rural user position distribution and the circuit layout of a rural power grid, a rural house is generally in an institution-type group layout, a group of power transmission main lines generally supply power to a plurality of users in one institution, therefore, the plurality of users in the same institution are bound to the same cluster head node, neighbors are supervised and managed mutually, and meanwhile, the additional electric quantity caused by electricity stealing is shared by adjacent users, so that the loss of a power management department is reduced, the enthusiasm of the autonomy of villagers is improved, and the problem of difficulty in supervision and management of electricity stealing of the rural power grid is solved.
As shown in fig. 2, in order to satisfy the supervision and management functions of the cluster head node, the power information management apparatus as the cluster head node includes a first processor, and a first current detection module, a first voltage detection module, a first storage module, a first power carrier communication module, a first display module, and a first power conversion module connected to the first processor, wherein:
the first processor detects electricity utilization parameters on the connected power transmission main line through the first current detection module and/or the first voltage detection module;
the first power carrier communication module is used for realizing the communication between the cluster head node and N corresponding sub-nodes in the cluster;
the first storage module is used for storing running programs and data;
the first display module is used for displaying the system state and the total electricity consumption of the users in the cluster;
the first power supply conversion module is used for realizing power supply conversion and providing a stable direct current working power supply for the electric energy information management equipment.
As shown in fig. 3, in order to realize information collection and alarm prompt of each sub-node, the intelligent power distribution cabinet as a sub-node includes a second processor, and a second current detection module, a second voltage detection module, a second storage module, a second power carrier communication module, an alarm prompt module, a second display module, and a second power conversion module connected to the second processor, where:
the second processor detects power utilization information on the connected user service line through the second current detection module and/or the second voltage detection module;
the second power carrier communication module is used for realizing communication with the cluster head node;
the second storage module is used for storing running programs and data;
the second display module is used for displaying the system state, the actual electricity consumption of the current user and the extra apportioned amount caused by electricity stealing of the users in the cluster;
the alarm prompting module is used for realizing the prompting of electricity stealing phenomenon;
and the second power supply conversion module is used for realizing power supply conversion and providing a stable direct-current working power supply for each functional module in the intelligent power distribution cabinet.
Through the design, the cluster head nodes and the sub-nodes can use the power carrier communication modules for mutual networking communication, information transmission among the nodes is met, on one hand, the cluster head nodes can automatically acquire power utilization information of the sub-nodes, on the other hand, abnormal information of a power grid can be simultaneously broadcast to the sub-nodes in the cluster, and users can find and correct abnormal power utilization behaviors conveniently in time.
In order to ensure the electricity taking safety of the intelligent power distribution cabinet and prevent a user from randomly disassembling the cabinet and adjusting the meter, the intelligent power distribution cabinet is further provided with an electric control cabinet door lock, and a control module of the electric control cabinet door lock is connected with the processor.
As shown in fig. 4, in a specific implementation process, the alarm prompting module includes a string of LED lamp sets arranged along an edge of the cabinet door of the intelligent power distribution cabinet, and when a power stealing phenomenon occurs, red LEDs in the LED lamp sets flash at a first frequency; when normal power consumption, red LED in the LED banks flashes according to the second frequency, the mark in fig. 4 is 1-LED banks, 2-display module, 3-cabinet door, can see through fig. 4, LED banks 1 is arranged along the edge of intelligent power distribution cabinet's cabinet door 3 and is the rectangle frame form, display module 2 inlays and establishes on intelligent power distribution cabinet's cabinet door 3, whether take place unusually through setting up LED banks 1 suggestion, first frequency is usually higher than the second frequency, when the user finds LED lamp on the intelligent power distribution cabinet flashes fast, can learn that adjacent user has appeared the power consumption unusually, be convenient for in time supervise and correct.
As another embodiment, the flashing frequency of the LED lamp group is controlled according to the electricity stealing capacity, and the more additional capacity is distributed by each sub-user in unit time, the faster the flashing frequency of the LED lamp group is, so as to prompt the severity degree of electricity stealing.
As shown in fig. 5, the present invention further provides a control method based on the above system, including the following steps:
s1: the household end equipment collects the output end voltage and current of the electric energy meter and determines the electricity consumption of the user;
s2: the customer premises equipment uploads the acquired data to the cluster head equipment;
s3: the cluster head equipment judges whether a power stealing phenomenon exists in a user in a cluster;
s4: if not, returning to the S1 for cycle execution, and if the electricity stealing phenomenon exists, entering the step S5;
s5: giving an electricity stealing prompt;
s6: and (4) sharing the surplus power consumption by the users in the cluster, and returning to the step S1 for circular detection.
