CN104656050B - Manpower-saving remote monitoring and diagnosing method for electric energy metering device - Google Patents

Abstract

The invention provides a manpower-saving remote monitoring and diagnosing method for an electric energy metering device. The monitoring and diagnosing system used in the method includes a power consumption information collection system, a communication server, a data collection and analysis server, a database server, a business information server, a Web server, and a workstation computer and data bus; the power consumption information collection system transmits data through the communication server and the data collection and analysis server; the data collection and analysis server, database server, business information server, Web server and workstation computer are electrically connected through the data bus signal. The monitoring and diagnosis methods mainly include data collection, data call, analysis and processing, fault alarm and output of power information that needs to be replenished. The invention improves the timeliness of finding and processing the faults of the electric energy metering device, is beneficial to improving the electric energy metering monitoring and management level of the power supply unit, reducing disputes over electric quantity replenishment, saving a lot of manpower and material resources, improving work efficiency, reducing loss and increasing efficiency.

Description

A Manpower-Saving Remote Monitoring and Diagnosis Method of Electric Energy Metering Device

The patent application of the present invention is a divisional application of the invention patent application with the application number 201210420980.1, the application date is October 29, 2012, and the title is "electric energy metering device remote monitoring and diagnosis system and its working method".

technical field

The invention relates to the technical field of electric power supply metering and monitoring, in particular to a system for remotely monitoring, analyzing and diagnosing the operating status of an electric energy metering device and a working method thereof.

Background technique

The electric energy metering device at the power user site usually includes a transformer, a secondary circuit and an electric energy meter. Therefore, common electric energy metering device faults include transformer faults, secondary circuit faults and electric energy meter faults accordingly. Transformer faults are generally inter-turn short-circuit of a certain mutual inductor, high-voltage fuse of the transformer, disconnection of the zero line of the transformer, etc.; secondary circuit faults are usually wiring errors, repeated grounding of the current transformer circuit, and secondary line disconnection and secondary line breakage cause shunt, etc.; common failures of electric energy meters include stop and go, inaccurate clock of electric energy meter, backward running of electric energy meter, combination error of counter, memory disorder, damage of a certain phase of electric energy meter and battery overdue, etc. In addition, there are overcurrent caused by the load exceeding the transformer caused by human factors, the upper limit of the electric energy meter, the shunt caused by stealing electricity, the loss of voltage, and the abnormal change of the electric energy indication of the electric energy meter caused by changing the setting of the electric energy meter and the number in the memory. Wait.

Human factors and the failure of most electric energy metering devices will lead to inaccurate metering of electricity consumption, resulting in post-event power reckoning and supplementary work, and even disputes over power reckoning. At present, the means of discovering the abnormal information of the user's electric energy metering device mainly relies on manual on-site verification. The manual on-site verification period is at least 3 months. If the time is too long, it will make it difficult to confirm and recover the error power; on-site verification requires the cooperation of the user. And it is difficult to find out the user's subjective breach of contract or electricity theft on the spot; at the same time, manual on-site verification is labor-intensive. At present, with the construction of smart grid, the promotion of smart meters and the continuous development of technology, real-time collection of data from electric energy metering devices, remote monitoring of users' electric energy metering devices, and real-time diagnosis and processing of abnormal information have become possible. The Chinese patent document with the publication number CN 101162264A and the invention name "Remote Calibration and Monitoring System for Electric Energy Metering Devices" proposes a remote calibration and monitoring system for electric energy metering devices through remote communication, but it does not affect the various types of electric energy metering devices. Faults, artificial theft of electricity, and methods for judging the faults of electric energy metering devices and methods for replenishing electricity are not described in detail.

Contents of the invention

The purpose of the present invention is: to overcome the deficiencies of the prior art, to provide a real-time monitoring of the operating status of the power user's on-site electric energy metering device, and timely alarm for abnormal conditions such as the failure of the electric energy metering device and electricity theft, as well as for the need for supplementary The invention relates to a manpower-saving remote monitoring and diagnosis method of electric energy metering device which provides auxiliary decision-making for electricity supply.

The technical solution of the present invention is: the remote monitoring and diagnosis system of the electric energy metering device adopted in the present invention, and its structural characteristics are: including a power consumption information collection system, a communication server, a data collection and analysis server, a database server, a business information server, and a Web server , a workstation computer and a data bus; the above-mentioned power consumption information collection system is an information collection system for real-time collection of electricity consumption by power users and electrical parameters and event records of power metering devices; the communication server is a communication transfer server The data collection and analysis server is a server with a data collection software system and an analysis and diagnosis software system embedded in it; the database server is a server that stores real-time data and analysis and judgment thresholds of the electric energy metering device; the above-mentioned electric energy metering device stored in the database server The analysis and judgment thresholds include phase failure, voltage loss, current loss, overvoltage, overcurrent, voltage unbalance, current unbalance, ammeter clock abnormality, ammeter programming abnormality, active power combination error exception, reactive power combination error exception, user stop Analysis and judgment thresholds for power consumption, low power factor, abnormal reduction in power consumption, and abnormal increase in power consumption; the business information server is a server that stores power user file information; the above file information includes power user application capacity, suspended usage The rated current and rated voltage parameters of electricity and electric energy metering devices; the Web server is a server with a built-in Web application subsystem; the workstation computer is a PC that is set up in the monitoring center to provide users with an operation interface and display fault alarms and supplementary power quantity information machine;

