CN105938153A - System for monitoring abnormal state of CT secondary loop and electricity stealing prevention method - Google Patents

Abstract

The invention relates to a system for monitoring an abnormal state of a CT secondary loop and an electricity stealing prevention method. A main station uses a monitoring terminal to determine whether a CT secondary loop is abnormal; a management parameter and a threshold parameter of the monitoring terminal are configured reasonably; the abnormal state of the CT secondary loop is collected; and an integrated analysis is carried out by combining other data of an electricity usage information collection system. Therefore, the power supply service quality of the distribution system can be improved effectively; a system fault point can be localized; and illegal electricity usage behavior of a user can be prevented.

Description

monitor CT System and anti-stealing method for abnormal state of secondary circuit

technical field

The invention relates to the field of electric power for monitoring the abnormal state of a CT secondary circuit, in particular to a system for monitoring the abnormal state of a CT secondary circuit and a method for preventing electricity theft.

Background technique

Current transformer (CT) is an important part of the power grid protection, regulation, measurement and monitoring system, and plays a vital role in the safe and stable operation of the power system. For a long time, some power users have used various methods to ignore or under-meter electricity to achieve the purpose of not paying or paying less electricity bills, and illegally profited by stealing electric energy, resulting in a large loss of national electric energy and seriously damaging the legitimate rights and interests of electric power companies. It not only affects the development of electric power enterprises, but also brings safety hazards to users' electricity consumption. Therefore, it is necessary to monitor whether the CT secondary circuit is abnormal.

At present, the main method of stealing electricity is to achieve the purpose of stealing electricity by short-circuiting or shunting the current circuit of the CT secondary side. Since the fault point of the system cannot be accurately located, it is difficult for the power company to effectively monitor users with abnormal electricity consumption, so it cannot truly Prevent users from using electricity in violation of regulations.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that users with abnormal electricity consumption cannot be effectively monitored, so as to provide a monitoring CT that can accurately locate the fault point of the system and prevent users from using electricity in violation of regulations. A system for abnormal state of a secondary circuit and an anti-stealing method.

In order to solve the above-mentioned technical problems, a system for monitoring the abnormal state of the CT secondary circuit of the present invention includes a master station, and the master station judges whether the CT secondary circuit is abnormal through a monitoring terminal. It is characterized in that the master station It is equipped with: a parameter configuration module, which is used to configure the management parameters and threshold parameters of the monitoring terminal, wherein the threshold parameters are used to judge the state of the CT secondary circuit, and the management parameters are used to monitor the The position information of the CT secondary circuit; the data collection module is used to generate timing tasks according to the set collection plan, and automatically collects the data of the monitoring terminal; the comprehensive analysis module is used to compare the collected data with the threshold parameters A comprehensive analysis is carried out to determine whether there is an abnormality in the CT secondary circuit; the abnormality handling module is used to alarm or track and monitor the CT secondary circuit in an abnormal state.

In an embodiment of the present invention, the threshold parameter in the master station is correspondingly the same as the threshold parameter in the monitoring terminal.

In one embodiment of the present invention, the monitoring terminal monitors the state of the CT secondary circuit, including: CT secondary circuit normal state, CT secondary circuit short circuit state, CT secondary circuit open state, CT secondary saturation state, the semiconductor state of the electric energy meter loop connected in series, and the short circuit state of the electric energy meter current loop.

In one embodiment of the present invention, the data collected from the monitoring terminal includes the current data of the monitored circuit and the current data of the electric energy meter of the monitored circuit, and each collected data is not less than 96 per day.

The present invention also provides an anti-stealing method for monitoring the abnormal state of the CT secondary circuit. The main station judges whether the CT secondary circuit is abnormal through the monitoring terminal. The steps are as follows: Step S1: use the main station to monitor the monitoring terminal Configure the management parameters and threshold parameters, judge the state of the CT secondary circuit through the threshold parameters, and monitor the position information of the CT secondary circuit through the management parameters; step S2: according to the master station setting The collection plan generates a timing task, automatically collects the data of the monitoring terminal; step S3: compares the collected data with the threshold parameter and conducts a comprehensive analysis to determine whether there is an abnormality in the CT secondary circuit, if not Abnormal, return to step S2, if there is an abnormality, enter step S4; step S4: alarm the CT secondary circuit in the abnormal state; or track and monitor the CT secondary circuit in the abnormal state, and then through the comprehensive Analysis to further determine whether the user has abnormal power consumption.

