CN115575704A - Phase-shifting method electricity stealing monitoring method, device, electronic equipment and medium - Google Patents

Phase-shifting method electricity stealing monitoring method, device, electronic equipment and medium Download PDF

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Publication number
CN115575704A
CN115575704A CN202211127599.6A CN202211127599A CN115575704A CN 115575704 A CN115575704 A CN 115575704A CN 202211127599 A CN202211127599 A CN 202211127599A CN 115575704 A CN115575704 A CN 115575704A
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absolute value
strategy
phase
preset threshold
element current
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Inventor
常仕亮
何珉
吴宇
杨浩
吴林峰
李明浩
陈文瑛
张茱玉
傅宏
周川
龙跃
牟攀
何程
段锴
张智
丁琳
李炳泉
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State Grid Chongqing Electric Power Co Marketing Service Center
State Grid Corp of China SGCC
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State Grid Chongqing Electric Power Co Marketing Service Center
State Grid Corp of China SGCC
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Priority to CN202211127599.6A priority Critical patent/CN115575704A/en
Publication of CN115575704A publication Critical patent/CN115575704A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/066—Arrangements for avoiding or indicating fraudulent use
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/10—Measuring sum, difference or ratio
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/006—Measuring power factor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The application discloses a method, a device, electronic equipment and a medium for monitoring electric larceny by a phase-shifting method, wherein the method comprises the following steps: acquiring the type of an ammeter of a target to be monitored; determining a target monitoring strategy hit by the target to be monitored according to the type of the electric meter, wherein the target monitoring strategy is a multi-level three-phase three-wire meter monitoring strategy or a multi-level three-wire four-wire meter monitoring strategy; sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points; and monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the hit target monitoring strategy. The application can be applied to an anti-electricity-stealing business system, and can realize accurate, automatic and intelligent judgment of electricity stealing and default electricity utilization, so that the judgment accuracy is greatly improved.

Description

Phase-shifting method and device for monitoring electricity stealing, electronic equipment and medium
Technical Field
The application relates to the technical field of power supply metering, in particular to a method and a device for monitoring phase-shift electricity stealing, electronic equipment and a medium.
Background
The existing method for judging electricity stealing and default electricity utilization mainly comprises the steps of using a phase volt-ampere meter, an electricity utilization tester, a pincerlike multimeter and other testing instruments on site through electricity utilization inspectors, testing data such as voltage, current, phase and the like at an electric energy meter terminal box, and analyzing and judging whether electricity stealing, overload and other default electricity utilization are available or not.
The electricity inspection personnel analyze mass data among thousands of users, search electricity stealing and default electricity users, consume a large amount of time, have low efficiency, particularly consume manpower when monitoring electricity stealing by a phase-shifting method, have poor pertinence and have low accuracy of monitoring results.
Disclosure of Invention
The embodiment of the application provides a method and a device for monitoring phase-shift electricity stealing, electronic equipment and a medium. The method mainly aims at monitoring electricity stealing by a phase-shifting method, realizes accurate, automatic and intelligent judgment on electricity stealing and default electricity utilization, and greatly improves the judgment accuracy so as to overcome the defects of the prior art.
In a first aspect, an embodiment of the present application provides a method for monitoring phase-shift method electricity stealing, including:
acquiring the type of an ammeter of a target to be monitored;
determining a target monitoring strategy hit by the target to be monitored according to the type of the electric meter, wherein the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy or a multi-stage three-wire four-wire meter monitoring strategy;
sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points;
and monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the hit target monitoring strategy.
In a second aspect, an embodiment of the present application further provides a device for monitoring phase-shift electricity stealing, where the device includes:
the acquisition unit is used for acquiring the type of an ammeter of a target to be monitored;
the target monitoring strategy is a multi-level three-phase three-wire meter monitoring strategy or a multi-level three-wire four-wire meter monitoring strategy;
the sampling unit is used for sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points;
and the monitoring unit is used for monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the target monitoring strategy.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor; and a memory arranged to store computer executable instructions that, when executed, cause the processor to perform any of the methods described above.
In a fourth aspect, embodiments of the present application further provide a computer-readable storage medium storing one or more programs that, when executed by an electronic device that includes a plurality of application programs, cause the electronic device to perform any of the methods described above.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the application aims at the fact that a user of a three-phase three-wire meter and a three-wire four-wire meter often has a behavior of electricity stealing by adopting a phase shifting method, according to rules and logic relations presented under different inductive and capacitive load characteristic states, a multilevel three-phase three-wire meter monitoring strategy and a multilevel three-wire four-wire meter monitoring strategy are established, according to the threshold value, the phase shifting method electricity stealing behavior is divided into multiple levels, the corresponding monitoring strategy is determined according to the type of the electricity meter of the user, the electricity meter data of the user is sampled, and finally, according to the sampling data and a hit target monitoring strategy, the phase shifting electricity stealing behavior of a target to be monitored is monitored. The method is used for different users, electricity stealing monitoring strategies are divided into a multi-level three-phase three-wire meter monitoring strategy and a multi-level three-wire four-wire meter monitoring strategy, in the monitoring strategies, high-level electricity supply users, low-level electricity supply users, electricity stealing and default electricity utilization such as voltage phase sequence errors, current phase difference errors and polarity reversal under various complex load tide states and inductive loads, the method is set by discriminating between the abnormal operation and load characteristics, negative current and other abnormalities and electricity stealing and default electricity utilization, the method is applied to an electricity stealing business system, accurate, automatic and intelligent judgment of electricity stealing and default electricity utilization can be achieved, and judgment accuracy is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow diagram illustrating a method for monitoring phase shift based power stealing according to an embodiment of the application;
FIG. 2 is a flow chart illustrating a method for monitoring phase-shifting based stealing of electricity according to another embodiment of the present application;
FIG. 3 is a schematic view illustrating the structure of a monitoring apparatus for phase shift electricity stealing according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart illustrating a method for monitoring phase-shift electricity stealing according to an embodiment of the present application, and as can be seen from fig. 1, the present application at least includes steps S110 to S140:
step S110: and acquiring the type of the ammeter of the target to be monitored.