The above-mentioned power consumption information collection system is wirelessly connected to the communication server; the communication server is electrically connected to the data collection and analysis server; the data collection and analysis server, the database server, the business information server, the Web server and the workstation computer communicate with each other through the data bus electrical connection;

The above-mentioned electricity consumption information collection system includes special transformer terminal, centralized meter reading terminal and RS485 smart energy meter; centralized meter reading terminal, special transformer terminal and RS485 smart electric energy meter are connected by communication; centralized meter reading terminal and special transformer terminal communicate with each other through GPRS network The communication connection of the above-mentioned communication server; the quantity of the above-mentioned special transformer terminal, centralized meter reading terminal and RS485 smart energy meter is set according to actual needs.

A manpower-saving remote monitoring and diagnosing method for an electric energy metering device implemented by the above-mentioned remote monitoring and diagnosing system for an electric energy metering device, comprising the following steps:

① The electricity consumption information collection system collects the operating data of the electric energy meter of the power user in real time and transmits it to the data collection and analysis server through the communication server; the data collection and analysis server transmits the received information to the database server through the data bus through its data collection software system for storage; The above-mentioned operating data of the electric energy meter includes power consumption, voltage, current, active power and time-by-time power, peak/flat/valley active/reactive power and time-by-time power information, power factor, real-time active/reactive power , active energy, clock information, programming event information, and event record information; among them, the voltage and current of the electric energy meter are collected in phases;

②The data collection and analysis server calls the real-time data of the electric energy metering device stored in the database server and the analysis and judgment threshold value and the archive information data stored in the business information server through its analysis and diagnosis software system through the data bus;

The data called by the data collection and analysis server includes real-time voltage and current data and voltage and current thresholds of the electric energy metering device, as well as the rated voltage and rated current data of the electric energy metering device;

③ The data collection and analysis server comprehensively processes and analyzes the real-time data, analysis and judgment thresholds and archive information of the electric energy metering device through its analysis and diagnosis software system, and judges whether each real-time data exceeds its corresponding threshold; if it does not exceed the threshold, Determine whether the electric energy metering device is working normally; if it exceeds the threshold value, first judge whether it is a fault that needs to be calculated for supplementary power: if it is, then automatically calculate the power correction coefficient and calculate the power quantity that needs to be supplemented, and then calculate the power quantity that needs to be supplemented together with the name of the fault and The alarm information is transmitted to the workstation computer via the data bus; if not, the fault name and alarm information are transmitted to the workstation computer via the data bus;

If the voltage of a certain phase of an electric energy metering device is lower than 60% of the rated voltage, and the load current is less than 0.5% of the rated current, and the duration is longer than 1 minute, the data collection and analysis server determines that the electric energy metering device has a phase failure; then judges The open phase fault is a power fault that needs to be supplemented; then it is determined that the phase open fault occurs as a one-phase, two-phase or three-phase fault: if it is judged that only one phase is broken, it will be necessary to make up 1/2 of the electric quantity that was copied. Together with the fault name and alarm information, it is transmitted to the workstation computer; if it is judged to be a two-phase fault, the power quantity that needs to be supplemented is twice the amount of electricity that needs to be copied, together with the fault name and alarm information, and is transmitted to the workstation computer; if it is judged to be a three-phase fault , the output should be manually supplemented according to the actual situation, and the power information together with the fault name and alarm information should be transmitted to the workstation computer;

If the current of a certain phase of an electric energy metering device is greater than 0.5% of the rated current, and the voltage is lower than 78% of the rated voltage, and the duration is longer than 1 minute, the data collection and analysis server determines that the electric energy metering device has a voltage loss fault; then determines that the voltage loss The fault is a power failure that needs to be replenished; then it is determined that the voltage loss fault occurred is a one-phase voltage loss, two-phase voltage loss or three-phase voltage loss fault: if it is judged to be a one-phase voltage loss fault, it will need to be supplemented by 1/ of the power quantity 2. The power quantity, together with the fault name and alarm information, is transmitted to the workstation computer; if it is judged to be a two-phase voltage loss fault, the power quantity that needs to be supplemented and copied twice as much as the power quantity, together with the fault name and alarm information, is transmitted to the workstation computer; if it is judged to be three If there is a phase loss voltage fault, the output should be manually supplemented according to the actual situation, and the power information, together with the fault name and alarm information, should be transmitted to the workstation computer;

If the three-phase voltage of an electric energy metering device is greater than 60% of the rated voltage, any phase or two of the three-phase currents are less than 0.5% of the rated current, and the load current of other phase lines is greater than 5% of the rated current, and the duration is greater than 1 minute , the data collection and analysis server determines that the electric energy metering device has a current loss fault; then determines that the current loss fault is a power failure that needs to be supplemented; then determines that the current loss fault that occurred is a one-phase current loss fault, two-phase current loss fault, or three-phase current loss fault : If it is judged as a one-phase loss fault, transmit 1/2 of the electric quantity that needs to be supplemented and copied to the workstation computer together with the fault name and alarm information; if it is judged to be a two-phase loss fault, it will need to supplement and copy the electric quantity 2 times the power quantity, together with the fault name and alarm information, is transmitted to the workstation computer; if it is judged to be a three-phase loss fault, the output should be manually supplemented according to the actual situation, and the power information, together with the fault name and alarm information, is transmitted to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the real-time voltage data and voltage threshold of the electric energy metering device and the rated voltage data of the electric energy metering device;

