CN114006468B - Power consumption information analysis system for transformer area - Google Patents
Power consumption information analysis system for transformer area Download PDFInfo
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- CN114006468B CN114006468B CN202111216976.9A CN202111216976A CN114006468B CN 114006468 B CN114006468 B CN 114006468B CN 202111216976 A CN202111216976 A CN 202111216976A CN 114006468 B CN114006468 B CN 114006468B
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- H—ELECTRICITY
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- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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Abstract
The application relates to a district power consumption information analysis system, which comprises: the system comprises an acquisition module, an electric energy metering module, an analysis module, a phase conversion module and a calculation module; the system comprises an acquisition module, a calculation module, a phase change module, an analysis module, a phase change module, a control module and a power consumption module, wherein the acquisition module acquires electric energy data and environment illumination information of an electric energy metering module in a platform region, the electric energy metering module is used for metering power consumption information of a load, the calculation module is used for calculating three-phase unbalance of the platform region, the phase change module is used for carrying out phase change operation on the load according to a preset control rule, the analysis module sends a first control command, calculates the first three-phase unbalance before phase change, can set the control rule, sends a second control command to the calculation module after the phase change of the phase change module, carries out second three-phase unbalance calculation, compares the calculated first three-phase unbalance with the calculated second three-phase unbalance to obtain an unbalance deviation condition, and determines whether the power consumption information of the platform region is normal according to the unbalance deviation condition.
Description
Technical Field
The application relates to the technical field of electric power, in particular to a power consumption analysis system for a station area.
Background
The electric energy generally needs to pass through four links of power transmission, power transformation, power distribution and power consumption to effectively reach users, and aiming at more and more current power consumption users and types of the power consumption users, the electric energy loss is generated in various different users and links, and is abbreviated as line loss. How to reduce the loss in the line is a research that is continuously performed by each electric company, then along with the continuous development of the electric power technology, more electric energy is generated in the future through photovoltaic surfing the internet to meet the electric power demand of more users, and the electric power company is a new situation, how to formulate more effective line setting according to the new electric power situation, formulate more efficient electric power distribution mode, and all need to perform more effective analysis on the electric power information of the users, so that the line loss is reduced through analysis, unnecessary electric energy waste caused by the electricity larceny or abnormal line of the users is avoided, and the electric power distribution mode is an important research direction which needs to be continuously improved.
Disclosure of Invention
The application relates to a district power consumption information analysis system, which comprises: the system comprises an acquisition module, an electric energy metering module, an analysis module, a phase conversion module and a calculation module; the system comprises an acquisition module, a calculation module, a phase conversion module, an analysis module, a control module and a calculation module, wherein the acquisition module is used for acquiring electric energy data, ambient light information and ambient temperature information of an electric energy metering module in a platform region, the electric energy metering module is used for metering electric energy information of a load, the calculation module is used for calculating three-phase unbalance of the platform region, the phase conversion module is used for carrying out phase conversion operation on the load according to a preset control rule, the analysis module sends a first control command, calculates to obtain the first three-phase unbalance before the phase conversion, can set the control rule, sends a second control command to the calculation module after the phase conversion of the phase conversion module, carries out second three-phase unbalance calculation, compares the calculated first three-phase unbalance with the calculated second three-phase unbalance to obtain an unbalance deviation condition, and determines whether the electric energy information of the platform region is normal or not according to the unbalance deviation condition.
The system comprises a power consumption analysis system for the transformer area, wherein the acquisition module comprises a voltage transformer, a current transformer, a temperature sensor and an illumination intensity detector, and the voltage transformer and the current transformer respectively acquire voltage data and current data of a user electric energy meter in the transformer area; the temperature sensor is used for measuring the ambient temperature that the module set up, the illumination intensity detector is used for monitoring real-time illumination intensity.
The power consumption information analysis system for the platform area comprises the following specific steps of:
determining a control rule of phase change operation, and setting a specific phase change second time node according to the control rule;
according to the second time node, forward pushing for a set time to obtain a first time node, and storing the first time node;
timing is carried out, whether a first time node is reached or not is judged, if so, a first control command is sent to the calculation module, and after the calculation module receives the first control command, first three-phase unbalance calculation is carried out;
the phase change operation is carried out, A-phase users are randomly selected from A-phase users in three phases, electric quantity of the selected A-phase users is calculated, B-phase users are randomly selected from B-phase users in three phases, electric quantity of the selected B-phase users is calculated, so that the electric quantity of the A-phase users is equal to the electric quantity of the B-phase users, and the electric quantity metering modules of the selected A-phase users and the selected B-phase users are subjected to phase change;
after the commutation is completed, judging whether the second time node is reached, and after the second time node is reached, sending a second control command to the calculation module to calculate a second three-phase unbalance degree;
and obtaining a difference value between the first three-phase unbalance degree and the second three-phase unbalance degree, obtaining an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption information of the platform region is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption information of the platform region is abnormal, and carrying out abnormality analysis.