Treat that the user that can understand of monitoring target wants the control, current user's ammeter generally is smart electric meter, including single-phase smart electric meter, three-phase three-wire smart electric meter and three-phase four-wire smart electric meter etc. adopt single-phase smart electric meter's user to adopt to steal the electricity by the phase-shifting method very few, therefore this application is mainly applicable to three-phase three-wire smart electric meter and three-phase four-wire smart electric meter's user.
The utility model provides a to three-phase three-wire smart electric meter and three-phase four-wire smart electric meter have set up multistage monitoring strategy respectively, it is concrete, to high confession high meter, high confession low meter, the low user that supplies to count the electrified mutual inductor of low meter (i.e. the user that the measurement magnification is greater than 1), according to the value interval of threshold value, the maximum value of electric current absolute value is for leading in the unbalanced coefficient of electric current below the predetermined threshold value (like 1A), the maximum value of electric current absolute value is for the difference of predetermined threshold value (like 1A) and above-mentioned electric current absolute value of leading in, and information such as each component negative current, it is three big grades to divide into "serious level", "general level", "light and micro level" with stealing the electricity, and set up the monitoring sub-strategy respectively to each grade.
Step S120: and determining a target monitoring strategy hit by the target to be monitored according to the type of the electric meter, wherein the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy or a multi-stage three-wire four-wire meter monitoring strategy.
Then, according to the obtained electric meter type, determining a target monitoring strategy hit by a target to be monitored, in a simple way, if the electric meter type of a user is a three-phase three-wire meter monitoring strategy, hitting a multi-level three-phase three-wire meter monitoring strategy; and if the electric meter type of the user is the three-phase four-wire meter monitoring strategy, hitting a multi-stage three-phase four-wire meter monitoring strategy.
The multi-stage three-phase three-wire meter monitoring strategy comprises a severe three-phase three-wire meter monitoring sub-strategy, a general three-phase three-wire meter monitoring sub-strategy and a light three-phase three-wire meter monitoring sub-strategy; the multi-stage three-phase four-wire meter monitoring strategy comprises a severe-stage three-phase four-wire meter monitoring sub-strategy, a general-stage three-phase four-wire meter monitoring sub-strategy and a light-stage three-phase four-wire meter monitoring sub-strategy.
Step S130: and sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points.
And then sampling the ammeter of the target to be monitored, wherein the sampling can be carried out according to a preset interval, for example, sampling is carried out once every 1h, 24 acquisition points exist in one day, 24 groups of data corresponding to the 24 acquisition points are obtained, sampling can be carried out once every 15min, 96 acquisition points and 96 groups of data corresponding to the 96 acquisition points are obtained in one day, the preset interval can be set according to the monitoring precision, the sampling can be carried out once every 1h according to the type of the ammeter product, for example, a common ammeter, sampling is carried out once every 15min if the ammeter is an HPLC intelligent ammeter.
The sampled data includes, but is not limited to, current, voltage, power factor of each element in the circuit, and the like, and what data is sampled specifically may be set according to the set monitoring policy, which is not limited in this application.
The process of sampling data may further include processing the acquired data, specifically, taking an absolute value of the element current, determining a difference between a current imbalance coefficient and a current absolute value according to the element current, and determining a power factor ratio according to the element power factor and the total power factor.
Taking sampling of a three-phase three-wire meter as an example, and determining a first element current absolute value, a second element current absolute value, a current imbalance coefficient, a difference between current absolute values and a power factor ratio of the acquisition point according to the sampling data; wherein the difference between the current imbalance coefficient and the absolute value of the current is determined from the absolute value of the element current and the absolute value of the second element current, and the power factor ratio is determined from the power factors and the total power factor of the first element and the second element.
Step S140: and monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the hit target monitoring strategy.
Finally, according to the sampling data and the hit target monitoring strategy, monitoring the phase-shifting electricity stealing behavior of the target to be monitored, specifically, determining the multi-stage three-phase three-wire meter monitoring strategy or the sub-strategy in the multi-stage three-wire four-wire meter monitoring strategy which is met by each acquisition point in the sampling data; and if the ratio of the number of the acquisition points belonging to one sub-strategy to the total number of the acquisition points in the sampling data is greater than or equal to a preset ratio threshold, triggering the electricity stealing work order corresponding to the sub-strategy.
Taking 24 collection points in one day as an example, determining which sub-strategy of the multilevel three-phase three-wire meter monitoring strategy or the multilevel three-wire four-wire meter monitoring strategy each collected electricity meets, accumulating the number of collection points meeting the sub-strategy under each sub-strategy, and if the ratio of the number of collection points belonging to one sub-strategy to the total number of collection points in the sampled data is greater than or equal to a preset ratio threshold, triggering an electricity stealing work order corresponding to the sub-strategy. For example, the preset proportion threshold is 50%, when the number of collection points meeting one sub-policy is accumulated to 12, it can be determined that the target to be monitored is likely to have electricity stealing behavior, an electricity stealing work order corresponding to the sub-policy is triggered, and the electricity stealing work order is sent to a worker for further determination and auditing.
