CN113570076A - Online operation and maintenance management platform for gateway metering device of power plant - Google Patents
Online operation and maintenance management platform for gateway metering device of power plant Download PDFInfo
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Abstract
The invention relates to an online operation and maintenance management platform for a gateway metering device of a power plant with a master dispatching system, which comprises a server terminal; the metering automation system platform and the communication terminal of operation and maintenance personnel establish network connection through the server terminal, and the metering automation system platform can transmit basic information and parameter information of the power plant gateway metering device to the server terminal; the server terminal can analyze, calculate and process basic information and parameter information of the metering device through a built-in function module to obtain main and auxiliary meter electric quantity checking and analyzing data, main and auxiliary metering point-line loss analyzing data, mutual inductor state analyzing data, compensation electric quantity calculating data, mutual inductor balance rate analyzing data, service power consumption rate analyzing data and electric energy indication value error testing data, and the main and auxiliary meter electric quantity checking and analyzing data, the service power consumption rate analyzing data and the electric energy indication value error testing data are used for a metering automation system platform and an operation and maintenance personnel communication terminal to call and use.
Description
Technical Field
The invention relates to the technical field of power management, in particular to an online operation and maintenance management platform for a gateway metering device of a power plant.
Background
A large number of power plants with a uniformly-adjusted network in a power grid system realize power generation network access and power utilization network access through the same power transmission line, and gateway metering points are arranged at property right boundary points. When the power plant is off-grid for power utilization, the power utilization load is small, the power transmission line is long, and the like, the main metering point and the opposite side check metering point accumulate off-grid electric quantity with great difference, the situations of more metering, less metering, meter leakage and even no metering of off-grid electric quantity exist objectively, and the installed electric energy metering device is designed according to the power plant on-grid, the problem of metering misalignment under the condition of small load is more prominent, and the fairness and justice of trade settlement is influenced. The metering device has no abnormality when hundreds of thousands of kWh of electricity are leaked in one year of a power plant, and the metering device is mainly inaccurate in measurement of the off-grid electricity quantity due to objective factors such as distribution capacitance of a power transmission line, design and selection of the metering device and the like, so that similar phenomena are numerous in the system.
In order to excavate loss caused by electric quantity leakage and meter loss of a power plant under a potential unreasonable metering mode and increase benefits, the invention provides an online operation and maintenance management platform of a power plant gateway metering device, which provides reasonable suggestions for setting a new power plant off-grid metering mode and a metering point, and eliminates the phenomena of electric quantity leakage, meter loss and meter error caused by objective factors from the source.
Disclosure of Invention
The invention aims to provide an online operation and maintenance management platform of a power plant gateway metering device, aiming at the conditions that the metering of the existing power plant gateway metering device is inaccurate, the accumulated network electricity quantity of a main metering point and an opposite side check metering point has larger difference, and more, less, missed or even no metering network electricity quantity exists objectively, parameter information of the power plant gateway metering device is obtained from a metering data system for integration, modular design and display are carried out according to functions, abnormal data are prompted, and operation and maintenance personnel can download and automatically generate an online operation and maintenance analysis report of the gateway metering device by taking a power plant as a unit according to months, quarters, half years and years. The early discovery, early warning and early solution of the abnormity of the electric energy meter are realized, and the electric power safety is ensured.
The technical scheme adopted by the invention is as follows:
a kind of on-line operation and maintenance management platform of the gateway metering device of the power plant of the overall dispatching, the hardware of the on-line operation and maintenance management platform of the gateway metering device of the power plant of the overall dispatching includes the server terminal; the metering automation system platform and the communication terminal of operation and maintenance personnel establish network connection through the server terminal, and the metering automation system platform can transmit basic information and parameter information of the power plant gateway metering device to the server terminal; the server terminal can analyze, calculate and process basic information and parameter information of the metering device through a built-in function module to obtain main and auxiliary meter electric quantity checking and analyzing data, main and auxiliary metering point-line loss analyzing data, mutual inductor state analyzing data, compensation electric quantity calculating data, mutual inductor balance rate analyzing data and electric energy indication value error testing data, and the main and auxiliary meter electric quantity checking and analyzing data, the mutual inductor state analyzing data, the compensation electric quantity calculating data, the mutual inductor balance rate analyzing data and the electric energy indication value error testing data are used for a metering automation system platform and an operation and maintenance personnel communication terminal to call and use.