As an embodiment, in step S3, the cluster head device calculates the real power consumption of each user according to the current value and the voltage value collected by each user end device in the cluster, and records the real power consumption as PiAnd i is 1 … … N, the cluster head equipment acquires the power utilization parameters on the power transmission main line to obtain the total power utilization P of N users, and the power deviation is calculated
When the electric quantity deviation is larger than the preset threshold value, the phenomenon of electricity stealing is considered to exist, and the method can judge whether the phenomenon of electricity stealing exists or not through single power statistics.
As another embodiment, based on the development maturity of the existing intelligent recognition algorithm, a classification recognizer is constructed by using a BP neural network, power consumption parameters of cluster head nodes and each sub-node are used as input vectors, and through early training and testing, intelligent recognition of different power consumption modes can be realized, specifically, current I and voltage U on a power transmission main line and current I acquired by each user end device are used by cluster head devicesiSum voltage UiAnd as an input feature vector, judging the power transmission state of the current power grid by using a pre-trained BP neural network as a classification recognizer, wherein the result output by the classification recognizer is normal power utilization or existence of electricity stealing.
When the classification recognizer judges that electricity stealing exists, the corresponding alarm prompt signals are broadcast to the intelligent power distribution cabinets of all users in the cluster through the power line carrier communication module, and alarm prompt information is given through the intelligent power distribution cabinets.
In order to reduce the loss of the power management department, the cluster head equipment distributes the detected electric quantity deviation value delta P to N users in the cluster, and the actual electric quantity and the distributed additional electric quantity are displayed in the intelligent power distribution cabinet corresponding to each user through the display module.
In summary, the invention provides a rural power grid electricity stealing detection system and a control method thereof, the system realizes management and disposal of electricity stealing behaviors by using rural local crowd supervision and a linked responsibility penalty mechanism, effectively saves maintenance cost of an electricity management department, can send out an alarm prompt in time aiming at electricity stealing behaviors, improves timeliness of investigation and correction of electricity stealing behaviors by using mutual supervision and management of neighbor users, and reduces loss of an electricity administration department as much as possible by purchasing electricity stealing amount by a tolerant party even if a tolerance means is adopted aiming at trace electricity stealing behaviors, and can fully utilize local supervision and management to discover and stop electricity stealing phenomena in real time and ensure safe and stable operation of a rural power grid.
Finally, it should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (7)
1. A rural power grid electricity stealing detection system is characterized in that an electric energy information management device is arranged on a wire outlet end of a transformer or a power transmission main line for supplying power to N users to serve as a cluster head node, an intelligent power distribution cabinet is arranged at a user entrance end of each user to serve as a sub-node, each cluster head node and N sub-nodes in a jurisdiction range form a cluster, the cluster head node judges whether electricity stealing occurs in the jurisdiction range or not by collecting power utilization parameters on a power transmission main line and user power utilization parameters of the N sub-nodes in the cluster, when the electricity stealing occurs, the cluster head node sends alarm prompt information to the N sub-nodes in the cluster, additional electric quantity caused by electricity stealing is distributed to the N users in the cluster, and N is a positive integer greater than or equal to 1;
the electric energy information management device as the cluster head node comprises a first processor, a first current detection module, a first voltage detection module, a first storage module, a first power carrier communication module, a first display module and a first power conversion module, wherein the first current detection module, the first voltage detection module, the first storage module, the first power carrier communication module, the first display module and the first power conversion module are connected with the first processor, and the first power conversion module is used for:
the first processor detects electricity utilization parameters on the connected power transmission main line through the first current detection module and/or the first voltage detection module;
the first power carrier communication module is used for realizing the communication between the cluster head node and N corresponding sub-nodes in the cluster;
the first storage module is used for storing running programs and data;
the first display module is used for displaying the system state and the total electricity consumption of the users in the cluster;
the first power supply conversion module is used for realizing power supply conversion and providing a stable direct current working power supply for the electric energy information management equipment;
the intelligent power distribution cabinet as the sub-node comprises a second processor, a second current detection module, a second voltage detection module, a second storage module, a second power carrier communication module, an alarm prompt module, a second display module and a second power supply conversion module, wherein the second current detection module, the second voltage detection module, the second storage module, the second power carrier communication module, the alarm prompt module, the second display module and the second power supply conversion module are connected with the second processor, and the second power supply conversion module comprises:
the second processor detects power utilization information on the connected user service line through the second current detection module and/or the second voltage detection module;
the second power carrier communication module is used for realizing communication with the cluster head node;
the second storage module is used for storing running programs and data;
the second display module is used for displaying the system state, the actual electricity consumption of the current user and the extra apportioned amount caused by electricity stealing of the users in the cluster;
the alarm prompting module is used for realizing the prompting of electricity stealing phenomenon;
the second power supply conversion module is used for realizing power supply conversion and providing a stable direct-current working power supply for each functional module in the intelligent power distribution cabinet;
the alarm prompt module comprises a string of LED lamp banks arranged along the edge of the cabinet door of the intelligent power distribution cabinet, the flashing frequency of the LED lamp banks is controlled according to the electricity stealing electric quantity, and the more the additional electric quantity shared by each sub-user in unit time, the faster the flashing frequency of the LED lamp banks.