The method shown in fig. 1 shows that, according to the present application, for a user of a three-phase three-wire meter and a three-wire four-wire meter, a phase-shifting electricity stealing behavior is often adopted, a multi-stage three-phase three-wire meter monitoring strategy and a multi-stage three-wire four-wire meter monitoring strategy are established according to rules and logic relations presented in different inductive and capacitive load characteristic states, the phase-shifting electricity stealing behavior is divided into multiple stages according to the size of a threshold, a corresponding monitoring strategy is determined according to the type of the user's electricity meter, the user's electricity meter data is sampled, and finally, the phase-shifting electricity stealing behavior of the target to be monitored is monitored according to the sampled data and a hit target monitoring strategy. The method is used for different users, electricity stealing monitoring strategies are divided into a multi-level three-phase three-wire meter monitoring strategy and a multi-level three-wire four-wire meter monitoring strategy, in the monitoring strategies, high-level electricity supply users, low-level electricity supply users, electricity stealing and default electricity utilization such as voltage phase sequence errors, current phase difference errors and polarity reversal under various complex load tide states and inductive loads, the method is set by discriminating between the abnormal operation and load characteristics, negative current and other abnormalities and electricity stealing and default electricity utilization, the method is applied to an electricity stealing business system, accurate, automatic and intelligent judgment of electricity stealing and default electricity utilization can be achieved, and judgment accuracy is greatly improved.
In some embodiments of the present application, in the above method, the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy; the multi-stage three-phase three-wire meter monitoring strategy comprises a strict-grade three-phase three-wire meter monitoring sub strategy, a general-grade three-phase three-wire meter monitoring sub strategy and a light-grade three-phase three-wire meter monitoring sub strategy; the sampling data comprises a first element current absolute value, a second element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of current is determined from the absolute value of the element current and the absolute value of the second element current, and the power factor ratio is determined from the power factors and the total power factor of the first element and the second element; the determining that each acquisition point in the sampling data belongs to the multi-level three-phase three-wire meter monitoring strategy or a sub-strategy in the multi-level three-wire four-wire meter monitoring strategy comprises: for one acquisition point, if the pair of the first element current absolute value and the second element current absolute value is larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a first preset threshold range or a second preset threshold range, determining that the acquisition point meets the strict three-phase three-wire meter monitoring sub-strategy; or if the pair of the first element current absolute value and the second element current absolute value is larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is larger than or equal to a second preset threshold, the difference between the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to the first preset threshold range or the second preset threshold range, it is determined that the acquisition point meets the critical three-phase three-wire meter monitoring sub-strategy.
The method is provided with a second preset threshold, the serious-level monitoring sub-strategy and the general-level monitoring sub-strategy are divided into two conditions according to the second preset threshold, specifically, the maximum value of the current absolute value is a current imbalance coefficient introduced below the second preset threshold (such as 1A), and the maximum value of the current absolute value is the difference between the second preset threshold (such as 1A) and the introduced current absolute value.
If the type of the ammeter of the target to be monitored is a three-phase three-wire ammeter, the target monitoring strategy hit by the ammeter is a multi-stage three-phase three-wire ammeter monitoring strategy; for an acquisition point, such as 12:00 the sampling data acquired at the acquisition point and processed to obtain data including but not limited to the first element current I 1 Absolute value of | I 1 L, second element current I 2 Absolute value of | I 2 For first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 Taking the maximum value I 1 max And taking the minimum value I 1 min (ii) a And a current imbalance coefficient A, a difference B between absolute values of the currents and a power factor ratio C.
The current imbalance coefficient A is calculated by using the first element current I 1 Absolute value of | I 1 L, second element current I 2 Absolute value of (1 | I) 2 Maximum value of | I 1 max And a first element current I 1 Absolute value of (1 | I) 1 I, second element current I 2 Absolute value of (1 | I) 2 Minimum value of I 1 min Difference from the first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 Maximum value of I 1 max Quotient of (I), i.e. (I) 1 max -I 1 min )/I 1 max 。
Electric currentThe difference B between the absolute values is calculated as the first element current I 1 Absolute value of (1 | I) 1 I, second element current I 2 Absolute value of | I 2 Maximum value of I 1 max And a first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 Minimum value of I 1 min The difference of (I) 1 max -I 1 min 。
The power factor ratio C is calculated by using the first element power factor
Figure BDA0003849555440000063
And second element power factor
Figure BDA0003849555440000064
Sum, and power factor
Figure BDA0003849555440000061
Quotient of (1), i.e
Figure BDA0003849555440000062
For the case that the maximum value of the absolute value of the current is below a second predetermined threshold (e.g. 1A), for an acquisition point, if the absolute value | I of the current of the first element is 1 | and the second element current absolute value | I 2 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 | and the second element current absolute value | I 2 Maximum value of I 1 max Less than a second predetermined threshold, such as 1.0A, and the current imbalance coefficient A is less than or equal to a third predetermined threshold, such as 20%, and the power factor ratio C falls within a first predetermined threshold range or a second predetermined threshold range, i.e., the power factor ratio C is within a first predetermined threshold range or a second predetermined threshold range
Figure BDA0003849555440000071
Or alternatively
Figure BDA0003849555440000072
Wherein, K 1 Take 2.3,K 2 Taking 1.1; i.e., C less than 1.1 or C greater than 2.3. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the serious three-phase three-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is at or above a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the first element current is 1 | and the second element current absolute value | I 2 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 | and the second element current absolute value | I 2 Maximum value of I 1 max Greater than or equal to a second predetermined threshold value, such as 1.0A, and the difference B between the absolute values of said currents falls within a third predetermined threshold range, such as [0,0.3 ]]That is, B is greater than or equal to 0 and less than or equal to 0.3, and the power factor ratio C belongs to a first preset threshold range or a second preset threshold range, that is
Figure BDA0003849555440000073
Or
Figure BDA0003849555440000074
Wherein, K 1 Take 2.3,K 2 Taking 1.1; i.e., C less than 1.1 or C greater than 2.3. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the serious three-phase three-wire meter monitoring sub-strategy.
If the number of the collected data is 24 collection points every day, and the preset proportion threshold value is 50%, more than 12 collection points meet the serious three-phase three-wire meter monitoring sub-strategy, and a serious three-phase three-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and 96 points are collected every day, if more than 48 points meet the criterion, a serious three-phase three-wire meter electricity stealing work order is triggered.