The system for analyzing the power consumption of the platform specifically comprises:
checking whether the electric quantity of the selected A-phase user and the selected B-phase user is obviously changed, judging whether the illumination intensity is obviously changed with the illumination intensity before phase change at the moment if the electric quantity is obviously changed, judging that the phase change three-phase imbalance is caused by the obvious change of the photovoltaic Internet electric quantity connected to the electric energy metering module at the moment through the obvious change of the illumination intensity, if the illumination intensity is not obviously changed, switching the phase of the selected A-phase user and the phase of the selected B-phase user back to the initial phase, namely switching the selected A-phase user back to the A-phase, switching the selected A-phase user back to the B-phase, judging whether the three-phase imbalance at the moment returns to normal or not, if the three-phase imbalance returns to normal, indicating that the electricity stealing behavior of the load connected to the electric energy metering module exists in the selected A-phase user and then carrying out the user positioning search of the electricity stealing behavior;
if the electric quantity does not change obviously, calculating selected A-phase photovoltaic electric energy and selected B-phase photovoltaic electric energy according to the real-time illumination intensity monitored by the illumination intensity detector, obtaining the theoretical inversion condition of the electric energy metering module caused by the current illumination intensity photovoltaic Internet surfing through the selected A-phase photovoltaic electric energy and the selected B-phase photovoltaic electric energy, obtaining the actual inversion condition of the electric energy metering module, comparing whether the actual inversion condition is larger than the theoretical inversion condition, if so, judging that abnormal Internet surfing electricity utilization behaviors exist, and searching for abnormal Internet surfing users.
The system for analyzing the electricity consumption of the platform region specifically comprises the following steps of:
randomly extracting a first A-phase user and a second B-phase user from the selected A-phase user and the selected B-phase user to enable theoretical electric quantity of the first A-phase user and theoretical electric quantity of the second B-phase user to be equal, then carrying out phase change operation on the first A-phase user and the second B-phase user, calculating whether three-phase balance degree after phase change is normal, if the three-phase balance degree is normal, carrying out photovoltaic electric energy calculation on the first A-phase user and the second B-phase user, judging whether an inversion condition of an electric energy metering module caused by the photovoltaic electric energy is normal, if the inversion condition is normal, indicating that electricity utilization of the first A-phase user and the second B-phase user is normal, if the three-phase balance degree is abnormal, continuing to randomly extracting the A-phase user and the B-phase user with equal electric quantity from the first A-phase user and the second B-phase user, carrying out phase change operation on each sample, carrying out multiple times of extraction on each sample, and then carrying out next sample extraction reduction in sequence until finding out abnormal electricity utilization user.
The system for analyzing the power consumption of the platform region specifically comprises the following steps of: searching and dividing time periods for abnormal internet surfing users to operate, wherein the time periods are respectively as follows: directly searching whether a user of the inverted electric energy metering module exists at night, in the morning, in the daytime and in the evening, and if so, directly judging that the electricity consumption of the user is abnormal;
if the photovoltaic module is in the morning or in the evening, calculating a first theoretical inversion turn number corresponding to the electric energy metering module by surfing the internet for the generated energy of the photovoltaic module in the morning or in the evening, obtaining a first actual inversion turn number of the electric energy metering module, subtracting the first theoretical inversion turn number from the first actual inversion turn number to obtain a first inversion difference value, dividing the first inversion difference value by the first theoretical inversion turn number to obtain a first turn number ratio, judging whether the first turn number ratio is greater than 40%, and if so, judging that the photovoltaic internet surfing electricity larceny suspicion exists for the current user;
if the photovoltaic power generation quantity of the photovoltaic power module is in daytime, calculating a second theoretical inversion turn number corresponding to the photovoltaic power module, enabling the photovoltaic power module to surf the internet, obtaining a second actual inversion turn number of the photovoltaic power module, subtracting the second theoretical inversion turn number from the second actual inversion turn number to obtain a second inversion difference value, dividing the second inversion difference value by the second theoretical inversion turn number to obtain a second turn number ratio, judging whether the second turn number ratio is larger than 15%, and if so, judging that the photovoltaic power-on-line electricity theft suspicion exists for the current user;
and switching the photovoltaic electric energy of the user with the suspected photovoltaic online electricity larceny to be directly transmitted to the electric storage device for receiving without the electric energy metering module, judging whether the electric energy metering module is still inverted, comparing the theoretical value of the photovoltaic electric energy with the electric energy received by the storage device, if the comparison result is greatly different and the electric energy metering module is still inverted, indicating that the user has abnormal photovoltaic online behavior, and if the comparison result is not greatly different or the electric energy metering module is inverted, notifying maintenance personnel to carry out field maintenance.