In the above step ③, the data collection and analysis server analyzes and processes the real-time voltage data of the electric energy metering device and its corresponding threshold and rated voltage data: if the voltage of a certain phase of a certain electric energy metering device is greater than 120% of the rated voltage, the data collection The analysis server determines that the electric energy metering device has an overvoltage fault, and determines that the overvoltage fault is a non-replenishment electric power fault; the fault name and alarm information are output and transmitted to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the real-time current data and current threshold of the electric energy metering device and the rated current data of the electric energy metering device;

In the above step ③, the data collection and analysis server analyzes and processes the real-time current data of the electric energy metering device and its corresponding threshold and rated current data: if the current of a certain phase of a certain electric energy metering device is greater than 120% of the rated current, the data collection The analysis server determines that the electric energy metering device has an over-current fault, and determines that the over-current fault is a non-replenishment electric power fault; outputs the name of the fault and transmits the alarm information to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the real-time voltage data and voltage threshold of the electric energy metering device and the rated voltage data of the electric energy metering device;

In the above step ③, the data collection and analysis server analyzes and processes the real-time voltage data of the electric energy metering device and its corresponding threshold and rated voltage data: if any phase or two-phase voltage of a certain electric energy metering device If the rated voltage exceeds ±30%, the data collection and analysis server determines that the electric energy metering device has a voltage unbalance fault, and determines that the voltage unbalance fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the real-time current data and current threshold of the electric energy metering device and the rated current data of the electric energy metering device;

In the above step ③, the data collection and analysis server analyzes and processes the real-time current data of the electric energy metering device and its corresponding threshold and rated current data: If the rated current exceeds ±30%, the data collection and analysis server determines that the electric energy metering device has a current unbalance fault, and determines that the current unbalance fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the active energy of the electric energy metering device and the active energy of peak/flat/valley periods and their corresponding analysis and judgment thresholds;

In the above step ③, the data collection and analysis server analyzes and processes the active power of the electric energy metering device, the peak/flat/valley active power of the electric energy metering device and its corresponding thresholds: if the active power of a certain electric energy metering device The error between the amount of electricity and the sum of the active energy in each peak/flat/valley period exceeds 1 kilowatt-hour, and the data collection and analysis server determines that the active energy combination error fault has occurred in the electric energy metering device, and the active energy combination error fault is determined to be a non-replenishment electric energy fault; the output fault The name and alarm information are transmitted to the workstation computer.

A further solution is: the data invoked by the data collection and analysis server in ② above includes the reactive power of the electric energy metering device, the reactive power of peak/flat/valley periods and the corresponding analysis and judgment thresholds;

In the above step ③, the data collection and analysis server analyzes and processes the reactive power of the electric energy metering device, the reactive power of the electric energy metering device in each period of peak/flat/valley and its corresponding threshold value: if a certain electric energy metering device The error between the reactive power and the sum of reactive power in each peak/flat/valley period exceeds 1 kvarh, and the data collection and analysis server determines that the reactive power combination error fault occurs in the electric energy metering device, and the reactive power combination error fault is determined to be Non-replenishment power failure; output the name of the failure and send the alarm information to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the power factor of the electric energy metering device and its corresponding analysis and judgment threshold;

In the above step ③, the data collection and analysis server analyzes and processes the power factor of the electric energy metering device and its corresponding analysis and judgment threshold: if the monthly average power factor of any phase or two phases of a certain electric energy metering device is lower than 0.5, The data collection and analysis server determines that the low power factor fault occurs in the electric energy metering device, and determines that the low power factor fault is a non-replenishment power fault; outputs the fault name and alarm information and transmits it to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the power consumption data of the electric energy metering device and the analysis and judgment thresholds for abnormal reduction of power consumption and abnormal increase of power consumption;

In the above step ③, the data collection and analysis server analyzes and processes the power consumption data of the electric energy metering device in this collection cycle, the last power consumption data and the corresponding judgment threshold: if a certain electric energy metering device uses The power consumption has decreased by more than 50% compared with the last time, and the data collection and analysis server determines that the power consumption of the electric energy metering device has decreased abnormally; The collection and analysis server judges that the power consumption of the electric energy metering device has increased abnormally; and judges that the abnormal decrease in power consumption and the abnormal increase in power consumption are non-replenishment power failures; the data collection and analysis server outputs corresponding alarm information and transmits it to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the clock information and the clock threshold of the electric energy metering device, and the clock threshold is also the standard clock value;

In the above step ③, the data collection and analysis server analyzes and processes the clock information and the clock threshold of the electric energy metering device: if the clock error of a certain electric energy metering device is greater than 5 minutes, the data collection and analysis server determines that the electric energy metering device has The clock is abnormally faulty, and it is determined that the clock abnormal fault is a non-replenishment power fault; the fault name and alarm information are output and transmitted to the workstation computer.

A further solution is: the data called by the data collection and analysis server in the above step ② includes the programming event information of the electric energy metering device;

In the above step ③, the data collection and analysis server analyzes and processes the programming event information of the electric energy metering device and its corresponding threshold: if a certain electric energy metering device has been programmed more than once, the data collection and analysis server determines that the electric energy metering The device has a programming abnormal fault, and it is determined that the programming abnormal fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer.