In some embodiments of the present application, the determining that each collection point in the sampled data belongs to a sub-policy of the multi-stage three-phase three-wire meter monitoring policy or the multi-stage three-wire four-wire meter monitoring policy further includes: if the first element current absolute value and the second element current absolute value are both relatively larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the general-level three-phase three-wire meter monitoring sub-strategy; or if the pair of the first element current absolute value and the second element current absolute value is larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is larger than or equal to a second preset threshold, the difference between the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the critical three-phase three-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is below a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the current of the first element is 1 And absolute value of second element current | I 2 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 Absolute value of second element current | I 2 Maximum value of | I 1 max Less than a second predetermined threshold, such as 1.0A, and the current imbalance coefficient A is less than or equal to a third predetermined threshold, such as 20%, and the power factor ratio C falls within a first predetermined threshold range or a second predetermined threshold range, i.e., the power factor ratio C is within a first predetermined threshold range or a second predetermined threshold range
Figure BDA0003849555440000081
Or
Figure BDA0003849555440000082
Wherein, K 1 Taking 2.0, K 2 Taking 2.3,K 3 Take 1.1,K 4 Taking 1.4; namely 1.1 < C < 1.4 or 2.0 < C < 2.3. If the sampling data of one acquisition point is the same as that of one acquisition pointAnd if the condition is met, determining that the acquisition point meets the general-grade three-phase three-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is at or above a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the first element current is 1 | and the second element current absolute value | I 2 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 | and the second element current absolute value | I 2 Maximum value of I 1 max Greater than or equal to a second predetermined threshold value, such as 1.0A, and the difference B between the absolute values of said currents falls within a third predetermined threshold range, such as [0,0.3 ]]I.e. B is greater than or equal to 0 and less than or equal to 0.3, and the power factor ratio C belongs to a fourth preset threshold range or a fifth preset threshold range, i.e. B is greater than or equal to 0
Figure BDA0003849555440000083
Or
Figure BDA0003849555440000084
Wherein, K 1 Taking 2.0,K 2 Taking 2.3,K 3 Take 1.1,K 4 Taking 1.4; namely 1.1 < C < 1.4 or 2.0 < C < 2.3. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the general three-phase three-wire meter monitoring sub-strategy.
If the number of the collected data is 24 and the preset proportion threshold value is 50%, more than 12 points are in accordance with the general three-phase three-wire meter monitoring sub-strategy, and a general three-phase three-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and is collected into 96 points every day, if more than 48 points meet the criterion, a general-grade three-phase three-wire meter electricity stealing work order is triggered.
For a mild level of electricity stealing behavior, without distinguishing a relative size between a maximum value of an absolute value of current and a second preset threshold, in some embodiments of the present application, in the method described above, the determining that each collection point in the sampled data belongs to a sub-policy of the multi-level three-phase three-wire meter monitoring policy or the multi-level three-wire four-wire meter monitoring policy further includes: and if the current absolute value of the first element and the current absolute value of the second element are both larger than a first preset threshold value, and the power factor ratio belongs to a sixth preset threshold value range or a seventh preset threshold value range, determining that the acquisition point meets the light and micro three-phase three-wire meter monitoring sub-strategy.
I.e. for a collection point, if the absolute value of the first element current | I 1 And absolute value of second element current | I 2 The average I is larger than a first preset threshold, such as 0.05A, and the power factor ratio C belongs to a sixth preset threshold range or a seventh preset threshold range, that is
Figure BDA0003849555440000085
Or alternatively
Figure BDA0003849555440000086
Wherein, K 1 Taking 1.9,K 2 Taking 2.0, K 3 Taking 1.4,K 4 Taking 1.5; namely 1.4 < C < 1.5 or 1.9 < C < 2.0. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the light and micro three-phase three-wire meter monitoring sub-strategy.
If the number of the collected data is 24 collection points every day and the preset proportion threshold value is 50%, more than 12 points meet the light and micro three-phase three-wire meter monitoring sub-strategy, and a light and micro three-phase three-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and 96 points are collected every day, if more than 48 points meet the criterion, a light three-phase three-wire meter electricity stealing work order is triggered.
The sampling data comprises a first element current absolute value, a second element current absolute value, a third element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of current is determined from the absolute value of element current, the absolute value of second element current, and the absolute value of third element current, and the power factor ratio is determined from the power factors and the total power factor of the first, second, and third elements.
If the type of the ammeter of the target to be monitored is a three-phase four-wire ammeter, the target monitoring strategy hit by the ammeter is a multi-stage three-phase four-wire ammeter monitoring strategy; for an acquisition point, such as 12:00 the sampling data acquired at the acquisition point and processed to obtain data including but not limited to the first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 L, third element current I 3 Absolute value of | I 3 For first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of | I 3 Taking the maximum value I 2 max And taking the minimum value I 2 min (ii) a And a current imbalance coefficient A, a difference B between absolute values of the currents and a power factor ratio C.