The power consumption analysis system for the transformer area is characterized in that the analysis module comprises: the device comprises a first setting module, a second setting module, a timer, a calculation control unit, a commutation control unit, a memory and an abnormality analysis unit, wherein the first setting module is connected with the second setting module, the second setting module is connected with the memory, the memory is connected with the timer, the timer is respectively connected with the calculation control unit and the commutation control unit, and the commutation control unit is connected with the abnormality analysis unit;
the first setting module is used for determining a control rule of the commutation operation and setting a specific commutation second time node according to the control rule;
the second setting module is connected with the first setting module, forwards pushes a set time according to the second time node, obtains a first time node, and stores the first time node into the memory;
the timer is used for timing, is connected with the memory, is used for receiving the first time node from the memory, judging whether the first time node is reached, and if so, sending a timing signal to the calculation control unit;
the calculation control unit receives the timing signal, then sends a first control command to the calculation module, and after receiving the first control command, the calculation module calculates the first three-phase unbalance degree and sends a first three-phase unbalance degree completion signal to the commutation control unit;
after receiving the first three-phase imbalance degree completion signal, the phase change control unit controls the phase change module to perform phase change operation, randomly selects an A-phase user from an A-phase in three phases, calculates electric quantity of the selected A-phase user, randomly selects a B-phase user from a B-phase in three phases, calculates electric quantity of the selected B-phase user, enables the electric quantity of the A-phase user to be equal to the electric quantity of the B-phase user, and performs phase change on the electric quantity metering modules of the selected A-phase user and the selected B-phase user;
after the commutation is completed, the commutation control unit sends a commutation completion signal to the timer, a second time node which is performed by the timer counts time, whether the second time node is reached or not is judged through the timer, after the second time node is reached and the commutation completion signal fed back by the commutation control unit is received, the timer sends a second timing signal to the calculation module, and the calculation module performs second three-phase unbalance calculation;
and the anomaly analysis unit is connected with the phase change control unit and is used for obtaining the difference value between the first three-phase unbalance degree and the second three-phase unbalance degree to obtain an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption of the platform area is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption of the platform area is abnormal, and carrying out anomaly analysis.
In the prior art, the electricity consumption analysis is generally carried out by directly calculating the electricity quantity or by means of user behavior prediction and the like, the number of users on a line is large, the data to be processed is large, the quick analysis cannot be carried out, the abnormal electricity consumption of the users can cause unbalance of the line to a certain extent, the unbalance in the prior art is generally caused by simply identifying the load unbalance, and the load on the line is regulated by increasing the power supply or closing the load, so that the normal electricity consumption information analysis and the normal three-phase unbalance can be only solved; then, due to the fact that electricity stealing exists on the line, the method actually increases the burden of power grid dispatching, meanwhile, electric energy is lost, and the electricity stealing behavior of a user is not found through three-phase unbalance and phase change operation in the prior art.
According to the system for analyzing the power consumption information of the platform region, disclosed by the application, the power consumption of the users of the platform region is judged to be abnormal in the first step by performing the phase change operation, then the system is suitable for the requirement that the users can access the internet through the micro-grid such as the photovoltaic system in the future, and the behavior of whether the users access the internet abnormally is judged in the second step, so that the power consumption information of the platform region can be effectively analyzed in multiple directions, the effective monitoring and analysis of the power consumption information of the platform region are improved, the power consumption stability is improved, the power consumption cost is saved, and the manual overhaul is reduced. The application is characterized in that a calculation module and a phase-change module are arranged, three-phase unbalance is calculated by the calculation module respectively after and before the phase change, electricity utilization possibly has electricity stealing behaviors in the users in the platform area are determined according to the calculated first three-phase unbalance and the calculated second three-phase unbalance, and specific electricity stealing behaviors are sequentially determined through screening of a plurality of user samples; through the first setting module, the second setting module, the timer, the calculation control unit, the commutation control unit, the memory and the abnormality analysis unit of the analysis module, the abnormality analysis can be effectively performed. The application is characterized in that the photovoltaic internet surfing behavior judgment is adopted to determine the photovoltaic internet surfing reverse electric energy metering module and the electricity stealing reverse electric energy metering module, and whether the electric energy of the photovoltaic internet surfing function is reverse caused by electricity stealing is verified through obvious change of illumination intensity, so that the electricity consumption information of future internet surfing behaviors such as photovoltaic and the like is effectively analyzed, and inconvenience caused by manual rechecking is reduced.
Drawings
Fig. 1 is a schematic diagram of a system for analyzing power consumption of a cell according to the present application.
FIG. 2 is a schematic diagram showing steps of analyzing electricity consumption by the analysis module according to the present application.
FIG. 3 is a schematic diagram of an analysis module according to the present application.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Fig. 1 is a schematic diagram of a power consumption analysis system for a cell according to the present application. Comprising the following steps: the system comprises an acquisition module, an electric energy metering module, an analysis module, a phase conversion module, a calculation module and a photovoltaic module; the system comprises an acquisition module, a calculation module, a phase conversion module, an analysis module, a control module and a calculation module, wherein the acquisition module is used for acquiring electric energy data, ambient light information and ambient temperature information of an electric energy metering module in a platform region, the electric energy metering module is used for metering electric energy information of a load, the calculation module is used for calculating three-phase unbalance of the platform region, the phase conversion module is used for carrying out phase conversion operation on the load according to a preset control rule, the analysis module sends a first control command, calculates to obtain the first three-phase unbalance before the phase conversion, can set the control rule, sends a second control command to the calculation module after the phase conversion of the phase conversion module, carries out second three-phase unbalance calculation, compares the calculated first three-phase unbalance with the calculated second three-phase unbalance to obtain an unbalance deviation condition, and determines whether the electric energy information of the platform region is normal or not according to the unbalance deviation condition.
The system comprises a power consumption analysis system for the transformer area, wherein the acquisition module comprises a voltage transformer, a current transformer, a temperature sensor and an illumination intensity detector, and the voltage transformer and the current transformer respectively acquire voltage data and current data of a user electric energy meter in the transformer area; the temperature sensor is used for measuring the ambient temperature that the module set up, the illumination intensity detector is used for monitoring real-time illumination intensity.