The present invention has positive effects: (1) The remote monitoring and diagnosis system of the electric energy metering device adopted in the present invention can automatically determine phase failure, voltage loss, current loss, overvoltage, and overcurrent by collecting relevant data about the operation of the electric energy metering device of the power user , Unbalanced voltage, unbalanced current, abnormal active combination error, abnormal reactive combination error, low power factor, abnormal decrease in power consumption, abnormal increase in power consumption, abnormal clock of the meter, abnormal programming of the meter, etc. , automatically output the fault name and alarm information, and automatically output the amount of electricity to be replenished for the fault that needs to be calculated and replenished, which greatly improves the timeliness of fault discovery and processing of the electric energy metering device, and improves the management level of electric energy measurement. Significantly reduce disputes over power replenishment, reduce economic losses of power supply companies, and improve economic benefits and management modernization levels of power supply companies. (2) The monitoring and diagnosis method of the present invention replaces the traditional manual on-site fault detection and calibration and manual calculation of power replenishment, which saves a lot of manpower and material resources, reduces labor intensity, improves work efficiency, and is conducive to reducing losses and increasing efficiency.

Description of drawings

Fig. 1 is the schematic structural diagram of the remote monitoring and diagnosis system of the electric energy metering device adopted in the present invention;

Fig. 2 is a schematic structural diagram of the power consumption information collection system in Fig. 1, and also shows its wireless communication connection relationship with the communication server in Fig. 1;

Fig. 3 is a flowchart of the present invention.

The reference signs in the above-mentioned accompanying drawings are as follows:

Electricity consumption information collection system 1 , communication server 2 , data collection and analysis server 3 , database server 4 , business information server 5 , Web server 6 , workstation computer 7 , and data bus 8 .

Detailed ways

(Example 1)

As shown in Fig. 1, the manpower-saving remote monitoring and diagnosis method of electric energy metering device in this embodiment is implemented by adopting the remote monitoring and diagnosis system of electric energy metering device, the system consists of electricity information collection system 1, communication server 2, data collection and analysis server 3, Database server 4, business information server 5, Web server 6, workstation computer 7 and data bus 8 are composed.

The electricity consumption information collection system 1 is set up at the power user site; the communication server 2, the data collection and analysis server 3, the database server 4, the business information server 5, the Web server 6, the workstation computer 7 and the data bus 8 are all set up in the distribution network monitoring center.

The electricity consumption information collection system 1 is wirelessly connected to the communication server 2; the communication server 2 is electrically connected to the data collection and analysis server 3; the data collection and analysis server 3, the database server 4, the business information server 5, the Web server 6 and the workstation computer 7 are electrically connected to each other through a data bus 8 .

As shown in Fig. 2, the power consumption information collection system 1 is an information collection system for real-time collection of electricity consumption of power users and electrical parameters and event records of electric energy metering devices; in this embodiment, the power consumption information collection system 1 is composed of dedicated Composed of variable terminal, centralized meter reading terminal and RS485 smart energy meter; special variable terminal is specially set for large electricity consumers, and centralized meter reading terminal is set for ordinary users; both special variable terminal and centralized meter reading terminal have local communication and remote control through GPRS network Wireless communication function; both the special transformer terminal and the centralized meter reading terminal are respectively connected to the RS485 smart energy meter of the power user; the special transformer terminal and the centralized meter reading terminal are respectively connected through the GPRS network communication server 2; The number of meter terminals and RS485 smart energy meters is set according to actual needs.

The electricity consumption information collection system 1 collects the operation data of electric energy meters of electric users in real time. The operating data of the energy meter collected by it includes power consumption, voltage, current, active power and time-period power, peak/flat/valley active/reactive power in each time period and time-by-time power information, power factor, real-time active/reactive power Power, active energy, clock information, programming event information, and event record information; the electricity consumption information collection system 1 implements phase-separated collection of the voltage and current of the electric energy meter.

The communication server 2 is a communication relay server. The communication server 2 receives the real-time operation data of the power user's electric energy meter sent by the power consumption information collection system 1 through a wireless channel, and transmits it to the data collection and analysis server 3 via an optical cable.

The data collection and analysis server 3 is a server with a specially designed data collection software system and analysis and diagnosis software system embedded in it; the data collection and analysis server 3 collects the power transmitted by the power consumption information collection system 1 via the communication server 2 through the data collection software system The real-time operation data of the electric energy meter of the user and the data are sent to the database server 4 for storage; the data collection and analysis server 3 calls the data stored in the database server 4 and the business information server 5 through its analysis and diagnosis software system to monitor the electric energy metering device and monitor each Diagnose and analyze various faults and abnormal phenomena and make corresponding treatment. When a fault or abnormal phenomenon occurs in the user's electric energy metering device, an alarm message will be sent out, and corresponding auxiliary decisions such as the amount of electricity that should be supplemented are proposed for some faults that need to be replenished.