Preferably, the server terminal comprises a computer mainboard, a CPU module, a memory bank, a solid state disk, a router and a power adapter; the server terminal comprises the following built-in functional modules: gateway metering point monitoring-basic data module; the electric quantity checking module of the main meter and the auxiliary meter; a main and auxiliary metering point and line loss analysis module; a transformer balance rate analysis module; electric energy indicating value error test module.
Preferably, the gateway metering point monitoring-basic data module directly calls all data of the metering device database, and screening is carried out through input parameter quantification to obtain a data list meeting the parameter quantification;
wherein the parameters are quantified as: any one of the name of the metering point, the region, the power supply station, the line and the data time in the basic information and the parameter information of the power plant gateway metering device.
Preferably, the gateway metering point monitoring-basic data module can also form an electric quantity fluctuation graph, a three-phase voltage graph and an unbalance rate fluctuation graph by inputting two parameter quantification;
wherein the parameters are quantified as: and measuring the line and the data time in the basic information and the parameter information of the device at the power plant gateway.
Preferably, the main and auxiliary metering point-line loss analysis module screens data in a metering device database according to parameter quantification; then, calculating a main-auxiliary gateway electric quantity comparison monitoring value and a main-auxiliary gateway real-time power comparison monitoring value according to the main gateway electric quantity, the auxiliary gateway electric quantity, the main gateway power and the auxiliary gateway power; finally, drawing a relation curve of time point line loss and settlement electric quantity, gateway electric quantity and measuring point load according to the main-auxiliary gateway electric quantity comparison monitoring value and the main-auxiliary gateway real-time power comparison monitoring value, identifying negative line loss and line loss crossing thresholds, generating a main-auxiliary measuring point line loss alarm list, and establishing a network through a server terminal to send the main-auxiliary measuring point line loss alarm list to an operation and maintenance personnel communication terminal in a short message mode;
wherein the parameters are quantified as: any one of main and auxiliary metering point names, main metering point user names, auxiliary metering point user names and data time in basic information and parameter information of the power plant gateway metering device, and a line loss threshold value.
Preferably, the mutual inductor balance rate analysis module screens data in the metering device database according to the parameter quantification; calculating a voltage unbalance rate and a current unbalance rate according to the voltage of the wiring circuit, the current of the wiring circuit, the three-phase voltage of the bus and the three-phase current of the bus; finally, screening the data of the calculated voltage unbalance rate and current unbalance rate again according to the voltage threshold value or the current threshold value, thereby generating a balance rate analysis list;
wherein the parameters are quantified as: any one item of the name of the metering point, the region, the route and the data time.
Preferably, the electric energy indicating value error test module firstly screens data in a metering device database according to parameter quantification; then according to the screened data, carrying out electronic calculation through the electric energy of the total electric energy counter of the current electronic display, the electric energy of the counter corresponding to each rate time period of the current electronic display, the rate number and the decimal digit of the total electric energy counter of the electronic display; finally, generating an electric energy indicating value error test list;
the parameter quantification is any item of the name of a metering point, the name of a user and data time, and decimal digits.
Preferably, the hardware of the online operation and maintenance management platform of the gateway metering device of the power master-dispatching plant comprises a handheld terminal besides a server terminal, and the handheld terminal is in network connection with the server terminal to realize information transmission; the handheld terminal is composed of a handheld terminal complete set shell, a handheld terminal special core board, a handheld terminal main board, an infrared laser module, a camera module, a two-dimensional scanning module, a power adapter and a data line; the handheld terminal comprises a handheld terminal complete shell, a handheld terminal mainboard and a camera module, wherein the handheld terminal complete shell contains TP, a liquid crystal display screen and auxiliary materials, the liquid crystal display screen is a 5.5-inch high-definition screen, the handheld terminal special core board is a 8-core 1.8GHZ, 2G RAM and 16G ROM core board, the handheld terminal mainboard contains a 4G full-network communication module, a 2.4G/5G WiFi module and a Bluetooth 4.1 module, an infrared laser module is compatible with NFC, HF and RFID, and the camera module is an 800 ten thousand high-definition camera; the two-dimensional scanning module supports scanning of one-dimensional codes and two-dimensional codes.