As shown in the figure, fig. 2 is a schematic diagram of specific steps of analyzing electricity consumption information by the analysis module according to the present application, wherein the specific steps of analyzing the electricity consumption information by the analysis module are as follows:
determining a control rule of phase change operation, and setting a specific phase change second time node according to the control rule;
according to the second time node, forward pushing for a set time to obtain a first time node, and storing the first time node;
timing is carried out, whether a first time node is reached or not is judged, if so, a first control command is sent to the calculation module, and after the calculation module receives the first control command, first three-phase unbalance calculation is carried out;
the phase change operation is carried out, A-phase users are randomly selected from A-phase users in three phases, electric quantity of the selected A-phase users is calculated, B-phase users are randomly selected from B-phase users in three phases, electric quantity of the selected B-phase users is calculated, so that the electric quantity of the A-phase users is equal to the electric quantity of the B-phase users, and the electric quantity metering modules of the selected A-phase users and the selected B-phase users are subjected to phase change;
preferably, the phase change operation may further include: randomly selecting a C-phase user from a C-phase in three phases, calculating the electric quantity of the selected C-phase user, randomly selecting a B-phase user from a B-phase in three phases, calculating the electric quantity of the selected B-phase user, so that the electric quantity of the C-phase user is equal to the electric quantity of the B-phase user, and carrying out phase change on an electric quantity metering module of the selected C-phase user and the electric quantity metering module of the selected B-phase user; preferably, the phase A and the phase C can be selected for phase change operation, any two phases of the three phases are selected for operation, and the user of each phase line is selected once and randomly extracted for analysis.
After the commutation is completed, judging whether the second time node is reached, and after the second time node is reached, sending a second control command to the calculation module to calculate a second three-phase unbalance degree;
and obtaining a difference value between the first three-phase unbalance degree and the second three-phase unbalance degree, obtaining an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption information of the platform region is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption information of the platform region is abnormal, and carrying out abnormality analysis.
As shown in fig. 3, which is a schematic diagram of the analysis module of the present application, preferably, the analysis module includes: the device comprises a first setting module, a second setting module, a timer, a calculation control unit, a commutation control unit, a memory and an abnormality analysis unit, wherein the first setting module is connected with the second setting module, the second setting module is connected with the memory, the memory is connected with the timer, the timer is respectively connected with the calculation control unit and the commutation control unit, and the commutation control unit is connected with the abnormality analysis unit;
the first setting module is used for determining a control rule of the commutation operation and setting a specific commutation second time node according to the control rule;
preferably, the control rule may be set according to a fixed period, for example, a time point of a certain date is set as a second time point every month, for example, a 12 pm of 15 days of each month is set as the second time point, or a plurality of time points of a plurality of days are set as the second time point every month, for example, 12 pm of 8, 18 or 28 days of each month is set as the second time point, and it is noted that the second time point is not a mere time point, but may be a plurality of time points, only for distinguishing from the first time point;
the second setting module is connected with the first setting module, forwards pushes a set time according to the second time node, obtains a first time node, and stores the first time node into the memory; if a certain day time point is set as a first time point in each month, for example, a noon 11 point in 15 days of each month is set as a second time point, or a plurality of time points in a plurality of days are set as second time points in each month, for example, noon 11 points in 8, 18 and 28 days of each month are set as second time points, it should be noted that the time for forward pushing a set time can be preferably 1 hour, or can be preferably 30 minutes, the time for the commutation operation according to different systems can be set by itself, it should be noted that the second time points are in one-to-one correspondence with the first time points, that is, several first time points corresponding to several second times are set, and the first time points are earlier than the second time points by one set time so as to give time for the commutation operation.
The timer is used for timing, is connected with the memory, is used for receiving the first time node from the memory, judging whether the first time node is reached, and if so, sending a timing signal to the calculation control unit;
the calculation control unit receives the timing signal, then sends a first control command to the calculation module, and after receiving the first control command, the calculation module calculates the first three-phase unbalance degree and sends a first three-phase unbalance degree completion signal to the commutation control unit;
after receiving the first three-phase imbalance degree completion signal, the phase change control unit controls the phase change module to perform phase change operation, randomly selects an A-phase user from an A-phase in three phases, calculates electric quantity of the selected A-phase user, randomly selects a B-phase user from a B-phase in three phases, calculates electric quantity of the selected B-phase user, enables the electric quantity of the A-phase user to be equal to the electric quantity of the B-phase user, and performs phase change on the electric quantity metering modules of the selected A-phase user and the selected B-phase user;
after the commutation is completed, the commutation control unit sends a commutation completion signal to the timer, a second time node which is performed by the timer counts time, whether the second time node is reached or not is judged through the timer, after the second time node is reached and the commutation completion signal fed back by the commutation control unit is received, the timer sends a second timing signal to the calculation module, and the calculation module performs second three-phase unbalance calculation;
and the anomaly analysis unit is connected with the phase change control unit and is used for obtaining the difference value between the first three-phase unbalance degree and the second three-phase unbalance degree to obtain an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption of the platform area is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption of the platform area is abnormal, and carrying out anomaly analysis.
