CN110879306B - Three-phase user steals electric monitored control system - Google Patents
Three-phase user steals electric monitored control system Download PDFInfo
- Publication number
- CN110879306B CN110879306B CN201911236095.6A CN201911236095A CN110879306B CN 110879306 B CN110879306 B CN 110879306B CN 201911236095 A CN201911236095 A CN 201911236095A CN 110879306 B CN110879306 B CN 110879306B
- Authority
- CN
- China
- Prior art keywords
- electric energy
- signal
- energy concentrator
- difference value
- electricity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a three-phase user electricity stealing monitoring system, which comprises a special transformer acquisition terminal, an electric energy concentrator, a communication unit, a control processing unit, an alarm unit and a signal sending unit, wherein the special transformer acquisition terminal is used for acquiring a power source signal; the electricity stealing monitoring system monitors the electricity consumption and the metering state of a user through the special transformer acquisition terminal and the electric energy concentrator, judges whether the electricity consumption of the user is abnormal according to the current and power conditions, timely informs electricity utilization inspectors to carry out assault inspection, can timely discover and stop electricity stealing behaviors, improves the accuracy of case solving and shortens the case solving time. The invention provides a three-phase user electricity stealing monitoring system which can preliminarily find and position users with abnormal electricity utilization and prevent electricity stealing behaviors.
Description
Technical Field
The invention belongs to the technical field of electricity utilization monitoring, and particularly relates to a three-phase user electricity stealing monitoring system.
Background
Along with the development of various large and medium-sized industrial enterprises in China, the power consumption is also increased rapidly and is driven by benefits, electricity stealing behaviors of large-power customers are more and more serious, and electricity stealing technologies and electricity stealing modes are more and more diversified. The electricity stealing behavior threatens the economic benefits of power enterprises, greatly influences the stable development of the power industry in China and brings great potential safety hazards to the production and life of people. In the face of diversified electricity stealing modes and higher electricity stealing technologies, the power industry has to adopt more advanced electricity stealing prevention scientific and technical measures. At present, the state network company requires that the meters are completely replaced by novel intelligent meters, and although the novel intelligent meters have great help on electricity larceny prevention, the electric power enterprises need scientific and effective advanced monitoring technology to achieve the purpose of electricity larceny prevention.
The invention provides a three-phase user electricity stealing monitoring system, which analyzes layer by layer according to information acquired by signal acquisition equipment at each level, eliminates misjudgment caused by sensor faults by matching with detection CT, can timely find and accurately judge specific abnormal users when electricity utilization abnormity occurs, timely find and further stop electricity stealing behaviors, improve the accuracy of solving a case and shorten the time for solving the case.
Disclosure of Invention
The invention provides a three-phase user electricity stealing monitoring system which can preliminarily find and position users with abnormal electricity utilization and prevent electricity stealing behaviors.
The invention specifically relates to a three-phase user electricity stealing monitoring system which comprises a special transformer acquisition terminal, an electric energy concentrator, a communication unit, a control processing unit, an alarm unit and a signal sending unit, wherein the special transformer acquisition terminal and the electric energy concentrator are respectively connected with the communication unit, and the control processing unit is respectively connected with the communication unit, the alarm unit and the signal sending unit; the electricity stealing monitoring system monitors the electricity consumption and the metering state of a user through the special transformer acquisition terminal and the electric energy concentrator, judges whether the electricity consumption of the user is abnormal according to the current and power conditions, timely informs electricity utilization inspectors to carry out assault inspection, can timely discover and stop electricity stealing behaviors, improves the accuracy of case solving and shortens the case solving time.
The special transformer acquisition terminal is arranged on the high-voltage side of the 10kV line and comprises a voltage transformer, a current transformer and an electric energy meter which are matched; the electric energy concentrator is connected with a plurality of three-phase multifunctional electric energy meters through RS 485.
The electric energy concentrator is installed the second respectively and is detected CT, first detection CT with the side of being qualified for the next round of competitions, three-phase multifunctional electric energy meter incoming line side also is installed and is detected CT.