The current imbalance coefficient A is calculated by using the first element current I 1 Absolute value of | I 1 L, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of | I 3 Maximum value of I 2 max And a first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of | I 3 Minimum value of I 2 min Difference from the first element current I 1 Absolute value of | I 1 L, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of | I 3 Maximum value of | I 2 max Quotient of (I), i.e. (I) 2 max -I 2 min )/I 2 max 。
The difference B between the absolute values of the currents is calculated as the first element current I 1 Absolute value of | I 1 L, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of (1 | I) 3 Maximum value of I 2 max And a first element current I 1 Absolute value of | I 1 I, second element current I 2 Absolute value of | I 2 And third element current I 3 Absolute value of (1 | I) 3 Minimum value of I 2 min The difference of (I) 2 max -I 2 min 。
The calculation method of the power factor ratio C is the first element power factor
Figure BDA0003849555440000091
Second element power factor
Figure BDA0003849555440000092
And third element power factor
Figure BDA0003849555440000093
Sum, and power factor
Figure BDA0003849555440000094
Quotient of (1), i.e
Figure BDA0003849555440000095
In some embodiments of the present application, in the above method, determining that each acquisition point in the sampled data satisfies one of the multi-stage three-phase three-wire meter monitoring policy and the sub-policy in the multi-stage three-wire meter monitoring policy comprises: for one collection point, if the absolute value of the first element current, the absolute value of the second element current and the absolute value of the third element current are all larger than a first preset threshold, the maximum value of the absolute value of the first element current, the absolute value of the second element current and the absolute value of the third element current is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a first preset threshold range or a second preset threshold range, it is determined that the collection point meets the critical three-phase four-wire meter monitoring sub-strategy; or if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to the first preset threshold range or the second preset threshold range, it is determined that the acquisition point meets the critical-level three-phase four-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is below a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the current of the first element is 1 Absolute value of second element current | I 2 L and absolute value of third element current I 3 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 Absolute value of second element current | I 2 And absolute value of third element current | I 3 Maximum value of | I 2 max Less than a second predetermined threshold, such as 1.0A, and the current imbalance coefficient A is less than or equal to a third predetermined threshold, such as 20%, and the power factor ratio C falls within a first predetermined threshold range or a second predetermined threshold range, i.e., the power factor ratio C is within a first predetermined threshold range or a second predetermined threshold range
Figure BDA0003849555440000101
Or
Figure BDA0003849555440000102
Wherein, K 1 Take 3.9,K 2 Taking 2.1; i.e., C < 2.1 or C > 3.9. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the serious three-phase four-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is at or above a second predetermined threshold (e.g. 1A), for an acquisition point, if the absolute value | I of the first element current is 1 | and the second element current absolute value | I 2 And absolute value of third element current | I 3 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 | and the second element current absolute value | I 2 L and absolute value of third element current I 3 Maximum value of I 2 max Greater than or equal to a second predetermined threshold value, such as 1.0A, and the difference B between the absolute values of said currents falls within a third predetermined threshold range, such as [0,0.3 ]]That is, B is greater than or equal to 0 and less than or equal to 0.3, and the power factor ratio C belongs to a fourth preset threshold range or a fifth preset threshold range, that is
Figure BDA0003849555440000111
Or alternatively
Figure BDA0003849555440000112
Wherein, K 1 Take 3.9,K 2 Taking 2.1; i.e., C < 2.1 or C > 3.9. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the serious three-phase four-wire meter monitoring sub-strategy.
If 24 acquisition points are acquired every day and the preset proportion threshold is 50%, more than 12 acquisition points accord with the serious three-phase four-wire meter monitoring sub-strategy, and a serious three-phase four-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and the collection is 96 points every day, if more than 48 points meet the criterion, a serious three-phase four-wire meter electricity stealing work order is triggered.
In some embodiments of the present application, in the above method, the determining that each acquisition point in the sampled data satisfies one of the multi-stage three-phase three-wire meter monitoring policy and the multi-stage three-wire meter monitoring policy or a sub-policy of the multi-stage three-wire four-wire meter monitoring policy further includes: if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the general-level three-phase four-wire meter monitoring sub-strategy; or if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, it is determined that the acquisition point meets the critical-level three-phase four-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is below a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the current of the first element is 1 Absolute value of second element current | I 2 And absolute value of third element current | I 3 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 Absolute value of second element current | I 2 L and absolute value of third element current I 3 Maximum value of I 2 max Less than a second predetermined threshold, such as 1.0A, and the current imbalance coefficient A is less than or equal to a third predetermined threshold, such as 20%, and the power factor ratio C falls within a first predetermined threshold range or a second predetermined threshold range, i.e., the power factor ratio C is within a first predetermined threshold range or a second predetermined threshold range
Figure BDA0003849555440000113
Or
Figure BDA0003849555440000114
Wherein, K 1 Take 3.5, K 2 Take 3.9,K 3 Take 2.1,K 4 Taking 2.5; i.e. 2.1 less than C < 2.5 or 3.5 less than C < 3.9. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets a general-grade three-phase four-wire meter monitoring sub-strategy.
For the case that the maximum value of the absolute value of the current is at or above a second predetermined threshold (e.g., 1A), for an acquisition point, if the absolute value | I of the first element current is 1 | and the second element current absolute value | I 2 L and absolute value of third element current I 3 The absolute value of the first element current is greater than a first preset threshold, such as 0.05A 1 Absolute value of the second element current | I 2 L and absolute value of third element current I 3 Maximum value of I 2 max Greater than or equal to a second predetermined threshold, such as 1.0A, and the difference B between the absolute values of said currents falls within a third predetermined threshold range, such as [0,0.3 ]]That is, B is greater than or equal to 0 and less than or equal to 0.3, and the power factor ratio C belongs to a fourth preset threshold range or a fifth preset threshold range, that is
Figure BDA0003849555440000121
Or
Figure BDA0003849555440000122
Wherein, K 1 Take 3.5, K 2 Take 3.9,K 3 Take 2.1,K 4 Taking 2.5; i.e. 2.1 less than C < 2.5 or 3.5 less than C < 3.9. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the general-grade three-phase four-wire meter monitoring sub-strategy.
If 24 acquisition points are acquired every day and the preset proportion threshold is 50%, more than 12 points accord with the general-grade three-phase four-wire meter monitoring sub-strategy, and a general-grade three-phase four-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and the collection is 96 points every day, more than 48 points meet the criterion, and a general-grade three-phase four-wire meter electricity stealing work order is triggered.