The system for analyzing the power consumption of the platform specifically comprises:
checking whether the electric quantity of the selected A-phase user and the selected B-phase user is obviously changed, judging whether the illumination intensity is obviously changed with the illumination intensity before phase change at the moment if the electric quantity is obviously changed, judging that the phase change three-phase imbalance is caused by the obvious change of the photovoltaic Internet electric quantity connected to the electric energy metering module at the moment through the obvious change of the illumination intensity, if the illumination intensity is not obviously changed, switching the phase of the selected A-phase user and the phase of the selected B-phase user back to the initial phase, namely switching the selected A-phase user back to the A-phase, switching the selected A-phase user back to the B-phase, judging whether the three-phase imbalance at the moment returns to normal or not, if the three-phase imbalance returns to normal, indicating that the electricity stealing behavior of the load connected to the electric energy metering module exists in the selected A-phase user and then carrying out the user positioning search of the electricity stealing behavior;
if the electric quantity does not change obviously, calculating selected A-phase photovoltaic electric energy and selected B-phase photovoltaic electric energy according to the real-time illumination intensity monitored by the illumination intensity detector, obtaining the theoretical inversion condition of the electric energy metering module caused by the current illumination intensity photovoltaic Internet surfing through the selected A-phase photovoltaic electric energy and the selected B-phase photovoltaic electric energy, obtaining the actual inversion condition of the electric energy metering module, comparing whether the actual inversion condition is larger than the theoretical inversion condition, if so, judging that abnormal Internet surfing electricity utilization behaviors exist, and searching for abnormal Internet surfing users.
It is preferable to check whether the electric quantity of the selected C-phase user and the selected B-phase user changes obviously, if the electric quantity changes obviously, then judge whether the illumination intensity changes obviously with the illumination intensity before the phase change at this moment, through the obvious change of the illumination intensity, then judge that the photovoltaic Internet power quantity accessed into the electric energy metering module at this moment changes obviously to cause the phase change three-phase imbalance, if the illumination intensity does not change obviously, then the selected C-phase user and the selected B-phase user change phase back to the initial phase, namely the selected C-phase user changes back to the C-phase, the selected C-phase user changes back to the B-phase, and judge whether the three-phase imbalance degree returns to normal at this moment, if the three-phase imbalance degree returns to normal, then the selected C-phase user and the selected B-phase user show that the load is not accessed into the electric energy metering module, and then perform the user positioning search of the electricity theft behavior;
if the electric quantity does not change obviously, calculating selected C-phase photovoltaic electric energy and selected B-phase photovoltaic electric energy according to the real-time illumination intensity monitored by the illumination intensity detector, obtaining the theoretical inversion condition of the electric energy metering module caused by the photovoltaic Internet surfing of the current illumination intensity through the selected C-phase photovoltaic electric energy and the selected B-phase photovoltaic electric energy, obtaining the actual inversion condition of the electric energy metering module, comparing whether the actual inversion condition is larger than the theoretical inversion condition, if so, judging that abnormal Internet surfing electricity utilization behaviors exist, and searching abnormal Internet surfing users.
Preferably, the phase A and the phase C can be selected for phase change operation, any two phases of the three phases are selected for operation, and the user of each phase line is selected once and randomly extracted for analysis.
The system for analyzing the electricity consumption of the platform region specifically comprises the following steps of:
randomly extracting a first A-phase user and a second B-phase user from the selected A-phase user and the selected B-phase user to enable theoretical electric quantity of the first A-phase user and theoretical electric quantity of the second B-phase user to be equal, then carrying out phase change operation on the first A-phase user and the second B-phase user, calculating whether three-phase balance degree after phase change is normal, if the three-phase balance degree is normal, carrying out photovoltaic electric energy calculation on the first A-phase user and the second B-phase user, judging whether an inversion condition of an electric energy metering module caused by the photovoltaic electric energy is normal, if the inversion condition is normal, indicating that electricity utilization of the first A-phase user and the second B-phase user is normal, if the three-phase balance degree is abnormal, continuing to randomly extracting the A-phase user and the B-phase user with equal electric quantity from the first A-phase user and the second B-phase user, carrying out phase change operation on each sample, carrying out multiple times of extraction on each sample, and then carrying out next sample extraction reduction in sequence until finding out abnormal electricity utilization user.
Preferably, the phase A and the phase C can be selected for phase change operation, any two phases of the three phases are selected for operation, and the user of each phase line is selected once and randomly extracted for analysis.