2. The rural power grid electricity stealing detection system according to claim 1, wherein the intelligent power distribution cabinet is further provided with an electric control cabinet door lock, and a control module of the electric control cabinet door lock is connected with the processor.
3. The control method of the rural power grid electricity stealing detection system according to claim 1, characterized by comprising the following steps:
s1: the household end equipment collects the output end voltage and current of the electric energy meter and determines the electricity consumption of the user;
s2: the customer premises equipment uploads the acquired data to the cluster head equipment;
s3: the cluster head equipment judges whether a power stealing phenomenon exists in a user in a cluster;
s4: if not, returning to the S1 for cycle execution, and if the electricity stealing phenomenon exists, entering the step S5;
s5: giving an electricity stealing prompt;
s6: and (4) sharing the surplus power consumption by the users in the cluster, and returning to the step S1 for circular detection.
4. The control method of the rural power grid electricity stealing detection system according to claim 3, wherein: in step S3, the cluster head device calculates the real power consumption of each user according to the current value and the voltage value collected by each user end device in the cluster, and records the real power consumption as PiAnd i is 1 … … N, the cluster head equipment acquires the power utilization parameters on the power transmission main line to obtain the total power utilization P of N users, and the power deviation is calculated
When the electric quantity deviation is larger than a preset threshold value, the electric quantity is considered to be stolenA phenomenon.
5. The control method of the rural power grid electricity stealing detection system according to claim 3, wherein: the cluster head equipment transmits the current I and the voltage U on the power transmission main line and the current I collected by each user end equipmentiSum voltage UiAnd as an input feature vector, judging the power transmission state of the current power grid by using a pre-trained BP neural network as a classification recognizer, wherein the result output by the classification recognizer is normal power utilization or existence of electricity stealing.
6. The control method of the rural power grid electricity stealing detection system according to claim 5, wherein: when the classification recognizer judges that electricity stealing exists, the corresponding alarm prompt signals are broadcasted to the intelligent power distribution cabinets of all users in the cluster through the power line carrier communication module, and alarm prompt information is given through the intelligent power distribution cabinets.
7. The control method of the rural power grid electricity stealing detection system according to claim 4, wherein: the cluster head equipment evenly distributes the detected electric quantity deviation value delta P to N users in the cluster, and actual electric quantity and distributed additional electric quantity are displayed in the intelligent power distribution cabinet corresponding to each user through the display module.
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| CN105023042A (en) * | 2015-07-10 | 2015-11-04 | 国家电网公司 | User electricity stealing suspicion analyzing device and method based on big data neural network algorithm |
| CN205015396U (en) * | 2015-09-16 | 2016-02-03 | 成都众山科技有限公司 | Smart electric meter based on spread spectrum communication |
| CN106597086A (en) * | 2016-12-22 | 2017-04-26 | 国网山东省电力公司鄄城县供电公司 | System and method for preventing electricity from being stolen |
| CN107121578A (en) * | 2017-04-21 | 2017-09-01 | 广西电网有限责任公司防城港供电局 | A kind of low-voltage remote electricity anti-theft system |
| CN107942162A (en) * | 2017-11-13 | 2018-04-20 | 广西电网有限责任公司电力科学研究院 | A kind of multiplexing electric abnormality early warning system based on branch line monitoring |
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