CN106972628A - Oppose electricity-stealing and line loss analyzing and monitoring system low-voltage platform area - Google Patents

Abstract

The invention discloses an anti-stealing electricity and line loss analysis and monitoring system for a low-voltage station area, which includes a smart meter for measuring user electricity consumption parameters, a concentrator for reading and transmitting electricity consumption parameters, and collecting electricity consumption parameters transmitted by the concentrator The high-speed data acquisition system and the power stealing and line loss screening unit module for analyzing and comparing the collected power consumption parameters, the power stealing and line loss screening unit module includes the smart meter opening record information analysis module, current and voltage analysis module and electric energy Indication analysis module. The present invention utilizes the high-speed data acquisition system of the State Grid NARI system to directly and automatically obtain real-time parameters related to electricity theft, such as the current, voltage, electricity, and cover opening records of the low-voltage households in the station area, and determine the suspected electricity theft according to the data. The inspection is convenient and fast, and there is no need to go to the site for door-to-door inspection, which greatly liberates manpower and material resources, and for the situation of long-distance electricity theft or rapid evacuation of electricity-theft equipment, relevant abnormal information can be obtained remotely and quickly.

Description

Anti-stealing and line loss analysis and monitoring system for low-voltage station area

technical field

The invention relates to an anti-stealing electricity and line loss analysis and monitoring system in a low-voltage station area.

Background technique

With the development and progress of society, electricity has become an indispensable part of our life. At present, in the process of providing power services in the power system, there is often a problem that the power consumption is inconsistent with the actual consumption. The reason is, on the one hand, the loss of the transformer and the line itself, and on the other hand, the illegal power theft. There are many ways to illegally steal electricity, but the basic methods are all aimed at the watt-hour meter. By modifying the watt-hour meter, or even taking the method of damaging the watt-hour meter to achieve the purpose of illegal electricity theft, it is difficult for the power supply department to find out the stealing behavior The existence of it has caused serious economic losses to the country. There is no effective anti-stealing equipment for many station areas and suspected electricity-stealing households where the line loss is high and the distance is difficult to detect theft. In order to improve economic benefits, the power supply company has been taking severe measures against electricity theft. Once discovered, the penalty will be doubled. Due to limited manpower and manual inspection, it is difficult to detect electricity theft in time, resulting in unnecessary economic losses.

Contents of the invention

The purpose of the present invention is to provide an anti-stealing and line loss analysis and monitoring system for low-voltage station area.

In order to achieve the above object, the technical scheme that the present invention takes is as follows:

An anti-stealing power and line loss analysis and monitoring system for low-voltage station areas, including a smart meter for measuring user power consumption parameters, a concentrator for reading and transmitting power consumption parameters, collecting power consumption parameters transmitted by the concentrator and storing them in the terminal , high-speed data acquisition system for control and management, and a power stealing and line loss screening unit module for analyzing and comparing the collected power consumption parameters;

The power stealing and line loss screening unit module includes a smart meter opening record information analysis module, a current and voltage analysis module, and an electric energy indication analysis module.

As a further improvement of the present invention, the smart watch cover opening record information analysis module analyzes and screens the smart watch cover opening record: the smart watch cover opening information collected by the high-speed data acquisition system is analyzed by the smart watch cover opening record information analysis module. If there is no cover opening record, the logical judgment is that there is no abnormality; the smart watch cover opening information collected by the high-speed data acquisition system is analyzed by the smart watch cover opening record information analysis module, and there is a cover opening record, then the logical judgment is that there is an abnormality; the smart watch cover opening record has Abnormal information is transmitted to the high-speed data acquisition system through the local area network for information display and alarm.

As a further improvement of the present invention, the current and voltage analysis module includes a current analysis part for single-phase lines and a voltage analysis part for three-phase lines;

The current parameters of the single-phase line collected by the high-speed data acquisition system are analyzed and screened by the current analysis part: when the ratio of the current parameter of the live line to the current parameter of the neutral line of the single-phase line is between 0.8-1.2, the logical judgment is that there is no abnormality; The live line current parameter of the line is strong and the neutral line current parameter is weak, that is, when the ratio of the live line current parameter to the neutral line current parameter of the single-phase line is less than 0.8 or greater than 1.2, it is logically judged to be abnormal; the abnormal information of the single-phase line current is passed The local area network is transmitted to the high-speed data acquisition system for information display and alarm;

The voltage parameters of the three-phase line collected by the high-speed data acquisition system are analyzed and screened by the voltage analysis part: if the three-phase voltage parameters of the three-phase line are consistent, it is logically determined that there is no abnormality; If the parameter is 0, the logic judges that there is an abnormality; the abnormal information of the three-phase line voltage is transmitted to the high-speed data acquisition system through the local area network for information display and an alarm.