Preferably, the server terminal is further provided with an alarm base module matched with the handheld terminal, the metering automation system platform and the communication terminal of operation and maintenance personnel can log in the server terminal and enter the alarm base module, and a terminal meter code missing number list, a voltage acquisition missing number list, a current acquisition missing number list, a meter code reversing list, a meter code flying list, a voltage transformer abnormity list, a current phase failure list and a voltage phase failure list can be generated through screening and identifying the alarm base module by quantifying input parameters;
wherein the parameters are quantified as: any one item of the name of the metering point, the line, the type of the measuring point, the type of the missing number and the data time.
The invention has the beneficial effects that:
the on-line operation and maintenance management platform of the gateway metering device of the power plant with the unified dispatching integrally carries out modular design and display according to functions, all the power plants with the unified dispatching are displayed according to a map form, a tree-shaped query graph is established by dividing each city and region, and the direct query function of the house number, the name of the power plant and the name of the line is supported. And automatically sending an alarm short message to the platform with abnormal platform data parameters to relevant operation and maintenance workers. The operation and maintenance personnel can download the on-line operation and maintenance analysis report of the gateway metering device automatically by taking the power plant as a unit in the month, the quarter, the half year and the year on the platform.
Drawings
FIG. 1 is a block diagram of an online operation and maintenance management platform for a gateway metering device of a power plant to be regulated;
FIG. 2 is a diagram of electrical fluctuation;
FIG. 3 is a three-phase voltage diagram and an imbalance ratio ripple diagram;
FIG. 4 is a graph of electric quantity calibration of the main meter and the auxiliary meter;
FIG. 5 is a graph showing the relationship between the time point line loss and the settlement power, the gateway power, and the load at the measurement point;
fig. 6 is an equilibrium ratio analysis curve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention relates to an online operation and maintenance management platform for a gateway metering device of a uniformly-dispatched power plant, wherein the hardware of the online operation and maintenance management platform for the gateway metering device of the uniformly-dispatched power plant comprises a server terminal; the metering automation system platform and the communication terminal of operation and maintenance personnel establish network connection through the server terminal, and the metering automation system platform can transmit basic information and parameter information of the power plant gateway metering device to the server terminal; the server terminal can analyze, calculate and process basic information and parameter information of the metering device through a built-in function module to obtain main and auxiliary meter electric quantity checking and analyzing data, main and auxiliary metering point-line loss analyzing data, mutual inductor state analyzing data, compensation electric quantity calculating data, mutual inductor balance rate analyzing data, service power consumption rate analyzing data and electric energy indication value error testing data, and the main and auxiliary meter electric quantity checking and analyzing data, the service power consumption rate analyzing data and the electric energy indication value error testing data are used for a metering automation system platform and an operation and maintenance personnel communication terminal to call and use.
Hardware setting of the server terminal:
the server terminal comprises hardware such as a computer mainboard, a CPU module, a memory bank, a solid state disk, a router, a power adapter and the like. The computer mainboard is a computer x86 mainboard with the H110T model; the CPU module is a CPU module of I77700 type; the memory bank is 8G DDR4 frequency 2133/2400 memory bank; the solid state disk is a 512G M.2socket3 interface solid state disk; the router is a high-performance router which can be integrated with an X86 mainboard from R7000P; the power adapter is a 220V input 19V output power adapter with output current > 6A.