The system for analyzing the power consumption of the platform region specifically comprises the following steps of: searching and dividing time periods for abnormal internet surfing users to operate, wherein the time periods are respectively as follows: directly searching whether a user of the inverted electric energy metering module exists at night, in the morning, in the daytime and in the evening, and if so, directly judging that the electricity consumption of the user is abnormal;
if the photovoltaic module is in the morning or in the evening, calculating a first theoretical inversion turn number corresponding to the electric energy metering module by surfing the internet for the generated energy of the photovoltaic module in the morning or in the evening, obtaining a first actual inversion turn number of the electric energy metering module, subtracting the first theoretical inversion turn number from the first actual inversion turn number to obtain a first inversion difference value, dividing the first inversion difference value by the first theoretical inversion turn number to obtain a first turn number ratio, judging whether the first turn number ratio is greater than 40%, and if so, judging that the photovoltaic internet surfing electricity larceny suspicion exists for the current user;
if the photovoltaic power generation quantity of the photovoltaic power module is in daytime, calculating a second theoretical inversion turn number corresponding to the photovoltaic power module, enabling the photovoltaic power module to surf the internet, obtaining a second actual inversion turn number of the photovoltaic power module, subtracting the second theoretical inversion turn number from the second actual inversion turn number to obtain a second inversion difference value, dividing the second inversion difference value by the second theoretical inversion turn number to obtain a second turn number ratio, judging whether the second turn number ratio is larger than 15%, and if so, judging that the photovoltaic power-on-line electricity theft suspicion exists for the current user;
and switching the photovoltaic electric energy of the user with the suspected photovoltaic online electricity larceny to be directly transmitted to the electric storage device for receiving without the electric energy metering module, judging whether the electric energy metering module is still inverted, comparing the theoretical value of the photovoltaic electric energy with the electric energy received by the storage device, if the comparison result is greatly different and the electric energy metering module is still inverted, indicating that the user has abnormal photovoltaic online behavior, and if the comparison result is not greatly different or the electric energy metering module is inverted, notifying maintenance personnel to carry out field maintenance.
In the prior art, the electricity consumption analysis is generally carried out by directly calculating the electricity quantity or by means of user behavior prediction and the like, the number of users on a line is large, the data to be processed is large, the quick analysis cannot be carried out, the abnormal electricity consumption of the users can cause unbalance of the line to a certain extent, the unbalance in the prior art is generally caused by simply identifying the load unbalance, and the load on the line is regulated by increasing the power supply or closing the load, so that the normal electricity consumption information analysis and the normal three-phase unbalance can be only solved; then, due to the fact that electricity stealing exists on the line, the method actually increases the burden of power grid dispatching, meanwhile, electric energy is lost, and the electricity stealing behavior of a user is not found through three-phase unbalance and phase change operation in the prior art.
According to the power consumption analysis system for the transformer area, disclosed by the application, the power consumption analysis can be effectively carried out through the phase change operation, the abnormal power consumption behavior can be rapidly determined, meanwhile, the calculation amount of analysis is reduced, the first step is carried out to judge whether the power consumption of a user in the transformer area is abnormal or not, then the power consumption analysis system is suitable for the future user to judge whether the power consumption of the user is abnormal or not through the requirement of micro-grid networking such as photovoltaic and the like, the second step is carried out to judge whether the power consumption of the user is abnormal or not, the multidirectional analysis can be effectively carried out on the power consumption information of the transformer area, the effective monitoring and analysis of the power consumption information of the transformer area are improved, the power consumption stability is improved, the power consumption cost is saved, and the manual overhaul is reduced. The application is characterized in that a calculation module and a phase-change module are arranged, three-phase unbalance is calculated by the calculation module respectively after and before the phase change, electricity utilization possibly has electricity stealing behaviors in the users in the platform area are determined according to the calculated first three-phase unbalance and the calculated second three-phase unbalance, and specific electricity stealing behaviors are sequentially determined through screening of a plurality of user samples; through the first setting module, the second setting module, the timer, the calculation control unit, the commutation control unit, the memory and the abnormality analysis unit of the analysis module, the abnormality analysis can be effectively performed. The second improvement of the application is that the photovoltaic internet surfing behavior judgment is aimed at determining the photovoltaic internet surfing inversion electric energy metering module and the electricity stealing inversion electric energy metering module, so that the electricity consumption of future internet surfing behaviors such as photovoltaic and the like is effectively analyzed, and the inconvenience caused by manual rechecking is reduced.