As a further improvement of the present invention, the electric energy indication analysis module compares and screens the electric energy indication of the smart meter with the estimated electric energy value obtained after calculating the current and voltage collected at multiple points on the line: the smart meter collected by the high-speed data acquisition system When the ratio of the indicated electric energy value to the estimated electric energy value is between 0.8-1.2, the logical judgment is that there is no abnormality; when the ratio of the electric energy indication value of the smart meter collected by the high-speed data acquisition system to the estimated electric energy value is less than 0.8 or greater than 1.2, the logical judgment is There is abnormality; the abnormal information of the smart meter electric energy indication value collected by the high-speed data acquisition system is transmitted to the high-speed data acquisition system through the local area network for information display and alarm.

As a further improvement of the present invention, carrier signal or wireless signal is transmitted between the smart meter and the concentrator.

As a further improvement of the present invention, data signal transmission is performed between the concentrator and the high-speed data acquisition system through a SIM card.

As a further improvement of the present invention, signal transmission is performed between the high-speed data acquisition system and the electricity stealing and line loss screening unit module through a local area network.

As a further improvement of the present invention, the high-speed data collection system adopts the ACS500 data collector of the State Grid NARI system.

Compared with prior art, the beneficial effect that the present invention obtains is as follows:

The invention utilizes the high-speed data acquisition system of the State Grid NARI system to directly and automatically obtain on-site real-time parameters related to electricity theft, such as the current, voltage, electricity, and cover opening records of the low-voltage households in the station area from the background, and combine multiple parameters to judge the theft. The analysis and screening accuracy of electricity or line loss is extremely high, and the suspect of electricity theft is determined according to the data. The inspection is convenient and fast, and all-weather real-time monitoring is realized. There is no need to go to the site to check each user door by door, which greatly liberates manpower and material resources, and for the situation of long-distance stealing electricity or rapid evacuation of electricity-stealing equipment, relevant abnormal information can be obtained remotely and quickly.

Description of drawings

Accompanying drawing 1 is the electric parameter transmission schematic diagram of the present invention;

Accompanying drawing 2 is the schematic flow diagram of the analysis and screening process of the electric stealing and line loss screening unit module of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1-2, the anti-stealing and line loss analysis and monitoring system in the low-voltage station area includes a smart meter for measuring user power consumption parameters, a concentrator for reading and transmitting power consumption parameters, and a collection concentrator for transmission. A high-speed data acquisition system for terminal storage, control and management of power consumption parameters and a power stealing and line loss screening unit module for analyzing and comparing the collected power consumption parameters; the power stealing and line loss screening unit module includes a smart meter Cover opening record information analysis module, current and voltage analysis module and electric energy indication analysis module. The concentrator is the central management equipment and control equipment of the remote centralized meter reading system, responsible for regular reading of terminal data, system command transmission, data communication, network management, event recording, data horizontal transmission and other functions. The smart watch cover opening record information analysis module analyzes and screens the smart watch cover opening record: the smart watch cover opening information collected by the high-speed data acquisition system is analyzed by the smart watch cover opening record information analysis module. If there is no cover opening record, then the logical judgment There is no abnormality; the smart watch cover opening information collected by the high-speed data acquisition system is analyzed by the smart watch cover opening record information analysis module. If there is a cover opening record, it is logically judged to be abnormal; the smart watch cover opening record has abnormal information and is transmitted to A high-speed data acquisition system displays information and issues alarms. The current and voltage analysis module includes a current analysis part for the single-phase line and a voltage analysis part for the three-phase line; the current parameters of the single-phase line collected by the high-speed data acquisition system are analyzed and screened by the current analysis part: the live wire of the single-phase line When the ratio of the current parameter to the zero line current parameter is between 0.8-1.2, the logic judges that there is no abnormality; the live line current parameter of the single-phase line is strong and the neutral line current parameter is weak, that is, the live line current parameter of the single-phase line and the neutral line current When the parameter ratio is less than 0.8 or greater than 1.2, it is logically judged to be abnormal; under normal circumstances, when the ratio of the live line current parameter to the neutral line current parameter of a single-phase line is 0.8-1.2, it is a normal line loss, but when the line loss exists for a long time It is also necessary to check the cause of the line loss, and then repair the line to reduce the line loss. The abnormal information of the single-phase line current is transmitted to the high-speed data acquisition system through the local area network for information display and alarm; the three-phase line voltage parameters collected by the high-speed data acquisition system are analyzed and screened by the voltage analysis part: the three-phase voltage of the three-phase line If the parameters are consistent, the logical judgment is that there is no abnormality; if the one-phase voltage parameter or the two-phase voltage parameter in the three-phase line is 0, the logical judgment is that there is an abnormality; the abnormal information of the three-phase line voltage is transmitted to the high-speed data acquisition system through the local area network Display information and issue alarms. The electric energy indication analysis module compares and screens the electric energy indication of the smart meter with the estimated electric energy value obtained after calculating the current and voltage collected at multiple points on the line: the calculation method of the estimated electric energy value is a well-known calculation formula, that is, current multiplied by The obtained value of the voltage is the energy value. When the ratio of the smart meter electric energy indication value collected by the high-speed data acquisition system to the estimated electric energy value is between 0.8-1.2, it is logically judged that there is no abnormality; the ratio of the smart meter electric energy indication value collected by the high-speed data acquisition system to the estimated electric energy value is less than 0.8 or When it is greater than 1.2, it is logically judged that there is an abnormality; usually, when the ratio of the electric energy indication value of the smart meter to the estimated electric energy value is between 0.8-1.2, it is caused by normal line loss, but when the line loss exists for a long time, it is necessary to check the line The cause of the loss, and then repair the line to reduce the line loss. The high-speed data acquisition system collects the abnormal information of the smart meter electric energy indication value comparison and transmits it to the high-speed data acquisition system through the local area network for information display and alarm. Especially when two or more alarms are issued for the smart meter opening record information, smart meter electric energy indication value and single-phase line current parameter (or three-phase line voltage parameter) of the user on the same line, it is especially necessary to check for electricity theft.