The database server 4 is a server for storing the real-time data of the electric energy metering device and the analysis and judgment threshold; the analysis and judgment threshold of the electric energy metering device stored in the database server 4 includes phase failure, voltage loss, current loss, overvoltage, overcurrent, Faults such as voltage unbalance, current unbalance, ammeter clock anomaly, ammeter programming anomaly, active power combination error anomaly, reactive power combination error anomaly, user stop power consumption, power factor is too low, power consumption decreases abnormally, power consumption increases abnormally, etc. Or the corresponding analysis and judgment threshold of abnormal phenomena; the database server 4 receives and stores the real-time operation data of the electric energy meter of the power user transmitted by the data collection and analysis server 3 through the data bus 8, and accepts the data call of the data collection and analysis server 3.

The business information server 5 is a server for storing file information of power users; the file information stored therein includes technical parameters such as power user application capacity information, user suspension of power consumption information, and rated current and rated voltage of electric energy metering devices; The information server 5 accepts data calls from the data collection and analysis server 3 through the data bus 8 .

The Web server 6 is a built-in server. The application publishing part of the Web application subsystem is a B/S structure. The development platform uses enterprise module J2EE development tools, developed using JAVA language, using various mainstream framework technologies such as Struts2 and Spring to improve and optimize system performance, and the page display layer adopts AJAX Technology, through the asynchronous mode, optimizes the transmission between the browser and the server, reduces unnecessary data round trips, and reduces bandwidth usage. The Web application subsystem has functions such as basic application, advanced application, operation management, statistical query, and system management. The web application system supports the automatic operation of the system, and enables the staff of the distribution network monitoring center to conveniently operate and use the remote monitoring and diagnosis system of the electric energy metering device of this embodiment through the workstation computer 7 .

The workstation computer 7 is a common PC. The workstation computer 7 provides an operation platform for the staff of the distribution network monitoring center. Moreover, the workstation computer 7 can also receive and display the fault and alarm information transmitted by the data collection and analysis server 3 in real time through the data bus 8, so that the staff can monitor the operation status of the distribution network in real time. The number of workstation computers 7 can be set according to needs, and can be easily connected to the system through the data bus 8 .

The data bus 8 is used to connect the data collection and analysis server 3, the database server 4, the business information server 5, the Web server 6 and the workstation computer 7 to each other.

Referring to FIG. 3 , the manpower-saving remote monitoring and diagnosis method of an electric energy metering device in this embodiment mainly includes the following steps:

① The electricity consumption information collection system 1 collects the operating data of the electric energy meter of the power user in real time and transmits it to the data collection and analysis server 3 through the communication server 2; the data collection and analysis server 3 transmits the received information through the data bus 8 through its data collection software system Store to the database server 4; the operation data of the electric energy meter includes power consumption, voltage, current, active power and sub-period power, active/reactive power in each period of peak/flat/valley and sub-period power information, power factor , Real-time active/reactive power, active energy, clock information, programming event information, event record information; among them, the voltage and current of the electric energy meter are collected in phases;

②The data collection and analysis server 3 calls the real-time data of the electric energy metering device stored in the database server 4 and the analysis and judgment threshold value and the file information data stored in the business information server 5 through its analysis and diagnosis software system via the data bus 8;

③The data collection and analysis server 3 comprehensively processes and analyzes the real-time data, analysis and judgment thresholds and file information of the electric energy metering device through its analysis and diagnosis software system, and judges whether each real-time data exceeds its corresponding threshold; if it does not exceed the threshold , to determine that the electric energy metering device is working normally; if it exceeds the threshold, first judge whether it is a fault that needs to be calculated for supplementary power: if it is, then automatically calculate the power correction coefficient and calculate the power quantity that needs to be supplemented, and then calculate the power quantity that needs to be supplemented together with the name of the fault and alarm information are transmitted to the workstation computer 7 via the data bus 8; if not, the fault name and alarm information are transmitted to the workstation computer 7 via the data bus 8.

The data collection and analysis server 3 performs real-time monitoring and diagnosis of the electric energy metering device of the power user according to the aforementioned steps ② and ③, and automatically performs corresponding processing on various faults and abnormal phenomena:

The data that the data collection and analysis server 3 invokes according to the aforementioned step ② includes real-time voltage and current data and voltage and current thresholds of the electric energy metering device, as well as rated voltage and rated current data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time voltage and current data of the electric energy metering device and its corresponding threshold value, rated voltage and rated current data according to the aforementioned step ③: if the voltage of a certain phase of a certain electric energy metering device is lower than 60 % of the rated voltage, while the load current is less than 0.5% of the rated current, and the duration is longer than 1 minute, the data collection and analysis server 3 determines that the electric energy metering device has a phase failure; The open-phase fault is a one-phase, two-phase or three-phase fault: if it is determined that only one phase is broken, 1/2 of the electric quantity that needs to be supplemented and copied will be transmitted to the workstation computer 7 together with the fault name and alarm information; If it is judged to be a two-phase fault, the electric quantity that needs to be replenished twice as much as the electric quantity that needs to be copied is transmitted to the workstation computer 7 together with the name of the fault and the alarm information; if it is judged to be a three-phase complete fault, the output should be supplemented manually according to the actual situation The power information is transmitted to the workstation computer 7 together with the fault name and alarm information.