The communication unit comprises a signal transmitting module and a signal receiving module, the signal transmitting module adopts a laser transmitter to convert an electric signal into an optical signal and transmits the optical signal to the signal receiving module through an optical fiber, and the signal receiving module adopts an optical receiver to convert an input optical signal into an electric signal through a photodiode and output the electric signal.
The control processing unit adopts a CPU to analyze and judge the acquired information, and comprises the following steps:
step 1: calculating the sum of active power collected by the electric energy concentrator;
step 2: calculating the difference value of the total active power collected by the electric energy concentrator and the active power collected by the special transformer collecting terminal;
and step 3: whether the difference value between the sum of the active power signals of the electric energy concentrator and the active power of the special transformer acquisition terminal is larger than a power difference value reference value or not is judged, if yes, the step 4 is carried out; if not, returning to the step 1;
and 4, step 4: collecting a first detection CT signal of the electric energy concentrator;
and 5: calculating a current difference value between the current signal acquired by the electric energy concentrator and the first detection CT signal of the electric energy concentrator;
step 6: judging whether the current difference value is larger than a current difference value reference value, if so, metering CT faults by the electric energy concentrator, and entering a step 7; if not, entering step 11;
and 7: calculating the active power of the electric energy concentrator according to the first detection CT signal of the electric energy concentrator;
and 8: recalculating the total active power of the electric energy concentrator according to the active power of the electric energy concentrator calculated in the step 7;
and step 9: calculating the difference value between the total active power of the electric energy concentrator obtained in the step 8 and the active power collected by the special transformer collecting terminal;
step 10: judging whether the power difference value in the step 9 is larger than a power difference value reference value, if so, entering a step 11; if not, returning to the step 1;
step 11: collecting a second detection CT signal of the electric energy concentrator;
step 12: calculating a difference value between the first detection CT signal of the electric energy concentrator and the second detection CT signal of the electric energy concentrator;
step 13: finding the electric energy concentrator corresponding to the difference value between the first detection CT signal of the electric energy concentrator and the second detection CT signal of the electric energy concentrator, which is greater than the CT difference value reference value, namely the three-phase line with abnormal electricity utilization;
step 14: collecting current signals of the three-phase multifunctional electric energy meter and CT (computed tomography) signals detected by the three-phase multifunctional electric energy meter;
step 15: calculating the difference value between the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter;
step 16: and finding out the three-phase multifunctional electric energy meter corresponding to the difference value of the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter being larger than the reference value of the current difference value of the user, namely the electricity user with abnormal electricity utilization.
The control processing unit also comprises a memory, a display and a key input module.
The alarm unit adopts a sound-light alarm, and when the electricity stealing monitoring system detects abnormal electricity utilization, the sound-light alarm is timely sent out.
And the signal sending unit sends the detection information of the electricity stealing monitoring system to related workers by adopting a CDMA mobile communication technology.
Compared with the prior art, the beneficial effects are: the electricity stealing monitoring system judges an abnormal circuit according to the collected active power, determines whether the sensor is abnormal or the electricity consumption of the user is abnormal according to the detection CT, can timely find and accurately judge specific abnormal users when the electricity consumption is abnormal, timely find and further stop electricity stealing behaviors, improve the accuracy of case solving and shorten the case solving time.
Drawings
Fig. 1 is a schematic structural diagram of a three-phase user electricity stealing monitoring system according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of a three-phase user electricity stealing monitoring system according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the electricity stealing monitoring system of the invention comprises a special transformer acquisition terminal, an electric energy concentrator, a communication unit, a control processing unit, an alarm unit and a signal sending unit, wherein the special transformer acquisition terminal and the electric energy concentrator are respectively connected with the communication unit, and the control processing unit is respectively connected with the communication unit, the alarm unit and the signal sending unit.