This general regulation power plant gateway metering device online operation and maintenance management platform's theory of operation:
firstly, compiling manually recorded basic information and parameter information of a metering device into an Excel table by a metering automation system platform, and then importing the Excel table into a server terminal; then the server terminal summarizes Excel table data imported by the metering automation system platform; forming a metering device database with the area, the power supply bureau, the line, the metering point name, the user name, the measuring point type, the data time, the asset number and the metering point number; as shown in fig. 1, a gateway metering point monitoring-basic data module, a main and auxiliary meter electric quantity calibration module, a main and auxiliary metering point and line loss analysis module, a mutual inductor balance rate analysis module, a service power consumption rate analysis module and an electric energy indication value error test module are arranged in the server terminal; the data in the metering device database can be analyzed, calculated and processed through the modules to form basic data, main and auxiliary meter electric quantity verification analysis data, main and auxiliary metering point-line loss analysis data, mutual inductor state analysis data and electric energy indicating value error test data, and therefore a metering automation system platform and an operation and maintenance personnel communication terminal can call and use the data according to requirements.
The working principle of each module is as follows:
gateway metering point monitoring-basic data module:
the measurement automation system platform and the communication terminal of operation and maintenance personnel can log in the server terminal to enter a gateway measurement point monitoring-basic data module for measurement point ledger inquiry, measurement point table code inquiry or measurement point load inquiry, and the measurement is quantified through input parameters: and the gateway metering point monitoring-basic data module directly calls all data of a metering device database, and screens the data quantitatively through input parameters to obtain a data list meeting the parameter quantitation.
In addition, the gateway metering point monitoring-basic data module is subjected to long-time data summarization and is quantified by inputting two parameters: the line and data time can also form an electric quantity fluctuation diagram, a three-phase voltage diagram and an unbalance rate fluctuation diagram.
The electricity fluctuation diagram is shown in fig. 2, and a rectangular coordinate system is formed by recording time and unit kilowatt-hour of electricity consumption; the three-phase voltage diagram is shown in FIG. 3, and a rectangular coordinate system is formed by recording time and voltage values; fig. 3 shows an imbalance ratio fluctuation chart, which is a rectangular coordinate system formed by recording time and imbalance ratio percentage, wherein the imbalance ratio percentage is calculated by the following steps: the percentage of unbalance is (any phase voltage-average value of three-phase voltage)/average value of three-phase voltage x 100%.
(II) a main meter electric quantity and auxiliary meter electric quantity checking module:
the metering automation system platform and the operation and maintenance personnel communication terminal can log in the server terminal to enter the main meter and auxiliary meter electric quantity verification module, and the metering automation system platform and the operation and maintenance personnel communication terminal can quantitatively input parameters: any one of the metering point name, the region, the power supply bureau, the line and the data time, and a threshold value, and the main and auxiliary meter electric quantity checking module can generate a main and auxiliary meter alarm list.
The process of generating the alarm list of the main and auxiliary tables comprises the following steps: the main meter and auxiliary meter electric quantity checking module firstly screens data in a metering device database according to any one of a metering point name, the region, the power supply bureau, the line and data time, then calls numerical values of a main meter and an auxiliary meter from the screened data to perform electric quantity fluctuation difference analysis, and the electric quantity fluctuation difference analysis can aim at outputting results due to data acquisition failure, abnormity, mutation and the like. The calculation formula is as follows: the monitoring value of the electricity quantity verification of the main gateway and the auxiliary gateway is equal to (the electricity quantity of the main gateway-the electricity quantity of the auxiliary gateway)/the electricity quantity of the main gateway. Then generating a main meter and auxiliary meter electric quantity verification curve shown in figure 4 through a main-auxiliary meter electric quantity verification module through a monitoring value of 'main-auxiliary gateway electric quantity verification' and recording time; and giving an alarm list aiming at the metering points of which the fluctuation of the main meter and the auxiliary meter exceeds the threshold value through the electric quantity calibration curve of the main meter and the auxiliary meter, wherein the alarm list can be sent to the communication terminal of the operation and maintenance personnel in a short message form through a network established by the server terminal. The threshold value can be set according to the actual situation, the electric quantity fluctuation difference analysis of the main meter and the auxiliary meter needs to be carried out according to the cycle of day, month, quarter and year, the compared electric quantity is the electric quantity increase value in the same time period (day, month, quarter and year), and the increase value can be multiplied by the comprehensive multiplying power of the mutual inductor according to the settlement electric quantity.