The data that the data collection and analysis server 3 invokes according to the aforementioned step ② includes real-time voltage and current data and voltage and current thresholds of the electric energy metering device, as well as rated voltage and rated current data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time voltage and current data of the electric energy metering device and its corresponding threshold value, rated voltage and rated current data according to the aforementioned step ③: if the current of a certain phase of a certain electric energy metering device is greater than 0.5% If the rated current and voltage are lower than 78% of the rated voltage and the duration is longer than 1 minute, the data collection and analysis server 3 determines that a voltage loss fault has occurred in the electric energy metering device; The voltage fault is one-phase voltage loss, two-phase voltage loss or three-phase voltage loss fault: if it is judged to be a one-phase voltage loss fault, 1/2 of the electric quantity that needs to be supplemented and copied will be transmitted to the workstation together with the fault name and alarm information Computer 7; if it is judged to be a two-phase loss of voltage fault, it will transmit the double power amount of the electric quantity to be supplemented and copied together with the name of the fault and the alarm information to the workstation computer 7; if it is judged to be a three-phase loss of voltage fault, the output should be manually According to the actual situation, the supplementary power information is transmitted to the workstation computer 7 together with the fault name and alarm information.

The data that the data collection and analysis server 3 invokes according to the aforementioned step ② includes real-time voltage and current data and voltage and current thresholds of the electric energy metering device, as well as rated voltage and rated current data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the voltage and current real-time data of the electric energy metering device and its corresponding threshold value as well as the rated voltage and rated current data of the electric energy metering device according to the aforementioned step ③: if a certain electric energy metering device's three-phase If the voltage is greater than 60% of the rated voltage, any one or two phases of the three-phase current is less than 0.5% of the rated current, and the load current of other phase lines is greater than 5% of the rated current, and the duration is greater than 1 minute, the data collection and analysis server 3 determines that the The electric energy metering device has a current loss fault; then it is determined that the current loss fault is a power failure that needs to be replenished; then it is determined that the current loss fault is one-phase loss, two-phase loss or three-phase loss: if it is determined that it is one-phase loss If there is a fault, transmit 1/2 of the electric quantity that needs to be supplemented and copied together with the fault name and alarm information to the workstation computer 7; if it is judged to be a two-phase loss fault, the electric quantity that needs to be supplemented twice the electric quantity that has been copied together with the fault The name and alarm information are transmitted to the workstation computer 7; if it is judged to be a three-phase loss fault, the output should be manually supplemented by the actual situation and the power information is transmitted to the workstation computer 7 together with the fault name and alarm information.

The data transferred by the data collection and analysis server 3 according to the aforementioned step ② includes the real-time voltage data and voltage threshold of the electric energy metering device and the rated voltage data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time voltage data of the electric energy metering device and its corresponding threshold and rated voltage data according to the aforementioned step ③: if the voltage of a certain phase of a certain electric energy metering device is greater than 120% of the rated voltage, the data collection The sum analysis server 3 judges that the electric energy metering device has an overvoltage fault, and judges that the overvoltage fault is a non-replenishment electric power fault; the output fault name and alarm information are transmitted to the workstation computer 7 .

The data that the data collection and analysis server 3 invokes according to the aforementioned step ② includes the real-time current data and current threshold value of the electric energy metering device and the rated current data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time current data of the electric energy metering device and its corresponding threshold and rated current data according to the aforementioned step ③: if the current of a certain phase of a certain electric energy metering device is greater than 120% of the rated current, the data collection The sum analysis server 3 judges that the electric energy metering device has an over-current fault, and judges that the over-current fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer 7 .

The data transferred by the data collection and analysis server 3 according to the aforementioned step ② includes the real-time voltage data and voltage threshold of the electric energy metering device and the rated voltage data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time voltage data of the electric energy metering device and its corresponding threshold and rated voltage data according to the aforementioned step ③: if any phase or two-phase voltage of a certain electric energy metering device If the rated voltage exceeds ±30%, the data collection and analysis server 3 determines that the electric energy metering device has a voltage unbalance fault, and determines that the voltage unbalance fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer 7.

The data that the data collection and analysis server 3 invokes according to the aforementioned step ② includes the real-time current data and current threshold value of the electric energy metering device and the rated current data of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the real-time current data of the electric energy metering device and its corresponding threshold value and rated current data according to the aforementioned step ③: if any phase or two-phase current of a certain electric energy metering device If the rated current exceeds ±30%, the data collection and analysis server 3 determines that the electric energy metering device has a current unbalanced fault, and determines that the current unbalanced fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer 7.

The data collected and analyzed by the server 3 according to the aforementioned step ② includes the active energy of the electric energy metering device and the active energy of peak/flat/valley periods and the corresponding analysis and judgment thresholds;

The data collection and analysis server 3 analyzes and processes the active power of the electric energy metering device and the active electric power of the electric energy metering device in each period of peak/flat/valley and its corresponding thresholds according to the aforementioned step ③: if the active power of a certain electric energy metering device The error between the electric quantity and the sum of the active electric quantity during each period of peak/flat/valley exceeds 1 kilowatt-hour, and the data collection and analysis server 3 determines that the active energy combination error fault occurs in the electric energy metering device, and determines that the active energy combination error fault is a non-replenishment electric quantity fault; output The fault name and alarm information are transmitted to the workstation computer 7 .