Claims (6)
1. A system for analyzing power consumption of a station, comprising: the system comprises an acquisition module, an electric energy metering module, an analysis module, a phase conversion module and a calculation module; the system comprises an acquisition module, a calculation module, a phase conversion module, a control module and a power supply module, wherein the acquisition module is used for acquiring electric energy data, environment illumination information and environment temperature information of an electric energy metering module in a platform region, the electric energy metering module is used for metering the electric energy information of a load, the calculation module is used for calculating the three-phase unbalance of the platform region, the phase conversion module is used for carrying out phase conversion operation on the load according to a preset control rule, the analysis module sends a first control command, calculates to obtain the first three-phase unbalance before the phase conversion, can set the control rule, sends a second control command to the calculation module after the phase conversion of the phase conversion module, carries out second three-phase unbalance calculation, compares the calculated first three-phase unbalance with the calculated second three-phase unbalance to obtain an unbalance deviation condition, and determines whether the electric energy information of the platform region is normal according to the unbalance deviation condition;
the specific steps of the analysis module for analyzing the power consumption information are as follows:
determining a control rule of phase change operation, and setting a specific phase change second time node according to the control rule;
according to the second time node, forward pushing for a set time to obtain a first time node, and storing the first time node;
timing is carried out, whether a first time node is reached or not is judged, if so, a first control command is sent to the calculation module, and after the calculation module receives the first control command, first three-phase unbalance calculation is carried out;
the phase change operation is carried out, A-phase users are randomly selected from A-phase users in three phases, electric quantity of the selected A-phase users is calculated, B-phase users are randomly selected from B-phase users in three phases, electric quantity of the selected B-phase users is calculated, so that the electric quantity of the A-phase users is equal to the electric quantity of the B-phase users, and the electric quantity metering modules of the selected A-phase users and the selected B-phase users are subjected to phase change;
after the commutation is completed, judging whether the second time node is reached, and after the second time node is reached, sending a second control command to the calculation module to calculate a second three-phase unbalance degree;
obtaining a difference value between the first three-phase unbalance degree and the second three-phase unbalance degree, obtaining an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption information of the platform area is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption information of the platform area is abnormal, and carrying out abnormality analysis;
the performing of the anomaly analysis specifically includes:
checking whether the electric quantity of the selected A-phase user and the selected B-phase user is obviously changed, judging whether the illumination intensity is obviously changed with the illumination intensity before phase change at the moment if the electric quantity is obviously changed, judging that the phase change three-phase imbalance is caused by the obvious change of the photovoltaic Internet electric quantity connected to the electric energy metering module at the moment through the obvious change of the illumination intensity, if the illumination intensity is not obviously changed, switching the phase of the selected A-phase user and the phase of the selected B-phase user back to the initial phase, namely switching the selected A-phase user back to the A-phase, switching the selected A-phase user back to the B-phase, judging whether the three-phase imbalance at the moment returns to normal or not, if the three-phase imbalance returns to normal, indicating that the electricity stealing behavior of the load connected to the electric energy metering module exists in the selected A-phase user and then carrying out the user positioning search of the electricity stealing behavior;
if the electric quantity does not change obviously, calculating selected A-phase photovoltaic electric energy and selected B-phase photovoltaic electric energy according to the real-time illumination intensity monitored by the illumination intensity detector, obtaining the theoretical inversion condition of the electric energy metering module caused by the current illumination intensity photovoltaic Internet surfing through the selected A-phase photovoltaic electric energy and the selected B-phase photovoltaic electric energy, obtaining the actual inversion condition of the electric energy metering module, comparing whether the actual inversion condition is larger than the theoretical inversion condition, if so, judging that abnormal Internet surfing electricity utilization behaviors exist, and searching for abnormal Internet surfing users.
2. The system for analyzing the power consumption of the transformer area according to claim 1, wherein the acquisition module comprises a voltage transformer, a current transformer, a temperature sensor and an illumination intensity detector, and the voltage transformer and the current transformer acquire voltage data and current data of a user electric energy meter in the transformer area respectively; the temperature sensor is used for measuring the ambient temperature that the module set up, the illumination intensity detector is used for monitoring real-time illumination intensity.
3. The electricity consumption analysis system of claim 1, wherein the user location search for electricity theft behavior specifically comprises:
randomly extracting a first A-phase user and a second B-phase user from the selected A-phase user and the selected B-phase user to enable theoretical electric quantity of the first A-phase user and theoretical electric quantity of the second B-phase user to be equal, then carrying out phase change operation on the first A-phase user and the second B-phase user, calculating whether three-phase balance degree after phase change is normal, if the three-phase balance degree is normal, carrying out photovoltaic electric energy calculation on the first A-phase user and the second B-phase user, judging whether an inversion condition of an electric energy metering module caused by the photovoltaic electric energy is normal, if the inversion condition is normal, indicating that electricity utilization of the first A-phase user and the second B-phase user is normal, if the three-phase balance degree is abnormal, continuing to randomly extracting the A-phase user and the B-phase user with equal electric quantity from the first A-phase user and the second B-phase user, carrying out phase change operation on each sample, carrying out multiple times of extraction on each sample, and then carrying out next sample extraction reduction in sequence until finding out abnormal electricity utilization user.
4. The system for analyzing power consumption of a platform as claimed in claim 1, wherein said performing an abnormal internet user search specifically comprises: searching and dividing time periods for abnormal internet surfing users to operate, wherein the time periods are respectively as follows: directly searching whether a user of the inverted electric energy metering module exists at night, in the morning, in the daytime and in the evening, and if so, directly judging that the electricity consumption of the user is abnormal;
if the photovoltaic module is in the morning or in the evening, calculating a first theoretical inversion turn number corresponding to the electric energy metering module by surfing the internet for the generated energy of the photovoltaic module in the morning or in the evening, obtaining a first actual inversion turn number of the electric energy metering module, subtracting the first theoretical inversion turn number from the first actual inversion turn number to obtain a first inversion difference value, dividing the first inversion difference value by the first theoretical inversion turn number to obtain a first turn number ratio, judging whether the first turn number ratio is greater than 40%, and if so, judging that the photovoltaic internet surfing electricity larceny suspicion exists for the current user;
if the photovoltaic power generation quantity of the photovoltaic power module is in daytime, calculating a second theoretical inversion turn number corresponding to the photovoltaic power module, enabling the photovoltaic power module to surf the internet, obtaining a second actual inversion turn number of the photovoltaic power module, subtracting the second theoretical inversion turn number from the second actual inversion turn number to obtain a second inversion difference value, dividing the second inversion difference value by the second theoretical inversion turn number to obtain a second turn number ratio, judging whether the second turn number ratio is larger than 15%, and if so, judging that the photovoltaic power-on-line electricity theft suspicion exists for the current user;
and switching the photovoltaic electric energy of the user with the suspected photovoltaic online electricity larceny to be directly transmitted to the electric storage device for receiving without the electric energy metering module, judging whether the electric energy metering module is still inverted, comparing the theoretical value of the photovoltaic electric energy with the electric energy received by the storage device, if the comparison result is different and the electric energy metering module is still inverted, indicating that the user has abnormal photovoltaic online behavior, and if the comparison result is not different or the electric energy metering module is inverted, notifying maintenance personnel to carry out field maintenance.