In one embodiment of the present invention, the master station sends the threshold parameter to the monitoring terminal, or requests the monitoring terminal to send the configured threshold parameter to the master station, and after confirmation, the master station to store.

In one embodiment of the present invention, the management parameters and threshold parameters are stored in the master station to form a parameter configuration template, which can be directly called or modified after importing, and multiple monitoring terminals with the same parameters Perform parameter configuration.

In one embodiment of the present invention, the parameter configuration module remotely upgrades and updates the operating program of the monitoring terminal.

In one embodiment of the present invention, in the step S3, when comparing the collected data with the threshold parameters and performing a comprehensive analysis, it is monitored in real time whether there is any abnormality in the monitored circuit according to the collected status data, and the The above-mentioned CT secondary circuits are sorted out, and the abnormal states belonging to the same monitored circuit are unified for algorithm analysis.

In one embodiment of the present invention, in the step S4, when tracking and monitoring the CT secondary circuit in an abnormal state, by increasing the monitoring density of the suspicious circuit and drawing the current load curve of the monitored circuit, the power consumption of the suspicious circuit The situation is continuously tracked.

The above technical solution of the present invention has the following advantages compared with the prior art:

The present invention combines the abnormal state collection and monitoring of the CT secondary circuit, and other data and results collected by the power consumption information collection system to analyze and judge possible abnormal power consumption phenomena, realize faulty circuit positioning and alarm, and detect abnormal power consumption Users monitor electricity consumption to prevent users from using electricity in violation of regulations.

Description of drawings

In order to make the content of the present invention more easily understood, the present invention will be described in further detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

Fig. 1 is a flow chart of the method for monitoring the abnormal state of the CT secondary circuit and preventing electricity theft according to the present invention.

detailed description

Embodiment one:

This embodiment provides a system for monitoring the abnormal state of the CT secondary circuit, including a main station, the main station judges whether the CT secondary circuit is abnormal through the monitoring terminal, and the main station is equipped with: a parameter configuration module, used To configure the management parameters and threshold parameters of the monitoring terminal, wherein the threshold parameters are used to judge the state of the CT secondary circuit, and the management parameters are used to monitor the position information of the CT secondary circuit; data The collection module is used to generate timing tasks according to the set collection scheme, and automatically collects the data of the monitoring terminal; the comprehensive analysis module is used to compare the collected data with the threshold parameters and perform comprehensive analysis to judge the Whether there is any abnormality in the CT secondary circuit; the abnormality handling module is used to alarm or track and monitor the abnormal state of the CT secondary circuit.

The system for monitoring the abnormal state of the CT secondary circuit described in this embodiment includes a master station, and the master station judges whether the CT secondary circuit is abnormal through a monitoring terminal. Specifically, the master station is equipped with: a parameter configuration module , data acquisition module, comprehensive analysis module and exception handling module. Wherein the parameter configuration module is used to configure the management parameters and threshold parameters of the monitoring terminal, the threshold parameters are used to judge the state of the CT secondary circuit, and send data exceeding the range of the threshold parameters to the The master station reports corresponding records, the management parameters are used to monitor the position information of the CT secondary circuit, and the position information of the CT secondary circuit is monitored through the management parameters to accurately locate the position of the CT secondary circuit , so as to accurately report the abnormal state of the CT secondary circuit to the main station; the data acquisition module is used to generate a timing task according to the set acquisition scheme, and automatically collect the data of the monitoring terminal, which is beneficial to the The master station obtains relevant information of the CT secondary circuit, and implements data encryption and compression during data transmission, thereby improving data reliability; the comprehensive analysis module is used to compare the collected data with the threshold parameters and Carry out comprehensive analysis, monitor whether there is abnormality in the CT secondary circuit in real time according to the collected status data, and judge possible abnormal phenomena of power consumption, thereby effectively improving the power supply service quality of the distribution network system; the abnormality handling module is used for abnormal status The CT secondary circuit can be used to alarm or track and monitor, so as to prevent users from using electricity in violation of regulations.

In the parameter configuration module, some threshold parameters necessary for the operation of the monitoring terminal are maintained and distributed, and the parameters are stored separately in the master station. When the monitoring terminal is installed and maintained, the threshold parameter in the master station is correspondingly the same as the threshold parameter of the monitoring terminal. Maintain and distribute the position information of the loop monitored by the monitoring terminal, as well as the address number, name, installation location, date, communication protocol and other information of the loop electric energy meter and the special transformer terminal, and automatically report the monitoring terminal to it in the system Bind the electric energy meter corresponding to the electric energy meter address of the electric energy meter, and establish relevant files. The special variable terminal is used for data collection, monitoring and loop control of the secondary loop voltage and current. At present, such terminals do not have loop open circuit, The monitoring function of the abnormal state of the circuit such as short circuit (also has a weaker function), so the "CT secondary circuit monitoring terminal" can be built into the "special transformer terminal" to become an extended function; it can also independently become a "CT secondary circuit monitoring terminal". Loop monitoring terminal", complete the monitoring of the loop together with the "specific transformer terminal".

In the data acquisition module, the monitoring terminal is used to monitor the state of the CT secondary circuit including: CT secondary circuit normal state, CT secondary circuit short circuit state, CT secondary circuit open state, CT secondary saturation ( CT primary short circuit) state, electric energy meter circuit series connection semiconductor state, electric energy meter current circuit short circuit state, etc., each state information is collected in real time and actively reported; the data collected and monitored terminal includes: the monitored circuit current, the monitored circuit electric energy meter Current data, etc., and each collected data is not less than 96 per day. Finally, the collected data is stored.

The comprehensive analysis module is used to compare the collected data with the threshold parameters and conduct a comprehensive analysis to determine whether there is an abnormality in the CT secondary circuit, wherein the collected data also includes the CT secondary circuit Position information, which is conducive to the positioning of abnormal CT secondary circuits. According to the time when the abnormal state is reported, as well as the collected monitored circuit current and electric energy meter data, analyze and judge in combination with other additional data, task data, threshold parameter settings, etc.; shield some false alarm states, and reduce the workload of processing personnel.

The abnormality handling module realizes the alarm and tracking monitoring of the monitored circuit. Set the importance levels, processing rules, and processing methods for various detected loop abnormal events. Define the importance and priority of abnormal events, whether an alarm is required and how to send the alarm, such as: text, sound, SMS, etc.; fault confirmation, recording, and archiving of abnormal events. The recorded content includes abnormal event number, name, type, recorder, abnormal event description, urgency, processing priority, abnormal event processing status, etc.; for suspicious circuits, increase the monitoring density, draw the current load curve of the monitored circuit, and analyze the suspicious circuits. The power consumption situation is continuously tracked; and then the comprehensive analysis module comprehensively analyzes the user's long-term power consumption situation to determine whether the user has abnormal power consumption.

Embodiment two:

As shown in Figure 1, this embodiment provides an anti-stealing method for monitoring the abnormal state of the CT secondary circuit. The master station judges whether the CT secondary circuit is abnormal through the monitoring terminal. The steps are as follows: Step S1: Using the master station Configuring the management parameters and threshold parameters of the monitoring terminal, judging the status of the CT secondary circuit through the threshold parameters, and monitoring the position information of the CT secondary circuit through the management parameters; step S2: according to the The collection plan set by the master station generates a timing task, and automatically collects the data of the monitoring terminal; Step S3: compares the collected data with the threshold parameters and conducts a comprehensive analysis to determine whether the CT secondary circuit exists Abnormal, if there is no abnormality, return to step S2, if there is abnormality, enter step S4; step S4: alarm the CT secondary circuit in abnormal state; or track and monitor the CT secondary circuit in abnormal state, and then through the user's long-term Comprehensive analysis of power consumption to further determine whether users have abnormal power consumption.

According to the anti-stealing method for monitoring the abnormal state of the CT secondary circuit in the present invention, the main station judges whether the CT secondary circuit is abnormal through the monitoring terminal, and the steps are as follows: In the step S1, the monitoring terminal is monitored by the main station The management parameters and threshold parameters are configured, and the status of the CT secondary circuit is judged by the threshold parameters. For the data exceeding the threshold parameter range, the monitoring terminal reports the corresponding status to the master station. Through the The management parameters monitor the position information of the CT secondary circuit, and accurately locate the position of the CT secondary circuit, so as to accurately report the abnormal state of the CT secondary circuit to the main station; in the step S2, Generate a timing task according to the acquisition scheme set by the master station, and automatically collect the data of the monitoring terminal, which is beneficial for the master station to obtain relevant information of the CT secondary circuit; in the step S3, the collected data Comparing with the threshold parameter and performing a comprehensive analysis to determine whether there is an abnormality in the CT secondary circuit, if there is no abnormality, return to step S2, if there is an abnormality, determine the possible abnormal phenomenon of power consumption, and enter step S4, Thereby effectively improving the power supply service quality of the distribution network system; in the step S4, alarming the CT secondary circuit in the abnormal state; or tracking and monitoring the CT secondary circuit in the abnormal state, and then comprehensively analyzing the long-term power consumption of the user , to further judge whether the user has abnormal power consumption, and if there is abnormal power consumption, an alarm will be issued, so as to prevent the user from using electricity in violation of regulations.