The data collected and analyzed by the server 3 according to the aforementioned step ② includes the reactive power of the electric energy metering device and the reactive power of the peak/flat/valley periods and the corresponding analysis and judgment thresholds;

The data collection and analysis server 3 analyzes and processes the reactive power of the electric energy metering device and the reactive power of the electric energy metering device in each period of peak/flat/valley and its corresponding thresholds according to the aforementioned step ③: if a certain electric energy metering device The error between the reactive power and the sum of reactive power in each peak/flat/valley period exceeds 1 kvarh, the data collection and analysis server 3 determines that the reactive power combination error fault occurs in the electric energy metering device, and determines that the reactive power combination error fault It is a non-replenishment power failure; the output failure name and alarm information are transmitted to the workstation computer 7.

The data transferred by the data collection and analysis server 3 according to the aforementioned step ② includes the power factor of the electric energy metering device and its corresponding analysis and judgment threshold;

The data collection and analysis server 3 analyzes and processes the power factor of the electric energy metering device and its corresponding analysis and judgment threshold according to the aforementioned step ③: if the monthly average power factor of any phase or two phases of a certain electric energy metering device is lower than 0.5, The data collection and analysis server 3 determines that the low power factor fault occurs in the electric energy metering device, and determines that the low power factor fault is a non-replenishment power fault; outputs the fault name and alarm information and transmits it to the workstation computer 7 .

The data collected and analyzed by the server 3 according to the aforementioned step ② includes the electricity consumption data of the electric energy metering device, the abnormal reduction of electricity consumption, and the analysis and judgment threshold of abnormal increase of electricity consumption;

The data collection and analysis server 3 analyzes and processes the power consumption data in the current collection cycle of the electric energy metering device, the last electric power consumption data and the corresponding judgment threshold according to the aforementioned step ③: if a certain electric energy metering device uses The electricity consumption has decreased by more than 50% compared with the last time, and the data collection and analysis server 3 determines that the electricity consumption of the electric energy metering device has decreased abnormally; The data collection and analysis server 3 determines that the power consumption of the electric energy metering device has increased abnormally; and it is determined that the abnormal decrease in power consumption and the abnormal increase in power consumption are non-replenishment power failures; the data collection and analysis server 3 outputs corresponding alarm information and transmits it to Workstation computer7.

The data transferred by the data collection and analysis server 3 according to the aforementioned step ② includes the clock information and the clock threshold of the electric energy metering device, and the clock threshold is also the standard clock value;

The data collection and analysis server 3 analyzes and processes the clock information and the clock threshold of the electric energy metering device according to the aforementioned step ③: if the clock error of a certain electric energy metering device is greater than 5 minutes, the data collection and analysis server 3 determines that the electric energy metering device An abnormal clock fault occurs, and it is determined that the abnormal clock fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer 7 .

The data called by the data collection and analysis server 3 according to the aforementioned step ② includes the programming event information of the electric energy metering device;

The data collection and analysis server 3 analyzes and processes the programming event information of the electric energy metering device and its corresponding threshold according to the aforementioned step ③: if a certain electric energy metering device has been programmed more than once, the data collection and analysis server 3 determines that the electric energy The metering device has a programming abnormal fault, and it is determined that the programming abnormal fault is a non-replenishment power fault; the output fault name and alarm information are transmitted to the workstation computer 7 .

The above embodiments are descriptions of specific implementations of the present invention, rather than limitations of the present invention. Those skilled in the relevant technical fields can also make various transformations and changes without departing from the spirit and scope of the present invention. Corresponding equivalent technical solutions, therefore all equivalent technical solutions should fall into the patent protection scope of the present invention.

Claims (1)

1. a kind of labor-saving Watthour meter remote monitoring, diagnosing method, it is characterised in that：Using electric energy metering device Remote Monitoring and Diagnosis System is implemented, and the Watthour meter remote monitoring diagnosis system includes power information acquisition system （1）, the communication server（2）, data collection and analysis server（3）, database server（4）, traffic information services device（5）、 Web server（6）, workstation computer（7）And data/address bus（8）；The power information acquisition system（1）It is that one kind is used for The information acquisition system of the electricity consumption of acquisition power consumer and electric energy metering device electric parameter and logout in real time；Communication Server（2）It is a kind of communication-diversion services device；Data collection and analysis server（3）It is implanted with data collection software system to be interior With the server of analyzing and diagnosing software systems；Database server（4）Sentence for storage electric energy metering device real time data and analysis The server of disconnected threshold value；Described is stored in database server（4）The analytical judgment threshold value of interior electric energy metering device includes Disconnected phase, decompression, defluidization, overvoltage, overcurrent, Voltage unbalance, current imbalance, ammeter clock is abnormal, ammeter programming is abnormal, active Combined error is abnormal, idle combined error is abnormal, user stops electricity consumption, power factor is too low, electricity consumption is reduced and used extremely The analytical judgment threshold value of electricity abnormal growth；Traffic information services device（5）To be stored with the server of power consumer archive information； The archive information includes power consumer application capacity, pause electricity consumption, the rated current of electric energy metering device, rated voltage ginseng Number；Web server（6）For the interior server for being implanted with Web application systems；Workstation computer（7）To be arranged in monitoring center It provides operation interface to the user and shows fault alarm and remedy the PC machine of electricity number information；