5. The system for analyzing power consumption of a cell of claim 1, wherein the analysis module comprises: the device comprises a first setting module, a second setting module, a timer, a calculation control unit, a commutation control unit, a memory and an abnormality analysis unit, wherein the first setting module is connected with the second setting module, the second setting module is connected with the memory, the memory is connected with the timer, the timer is respectively connected with the calculation control unit and the commutation control unit, and the commutation control unit is connected with the abnormality analysis unit.
6. The power consumption analysis system of claim 5, wherein the first setting module is configured to determine a control rule of the commutation operation, and set a specific commutation second time node according to the control rule;
the second setting module is connected with the first setting module, forwards pushes a set time according to the second time node, obtains a first time node, and stores the first time node into the memory;
the timer is used for timing, is connected with the memory, is used for receiving the first time node from the memory, judging whether the first time node is reached, and if so, sending a timing signal to the calculation control unit;
the calculation control unit receives the timing signal, then sends a first control command to the calculation module, and after receiving the first control command, the calculation module calculates the first three-phase unbalance degree and sends a first three-phase unbalance degree completion signal to the commutation control unit;
after receiving the first three-phase imbalance degree completion signal, the phase change control unit controls the phase change module to perform phase change operation, randomly selects an A-phase user from an A-phase in three phases, calculates electric quantity of the selected A-phase user, randomly selects a B-phase user from a B-phase in three phases, calculates electric quantity of the selected B-phase user, enables the electric quantity of the A-phase user to be equal to the electric quantity of the B-phase user, and performs phase change on the electric quantity metering modules of the selected A-phase user and the selected B-phase user;
after the commutation is completed, the commutation control unit sends a commutation completion signal to the timer, a second time node which is performed by the timer counts time, whether the second time node is reached or not is judged through the timer, after the second time node is reached and the commutation completion signal fed back by the commutation control unit is received, the timer sends a second timing signal to the calculation module, and the calculation module performs second three-phase unbalance calculation;
and the anomaly analysis unit is connected with the phase change control unit and is used for obtaining the difference value between the first three-phase unbalance degree and the second three-phase unbalance degree to obtain an unbalance degree deviation condition, comparing the unbalance degree deviation with a preset unbalance degree deviation, if the unbalance degree deviation is smaller than the preset unbalance degree deviation, indicating that the power consumption of the platform area is normal, and if the unbalance degree deviation is larger than the preset unbalance degree deviation, indicating that the power consumption of the platform area is abnormal, and carrying out anomaly analysis.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064929A1 (en) * | 2016-10-09 | 2018-04-12 | 国网江苏省电力公司扬州供电公司 | Three-phase load balancing control method and system |
| CN108493965A (en) * | 2018-04-18 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Distribution transformer three-phase imbalance Automatic adjustment method |
| CN111404179A (en) * | 2020-04-17 | 2020-07-10 | 珠海万力达电气自动化有限公司 | Multifunctional three-phase unbalance treatment device and method |
| CN111463804A (en) * | 2020-05-29 | 2020-07-28 | 国网湖南省电力有限公司 | Method and system for adjusting three-phase unbalance of platform area load |
| CN112350313A (en) * | 2020-10-29 | 2021-02-09 | 国网山东省电力公司临沂供电公司 | Low-voltage distribution automatic monitoring and processing system |
-
2021
- 2021-10-19 CN CN202111216976.9A patent/CN114006468B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018064929A1 (en) * | 2016-10-09 | 2018-04-12 | 国网江苏省电力公司扬州供电公司 | Three-phase load balancing control method and system |
| CN108493965A (en) * | 2018-04-18 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Distribution transformer three-phase imbalance Automatic adjustment method |
| CN111404179A (en) * | 2020-04-17 | 2020-07-10 | 珠海万力达电气自动化有限公司 | Multifunctional three-phase unbalance treatment device and method |
| CN111463804A (en) * | 2020-05-29 | 2020-07-28 | 国网湖南省电力有限公司 | Method and system for adjusting three-phase unbalance of platform area load |
| CN112350313A (en) * | 2020-10-29 | 2021-02-09 | 国网山东省电力公司临沂供电公司 | Low-voltage distribution automatic monitoring and processing system |
Non-Patent Citations (2)
| Title |
|---|
| 基于综合经济最优数学模型的电力负荷三相不平衡的解决方案;黄毅;;物理通报(第01期);全文 * |
| 配电台区三相负荷不平衡实时在线治理方法研究;方恒福;盛万兴;王金丽;梁英;王金宇;王思源;;中国电机工程学报(第09期);全文 * |
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