In addition, the analysis process of the main and auxiliary meter electric quantity calibration module can also add electric energy meter field inspection data, mutual inductor test data, voltage transformer secondary circuit voltage drop test data and laboratory first inspection data; by adding the data, an optimized curve is formed through long-time comparison. Obtaining error trend conditions through an optimization curve; meanwhile, the metering influence caused by the capacitive current under low load can be analyzed.
(III) a main and auxiliary metering point line loss analysis module:
the metering automation system platform and the operation and maintenance personnel communication terminal can log in the server terminal to enter the main and auxiliary metering point-line loss analysis module, and the metering automation system platform and the operation and maintenance personnel communication terminal can quantitatively determine through input parameters: and the main and auxiliary metering point name, the main metering point user name, the auxiliary metering point user name, any one of data time and a line loss threshold value, and the main and auxiliary meter electric quantity checking module can generate a main and auxiliary metering point and line loss alarm list.
The process of generating the line loss alarm list of the main and auxiliary metering points comprises the following steps: the main and auxiliary metering point line loss analysis module firstly screens data in a metering device database according to any one of main and auxiliary metering point names, main metering point user names, auxiliary metering point user names and data time. Then, calculating a main-auxiliary gateway electric quantity comparison monitoring value and a main-auxiliary gateway real-time power comparison monitoring value according to the main gateway electric quantity, the auxiliary gateway electric quantity, the main gateway power and the auxiliary gateway power; calculating the formula: comparing the electric quantity of the main gateway with the electric quantity of the auxiliary gateway, wherein the comparison monitoring value is (electric quantity of the main gateway-electric quantity of the auxiliary gateway)/electric quantity of the main gateway; and comparing the real-time power of the main gateway with the real-time power of the auxiliary gateway, wherein the comparison monitoring value is (main gateway power-auxiliary gateway power)/main gateway power. Finally, according to the comparison monitoring value of the electric quantity of the main gateway and the auxiliary gateway and the comparison monitoring value of the real-time power of the main gateway and the auxiliary gateway, the time point line loss is calculated and analyzed, and a relation curve of the time point line loss, the settlement electric quantity, the gateway electric quantity and the measuring point load is drawn, wherein the relation curve is shown in figure 5; and giving a main and auxiliary metering point line loss alarm list by using a curve relation graph of the time point line loss, the settlement electric quantity, the gateway electric quantity and the metering point load and by crossing the 1-negative line loss and the 2-line loss of the station with abnormal line loss, wherein the main and auxiliary metering point line loss alarm list can be sent to an operation and maintenance personnel communication terminal in a short message form through a server terminal established network.
The line loss threshold can be adjusted according to the actual situation, a reasonable line loss level of the line can be drawn by combining the annual average line loss or the line loss of a time period with the load close to the annual average line loss or the load close to the annual average line loss, and the threshold is made to be used as a reference; the theoretical line loss can be combined for analysis, and a threshold value is formulated to be used as a reference; the line loss calculation relationship can also be drawn up according to the supply and discharge relationship, and the threshold value is made as reference.
(IV) a transformer balance rate analysis module:
the metering automation system platform and the communication terminal of the operation and maintenance personnel can log in the server terminal to enter the balance rate analysis module of the mutual inductor, and the balance rate analysis module is quantified through input parameters: and measuring any one of the point name, the area, the line and the data time, and a voltage threshold or a current threshold, and generating a balance rate analysis list by a transformer balance rate analysis module to analyze each index of the balance rate of the transformer.
The process of generating the balance rate analysis list comprises the following steps: and the transformer balance rate analysis module firstly screens the data in the metering device database according to any one of the name of the metering point, the area, the line and the data time. Then calculating the voltage unbalance rate and the current unbalance rate according to the three-phase voltage and the three-phase current; the calculation formula is as follows: voltage unbalance rate (U)x－(Ua+Ub+Uc)/3)/(Ua+Ub+Uc) A/3; current imbalance rate ═ IX－(Ia+Ib+Ic)/3)/(Ia+Ib+Ic) A/3; wherein U isxTo be calculated, IxFor the phase current to be calculated, Ua、Ub、UcIs a three-phase voltage, Ia、Ib、IcIs a three-phase current. And finally, screening the data for calculating the voltage unbalance rate and the current unbalance rate again according to the voltage threshold or the current threshold, thereby generating a balance rate analysis list.