The power information acquisition system（1）With the communication server（2）Wireless communication connection；The communication server（2）With data Collect and analyze server（3）Communication electrical connection；Data collection and analysis server（3）, database server（4）, business letter Cease server（5）, Web server（6）And workstation computer（7）Pass through data/address bus（8）Mutual signal electrical connection；It is described Power information acquisition system（1）Including special transformer terminals, centralized automatic meter-reading terminal and RS485 intelligent electric energy meters；Centralized automatic meter-reading terminal, Special transformer terminals are communicated to connect with RS485 intelligent electric energy meters；Centralized automatic meter-reading terminal and special transformer terminals by GPRS network with it is described The communication server（2）Communication connection；The quantity of the special transformer terminals, centralized automatic meter-reading terminal and RS485 intelligent electric energy meters according to Actual needs setting；

Include the following steps：

1. power information acquisition system（1）The operation data of acquisition power consumer electric energy meter is through the communication server in real time（2）Transmission Give data collection and analysis server（3）；Data collection and analysis server（3）It will be received by its data collection software system Information through data/address bus（8）It is transferred to database server（4）Storage；The operation data of the electric energy meter includes electricity consumption Amount, voltage, electric current, active energy and its at times electricity, peak/flat/paddy day part it is active/capacity of idle power and its electricity at times Information, power factor, in real time active/reactive power, active energy, clock information, programmed events information, logout information； Wherein the voltage and current split-phase of electric energy meter is acquired；

2. data collection and analysis server（3）By its analyzing and diagnosing software systems through data/address bus（8）Call database clothes Business device（4）The electric energy metering device real time data and analytical judgment threshold value and traffic information services device of storage（5）The shelves of storage Case information data；

Data collection and analysis server（3）The real time data of the electric energy metering device of calling includes the real-time of electric energy metering device The analytical judgment threshold value of voltage, current data, the electric energy metering device of calling includes voltage, current threshold, the electric energy meter of calling The archive information data for measuring device includes rated voltage and rated current data；

3. data collection and analysis server（3）By its analyzing and diagnosing software systems to the real time data of electric energy metering device, It analyzes and determines that threshold value and archive information carry out integrated treatment analysis, judges whether each real time data is more than its corresponding threshold value； If being less than threshold value, judgement electric energy metering device is working properly；If being more than threshold value, first determine whether to need to calculate to remedy electricity Failure：If so, calculating electricity more positive coefficient automatically and after calculating the electricity number that need to be remedied, by the electricity number that need to be remedied together with Failure title and warning message are through data/address bus（8）It is transferred to workstation computer（7）；If it is not, then by failure title and alarm Information is through data/address bus（8）It is transferred to workstation computer（7）；

If certain phase voltage of a certain electric energy metering device is less than 60% rated voltage, while load current is less than 0.5% rated current, And the duration is more than 1 minute, data collection and analysis server（3）Judge that open phase fault occurs for the electric energy metering device；So Open phase fault is judged afterwards for that need to remedy electricity failure；Subsequently determine that the open phase fault of generation is a disconnected phase, two-phase or three-phase fault： Such as it is determined as an only disconnected phase fault, will need to remedies and copy the 1/2 electricity number for seeing electricity number together with failure title and warning message transmission To workstation computer（7）；Such as it is determined as disconnected phase to phase fault, will need to remedies and copy 2 times of electricity numbers for seeing electricity number together with failure name Claim and warning message is transferred to workstation computer（7）；Such as it is determined as three-phase disconnected failure entirely, then output should be by manually pressing practical feelings Condition remedies information about power and is transferred to workstation computer together with failure title and warning message（7）；

If certain phase current of a certain electric energy metering device be more than 0.5% rated current, voltage be less than 78% rated voltage, and continue when Between be more than 1 minute, data collection and analysis server（3）Judge that no-voltage fault occurs for the electric energy metering device；Then judgement is lost Pressure failure is that need to remedy electricity failure；Subsequently determine that the no-voltage fault of generation is a phase decompression, two-phase decompression or three-phase pressure loss event Barrier：Such as it is determined as a phase no-voltage fault, will need to remedies and copy the 1/2 electricity number for seeing electricity number together with failure title and warning message biography It is defeated by workstation computer（7）；Such as it is determined as two-phase no-voltage fault, will need to remedies and copy 2 times of electricity numbers for seeing electricity number together with event Barrier title and warning message are transferred to workstation computer（7）；Such as it is determined as three-phase pressure loss failure, then output should be real by manually pressing Border situation remedies information about power and is transferred to workstation computer together with failure title and warning message（7）；

It is less than if the three-phase voltage of a certain electric energy metering device is all higher than any phase or two-phase in 60% rated voltage, three-phase current 0.5% rated current and other phase line load currents are more than 5% rated current, and the duration is more than 1 minute, data collection and point Analysis server judges that defluidization failure occurs for the electric energy metering device；Then defluidization failure is judged for electricity failure need to be remedied；Then The defluidization failure that judgement occurs is a phase defluidization, two-phase defluidization or three-phase defluidization failure：Such as it is determined as a phase defluidization failure, it need to It remedies and copies the 1/2 electricity number for seeing electricity number and be transferred to workstation computer together with failure title and warning message；Such as it is determined as two Phase defluidization failure will need to remedy and copy 2 times of electricity numbers for seeing electricity number and be transferred to work station meter together with failure title and warning message Calculation machine；Such as be determined as three-phase defluidization failure, then output should by manually by actual conditions remedy information about power together with failure title and Warning message is transferred to workstation computer.