For a mild level of electricity stealing behavior, without distinguishing a relative magnitude between a maximum value of an absolute value of current and a second preset threshold, in some embodiments of the present application, in the method described above, the determining that each collection point in the sampled data satisfies a sub-policy in the multi-level three-phase three-wire meter monitoring policy or the multi-level three-wire four-wire meter monitoring policy further includes: if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold value; and if the power factor ratio belongs to a sixth preset threshold range or a seventh preset threshold range, determining that the acquisition point meets the light and micro three-phase four-wire meter monitoring sub-strategy.
I.e. for a collection point, if the absolute value of the first element current | I 1 And absolute value of second element current | I 2 And absolute value of third element current | I 3 The average I is larger than a first preset threshold, such as 0.05A, and the power factor ratio C belongs to a sixth preset threshold range or a seventh preset threshold range, that is
Figure BDA0003849555440000123
Or
Figure BDA0003849555440000124
Wherein, K 1 Taking 3.3,K 2 Take 3.5, K 3 Taking 2.5,K 4 Taking 2.7; namely 2.5 < C < 2.7 or 3.3 < C < 3.5. And if the sampling data of one acquisition point simultaneously meets the conditions, determining that the acquisition point meets the light and micro three-phase four-wire meter monitoring sub-strategy.
If the number of the collected data is 24 collection points every day and the preset proportion threshold value is 50%, more than 12 collection points meet the light and micro three-phase four-wire meter monitoring sub-strategy, and a light and micro three-phase four-wire meter electricity stealing work order is triggered. If the electric meter of the user is an HPLC intelligent electric meter and 96 points are collected every day, if more than 48 points meet the criterion, a light-level three-phase four-wire meter electricity stealing work order is triggered.
Fig. 2 is a schematic flow chart of a method for monitoring phase-shift electricity stealing according to another embodiment of the present application, and as can be seen from fig. 2, the present embodiment includes:
and acquiring the type of the electric meter of the target to be monitored, wherein the type of the electric meter is a three-phase three-wire meter.
And determining a target monitoring strategy hit by a target to be monitored as a multi-stage three-phase three-wire meter monitoring strategy according to the type of the electric meter.
And sampling the ammeter of the target to be monitored every 15min within 24 hours to obtain sampling data containing 96 acquisition points.
And determining which sub-strategy of the multi-stage three-phase three-wire meter monitoring strategy each acquisition point in the sampling data belongs to.
Determining whether the number of the acquisition points under one sub-strategy is greater than or equal to 48, if so, touching the electricity stealing work orders corresponding to the sub-strategies with the number of the acquisition points being greater than or equal to 48; if not, the sampling is continued in the next 24 hours.
Fig. 3 is a schematic structural diagram of a monitoring device for phase shift electricity stealing according to another embodiment of the present application, and as can be seen from fig. 3, the monitoring device 300 for phase shift electricity stealing includes:
the obtaining unit 310 is configured to obtain an electric meter type of the target to be monitored.
A hit unit 320, configured to determine, according to the electric meter type, a target monitoring policy that the target to be monitored hits, where the target monitoring policy is a multi-level three-phase three-wire meter monitoring policy or a multi-level three-wire four-wire meter monitoring policy.
The sampling unit 330 is configured to sample the electric meter of the target to be monitored, so as to obtain sampling data including a plurality of sampling points.
And the monitoring unit 340 is configured to monitor the phase-shifting power stealing behavior of the target to be monitored according to the sampling data and the target monitoring policy.
In some embodiments of the present application, in the above apparatus, the multi-stage three-phase three-wire meter monitoring strategy and the multi-stage three-phase four-wire meter monitoring strategy respectively include a plurality of sub-strategies; a monitoring unit 340, configured to determine a sub-policy in the multistage three-phase three-wire meter monitoring policy or the multistage three-wire four-wire meter monitoring policy that is satisfied by each acquisition point in the sampled data; and if the ratio of the number of the acquisition points meeting one sub-strategy to the total number of the acquisition points in the sampling data is greater than or equal to a preset ratio threshold, triggering the electricity stealing work order corresponding to the sub-strategy.
In some embodiments of the present application, in the above apparatus, the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy; the multi-stage three-phase three-wire meter monitoring strategy comprises a severe three-phase three-wire meter monitoring sub-strategy, a general three-phase three-wire meter monitoring sub-strategy and a light three-phase three-wire meter monitoring sub-strategy; the sampling data comprises a first element current absolute value, a second element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of the current is determined from the absolute value of the element current and the absolute value of the second element current, and the power factor ratio is determined from the power factors and the total power factor of the first and second elements; a monitoring unit 340, configured to determine, for an acquisition point, that the acquisition point satisfies the strict three-phase three-wire meter monitoring sub-policy if the first element current absolute value and the second element current absolute value are both relatively greater than a first preset threshold, a maximum value of the first element current absolute value and the second element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a first preset threshold range or a second preset threshold range; or if the absolute value of the first element current and the absolute value of the second element current are both larger than a first preset threshold value, the maximum value of the absolute value of the first element current and the absolute value of the second element current is larger than or equal to a second preset threshold value, the difference between the absolute values of the currents belongs to a third preset threshold value range, and the power factor ratio belongs to the first preset threshold value range or the second preset threshold value range, determining that the acquisition point meets the strict three-phase three-wire meter monitoring sub-strategy.
In some embodiments of the present application, in the above apparatus, the monitoring unit 340 is further configured to determine that the acquisition point satisfies the general-level three-phase three-wire meter monitoring sub-policy if the pair of the first element current absolute value and the second element current absolute value is greater than a first preset threshold, a maximum value of the first element current absolute value and the second element current absolute value is less than a second preset threshold, the current imbalance coefficient is less than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range; or if the pair of the first element current absolute value and the second element current absolute value is larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is larger than or equal to a second preset threshold, the difference between the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the critical three-phase three-wire meter monitoring sub-strategy.
In some embodiments of the present application, in the above apparatus, the monitoring unit 340 is further configured to determine that the collection point satisfies the light and micro-scale three-phase three-wire meter monitoring sub-policy if the first element current absolute value and the second element current absolute value are both relatively greater than a first preset threshold, and the power factor ratio belongs to a sixth preset threshold range or a seventh preset threshold range.
In some embodiments of the present application, in the above apparatus, the target monitoring strategy is a multi-stage three-phase four-wire meter monitoring strategy; the multi-stage three-phase four-wire meter monitoring strategy comprises a strict-stage three-phase four-wire meter monitoring sub-strategy, a general-stage three-phase four-wire meter monitoring sub-strategy and a light-stage three-phase four-wire meter monitoring sub-strategy; the sampling data comprises a first element current absolute value, a second element current absolute value, a third element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of current is determined from the absolute value of element current, the absolute value of second element current, and the absolute value of third element current, and the power factor ratio is determined from the power factors and the total power factor of the first, second, and third elements; a monitoring unit 340, configured to determine, for an acquisition point, that the acquisition point satisfies the strict three-phase four-wire table monitoring sub-policy if the first element current absolute value, the second element current absolute value, and the third element current absolute value are all greater than a first preset threshold, a maximum value among the first element current absolute value, the second element current absolute value, and the third element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a first preset threshold range or a second preset threshold range; or if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to the first preset threshold range or the second preset threshold range, it is determined that the acquisition point meets the critical-level three-phase four-wire meter monitoring sub-strategy.
In some embodiments of the present application, in the above apparatus, the monitoring unit 340 is further configured to determine that the acquisition point satisfies the general-level three-phase four-wire table monitoring sub-policy if the first element current absolute value, the second element current absolute value, and the third element current absolute value are all greater than a first preset threshold, a maximum value of the first element current absolute value, the second element current absolute value, and the third element current absolute value is less than a second preset threshold, the current imbalance coefficient is less than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range; or if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold value, the maximum value among the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold value, the difference between the current absolute values belongs to a third preset threshold value range, and the power factor ratio belongs to a fourth preset threshold value range or a fifth preset threshold value range, determining that the acquisition point meets the strict three-phase four-wire table monitoring sub-strategy.
In some embodiments of the present application, in the above apparatus, the monitoring unit 340 is further configured to determine whether the absolute value of the first element current, the absolute value of the second element current, and the absolute value of the third element current are greater than a first preset threshold; and if the power factor ratio belongs to a sixth preset threshold range or a seventh preset threshold range, determining that the acquisition point meets the light and micro three-phase four-wire meter monitoring sub-strategy.
It should be noted that, the monitoring device for electricity stealing by the phase-shifting method can implement the monitoring method for electricity stealing by the phase-shifting method one by one, and details are not repeated here.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. Referring to fig. 4, at a hardware level, the electronic device includes a processor, and optionally further includes an internal bus, a network interface, and a memory. The Memory may include a Memory, such as a Random-Access Memory (RAM), and may further include a non-volatile Memory, such as at least 1 disk Memory. Of course, the electronic device may also include hardware required for other services.
The processor, the network interface, and the memory may be connected to each other by an internal bus, which may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
And the memory is used for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory may include both memory and non-volatile storage and provides instructions and data to the processor.
The processor reads the corresponding computer program from the nonvolatile memory into the memory and runs the computer program to form the phase-shifting method electricity stealing monitoring device on the logic level. And the processor is used for executing the program stored in the memory and is specifically used for executing the method.
The method performed by the phase-shifting method electricity stealing monitoring device disclosed in the embodiment of fig. 3 of the present application can be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
The electronic device may further execute the method executed by the monitoring device for phase-shift electricity stealing in fig. 3, and implement the functions of the monitoring device for phase-shift electricity stealing in the embodiment shown in fig. 3, which are not described herein again.
Embodiments of the present application also provide a computer-readable storage medium storing one or more programs, where the one or more programs include instructions, which when executed by an electronic device including a plurality of application programs, enable the electronic device to perform the method performed by the phase-shifting electricity stealing monitoring apparatus in the embodiment shown in fig. 3, and are specifically configured to perform the foregoing method.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Disks (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of another identical element in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims (11)

1. A monitoring method for electricity stealing by a phase-shifting method is characterized by comprising the following steps:
acquiring the type of an ammeter of a target to be monitored;
determining a target monitoring strategy hit by the target to be monitored according to the type of the electric meter, wherein the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy or a multi-stage three-wire four-wire meter monitoring strategy;
sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points;
and monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the hit target monitoring strategy.
2. The method of claim 1, wherein the multi-stage three-phase three-wire meter monitoring strategy and the multi-stage three-phase four-wire meter monitoring strategy each comprise a plurality of sub-strategies; the monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the hit target monitoring strategy comprises the following steps:
determining sub-strategies in the multi-level three-phase three-wire meter monitoring strategy or the multi-level three-wire four-wire meter monitoring strategy which are met by each acquisition point in the sampling data;
and if the ratio of the number of the acquisition points meeting one sub-strategy to the total number of the acquisition points in the sampling data is greater than or equal to a preset ratio threshold, triggering the electricity stealing work order corresponding to the sub-strategy.