The special transformer acquisition terminal is arranged on the high-voltage side of the 10kV line and comprises a voltage transformer, a current transformer and an electric energy meter which are matched; the electric energy concentrator is connected with a plurality of three-phase multifunctional electric energy meters through RS485, collects three-phase voltage, current, active power, reactive power, forward active maximum demand, forward electric energy metering information and reverse electric energy metering information, and completes data management, storage, parameter setting, inquiry and event recording work.
The wire inlet side and the wire outlet side of the electric energy concentrator are respectively provided with a second detection CT and a first detection CT, and the wire inlet side of the three-phase multifunctional electric energy meter is also provided with a detection CT.
The three-phase multifunctional electric energy metering adopts an intelligent electric energy meter.
The communication unit comprises a signal transmitting module and a signal receiving module, the signal transmitting module adopts a laser transmitter to convert an electric signal into an optical signal and transmits the optical signal to the signal receiving module through an optical fiber, and the signal receiving module adopts an optical receiver to convert an input optical signal into an electric signal through a photodiode and output the electric signal.
The control processing unit adopts a CPU to analyze and judge the acquired information, and comprises the following steps: step 1: calculating the total active power collected by the electric energy concentrator; step 2: calculating the difference value of the sum of the active power collected by the electric energy concentrator and the active power collected by the special transformer collecting terminal; and step 3: whether the difference value between the sum of the active power signals of the electric energy concentrator and the active power of the special transformer acquisition terminal is larger than the power difference value reference value or not is judged, if yes, the step 4 is carried out; if not, returning to the step 1; and 4, step 4: collecting a first detection CT signal of the electric energy concentrator; and 5: calculating a current difference value between a current signal acquired by the electric energy concentrator and a first detection CT signal of the electric energy concentrator; step 6: judging whether the current difference value is larger than the current difference value reference value, if so, metering CT faults by the electric energy concentrator, and entering a step 7; if not, entering step 11; and 7: calculating the active power of the electric energy concentrator according to the first detection CT signal of the electric energy concentrator; and 8: recalculating the total active power of the electric energy concentrator according to the active power of the electric energy concentrator calculated in the step 7; and step 9: calculating the difference value between the total active power of the electric energy concentrator obtained in the step 8 and the active power collected by the special transformer collecting terminal; step 10: judging whether the power difference value in the step 9 is larger than the power difference value reference value, if so, entering a step 11; if not, returning to the step 1; step 11: collecting a second detection CT signal of the electric energy concentrator; step 12: calculating a difference value of a first detection CT signal of the electric energy concentrator and a second detection CT signal of the electric energy concentrator; step 13: finding out an electric energy concentrator corresponding to the difference value between the first detection CT signal of the electric energy concentrator and the second detection CT signal of the electric energy concentrator, which is greater than the CT difference value reference value, namely the electric energy concentrator is a three-phase line with abnormal electricity utilization; step 14: collecting current signals of a three-phase multifunctional electric energy meter and CT (computed tomography) signals detected by the three-phase multifunctional electric energy meter; step 15: calculating the difference value between the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter; step 16: and finding out the three-phase multifunctional electric energy meter corresponding to the difference value of the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter, which is greater than the reference value of the user current difference value, namely the three-phase multifunctional electric energy meter is the electricity user with abnormal electricity utilization.
The control processing unit also comprises a memory, a display and a key input module. The key input module is combined with the memory and the display to complete the setting of the power difference value reference value, the current difference value reference value, the CT difference value reference value and the user current difference value reference value.
The alarm unit adopts an audible and visual alarm, and the signal sending unit adopts a CDMA mobile communication technology to send the detection information of the electricity stealing monitoring system to electricity utilization inspectors.