In the step S1, the master station sends the threshold parameter to the monitoring terminal, or sends the configured threshold parameter to the master station by requesting the monitoring terminal, and stores it in the master station after confirmation, And the threshold parameter is separately stored in the master station. Specifically, when the monitoring terminal is installed and maintained, the threshold parameter is sent to the monitoring terminal device by the main station, or the configured threshold parameter can be summoned to the main station by requesting terminal parameters, and after confirmation Finally, it is stored in the master station to maintain the consistency of the master station and field terminal parameters. The management parameters and threshold parameters are stored in the master station to form a parameter configuration template, which can be directly invoked or modified after being imported, and configures parameters for multiple monitoring terminals with the same parameters. Specifically, the configured management parameters and threshold parameters can be saved to form a terminal parameter template, and the parameter template can be directly called or imported and modified, which is convenient for parameter configuration of multiple monitoring terminals with the same parameters. At the same time, the parameter configuration module supports remote upgrading and updating of the monitoring terminal operating program.

In the step S3, when the collected data is compared with the threshold parameters and comprehensively analyzed, the monitored circuit is monitored in real time according to the collected status data to see if there is any abnormality, and the CT secondary circuit is sorted out, which belongs to The abnormal state of the same monitored loop is uniformly analyzed by algorithm.

In the step S4, when tracking and monitoring the CT secondary circuit in an abnormal state, by increasing the monitoring density of the suspicious circuit, drawing the current load curve of the monitored circuit, and continuously tracking the power consumption of the suspicious circuit; and then comprehensively analyzing The module comprehensively analyzes the long-term power consumption of the user to determine whether the user has abnormal power consumption.

In summary, the technical solution of the present invention has the following advantages:

1. The system for monitoring the abnormal state of the CT secondary circuit of the present invention includes a master station, and the master station judges whether the CT secondary circuit is abnormal through a monitoring terminal. Specifically, the master station is provided with: parameter configuration module, data acquisition module, comprehensive analysis module and exception handling module. Wherein the parameter configuration module is used to configure the management parameters and threshold parameters of the monitoring terminal, the threshold parameters are used to judge the state of the CT secondary circuit, and send data exceeding the range of the threshold parameters to the The master station reports corresponding records, the management parameters are used to monitor the position information of the CT secondary circuit, and the position information of the CT secondary circuit is monitored through the management parameters to accurately locate the position of the CT secondary circuit , so as to accurately report the abnormal state of the CT secondary circuit to the main station; the data acquisition module is used to generate a timing task according to the set acquisition scheme, and automatically collect the data of the monitoring terminal, which is beneficial to the The master station obtains relevant information of the CT secondary circuit; the comprehensive analysis module is used for comprehensive analysis of the collected data, and monitors in real time whether there is any abnormality in the CT secondary circuit according to the collected status data, and judges possible usage abnormal phenomenon, thereby effectively improving the power supply service quality of the distribution network system; the abnormality handling module is used to alarm or track and monitor the CT secondary circuit in an abnormal state, so as to prevent users from using electricity in violation of regulations.

2. The method for monitoring the abnormal state of the CT secondary circuit of the present invention to prevent electricity theft, the main station judges whether the CT secondary circuit is abnormal through the monitoring terminal, and the steps are as follows: In the step S1, the main station is used to monitor the The management parameters and threshold parameters of the monitoring terminal are configured, and the state of the CT secondary circuit is judged by the threshold parameters, and the monitoring terminal reports corresponding records to the master station for data exceeding the range of the threshold parameters, Monitoring the position information of the CT secondary circuit through the management parameters, accurately locating the position of the CT secondary circuit, so as to accurately report the abnormal state of the CT secondary circuit to the master station; the step S2 In the method, a timed task is generated according to the acquisition scheme set by the master station, and the data of the monitoring terminal is automatically collected, which is beneficial for the master station to obtain relevant information of the CT secondary circuit; in the step S3, the acquisition Comprehensive analysis of the data to determine whether there is an abnormality in the CT secondary circuit. If there is no abnormality, return to step S2. If there is an abnormality, judge the possible abnormal phenomenon of power consumption and enter step S4, so as to effectively improve the power supply of the distribution network system. Quality of service; in the step S4, an alarm is given to the CT secondary circuit in an abnormal state; or the CT secondary circuit in an abnormal state is tracked and monitored, and then through a comprehensive analysis of the user's long-term power consumption situation, it is further judged whether there is an abnormality in the user If there is abnormal power consumption, an alarm will be issued to prevent users from using electricity in violation of regulations.

Apparently, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in various forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. A system for monitoring the abnormal state of the CT secondary loop, comprising a master station, the master station judges whether the CT secondary loop is abnormal by a monitoring terminal, it is characterized in that, the master station is provided with: A parameter configuration module, configured to configure management parameters and threshold parameters of the monitoring terminal, wherein the threshold parameters are used to judge the state of the CT secondary circuit, and the management parameters are used to monitor the CT secondary circuit location information; A data collection module, configured to generate a timing task according to a set collection scheme, and automatically collect the data of the monitoring terminal; A comprehensive analysis module, configured to compare the collected data with the threshold parameters and conduct a comprehensive analysis to determine whether there is any abnormality in the CT secondary circuit; The abnormal handling module is used to alarm or track and monitor the CT secondary circuit in an abnormal state. 2. The system for monitoring abnormal state of CT secondary circuit according to claim 1, characterized in that: the threshold parameter in the master station is correspondingly the same as the threshold parameter in the monitoring terminal. 3. The system for monitoring the abnormal state of the CT secondary circuit according to claim 1, characterized in that: the monitoring terminal monitors the state of the CT secondary circuit, including: CT secondary circuit normal state, CT secondary circuit Short circuit state, CT secondary circuit open circuit state, CT secondary saturation state, electric energy meter circuit series connection semiconductor state, and electric energy meter current circuit short circuit state. 4. The system for monitoring the abnormal state of the CT secondary circuit according to claim 1, characterized in that: the data collected by the monitoring terminal includes the current data of the monitored circuit current and the electric energy meter of the monitored circuit, and each collected data is No less than 96 days. 5. An anti-stealing method for monitoring the abnormal state of the CT secondary circuit, the master station judges whether the CT secondary circuit is abnormal through the monitoring terminal, and the steps are as follows: Step S1: Use the master station to configure the management parameters and threshold parameters of the monitoring terminal, judge the state of the CT secondary circuit through the threshold parameters, and monitor the position information of the CT secondary circuit through the management parameters ; Step S2: Generate a timing task according to the collection plan set by the master station, and automatically collect the data of the monitoring terminal; Step S3: Comparing the collected data with the threshold parameters and performing a comprehensive analysis to determine whether there is an abnormality in the CT secondary circuit, if there is no abnormality, return to step S2, and if there is an abnormality, enter step S4; Step S4: Alarm the abnormal state of the CT secondary circuit; or track and monitor the abnormal state of the CT secondary circuit, and then through the comprehensive analysis of the user's long-term power consumption, further determine whether the user has abnormal power consumption. 6. The anti-stealing method according to claim 5, characterized in that: in the step S1, the master station sends the threshold parameter to the monitoring terminal, or sends the configured threshold parameter by requesting the monitoring terminal to the master station, and store in the master station after confirmation. 7. The anti-stealing method according to claim 6, characterized in that: the management parameters and threshold parameters are stored in the master station to form a parameter configuration template, and the parameter configuration template can be directly called or modified after importing, And perform parameter configuration on multiple monitoring terminals with the same parameters. 8. The anti-stealing method according to claim 7, characterized in that: the parameter configuration module remotely upgrades and updates the operating program of the monitoring terminal. 9. The anti-stealing method according to claim 5, characterized in that: in the step S3, when comparing the collected data with the threshold parameter and performing a comprehensive analysis, real-time monitoring is performed according to the collected state data Whether there is an abnormality in the monitoring circuit, sort out the CT secondary circuit, and perform algorithmic analysis on abnormal states belonging to the same monitored circuit. 10. The anti-stealing method according to claim 5, characterized in that: in the step S4, when tracking and monitoring the CT secondary circuit in an abnormal state, by increasing the monitoring density of the suspicious circuit, the current of the monitored circuit is drawn Load curve, which continuously tracks the power consumption of suspicious circuits.