In addition, the transformer balance rate analysis module carries out long-time data summarization and quantifies through inputting three parameters: the metering point names, the lines to which the metering point names belong and the data time, and the transformer balance rate analysis module can also form a balance rate analysis curve, and the balance rate analysis curve is shown in fig. 6; and the balance rate analysis curve forms a rectangular coordinate system by recording time, a voltage unbalance rate and a current unbalance rate. Quantification by input parameters: and measuring any one of the point name, the region, the line and the data time, and calculating the values of the same-phase and ring-phase ratio values among the phase voltage current of the bus in the current period, the phase voltage current of the bus in the previous period and the phase voltage current of the bus in the same period in the last year by using a transformer balance ratio analysis module, and displaying the values in a table form or a bar graph form.
(V) electric energy indicating value error test module:
the metering automation system platform and the communication terminal of the operation and maintenance personnel can log in the server terminal and enter the electric energy indicating value error test module, and the electric energy indicating value error test module is quantified through input parameters: any one item of the metering point name, the user name and the data time, and the decimal digit, the electric energy indicating value error test module can generate an electric energy indicating value error test list.
The process of generating the electric energy indicating value error test list comprises the following steps: the electric energy indicating value error test module firstly screens data in a metering device database according to any one of a metering point name, a user name and data time. Then according to the screened data, carrying out electronic calculation through the electric energy of the total electric energy counter of the current electronic display, the electric energy of the counter corresponding to each rate time period of the current electronic display, the rate number and the decimal digit of the total electric energy counter of the electronic display; the calculation formula is as follows:
│WD-(WD1+WD2+…+WDn│≤(n-1)×10-β
wherein WDFor the current electronic display total power counter, WD1,WD2,…WDnThe electric energy of a counter corresponding to each rate time interval of the current electronic display is used, n is a rate number, and beta is a decimal digit number of a total electric energy counter of the electronic display;
and finally, generating an electric energy indicating value error test list.
On the basis of the technical scheme, the hardware of the online operation and maintenance management platform of the gateway metering device of the power plant for the overall dispatching power plant also comprises a handheld terminal, and the handheld terminal can read the metering device, so that basic information and parameter information of the metering device are recorded and compiled into an Excel table instead of manual work; and the handheld terminal and the server terminal establish network connection to realize information transmission.
The handheld terminal is composed of a handheld terminal complete shell, a handheld terminal special core board, a handheld terminal mainboard, an infrared laser module, a camera module, a two-dimensional scanning module, a power adapter and a data line. The handheld terminal complete set shell contains TP, a liquid crystal display screen and auxiliary materials, the liquid crystal display screen is a 5.5-inch high-definition screen, and visual angle and multi-point touch can be achieved; the special core board for the handheld terminal is a core board with 8 cores of 1.8GHZ, 2G RAM and 16G ROM; the handheld terminal mainboard comprises a 4G full-network communication module, a 2.4G/5G WiFi module and a Bluetooth 4.1 module; the infrared laser module is compatible with NFC, HF and RFID, conforms to ISO14443A and ISO15693 standards, integrates a power infrared protocol, and conforms to DL/T645-1997 and DL/T645-2007 standards; the camera module is 800 ten thousand high-definition cameras; the two-dimensional scanning module supports scanning of one-dimensional codes and two-dimensional codes.
The server terminal is also provided with an alarm library module matched with the handheld terminal, and the alarm library module gives an alarm list aiming at the conditions of terminal meter code shortage, voltage acquisition shortage, current acquisition shortage, meter code falling, meter code flying, voltage transformer abnormity, current open-phase, voltage open-phase and the like. The measurement automation system platform and the communication terminal of operation and maintenance personnel can log in the server terminal and enter the warning library module, and the operation and maintenance personnel can input parameters quantitatively: and any one of the metering point name, the line, the measuring point type, the missing number type and the data time can be generated by the alarm library module, and a terminal meter code missing number list, a voltage acquisition missing number list, a current acquisition missing number list, a meter code reverse-running list, a meter code flying-running list, a voltage transformer abnormity list, a current open-phase list and a voltage open-phase list can be generated.