3. The method of claim 2, wherein the target monitoring strategy is a multi-stage three-phase three-wire meter monitoring strategy; the multi-stage three-phase three-wire meter monitoring strategy comprises a severe three-phase three-wire meter monitoring sub-strategy, a general three-phase three-wire meter monitoring sub-strategy and a light three-phase three-wire meter monitoring sub-strategy;
the sampling data comprises a first element current absolute value, a second element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of the current is determined from the absolute value of the element current and the absolute value of the second element current, and the power factor ratio is determined from the power factors and the total power factor of the first and second elements;
the determining that each collection point in the sampled data belongs to a sub-strategy in the multi-stage three-phase three-wire meter monitoring strategy or the multi-stage three-wire four-wire meter monitoring strategy comprises:
for one acquisition point, if the absolute value of the first element current and the absolute value of the second element current are both relatively larger than a first preset threshold, the maximum value of the absolute value of the first element current and the absolute value of the second element current is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a first preset threshold range or a second preset threshold range, determining that the acquisition point meets the critical three-phase three-wire meter monitoring sub-strategy;
or,
and if the pair of the first element current absolute value and the second element current absolute value is larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to the first preset threshold range or the second preset threshold range, determining that the acquisition point meets the critical three-phase three-wire meter monitoring sub-strategy.
4. The method of claim 3, wherein said determining that each acquisition point in the sampled data belongs to a sub-strategy of the multi-stage three-phase three-wire meter monitoring strategy or the multi-stage three-wire four-wire meter monitoring strategy further comprises:
if the first element current absolute value and the second element current absolute value are both relatively larger than a first preset threshold, the maximum value of the first element current absolute value and the second element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the general-level three-phase three-wire meter monitoring sub-strategy;
or,
and if the absolute value of the first element current and the absolute value of the second element current are both larger than a first preset threshold value, the maximum value of the absolute value of the first element current and the absolute value of the second element current is larger than or equal to a second preset threshold value, the difference between the absolute values of the currents belongs to a third preset threshold value range, and the power factor ratio belongs to a fourth preset threshold value range or a fifth preset threshold value range, determining that the acquisition point meets the strict three-phase three-wire meter monitoring sub-strategy.
5. The method of claim 3, wherein said determining that each collection point in said sampled data belongs to a sub-strategy of said multi-stage three-phase three-wire meter monitoring strategy or said multi-stage three-wire meter monitoring strategy further comprises:
and if the absolute value of the current of the first element and the absolute value of the current of the second element are both relatively larger than a first preset threshold value, and the power factor ratio belongs to a sixth preset threshold value range or a seventh preset threshold value range, determining that the acquisition point meets the light and micro three-phase three-wire meter monitoring sub-strategy.
6. The method of claim 2, wherein the target monitoring strategy is a multi-stage three-phase four-wire meter monitoring strategy; the multistage three-phase four-wire meter monitoring strategy comprises a severe three-phase four-wire meter monitoring sub-strategy, a general three-phase four-wire meter monitoring sub-strategy and a mild three-phase four-wire meter monitoring sub-strategy;
the sampling data comprises a first element current absolute value, a second element current absolute value, a third element current absolute value, a current imbalance coefficient, a current absolute value difference and a power factor ratio; wherein the difference between the current imbalance coefficient and the absolute value of current is determined from the absolute value of element current, the absolute value of second element current, and the absolute value of third element current, and the power factor ratio is determined from the power factors and the total power factor of the first, second, and third elements;
the determining a sub-strategy in the multi-stage three-phase three-wire meter monitoring strategy or the multi-stage three-wire four-wire meter monitoring strategy that is satisfied by each acquisition point in the sampled data includes:
for one acquisition point, if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold value, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is smaller than a second preset threshold value, the current imbalance coefficient is smaller than or equal to a third preset threshold value, and the power factor ratio belongs to a first preset threshold value range or a second preset threshold value range, determining that the acquisition point meets the strict three-phase four-wire table monitoring sub-strategy;
or,
and if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to the first preset threshold range or the second preset threshold range, determining that the acquisition point meets the critical three-phase four-wire meter monitoring sub-strategy.
7. The method of claim 6, wherein said determining a sub-strategy of said multi-level three-phase three-wire meter monitoring strategy or said multi-level three-wire four-wire meter monitoring strategy that is satisfied by each acquisition point in said sampled data further comprises:
if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is smaller than a second preset threshold, the current imbalance coefficient is smaller than or equal to a third preset threshold, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the general-level three-phase four-wire meter monitoring sub-strategy;
or,
and if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold, the maximum value of the first element current absolute value, the second element current absolute value and the third element current absolute value is larger than or equal to a second preset threshold, the difference of the current absolute values belongs to a third preset threshold range, and the power factor ratio belongs to a fourth preset threshold range or a fifth preset threshold range, determining that the acquisition point meets the critical three-phase four-wire meter monitoring sub-strategy.
8. The method of claim 6, wherein said determining a sub-strategy of said multi-level three-phase three-wire meter monitoring strategy or said multi-level three-wire four-wire meter monitoring strategy that is satisfied by each acquisition point in said sampled data further comprises:
if the first element current absolute value, the second element current absolute value and the third element current absolute value are all larger than a first preset threshold value; and if the power factor ratio belongs to a sixth preset threshold range or a seventh preset threshold range, determining that the acquisition point meets the light and micro-scale three-phase four-wire meter monitoring sub-strategy.
9. A device for monitoring phase-shift electricity stealing, the device comprising:
the acquisition unit is used for acquiring the type of the ammeter of the target to be monitored;
the target monitoring strategy is a multi-level three-phase three-wire meter monitoring strategy or a multi-level three-wire four-wire meter monitoring strategy;
the sampling unit is used for sampling the ammeter of the target to be monitored to obtain sampling data containing a plurality of acquisition points;
and the monitoring unit is used for monitoring the phase-shifting electricity stealing behavior of the target to be monitored according to the sampling data and the target monitoring strategy.
10. An electronic device, comprising:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the method of any one of claims 1 to 8.
11. A computer readable storage medium storing one or more programs which, when executed by an electronic device including a plurality of application programs, cause the electronic device to perform the method of any of claims 1-8.
CN202211127599.6A 2022-09-16 2022-09-16 Phase-shifting method electricity stealing monitoring method, device, electronic equipment and medium Pending CN115575704A (en)

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