Carrier signal or wireless signal is transmitted between the smart meter and the concentrator. Data signals are transmitted between the concentrator and the high-speed data acquisition system through a SIM card. Signal transmission is carried out between the high-speed data acquisition system and the electric stealing and line loss screening unit module through a local area network. The high-speed data collection system adopts the ACS500 data collector of State Grid NARI System.

The implementation manners described above are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (8)

1. a kind of low-voltage platform area is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：It includes measurement user power utilization ginseng Power consumption parameter that several intelligent meter, the concentrator for reading and transmitting power consumption parameter, collection concentrator transmission come simultaneously carries out terminal storage The stealing and line loss that the high-speed data acquistion system depositing, control and manage and power consumption parameter to collection are analysed and compared are sieved Menu element module；

The stealing and line loss screening unit module are uncapped record information analysis module, Current Voltage analysis module including intelligent meter And electric energy indicating value analysis module.

2. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The intelligence Can table uncap record information analysis module to intelligent meter uncap record carry out analysis screening：The intelligence of high-speed data acquistion system collection Can table information of uncapping do not uncapped record through intelligent meter record information analysis module analysis of uncapping, then logic judgment is without exception； The intelligent meter of high-speed data acquistion system collection information of uncapping is uncapped note through intelligent meter record information analysis module analysis of uncapping Record, then logic judgment is to have exception；Intelligent meter, which uncaps to record, has abnormal information to pass through local network transport to high-speed data acquisition System carries out presentation of information and sends alarm.

3. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The electricity Flowing voltage analysis module includes the amperometry part to phase line and the voltage analysis part to triple line；

The phase line current parameters of high-speed data acquistion system collection carry out analysis screening by amperometry part：The fire of phase line When line current parameter and neutral line current aspect ratio is between 0.8-1.2, then logic judgment is without exception；The live wire electricity of phase line Stream parameter is strong and neutral line current parameter is weak, i.e., the live wire current parameters of phase line are less than 0.8 or big with neutral line current aspect ratio When 1.2, then logic judgment is to have exception；Single-phase line current has abnormal information to pass through local network transport to high-speed data acquisition System carries out presentation of information and sends alarm；

The three-phase line voltage parameter of high-speed data acquistion system collection carries out analysis screening by voltage analysis part：The three of triple line Phase voltage parameter is consistent, then logic judgment is without exception；A phase voltage parameter or two-phase voltage parameter in triple line are 0, then Logic judgment is to have exception；Three-phase line voltage has abnormal information to be believed by local network transport to high-speed data acquistion system Breath shows and sends alarm.

4. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The electricity The estimation electricity of gained after energy indicating value analysis module is calculated the Current Voltage of intelligent meter electric energy indicating value and multipoint acquisition on the line Screening is compared in energy value：The intelligent meter electric energy indicating value of high-speed data acquistion system collection is 0.8- with estimation energy value ratio When between 1.2, then logic judgment is without exception；The intelligent meter electric energy indicating value of high-speed data acquistion system collection and estimation energy value When ratio is less than 0.8 or more than 1.2, then logic judgment is to have exception；The intelligent meter electric energy of high-speed data acquistion system collection shows Value, which is compared, to be had abnormal information to carry out presentation of information by local network transport to high-speed data acquistion system and sends alarm.

5. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The intelligence Can be carrier signal or transmission of wireless signals between table and concentrator.

6. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The collection Data signal transmission is carried out by SIM card between middle device and high-speed data acquistion system.

7. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The height Signal transmission is carried out by LAN between fast data collecting system and stealing and line loss screening unit module.

8. low-voltage platform area according to claim 1 is opposed electricity-stealing and line loss analyzing and monitoring system, it is characterised in that：The height Fast data collecting system nets the ACS500 data acquisition units of southern auspicious system using state.