The generation process comprises the following steps: and the alarm library module firstly screens the data in the metering device database according to any one of the name of the metering point, the line, the type of the measuring point, the type of the missing number and the data time.
The alarm library module is normal through a channel, but any one of 4 data items with reactive power in the forward and reverse directions is absent, and the data is calculated and screened for 4 hours in duration, so that a terminal table code absent list is formed.
The alarm library module counts ABC phase three-wire counting AC phase according to the count of ABC phase voltage collection success and defect times every day and the three-phase four-wire ammeter, and a voltage collection defect list is formed by judging whether defect conditions are non-collection and null and 10000 default zero as counting time.
The alarm library module counts ABC phase three-wire counting AC phase according to the ABC phase current collection success rate and the defect times of each day, and the three-phase four-wire ammeter counts ABC phase three-wire counting AC phase, and the defect conditions are non-collection, null and-10000; and defaulting the zero point to be statistical time so as to form a current acquisition default list.
The alarm library module is used for judging the conditions as follows: the degree of any register at the next integral point of the electric energy meter is less than the degree of the register at the previous integral point of the electric energy meter, so that a code reverse list is formed.
The alarm library module compares the reactive power at each integral point (such as 9 to 10 points) with the reactive power at the last integral point (such as 8 to 9 points), and identifies the name of the metering point with the power increased or decreased by more than 3 times, thereby forming a table code flying list.
The alarm library module stores the maximum value and the minimum value after comparing the acquired voltage values, identifies that the difference value between the maximum value and the minimum value of the same-phase voltage is greater than 0.5V, and is abnormal as long as one phase is abnormal, thereby forming an abnormal list of the voltage transformer.
The alarm library module identifies current data of a certain point to identify that the current of one phase or two phases is 0; the phase current of any one of the ABC phase or the AC phase is not zero, so that a current open-phase list is formed.
The alarm library module identifies voltage data of a certain point to identify that one-phase or two-phase voltage is 0, so that a voltage open-phase list is formed.
Claims (9)
1. The utility model provides an online operation and maintenance management platform of power plant gateway metering device is transferred to system which characterized in that: the hardware of the online operation and maintenance management platform of the gateway metering device of the power plant for the master dispatching comprises a server terminal; the metering automation system platform and the communication terminal of operation and maintenance personnel establish network connection through the server terminal, and the metering automation system platform can transmit basic information and parameter information of the power plant gateway metering device to the server terminal; the server terminal can analyze, calculate and process basic information and parameter information of the metering device through a built-in function module to obtain main and auxiliary meter electric quantity checking and analyzing data, main and auxiliary metering point-line loss analyzing data, mutual inductor state analyzing data, compensation electric quantity calculating data, mutual inductor balance rate analyzing data and electric energy indication value error testing data, and the main and auxiliary meter electric quantity checking and analyzing data, the mutual inductor state analyzing data, the compensation electric quantity calculating data, the mutual inductor balance rate analyzing data and the electric energy indication value error testing data are used for a metering automation system platform and an operation and maintenance personnel communication terminal to call and use.
2. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 1, characterized in that: the server terminal comprises a computer mainboard, a CPU module, a memory bank, a solid state disk, a router and a power adapter; the server terminal comprises the following built-in functional modules: gateway metering point monitoring-basic data module; the electric quantity checking module of the main meter and the auxiliary meter; a main and auxiliary metering point and line loss analysis module; a transformer balance rate analysis module; electric energy indicating value error test module.
3. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 2, characterized in that: the gateway metering point monitoring-basic data module directly calls all data of the metering device database, and screening is carried out through the input parameter quantification to obtain a data list meeting the parameter quantification;
wherein the parameters are quantified as: any one of the name of the metering point, the region, the power supply station, the line and the data time in the basic information and the parameter information of the power plant gateway metering device.
4. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 2, characterized in that: the gateway metering point monitoring-basic data module can also form an electric quantity fluctuation graph, a three-phase voltage graph and an unbalance rate fluctuation graph by inputting two parameter quantification;
wherein the parameters are quantified as: and measuring the line and the data time in the basic information and the parameter information of the device at the power plant gateway.
5. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 2, characterized in that: the main and auxiliary metering point-line loss analysis module screens data in a metering device database according to parameter quantification; then, calculating a main-auxiliary gateway electric quantity comparison monitoring value and a main-auxiliary gateway real-time power comparison monitoring value according to the main gateway electric quantity, the auxiliary gateway electric quantity, the main gateway power and the auxiliary gateway power; finally, drawing a relation curve of time point line loss and settlement electric quantity, gateway electric quantity and measuring point load according to the main-auxiliary gateway electric quantity comparison monitoring value and the main-auxiliary gateway real-time power comparison monitoring value, identifying negative line loss and line loss crossing thresholds, generating a main-auxiliary measuring point line loss alarm list, and establishing a network through a server terminal to send the main-auxiliary measuring point line loss alarm list to an operation and maintenance personnel communication terminal in a short message mode;
wherein the parameters are quantified as: any one of main and auxiliary metering point names, main metering point user names, auxiliary metering point user names and data time in basic information and parameter information of the power plant gateway metering device, and a line loss threshold value.
6. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 2, characterized in that: the mutual inductor balance rate analysis module is used for screening data in the metering device database according to the parameter quantification; calculating a voltage unbalance rate and a current unbalance rate according to the voltage of the wiring circuit, the current of the wiring circuit, the three-phase voltage of the bus and the three-phase current of the bus; finally, screening the data of the calculated voltage unbalance rate and current unbalance rate again according to the voltage threshold value or the current threshold value, thereby generating a balance rate analysis list;
wherein the parameters are quantified as: any one item of the name of the metering point, the region, the route and the data time.
7. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 2, characterized in that: the electric energy indicating value error test module firstly screens data in a metering device database according to parameter quantification; then according to the screened data, carrying out electronic calculation through the electric energy of the total electric energy counter of the current electronic display, the electric energy of the counter corresponding to each rate time period of the current electronic display, the rate number and the decimal digit of the total electric energy counter of the electronic display; finally, generating an electric energy indicating value error test list;
the parameter quantification is any item of the name of a metering point, the name of a user and data time, and decimal digits.
8. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 1, characterized in that: the hardware of the online operation and maintenance management platform of the gateway metering device of the power master-dispatching plant comprises a handheld terminal besides a server terminal, and the handheld terminal is connected with the server terminal through a network to realize information transmission; the handheld terminal is composed of a handheld terminal complete set shell, a handheld terminal special core board, a handheld terminal main board, an infrared laser module, a camera module, a two-dimensional scanning module, a power adapter and a data line; the handheld terminal comprises a handheld terminal complete shell, a handheld terminal mainboard and a camera module, wherein the handheld terminal complete shell contains TP, a liquid crystal display screen and auxiliary materials, the liquid crystal display screen is a 5.5-inch high-definition screen, the handheld terminal special core board is a 8-core 1.8GHZ, 2G RAM and 16G ROM core board, the handheld terminal mainboard contains a 4G full-network communication module, a 2.4G/5G WiFi module and a Bluetooth 4.1 module, an infrared laser module is compatible with NFC, HF and RFID, and the camera module is an 800 ten thousand high-definition camera; the two-dimensional scanning module supports scanning of one-dimensional codes and two-dimensional codes.
9. The on-line operation and maintenance management platform for the gateway metering device of the master power plant according to claim 8, characterized in that: the server terminal is also provided with an alarm base module matched with the handheld terminal, the metering automation system platform and the communication terminal of operation and maintenance personnel can log in the server terminal and enter the alarm base module, and a terminal meter code missing number list, a voltage acquisition missing number list, a current acquisition missing number list, a meter code reversing list, a meter code flying list, a voltage transformer abnormity list, a current phase failure list and a voltage phase failure list can be generated through screening and identifying the alarm base module by quantifying input parameters;
wherein the parameters are quantified as: any one item of the name of the metering point, the line, the type of the measuring point, the type of the missing number and the data time.
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