When the control processing unit judges that the electricity utilization of a certain user is abnormal, the control alarm unit sends an alarm, the control signal sending unit sends specific information to electricity utilization inspectors, and whether the user steals electricity is further determined.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A three-phase user electricity stealing monitoring system is characterized by comprising a special transformer acquisition terminal, an electric energy concentrator, a communication unit, a control processing unit, an alarm unit and a signal sending unit, wherein the special transformer acquisition terminal and the electric energy concentrator are respectively connected with the communication unit, and the control processing unit is respectively connected with the communication unit, the alarm unit and the signal sending unit; the electricity stealing monitoring system monitors the electricity consumption and the metering state of the user through the special transformer acquisition terminal and the electric energy concentrator, judges whether the electricity consumption of the user is abnormal according to the current and power conditions, and timely informs electricity utilization inspectors to carry out assault inspection, so that electricity stealing behaviors can be timely found and stopped, the accuracy of case solving is improved, and the case solving time is shortened;
the special transformer acquisition terminal is arranged on the high-voltage side of the 10kV line and comprises a voltage transformer, a current transformer and an electric energy meter which are matched; the electric energy concentrator is connected with the plurality of three-phase multifunctional electric energy meters through RS 485;
the wire inlet side and the wire outlet side of the electric energy concentrator are respectively provided with a second detection CT and a first detection CT, and the wire inlet side of the three-phase multifunctional electric energy meter is also provided with a detection CT;
the control processing unit adopts a CPU to analyze and judge the acquired information, and comprises the following steps:
step 1: calculating the sum of active power collected by the electric energy concentrator;
step 2: calculating the difference value of the total active power collected by the electric energy concentrator and the active power collected by the special transformer collecting terminal;
and step 3: whether the difference value between the sum of the active power signals of the electric energy concentrator and the active power of the special transformer acquisition terminal is larger than a power difference value reference value or not is judged, if yes, the step 4 is carried out; if not, returning to the step 1;
and 4, step 4: collecting a first detection CT signal of the electric energy concentrator;
and 5: calculating a current difference value between the current signal acquired by the electric energy concentrator and the first detection CT signal of the electric energy concentrator;
step 6: judging whether the current difference value is larger than a current difference value reference value, if so, metering CT faults by the electric energy concentrator, and entering a step 7; if not, entering step 11;
and 7: calculating the active power of the electric energy concentrator according to the first detection CT signal of the electric energy concentrator;
and 8: recalculating the total active power of the electric energy concentrator according to the active power of the electric energy concentrator calculated in the step 7;
and step 9: calculating the difference value between the total active power of the electric energy concentrator obtained in the step 8 and the active power collected by the special transformer collecting terminal;
step 10: judging whether the power difference value in the step 9 is larger than a power difference value reference value, if so, entering a step 11; if not, returning to the step 1;
step 11: collecting a second detection CT signal of the electric energy concentrator;
step 12: calculating a difference value between the first detection CT signal of the electric energy concentrator and the second detection CT signal of the electric energy concentrator;
step 13: finding the electric energy concentrator corresponding to the difference value between the first detection CT signal of the electric energy concentrator and the second detection CT signal of the electric energy concentrator, which is greater than the CT difference value reference value, namely the three-phase line with abnormal electricity utilization;
step 14: collecting current signals of the three-phase multifunctional electric energy meter and CT (computed tomography) signals detected by the three-phase multifunctional electric energy meter;
step 15: calculating the difference value between the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter;
step 16: and finding out the three-phase multifunctional electric energy meter corresponding to the difference value of the current signal of the three-phase multifunctional electric energy meter and the CT signal detected by the three-phase multifunctional electric energy meter being larger than the reference value of the current difference value of the user, namely the electricity user with abnormal electricity utilization.
2. The system as claimed in claim 1, wherein the communication unit comprises a signal transmitting module and a signal receiving module, the signal transmitting module converts electrical signals into optical signals by using a laser transmitter and transmits the optical signals to the signal receiving module by using an optical fiber, and the signal receiving module converts input optical signals into electrical signals by using an optical receiver and outputs the electrical signals by using a photodiode.
3. The system as claimed in claim 2, wherein the control processing unit further comprises a memory, a display and a key input module.
4. The three-phase user electricity stealing monitoring system according to claim 3, wherein the alarm unit is an audible and visual alarm, and an audible and visual alarm signal is given out in time when the electricity stealing monitoring system detects abnormal electricity utilization.
5. The system as claimed in claim 4, wherein the signal transmitting unit transmits the detection information of the electricity stealing monitoring system to the relevant staff using CDMA mobile communication technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236095.6A CN110879306B (en) | 2019-12-05 | 2019-12-05 | Three-phase user steals electric monitored control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911236095.6A CN110879306B (en) | 2019-12-05 | 2019-12-05 | Three-phase user steals electric monitored control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110879306A CN110879306A (en) | 2020-03-13 |
| CN110879306B true CN110879306B (en) | 2021-12-10 |
Family
ID=69730069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911236095.6A Active CN110879306B (en) | 2019-12-05 | 2019-12-05 | Three-phase user steals electric monitored control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110879306B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236693B (en) * | 2007-02-01 | 2011-08-10 | 上海久隆电力（集团）有限公司 | Intelligent meter reading system |
| CN202903993U (en) * | 2012-10-26 | 2013-04-24 | 郑州瑞能电气有限公司 | Portable on-site calibrator for electric energy collection terminal |
| CN203455946U (en) * | 2013-09-30 | 2014-02-26 | 国家电网公司 | Automatic collection system of power consumption |
| CN203535146U (en) * | 2013-11-07 | 2014-04-09 | 成都赛康信息技术有限责任公司 | Power customer electricity consumption monitoring system |
| CN104269040A (en) * | 2014-10-20 | 2015-01-07 | 国家电网公司 | Power utilization information acquisition and orderly power utilization management system |
| CN104535813A (en) * | 2015-01-29 | 2015-04-22 | 威胜集团有限公司 | Electricity larceny prevention system and electricity larceny judgment method for large specific power transformer electricity user |
| CN109345786A (en) * | 2018-09-13 | 2019-02-15 | 国网上海市电力公司 | A kind of non-resident user power utilization abnormal conditions automatic alarm system of low pressure |
-
2019
- 2019-12-05 CN CN201911236095.6A patent/CN110879306B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110879306A (en) | 2020-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110763886B (en) | Single-phase user electricity stealing judgment and positioning method | |
| CN102411119B (en) | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station | |
| CN109687590B (en) | Grading outage and restoration reporting method and system | |
| CN102088482A (en) | Safe operating and fault remote-positioning system for ring network cabinet | |
| CN110763885B (en) | Single-phase user steals electric monitored control system | |
| CN103336221A (en) | Power cable fault detection system | |
| CN104868845A (en) | Device and method for monitoring data of embedded solar photovoltaic module data | |
| CN102879050A (en) | Water level and temperature online monitoring system for direct current grounding electrode detection well | |
| CN107748283A (en) | A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method | |
| CN104239186A (en) | Intelligent electric meter virus detection method based on load rate of CPU | |
| CN213751165U (en) | Enterprise production state monitoring system based on magnetic induction electricity | |
| CN109980782A (en) | A kind of the wireless monitor detector and system of electric line safe operation | |
| CN110879306B (en) | Three-phase user steals electric monitored control system | |
| CN110736865B (en) | Three-phase user electricity stealing judgment and positioning method | |
| CN105720687A (en) | Electric meter incorrect-installation monitoring system | |
| CN107342627B (en) | On-line equipment monitoring device of power distribution station and use method | |
| CN205581252U (en) | Power system fault indicator | |
| CN108919048A (en) | A kind of voltage ripple of power network positioning system and localization method | |
| CN204442018U (en) | Based on the microgrid inverter supervising device of wireless communications mode | |
| CN112526274A (en) | Power sensing equipment and monitoring method thereof | |
| CN207601174U (en) | A kind of taiwan area acquisition terminal and unit-area management system | |
| CN204086497U (en) | Battery pack intelligent diagnosis system in relay station and microwave station | |
| CN112700113A (en) | Enterprise production state monitoring system based on magnetic induction electricity | |
| CN216016536U (en) | Join in marriage electrical room consumer electric power information detection device | |
| CN203275488U (en) | Electronic instrument transformer based on anti-electricity stealing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |