CN116699235A - Three-phase three-wire electric energy meter with abnormality detection function - Google Patents

Three-phase three-wire electric energy meter with abnormality detection function Download PDF

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CN116699235A
CN116699235A CN202310991984.3A CN202310991984A CN116699235A CN 116699235 A CN116699235 A CN 116699235A CN 202310991984 A CN202310991984 A CN 202310991984A CN 116699235 A CN116699235 A CN 116699235A
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value
deviation
phase sequence
parameter
information
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CN116699235B (en
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杨洲
周东东
韩滨
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Anhui Rongzhao Intelligent Co ltd
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Anhui Rongzhao Intelligent Co ltd
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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
    • 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
    • G01R22/068—Arrangements for indicating or signaling faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

Abstract

The application relates to a three-phase three-wire electric energy meter with an abnormality detection function, which relates to the technical field of electric energy meters, and comprises a meter body, a memory for storing an abnormality detection analysis method and a processor for outputting parameter abnormality analysis result information; the abnormality detection analysis method includes: acquiring parameter detection information, and calling a parameter detection value corresponding to the parameter detection information; judging whether the parameter detection value is positioned in a preset parameter reference interval or not; if yes, continuing to acquire parameter detection information; if not, analyzing and calculating a deviation value between the parameter detection value and the parameter reference interval and taking the deviation value as a parameter deviation actual value; calling parameter deviation type information corresponding to the actual value of the parameter deviation; according to a preset parameter deviation analysis method, analyzing and processing the actual value of the parameter deviation and the parameter deviation type information to form parameter abnormality analysis result information and outputting the parameter abnormality analysis result information. The application has the effect of facilitating professional maintenance personnel to rapidly treat abnormal conditions.

Description

Three-phase three-wire electric energy meter with abnormality detection function
Technical Field
The application relates to the technical field of electric energy meters, in particular to a three-phase three-wire electric energy meter with an abnormality detection function.
Background
The electric energy meter is a meter for measuring electric energy, the electric energy meter is divided into a direct-current electric energy meter and an alternating-current electric energy meter according to the circuit used by the electric energy meter, and the alternating-current electric energy meter can be divided into a single-phase electric energy meter, a three-phase three-wire electric energy meter and a three-phase four-wire electric energy meter according to the phase line of the alternating-current electric energy meter.
In the related art, a three-phase three-wire electric energy meter is an electric energy meter for measuring electric energy consumed by a power supply output or a load in a three-phase alternating current circuit, and the three-phase three-wire electric energy meter adopts a mode of a plurality of groups of driving components and a plurality of aluminum discs fixed on a rotating shaft so as to realize measurement of the three-phase electric energy. When an abnormal situation occurs in the three-phase three-wire electric energy meter, professional maintenance personnel are required to draw a phasor diagram, determine a load power factor angle, analyze by adopting a hexagonal diagram and the like, and then perform wiring operation on an electrified metering loop on site so as to treat the abnormal situation.
With respect to the related art in the above, the inventors found the following drawbacks: when abnormal conditions occur in the three-phase three-wire electric energy meter, professional maintenance personnel need to draw a phasor diagram, determine a load power factor angle, analyze by adopting a hexagonal diagram and other methods before wiring operation is performed on a charged metering loop on site, so that the processing time of the abnormal conditions is prolonged, the abnormal conditions are not easy to process quickly, and the space for improvement is also provided.
Disclosure of Invention
In order to facilitate professional maintenance personnel to rapidly handle abnormal conditions, the application provides a three-phase three-wire electric energy meter with an abnormality detection function.
In a first aspect, the present application provides a three-phase three-wire electric energy meter with an abnormality detection function, which adopts the following technical scheme:
the three-phase three-wire electric energy meter with the abnormality detection function comprises a meter body, a processor and a memory, wherein the memory is used for storing a preset abnormality detection analysis method, and the processor is respectively connected with the memory and the meter body to analyze and process acquired parameter detection information in the meter body according to the abnormality detection analysis method and output parameter abnormality analysis result information;
the abnormality detection analysis method includes: acquiring parameter detection information;
according to the parameter detection information, calling a parameter detection value corresponding to the parameter detection information, and defining that the parameter detection value comprises a voltage detection value and a current detection value;
judging whether the parameter detection value is positioned in a preset parameter reference interval or not;
if yes, continuing to acquire parameter detection information;
if not, analyzing and calculating a deviation value between the parameter detection value and the parameter reference interval according to the parameter detection value and a preset parameter reference interval, and taking the deviation value as a parameter deviation actual value;
Retrieving parameter deviation type information corresponding to the parameter deviation actual value according to the parameter deviation actual value;
according to a preset parameter deviation analysis method, analyzing and processing the actual value of the parameter deviation and the parameter deviation type information to form parameter abnormality analysis result information, and outputting the parameter abnormality analysis result information.
By adopting the technical scheme, the processor and the memory are arranged and connected on the meter body, so that the processor is used for acquiring parameter detection information by adopting an anomaly detection analysis method, calling the parameter detection value by the parameter detection information, judging whether the parameter detection value is positioned in a preset parameter reference interval, analyzing and calculating the deviation value between the parameter detection value and the parameter reference interval and taking the deviation value as a parameter deviation actual value only when the parameter detection value is not positioned in the parameter reference interval, calling the parameter deviation type information by the parameter detection information, analyzing and processing the parameter deviation actual value and the parameter deviation type information by the parameter deviation analysis method to form parameter anomaly analysis result information, and outputting the parameter anomaly analysis result information, so that a professional serviceman can know the anomaly analysis result, and further the professional serviceman can conveniently and rapidly process the anomaly.
Optionally, the analyzing the actual value of the parameter deviation and the information of the type of the parameter deviation according to the preset parameter deviation analyzing method to form the information of the abnormal analysis result of the parameter comprises:
retrieving single type deviation reference information corresponding to the parameter deviation type information according to the parameter deviation type information;
judging whether the parameter deviation type information is only one;
if so, analyzing and acquiring single-type abnormal result information according to the matching result of the parameter deviation actual value and the single-type deviation reference information, and taking the single-type abnormal result information as parameter abnormal analysis result information;
if not, randomly selecting one group of single-type deviation reference information and taking the single-type deviation reference information as reference selection reference information, and taking other groups of single-type deviation reference information as selection reference information;
according to the judging result of whether the standard value consistent with the standard selection reference information exists in the selection reference information or not, taking the consistent standard value as composite type deviation reference information;
and analyzing and acquiring composite type abnormal result information according to the matching result of the parameter deviation actual value and the composite type deviation reference information, and taking the composite type abnormal result information as parameter abnormal analysis result information.
By adopting the technical scheme, the single type deviation reference information is called through the parameter deviation type information, whether the parameter deviation type information is only one is judged, when the parameter deviation type information is only one, the single type abnormal result information is obtained through analysis through the matching result of the parameter deviation actual value and the single type deviation reference information, the single type abnormal result information is taken as the parameter abnormal analysis result information, when the parameter deviation type information is not only one, a group of single type deviation reference information is arbitrarily selected and taken as the reference selection reference information, other groups of single type deviation reference information are taken as the selection reference information, the judging result of whether the reference value consistent with the reference selection reference information exists in the selection reference information is taken as the composite type deviation reference information, the composite type abnormal result information is obtained through analysis through the matching result of the parameter deviation actual value and the composite type deviation reference information, and the composite type abnormal result information is taken as the parameter abnormal analysis result information, and the accuracy of the obtained parameter abnormal analysis result information is improved.
Optionally, the method further comprises the step of continuously acquiring parameter detection information, specifically comprising the following steps:
according to the parameter detection information, calling a power detection value corresponding to the parameter detection information;
judging whether the power detection value is positioned in a preset power reference interval or not;
if yes, processing the parameter detection information according to a preset phasor processing method to form parameter phasor information;
according to the corresponding relation between the parameter phasor information and the preset power factor detection value, analyzing and obtaining the power factor detection value corresponding to the parameter phasor information;
analyzing and acquiring power factor abnormal result information according to a judging result of whether the power factor detection value is in a preset power factor reference interval or not, and outputting the power factor abnormal result information;
if not, analyzing and calculating a difference value between the power detection value and the power reference interval according to the power detection value and the power reference interval, and taking the difference value as a power deviation value;
and analyzing and acquiring power deviation abnormal result information corresponding to the power deviation value according to the corresponding relation between the power deviation value and the preset power deviation abnormal result information, and outputting the power deviation abnormal result information.
By adopting the technical scheme, the power detection value is acquired through the parameter detection information, whether the power detection value is located in a preset power reference interval is judged, when the power detection value is located in the preset power reference interval, the parameter detection information is processed through a phasor processing method to form parameter phasor information, the power factor detection value is obtained through parameter phasor information analysis, the power factor abnormal result information is obtained through analysis through judging whether the power factor detection value is located in the preset power factor reference interval, the power factor abnormal result information is output, when the power detection value is not located in the preset power reference interval, the difference between the power detection value and the power reference interval is calculated and used as a power deviation value, the power deviation abnormal result information is obtained through power deviation value analysis, and the power deviation abnormal result information is output, so that professional maintenance personnel can conveniently know the abnormal analysis result, and professional maintenance personnel can conveniently and rapidly process the abnormal situation.
Optionally, according to a result of determining whether the power factor detection value is within a preset power factor reference interval, analyzing and obtaining abnormal power factor result information includes:
Judging whether the power factor detection value is positioned in a preset power factor reference interval or not;
if yes, analyzing and processing the parameter phasor information according to a preset hexagonal chart acquisition method to form parameter hexagonal chart information;
analyzing and processing parameter hexagonal graph information according to a preset hexagonal graph abnormality analysis method to form hexagonal graph abnormality result information, and outputting the hexagonal graph abnormality result information;
if not, according to the power factor detection value and the power factor reference interval, analyzing and calculating a difference value between the power factor detection value and the power factor reference interval and taking the difference value as a power factor deviation value;
according to the corresponding relation between the power factor deviation value and the preset power factor deviation abnormal result information, analyzing and obtaining the power factor deviation abnormal result information corresponding to the power factor deviation value, and taking the power factor deviation abnormal result information as the power deviation abnormal result information.
By adopting the technical scheme, whether the power factor detection value is located in the preset power factor reference interval or not is judged, when the power factor detection value is located in the preset power factor reference interval, the parameter phasor information is analyzed and processed through a hexagonal graph acquisition method to form parameter hexagonal graph information, the parameter hexagonal graph information is analyzed and processed through a hexagonal graph abnormality analysis method to form hexagonal graph abnormality result information, the hexagonal graph abnormality result information is output, when the power factor detection value is not located in the preset power factor reference interval, the difference between the power factor detection value and the power factor reference interval is analyzed and calculated to be used as a power factor deviation value, the power factor deviation abnormality result information is obtained through power factor deviation value analysis, and the power factor deviation abnormality result information is used as power deviation abnormality result information, so that the accuracy of the obtained power deviation abnormality result information is improved.
Optionally, the analyzing the parameter hexagonal map information according to the preset hexagonal map abnormality analysis method to form hexagonal map abnormality result information includes:
according to the parameter hexagonal chart information, phase voltage image information, line voltage image information and current image information corresponding to the parameter hexagonal chart information are called;
according to the phase voltage image information, analyzing and calculating a phase angle value between adjacent phase voltage image information and taking the phase angle value as a voltage phase sequence value;
judging whether the voltage phase sequence values are equal;
if yes, according to the current image information, analyzing and calculating a phase angle value between adjacent current image information and taking the phase angle value as a current phase sequence value;
analyzing and processing the current phase sequence value according to a preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information, and taking the current phase sequence abnormality result information as hexagonal graph abnormality result information;
if not, analyzing and acquiring the voltage phase sequence abnormal result information corresponding to the voltage phase sequence value according to the corresponding relation between the voltage phase sequence value and the preset voltage phase sequence abnormal result information, and taking the voltage phase sequence abnormal result information as hexagonal graph abnormal result information.
By adopting the technical scheme, the phase voltage image information, the line voltage image information and the current image information are acquired through parameter hexagonal graph information, the phase angle values among adjacent phase voltage image information are analyzed and calculated and used as voltage phase sequence values, whether the values corresponding to the line voltage image information are equal or not is judged, when the phase values are equal, the phase angle values among adjacent current image information are analyzed and calculated and used as current phase sequence values, the current phase sequence abnormal result information is formed by analyzing and processing the current phase sequence values through a current phase sequence abnormal analysis method, the current phase sequence abnormal result information is used as hexagonal graph abnormal result information, when the phase values are not equal, the voltage phase sequence abnormal result information is obtained through voltage phase sequence analysis, and the phase sequence abnormal result information is used as hexagonal graph abnormal result information, so that the accuracy of the obtained hexagonal graph abnormal result information is improved.
Optionally, the analyzing the current phase sequence value according to the preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information includes:
judging whether the current phase sequence value is larger than a preset reverse phase sequence reference value or not;
if yes, outputting current reverse abnormal result information and taking the current reverse abnormal result information as current phase sequence abnormal result information;
if not, judging whether the current phase sequence value is positioned in a preset positive phase sequence reference interval;
if yes, outputting forward abnormal result information and taking the forward abnormal result information as current phase sequence abnormal result information;
if not, according to the current phase sequence value and the forward phase sequence reference interval, analyzing and calculating the difference value between the current phase sequence value and the forward phase sequence reference interval and taking the difference value as the current phase sequence interval deviation value;
according to the corresponding relation between the current phase sequence interval deviation value and the preset current phase sequence deviation abnormal information, analyzing and obtaining the current phase sequence deviation abnormal information corresponding to the current phase sequence interval deviation value, and taking the current phase sequence deviation abnormal information as current phase sequence abnormal result information.
By adopting the technical scheme, whether the current phase sequence value is larger than the preset reverse phase sequence reference value is judged, when the current phase sequence value is larger than the preset reverse phase sequence reference value, current reverse abnormal result information is output and is used as current phase sequence abnormal result information, when the current phase sequence value is not larger than the preset forward phase sequence reference interval, judgment is made whether the current phase sequence value is located in the preset forward phase sequence reference interval, when the current phase sequence value is located in the preset forward phase sequence reference interval, forward abnormal result information is output and is used as current phase sequence abnormal result information, when the current phase sequence value is not located in the preset forward phase sequence reference interval, the difference value between the current phase sequence value and the forward phase sequence reference interval is analyzed and calculated and is used as current phase sequence interval deviation value, current phase sequence deviation abnormal information is obtained through current phase sequence interval deviation value analysis, and the current phase sequence deviation abnormal information is used as current phase sequence abnormal result information, and therefore the accuracy of the obtained current phase sequence abnormal result information is improved.
Optionally, the method further comprises the step of outputting the forward direction abnormal result information as current phase sequence abnormal result information, specifically comprising the following steps:
according to the forward phase sequence reference interval, an interval median value corresponding to the forward phase sequence reference interval is called;
according to the current phase sequence value and the interval median, analyzing and calculating the difference between the current phase sequence value and the interval median and taking the difference as the current phase sequence median deviation value;
judging whether the current phase sequence bit deviation value is smaller than a preset current phase sequence bit reference value or not;
if yes, outputting forward abnormal result information and taking the forward abnormal result information as current phase sequence abnormal result information;
if not, analyzing and acquiring a current phase sequence deviation influence value corresponding to the current phase sequence deviation value according to the corresponding relation between the current phase sequence deviation value and the preset current phase sequence deviation influence value;
according to the corresponding relation between the current phase sequence deviation influence value and the preset current phase sequence deviation adjustment value, analyzing and obtaining the current phase sequence deviation adjustment value corresponding to the current phase sequence deviation influence value, and outputting the current phase sequence deviation adjustment value.
Through adopting above-mentioned technical scheme, retrieve interval median through forward phase sequence benchmark interval, carry out analysis calculation and regard as current phase sequence median deviation value to the difference between current phase sequence value and the interval median, judge whether current phase sequence median deviation value is less than the current phase sequence median benchmark value of predetermineeing, when being less than, output forward no unusual result information and regard as current phase sequence unusual result information, when not being less than, obtain current phase sequence deviation influence value through current phase sequence median deviation analysis, obtain current phase sequence deviation adjustment value through current phase sequence deviation influence value analysis, and output current phase sequence deviation adjustment value, thereby make things convenient for professional maintenance personnel to adjust in advance when knowing current phase sequence deviation adjustment value, and then reduce the probability of taking place the abnormality.
Optionally, the method further comprises the step of following the phase sequence deviation adjustment value of the output current, specifically comprising the following steps:
according to the corresponding relation between the current phase sequence deviation adjustment value and the preset voltage adjustment phase sequence value, analyzing and obtaining the voltage adjustment phase sequence value corresponding to the current phase sequence deviation adjustment value;
according to the voltage adjustment phase sequence value and the voltage phase sequence value, analyzing and calculating a deviation value between the voltage adjustment phase sequence value and the voltage phase sequence value and taking the deviation value as the voltage adjustment phase sequence deviation value;
according to the voltage adjustment phase sequence deviation value and a preset voltage deviation reference interval, analyzing and calculating a deviation value between the voltage adjustment phase sequence deviation value and the voltage deviation reference interval and taking the deviation value as a voltage deviation adjustment value;
according to the corresponding relation between the voltage deviation adjustment value and the preset current deviation correction value, analyzing and obtaining the current deviation correction value corresponding to the voltage deviation adjustment value, and adding the current deviation correction value to the current phase sequence deviation adjustment value to form a new current phase sequence deviation adjustment value.
By adopting the technical scheme, the voltage adjustment phase sequence value is obtained through the analysis of the current phase sequence deviation adjustment value, the deviation value between the voltage adjustment phase sequence value and the voltage phase sequence value is analyzed and calculated and used as the voltage adjustment phase sequence deviation value, the deviation value between the voltage adjustment phase sequence deviation value and the voltage deviation reference interval is analyzed and calculated and used as the voltage deviation adjustment value, the current deviation correction value is obtained through the analysis of the voltage deviation adjustment value, and the current deviation correction value is added to the current phase sequence deviation adjustment value to form a new current phase sequence deviation adjustment value, so that the accuracy of the obtained current phase sequence deviation adjustment value is improved.
Optionally, the method further comprises the step of taking the current phase sequence abnormal result information as the hexagonal graph abnormal result information or taking the phase sequence abnormal result information as the hexagonal graph abnormal result information, which is specifically as follows:
according to the corresponding relation between the abnormal result information of the hexagonal map and the preset correct result information of the hexagonal map, analyzing and obtaining the correct result information of the hexagonal map corresponding to the abnormal result information of the hexagonal map;
according to the corresponding relation between the correct result information of the hexagonal diagram and the preset correct wiring power value, analyzing and obtaining the correct wiring power value corresponding to the correct result information of the hexagonal diagram;
and analyzing and obtaining correction rate detection values corresponding to the correct wiring power value, the power detection value and the power factor detection value according to the corresponding relation between the correct wiring power value, the power detection value and the power factor detection value and the preset correction rate detection value, and outputting the correction rate detection value.
By adopting the technical scheme, the correct result information of the hexagonal map is obtained through the analysis of the abnormal result information of the hexagonal map, the correct wiring power value corresponding to the correct result information of the hexagonal map is obtained through the analysis of the abnormal result information of the hexagonal map, the power detection value is obtained through the analysis of the abnormal result information of the hexagonal map, the correction rate detection value is obtained through the analysis of the correct wiring power value, the power detection value and the power factor detection value, and the correction rate detection value is output, so that a professional serviceman can conveniently know the correction rate detection value, and the professional serviceman can conveniently process the abnormal situation.
Optionally, the method further comprises the step of outputting the correction rate detection value, specifically as follows:
according to the corresponding relation between the correction rate detection value and the preset correction coefficient value, analyzing and obtaining the correction coefficient value corresponding to the correction rate detection value;
calling a measured electricity value corresponding to the parameter detection information according to the parameter detection information;
and analyzing and obtaining the compensation electric quantity value corresponding to the correction coefficient value and the calculated electric quantity value according to the corresponding relation between the correction coefficient value, the calculated electric quantity value and the preset compensation electric quantity value, and outputting the compensation electric quantity value.
Through adopting above-mentioned technical scheme, obtain correction coefficient value through correction rate detected value analysis, retrieve through parameter detection information to the electric quantity value that has already been counted, obtain the electric quantity value that moves back through correction coefficient value and electric quantity value analysis that has already been counted to output moves back the electric quantity value that moves back, thereby make things convenient for professional maintenance personnel to know moving back the electric quantity value that moves back.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps that a processor and a memory are arranged and connected on a meter body, so that parameter detection information is acquired through the processor by adopting an anomaly detection analysis method, parameter detection values are acquired through the parameter detection information, whether the parameter detection values are located in a preset parameter reference interval or not is judged, only when the parameter detection values are not located in the parameter reference interval, deviation values between the parameter detection values and the parameter reference interval are analyzed and calculated and used as parameter deviation actual values, parameter deviation type information is acquired through the parameter detection information, the parameter deviation actual values and the parameter deviation type information are analyzed and processed through the parameter deviation analysis method to form parameter anomaly analysis result information, and parameter anomaly analysis result information is output, so that professional maintenance personnel can know the anomaly analysis result, and further the professional maintenance personnel can conveniently and rapidly process anomalies;
2. The method comprises the steps of calling single type deviation reference information through parameter deviation type information, judging whether the parameter deviation type information is only one, analyzing and obtaining single type abnormal result information through a matching result of a parameter deviation actual value and the single type deviation reference information when the parameter deviation type information is only one, taking the single type abnormal result information as parameter abnormal analysis result information, randomly selecting one group of single type deviation reference information and taking the single type abnormal result information as reference selection reference information when the parameter deviation type information is not only one, taking other groups of single type deviation reference information as selection reference information, taking the consistent reference value as composite type deviation reference information through a judging result of whether the reference selection reference information exists or not and the standard value consistent with the reference selection reference information, analyzing and obtaining the composite type abnormal result information through a matching result of a parameter deviation actual value and the composite type deviation reference information, and taking the composite type abnormal result information as parameter abnormal analysis result information, and improving accuracy of the obtained parameter abnormal analysis result information;
3. the method comprises the steps of calling a power detection value through parameter detection information, judging whether the power detection value is located in a preset power reference interval or not, processing the parameter detection information through a phasor processing method when the power detection value is located in the preset power reference interval to form parameter phasor information, analyzing and obtaining a power factor detection value through the parameter phasor information, analyzing and obtaining power factor abnormal result information through a judging result of whether the power factor detection value is located in the preset power factor reference interval or not, outputting the power factor abnormal result information, analyzing and calculating a difference value between the power detection value and the power reference interval and taking the difference value as a power deviation value when the power detection value is not located in the preset power reference interval, analyzing and obtaining the power deviation abnormal result information through the power deviation value, and outputting the power deviation abnormal result information, so that professional maintenance personnel can know an abnormal analysis result conveniently, and further, the professional maintenance personnel can process abnormal situations conveniently and rapidly.
Drawings
Fig. 1 is a schematic structural diagram of a three-phase three-wire electric energy meter with an abnormality detection function according to an embodiment of the present application.
Fig. 2 is a flowchart of a method of a three-phase three-wire electric energy meter with an abnormality detection function according to an embodiment of the present application.
FIG. 3 is a flowchart of a method for analyzing actual values of parameter deviations and information about types of parameter deviations according to a preset parameter deviation analysis method to form information about analysis results of abnormal parameters according to an embodiment of the present application.
Fig. 4 is a flowchart of a method of steps following the continued acquisition of parameter detection information in accordance with an embodiment of the present application.
Fig. 5 is a flowchart of a method for analyzing and obtaining abnormal power factor result information according to a determination result of whether a power factor detection value is within a preset power factor reference interval according to an embodiment of the present application.
Fig. 6 is a flowchart of a method for analyzing and processing parameter hexagonal chart information to form hexagonal chart abnormal result information according to a preset hexagonal chart abnormal analysis method according to an embodiment of the application.
Fig. 7 is a flowchart of a method for analyzing and processing current phase sequence values according to a preset current phase sequence anomaly analysis method to form current phase sequence anomaly result information according to an embodiment of the present application.
FIG. 8 is a flowchart of a method of steps preceding outputting forward direction no-anomaly result information as current phase sequence anomaly result information in accordance with an embodiment of the present application.
Fig. 9 is a flowchart of a method of steps following an output current phase sequence deviation adjustment value according to an embodiment of the present application.
Fig. 10 is a flowchart of a method of an embodiment of the present application following a current phase sequence anomaly result information as hexagonal map anomaly result information or following a phase sequence anomaly result information as hexagonal map anomaly result information.
FIG. 11 is a flowchart illustrating a method for outputting a correction rate detection value according to an embodiment of the present application.
Reference numerals illustrate: 1. a watch body; 2. a memory; 3. a processor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings 1 to 11 and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The embodiment of the application discloses a three-phase three-wire electric energy meter with an abnormality detection function.
Referring to fig. 1, a three-phase three-wire electric energy meter with an abnormality detection function includes a meter body 1, a memory 2 for storing a preset abnormality detection analysis method, and a processor 3, the processor 3 being connected with the meter body 1 to acquire parameter detection information in the meter body 1, and the processor 3 being connected with the memory 2 to analyze the parameter detection information by the abnormality detection analysis method and output parameter abnormality analysis result information.
Referring to fig. 2, the abnormality detection analysis method includes:
step S100, obtaining parameter detection information.
The parameter detection information refers to detection information of each parameter when the table body 1 is used, and the parameter detection information is obtained through detection when the table body 1 is used.
Step S200, retrieving the parameter detection value corresponding to the parameter detection information according to the parameter detection information.
The parameter detection values refer to detection values of various parameters when the table body 1 is used, the definition parameter detection values comprise voltage detection values and current detection values, and the parameter detection values are obtained by inquiring a database storing the parameter detection values. The parameter detection value is called through the parameter detection information, so that the subsequent use of the parameter detection value is facilitated.
Step S300, judging whether the parameter detection value is located in a preset parameter reference interval. If yes, go to step S400; if not, step S500 is performed.
The parameter reference section is a reference section in which the current or voltage parameter is located when the table body 1 is used, and is obtained by searching a database in which the parameter reference section is stored. And judging whether the parameter detection value is in a preset parameter reference interval or not, so as to judge whether the current or voltage parameter of the meter body 1 is abnormal or not in use.
Step S400, the parameter detection information is continuously acquired.
When the parameter detection value is within the preset parameter reference interval, it indicates that there is no abnormality in the current or voltage parameter of the table body 1 when in use at this time, so that the parameter detection information is continuously acquired.
Step S500, according to the parameter detection value and a preset parameter reference interval, analyzing and calculating a deviation value between the parameter detection value and the parameter reference interval and taking the deviation value as an actual parameter deviation value.
The actual parameter deviation value refers to an actual deviation value when the current or voltage parameter deviates when the table 1 is used. When the parameter detection value is not located in the preset parameter reference interval, it is indicated that the current or voltage parameter of the meter body 1 is abnormal when the meter is used, so that the deviation value between the parameter detection value and the parameter reference interval is analyzed and calculated through the parameter detection value and the preset parameter reference interval, and the deviation value between the parameter detection value and the parameter reference interval is used as the actual parameter deviation value, thereby being convenient for the subsequent use of the actual parameter deviation value.
Step S600, retrieving parameter deviation type information corresponding to the parameter deviation actual value according to the parameter deviation actual value.
The parameter deviation type information refers to parameter type information corresponding to when the current or voltage parameter deviates when the table body 1 is used, and the parameter deviation type information is obtained by inquiring from a database storing the parameter deviation type information. And the parameter deviation type information is called through the parameter deviation actual value, so that the subsequent use of the parameter deviation type information is convenient.
Step S700, according to the preset parameter deviation analysis method, analyzing the actual value of the parameter deviation and the parameter deviation type information to form parameter abnormality analysis result information, and outputting the parameter abnormality analysis result information.
The parameter anomaly analysis result information refers to result information after analysis when the table body 1 is in anomaly during use, and is obtained by inquiring a database storing the parameter anomaly analysis result information. The parameter deviation analysis method is an analysis method for analyzing when there is a parameter deviation in the use of the body 1, and is obtained by searching a database in which the parameter deviation analysis method is stored.
The parameter deviation actual value and the parameter deviation type information are analyzed and processed through the parameter deviation analysis method, so that parameter abnormality analysis result information is formed, parameter abnormality analysis result information is output, and therefore professional maintenance personnel can know the abnormality analysis result, and further convenience is brought to the professional maintenance personnel to rapidly process the abnormality.
In step S700 shown in fig. 2, in order to further secure the rationality of the parameter anomaly analysis result information, further individual analysis calculation of the parameter anomaly analysis result information is required, and specifically, the detailed description will be given by the steps shown in fig. 3.
Referring to fig. 3, according to a preset parameter deviation analysis method, the method for analyzing the actual value of the parameter deviation and the parameter deviation type information to form the parameter anomaly analysis result information includes the following steps:
step S710, retrieving single type deviation reference information corresponding to the parameter deviation type information according to the parameter deviation type information.
The single-type deviation reference information refers to reference information corresponding to a deviation of a single type of current or voltage parameter when the table body 1 is in use, and is obtained by searching a database storing single-type deviation reference information. The single type deviation reference information is called through the parameter deviation type information, so that the single type deviation reference information can be conveniently used later.
In step S720, it is determined whether the parameter deviation type information is only one. If yes, go to step S730; if not, step S740 is performed.
Wherein, by judging whether the parameter deviation type information is only one, whether only a single type exists or not is judged.
Step S730, analyzing and obtaining single-kind abnormal result information according to the matching result of the parameter deviation actual value and the single-kind deviation reference information, and taking the single-kind abnormal result information as the parameter abnormal analysis result information.
The single-type abnormal result information refers to abnormal result information when a single type has deviation. When the parameter deviation type information is only one, the fact that only a single type exists at the moment is indicated, so that through the matching result of the parameter deviation actual value and the single type deviation reference information, the abnormal result information corresponding to the condition that the parameter deviation actual value is consistent with the single type deviation reference information is taken as the single type abnormal result information, the single type abnormal result information is analyzed and obtained, the single type abnormal result information is taken as the parameter abnormal analysis result information, and the accuracy of the obtained parameter abnormal analysis result information is improved.
In step S740, a group of single-kind deviation reference information is arbitrarily selected and used as the reference selection reference information, and other groups of single-kind deviation reference information are used as the selection reference information.
When the parameter deviation type information is not only one, it is indicated that there is deviation of a single type at this time, so that a group of single type deviation reference information is arbitrarily selected and used as reference selection reference information, and other groups of single type deviation reference information are used as selection reference information, thereby facilitating subsequent use of the reference selection reference information and the selection reference information.
Step S750, based on the determination result of whether or not the reference value matching the reference selection reference information exists in the selection reference information, the matching reference value is used as the composite type deviation reference information.
The method comprises the steps of judging whether the reference value which is consistent with the reference selection reference information exists in the selection reference information or not, and taking the consistent reference value as composite type deviation reference information when the reference value which is consistent with the reference selection reference information exists in the selection reference information, so that the composite type deviation reference information can be conveniently used later.
Step S760, according to the matching result of the actual parameter deviation value and the composite type deviation reference information, analyzing and obtaining composite type abnormal result information, and taking the composite type abnormal result information as parameter abnormal analysis result information.
The composite type abnormality result information is abnormality result information when a plurality of types have deviations. And according to the matching result of the parameter deviation actual value and the composite type deviation reference information, the abnormal result information corresponding to the parameter deviation actual value and the composite type deviation reference information is used as the composite type abnormal result information, so that the composite type abnormal result information is analyzed and obtained, and the composite type abnormal result information is used as the parameter abnormal analysis result information, so that the accuracy of the obtained parameter abnormal analysis result information is improved.
After step S400 shown in fig. 1, in order to further ensure the rationality after continuing to acquire the parameter detection information, further individual analysis calculation is required after continuing to acquire the parameter detection information, specifically, the steps shown in fig. 4 are described in detail.
Referring to fig. 4, the steps after continuing to acquire the parameter detection information include the steps of:
step S410, retrieving the power detection value corresponding to the parameter detection information according to the parameter detection information.
The power detection value is a detection value of power when the table body 1 is in use, and the power detection value is obtained by searching a database storing the power detection value. The power detection value is called through the parameter detection information, so that the subsequent use of the power detection value is facilitated.
Step S420, judging whether the power detection value is located in a preset power reference interval. If yes, go to step S430; if not, step S460 is performed.
The power reference section is a reference section where the power of the table body 1 is located when in use, and is obtained by searching a database storing the power reference section. By judging whether the power detection value is within a preset power reference interval, whether the detected power of the table body 1 is abnormal or not is judged.
Step S430, processing the parameter detection information according to the preset phasor processing method to form parameter phasor information.
The phasor processing method is a processing method for converting a detected value of a parameter into a phasor, and the phasor processing method is obtained by querying a database storing the phasor processing method. The parameter phasor information is phasor information obtained by converting a detection value of a parameter into phasors, and when the power detection value is located in a preset power reference interval, it is indicated that the detected power of the table body 1 is not abnormal when in use, so that the parameter detection information is processed by a phasor processing method, thereby forming the parameter phasor information, and facilitating subsequent use of the parameter phasor information.
Step S440, according to the corresponding relation between the parameter phasor information and the preset power factor detection value, analyzing and obtaining the power factor detection value corresponding to the parameter phasor information.
The power factor detection value refers to a detection value of a power factor angle when the table body 1 is used, and the power factor detection value is obtained by inquiring a database storing the power factor detection value. And the power factor detection value is obtained through parameter phasor information analysis, so that the subsequent use of the power factor detection value is facilitated.
Step S450, analyzing and obtaining abnormal power factor result information according to the judging result of whether the power factor detection value is in the preset power factor reference interval, and outputting the abnormal power factor result information.
The reference section of the power factor refers to the reference section in which the power factor angle is located when the table body 1 is used, and the reference section of the power factor is obtained by searching from a database storing the reference section of the power factor. The power factor abnormality result information is abnormality result information corresponding to the presence of abnormality in the power factor angle when the table body 1 is used. And analyzing and acquiring power factor abnormal result information and outputting the power factor abnormal result information according to a judging result that whether the power factor detection value is positioned in a preset power factor reference interval or not, so that professional maintenance personnel can know an abnormal analysis result, and further, the professional maintenance personnel can conveniently and rapidly process abnormal conditions.
Step S460, according to the power detection value and the power reference interval, analyzing and calculating the difference between the power detection value and the power reference interval as a power deviation value.
The power deviation value refers to a deviation value when abnormality exists in the detected power when the table body 1 is used. When the power detection value is not located in the preset power reference interval, it is indicated that the detected power is abnormal when the table body 1 is used, so that the difference between the power detection value and the power reference interval is analyzed and calculated through the power detection value and the power reference interval, and the difference between the power detection value and the power reference interval is used as a power deviation value, and the subsequent use of the power deviation value is facilitated.
Step S470, according to the corresponding relation between the power deviation value and the preset power deviation abnormal result information, analyzing and obtaining the power deviation abnormal result information corresponding to the power deviation value, and outputting the power deviation abnormal result information.
The power deviation abnormal result information refers to abnormal result information corresponding to the abnormal condition of the detected power when the table body 1 is in use, and the power deviation abnormal result information is obtained by inquiring from a database storing the power deviation abnormal result information. The power deviation abnormal result information is obtained through power deviation value analysis, and the power deviation abnormal result information is output, so that professional maintenance personnel can know the abnormal analysis result, and further, the professional maintenance personnel can conveniently and rapidly process the abnormal situation.
In step S450 shown in fig. 4, in order to further ensure the rationality of the power factor abnormality result information, further individual analysis calculation of the power factor abnormality result information is required, specifically, the detailed description will be given by the steps shown in fig. 5.
Referring to fig. 5, according to a determination result of whether the power factor detection value is within a preset power factor reference interval, analyzing and acquiring power factor abnormality result information includes the steps of:
in step S451, it is determined whether the power factor detection value is within a preset power factor reference interval. If yes, go to step S452; if not, then step S454 is performed.
Whether the power factor angle of the table body 1 is abnormal or not is judged by judging whether the power factor detection value is located in a preset power factor reference section or not.
Step S452, analyzing and processing the parameter phasor information according to a preset hexagonal chart acquisition method to form parameter hexagonal chart information.
The hexagonal graph acquisition method is an acquisition method for drawing a hexagonal graph of a parameter phasor, and is obtained by inquiring a database storing the hexagonal graph acquisition method. The parameter hexagonal map information is information obtained after parameter hexagonal map drawing, and when the power factor detection value is located in a preset power factor reference interval, it is indicated that no abnormality exists in the power factor angle when the table body 1 is used, so that parameter phasor information is analyzed and processed through a hexagonal map acquisition method, and accordingly parameter hexagonal map information is formed, and subsequent use of the parameter hexagonal map information is facilitated.
Step S453, according to the preset hexagonal map abnormality analysis method, parameter hexagonal map information is analyzed to form hexagonal map abnormality result information, and the hexagonal map abnormality result information is output.
The hexagonal graph abnormality analysis method is an analysis method for when abnormality exists in a hexagonal graph, and is obtained by inquiring a database storing the hexagonal graph abnormality analysis method. The hexagonal map abnormality result information is abnormality result information when there is an abnormality in the hexagonal map.
The parameter hexagonal map information is analyzed and processed through the hexagonal map abnormality analysis method, so that hexagonal map abnormality result information is formed, and hexagonal map abnormality result information is output, so that professional maintenance personnel can know the abnormality analysis result, and further the professional maintenance personnel can conveniently and rapidly process abnormal conditions.
Step S454, according to the power factor detection value and the power factor reference interval, analyzing and calculating the difference between the power factor detection value and the power factor reference interval as a power factor deviation value.
The power factor deviation value refers to a deviation value when the power factor angle of the table 1 is deviated when in use. When the power factor detection value is not located in the preset power factor reference interval, it is indicated that the power factor angle when the table body 1 is used is abnormal, so that the difference between the power factor detection value and the power factor reference interval is analyzed and calculated through the power factor detection value and the power factor reference interval, and the difference between the power factor detection value and the power factor reference interval is used as a power factor deviation value, thereby facilitating the subsequent use of the power factor deviation value.
Step S455, according to the correspondence between the power factor deviation value and the preset power factor deviation abnormal result information, analyzing and obtaining the power factor deviation abnormal result information corresponding to the power factor deviation value, and taking the power factor deviation abnormal result information as the power deviation abnormal result information.
The abnormal power factor deviation result information refers to abnormal result information corresponding to the power factor angle deviation when the table body 1 is used, and the abnormal power factor deviation result information is obtained by inquiring a database storing the abnormal power factor deviation result information. And acquiring power factor deviation abnormal result information through power factor deviation value analysis, and taking the power factor deviation abnormal result information as power deviation abnormal result information, thereby improving the accuracy of the acquired power deviation abnormal result information.
In step S453 shown in fig. 5, in order to further secure the rationality of the hexagonal map abnormality result information, further individual analysis calculation of the hexagonal map abnormality result information is required, and specifically, the detailed description will be given by the steps shown in fig. 6.
Referring to fig. 6, according to a preset hexagonal map abnormality analysis method, to analyze and process parameter hexagonal map information to form hexagonal map abnormality result information includes the steps of:
In step S4531, phase voltage image information, line voltage image information, and current image information corresponding to the parameter hexagonal map information are retrieved according to the parameter hexagonal map information.
The phase voltage image information refers to phasor image information corresponding to the phase voltage, and the phase voltage image information is obtained by inquiring from a database storing the phase voltage image information. The line voltage image information refers to phasor image information corresponding to line voltage, and the line voltage image information is obtained by inquiring from a database storing line voltage image information. The current image information refers to phasor image information corresponding to the current, and the current image information is obtained by inquiring from a database storing the current image information. The phase voltage image information, the line voltage image information and the current image information are called through the parameter hexagonal chart information, so that the phase voltage image information, the line voltage image information and the current image information are convenient to use subsequently.
Step S4532, analyzing and calculating phase angle values between adjacent phase voltage image information as voltage phase sequence values according to the phase voltage image information.
The voltage phase sequence value refers to a phase angle value between adjacent phase voltage phasors, and the phase angle value between the adjacent phase voltage image information is analyzed and calculated through the phase voltage image information and the line voltage image information and is used as the voltage phase sequence value, so that the subsequent use of the voltage phase sequence value is convenient.
Step S4533, determining whether the voltage phase sequence values are equal. If yes, go to step S4534; if not, step S4536 is performed.
And judging whether the voltage phase sequence values are equal or not, so as to judge whether any two adjacent phase voltages are abnormal or not.
Step S4534, analyzing and calculating phase angle values between adjacent current image information as current phase sequence values according to the current image information.
The current phase sequence value refers to a phase angle value between adjacent current phasors. When the voltage phase sequence values are equal, the fact that no abnormality exists in any two adjacent phase voltages at the moment is indicated, so that the phase angle value between the adjacent current image information is analyzed and calculated and used as the current phase sequence value, and the current phase sequence value is convenient to use subsequently.
Step S4535, analyzing the current phase sequence value according to a preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information, and taking the current phase sequence abnormality result information as hexagonal graph abnormality result information.
The current phase sequence abnormality analysis method is an analysis method for analyzing an abnormality result when the current phase sequence value is abnormal, and the current phase sequence abnormality analysis method is inquired or stored in a database of the current phase sequence abnormality analysis method. The abnormal current phase sequence result information refers to abnormal result information corresponding to the abnormal current phase sequence value.
And analyzing and processing the current phase sequence value through a current phase sequence abnormality analysis method so as to form current phase sequence abnormality result information, and taking the current phase sequence abnormality result information as hexagonal graph abnormality result information, thereby improving the accuracy of the obtained hexagonal graph abnormality result information.
Step S4536, analyzing and obtaining the abnormal voltage phase sequence result information corresponding to the voltage phase sequence value according to the corresponding relation between the voltage phase sequence value and the preset abnormal voltage phase sequence result information, and taking the abnormal voltage phase sequence result information as the abnormal hexagonal graph result information.
The abnormal voltage phase sequence result information refers to abnormal result information corresponding to abnormal voltage phase sequence values. The abnormal voltage phase sequence result information is obtained by inquiring a database storing the abnormal voltage phase sequence result information.
When the voltage phase sequence values are not equal, the condition that the voltages of any two adjacent phases are abnormal is indicated, so that voltage phase sequence abnormal result information is obtained through voltage phase sequence value analysis, and the phase sequence abnormal result information is used as hexagonal graph abnormal result information, and the accuracy of the obtained hexagonal graph abnormal result information is improved.
In step S4535 shown in fig. 6, in order to further secure the rationality of the current phase sequence abnormality result information, further individual analysis calculation of the current phase sequence abnormality result information is required, and specifically, the detailed description will be given by the steps shown in fig. 7.
Referring to fig. 7, the method for analyzing the current phase sequence value according to the preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information includes the following steps:
in step S45351, it is determined whether the current phase sequence value is greater than a preset reverse phase sequence reference value. If yes, go to step S45352; if not, step S45353 is performed.
The reverse phase sequence reference value refers to a phase sequence reference value when the current phasor has a reverse condition, and the reverse phase sequence reference value is obtained by inquiring a database storing the reverse phase sequence reference value.
And judging whether the current phase sequence value is larger than a preset reverse phase sequence reference value or not, so as to judge whether the current phasor has a reverse condition or not.
Step S45352, outputting the current reverse abnormality result information as current phase sequence abnormality result information.
The current reverse abnormal result information refers to abnormal result information corresponding to the current phasor under the reverse condition, and is obtained by inquiring a database storing the current reverse abnormal result information. When the current phase sequence value is larger than a preset reverse phase sequence reference value, the current phase quantity is indicated to have a reverse condition, so that current reverse abnormal result information is output and used as current phase sequence abnormal result information, and the accuracy of the obtained current phase sequence abnormal result information is improved.
Step S45353, determining whether the current phase sequence value is within a preset positive phase sequence reference interval. If yes, go to step S45354; if not, step S45355 is performed.
The positive phase sequence reference interval refers to a reference interval when the current phasor is positive, and the positive phase sequence reference interval is obtained by inquiring a database storing the positive phase sequence reference interval.
And judging whether the current phase sequence value is in a preset forward phase sequence reference interval or not, so as to judge whether the current phasor is abnormal or not.
Step S45354 outputs the forward direction no-anomaly result information as current phase sequence anomaly result information.
The forward direction no-abnormal result information is abnormal result information for indicating that the current phasors are forward direction no-abnormal, and the forward direction no-abnormal result information is obtained by inquiring a database storing the forward direction no-abnormal result information.
When the current phase sequence value is positioned in a preset forward phase sequence reference interval, the current phase quantity is not abnormal, so that forward abnormal-free result information is output and used as current phase sequence abnormal result information, and the accuracy of the obtained current phase sequence abnormal result information is improved.
Step S45355, analyzing and calculating the difference between the current phase sequence value and the forward phase sequence reference interval according to the current phase sequence value and the forward phase sequence reference interval, and using the difference as the current phase sequence interval deviation value.
The current phase sequence interval deviation value refers to a deviation value when the current phase sequence deviation exists in the current phase sequence, and when the current phase sequence value is not located in a preset positive phase sequence reference interval, the current phase sequence is abnormal, so that the difference value between the current phase sequence value and the positive phase sequence reference interval is analyzed and calculated through the current phase sequence value and the positive phase sequence reference interval and is used as the current phase sequence interval deviation value, and the current phase sequence interval deviation value is conveniently used later.
Step S45356, analyzing and obtaining current phase sequence deviation abnormal information corresponding to the current phase sequence interval deviation value according to the corresponding relation between the current phase sequence interval deviation value and the preset current phase sequence deviation abnormal information, and taking the current phase sequence deviation abnormal information as current phase sequence abnormal result information.
The current phase sequence deviation abnormal information refers to abnormal result information corresponding to the current phase quantity when the current phase sequence deviation exists, and the current phase sequence deviation abnormal information is obtained by inquiring a database storing the current phase sequence deviation abnormal information. And obtaining current phase sequence deviation abnormal information through current phase sequence interval deviation value analysis, and taking the current phase sequence deviation abnormal information as current phase sequence abnormal result information, thereby improving the accuracy of the obtained current phase sequence abnormal result information.
Before step S45354 shown in fig. 7, in order to further ensure the rationality of the current phase sequence abnormality result information, it is necessary to perform further separate analysis and calculation before outputting the forward direction no-abnormality result information as the current phase sequence abnormality result information, specifically, the detailed description will be given by the steps shown in fig. 8.
Referring to fig. 8, the steps preceding the output of the forward direction no-anomaly result information as current phase sequence anomaly result information include the steps of:
in step S453541, the interval median corresponding to the positive phase sequence reference interval is retrieved according to the positive phase sequence reference interval.
The interval median refers to the median of the reference interval when the current phasor is in the forward direction, and the interval median is obtained by searching a database storing the interval median. And the interval median is called through the forward phase sequence reference interval, so that the interval median can be conveniently used subsequently.
Step S453542, analyzing and calculating the difference between the current phase sequence value and the interval median according to the current phase sequence value and the interval median, and taking the difference as the current phase sequence median deviation value.
The current phase sequence median deviation value refers to a deviation value between the current phasor and the interval median, and the difference value between the current phase sequence value and the interval median is analyzed and calculated through the current phase sequence value and the interval median and is used as the current phase sequence median deviation value, so that the subsequent use of the current phase sequence median deviation value is facilitated.
In step S453543, it is determined whether the current phase sequence bit deviation value is smaller than a preset current phase sequence bit reference value. If yes, go to step S453544; if not, step S453545 is performed.
The current phase sequence median reference value refers to a reference deviation value when deviation exists between the current phasor and the interval median, and the current phase sequence median reference value is obtained by inquiring a database storing the current phase sequence median reference value. And judging whether the current phasor has a trend of tending to abnormality or not by judging whether the current phase sequence bit deviation value is smaller than a preset current phase sequence bit reference value or not.
Step S453544, the jump proceeds to step S45354.
When the current phase sequence deviation value is smaller than the preset current phase sequence median reference value, it is indicated that there is no trend of abnormality trend in the current phase quantity at this time, so step S45354 is skipped.
Step S453545, analyzing and obtaining a current phase sequence deviation influencing value corresponding to the current phase sequence deviation value according to the corresponding relation between the current phase sequence deviation value and the preset current phase sequence deviation influencing value.
The current phase sequence deviation influence value refers to an influence value when deviation exists between the current phasor and the interval median, and the current phase sequence deviation influence value is obtained by inquiring a database storing the current phase sequence deviation influence value.
When the current phase sequence deviation value is not smaller than the preset current phase sequence reference value, the current phase quantity tends to be abnormal, so that the current phase sequence deviation influence value is obtained through analysis of the current phase sequence deviation value, and the current phase sequence deviation influence value is convenient to use subsequently.
Step S453546, analyzing and obtaining a current phase sequence deviation adjustment value corresponding to the current phase sequence deviation influence value according to the correspondence between the current phase sequence deviation influence value and the preset current phase sequence deviation adjustment value, and outputting the current phase sequence deviation adjustment value.
The current phase sequence deviation adjusting value refers to an adjusting value when deviation exists between the current phasor and the interval median, and the current phase sequence deviation adjusting value is obtained by inquiring a database storing the current phase sequence deviation adjusting value. The current phase sequence deviation adjusting value is obtained through analysis of the current phase sequence deviation influencing value, and the current phase sequence deviation adjusting value is output, so that professional maintenance personnel can adjust according to the current phase sequence deviation adjusting value, and the meter body 1 is easy to be abnormal.
Before step S453546 shown in fig. 8, in order to further ensure the rationality of the current phase sequence deviation adjustment value, further separate analysis and calculation of the output current phase sequence deviation adjustment value is required, specifically, the steps shown in fig. 9 will be described in detail.
Referring to fig. 9, the steps following the output current phase sequence deviation adjustment value include the steps of:
step S4535461, analyzing and obtaining a voltage-adjusted phase sequence value corresponding to the current phase sequence deviation adjustment value according to the corresponding relation between the current phase sequence deviation adjustment value and the preset voltage-adjusted phase sequence value.
The voltage adjustment phase sequence value refers to a phase sequence value of the voltage phasor after adjustment corresponding to the current phase sequence deviation adjustment value, and the voltage adjustment phase sequence value is obtained by inquiring from a database storing the voltage adjustment phase sequence value. The voltage adjustment phase sequence value is obtained through analysis of the current phase sequence deviation adjustment value, so that the voltage adjustment phase sequence value can be conveniently used subsequently.
Step S4535462, analyzing and calculating the deviation value between the voltage phase sequence value and the voltage phase sequence value according to the voltage phase sequence value and the voltage phase sequence value, and using the deviation value as the voltage phase sequence deviation value.
The voltage adjustment phase sequence deviation value refers to an actual deviation value generated by the adjusted voltage phasor corresponding to the current phase sequence deviation adjustment value. And analyzing and calculating the deviation value between the voltage adjustment phase sequence value and the voltage phase sequence value through the voltage adjustment phase sequence value and the voltage phase sequence value, and taking the deviation value as the voltage adjustment phase sequence deviation value, thereby facilitating the subsequent use of the voltage adjustment phase sequence deviation value.
Step S4535463, analyzing and calculating a deviation value between the voltage-adjusted phase sequence deviation value and the voltage deviation reference interval according to the voltage-adjusted phase sequence deviation value and the preset voltage deviation reference interval, and using the deviation value as the voltage deviation adjustment value.
The voltage deviation reference section refers to a deviation reference section when a deviation value is generated by the voltage phasor after the current is subjected to the adjustment corresponding to the current phase sequence deviation adjustment value, and the voltage deviation reference section is obtained by inquiring a database storing the voltage deviation reference section.
And analyzing and calculating the deviation value between the voltage adjustment phase sequence deviation value and the voltage deviation reference interval through the voltage adjustment phase sequence deviation value and the preset voltage deviation reference interval, and taking the deviation value as a voltage deviation adjustment value, so that the subsequent use of the voltage deviation adjustment value is convenient.
Step S4535464, analyzing and obtaining a current deviation correction value corresponding to the voltage deviation adjustment value according to the correspondence between the voltage deviation adjustment value and the preset current deviation correction value, and adding the current deviation correction value to the current phase sequence deviation adjustment value to form a new current phase sequence deviation adjustment value.
The current deviation correction value is a correction value for further correcting the current, and is obtained by searching a database storing the current deviation correction value.
And analyzing the voltage deviation adjustment value to obtain a current deviation correction value, and adding the current deviation correction value to the current phase sequence deviation adjustment value to form a new current phase sequence deviation adjustment value, so that the accuracy of the obtained current phase sequence deviation adjustment value is improved.
After step S4535 or step S4536 shown in fig. 6, in order to further secure the rationality of the hexagonal map abnormality result information, it is necessary to perform further individual analysis and calculation after the current phase sequence abnormality result information is regarded as the hexagonal map abnormality result information or after the phase sequence abnormality result information is regarded as the hexagonal map abnormality result information, specifically, the steps shown in fig. 10 will be described in detail.
Referring to fig. 10, the steps after taking current phase sequence abnormality result information as hexagonal map abnormality result information or phase sequence abnormality result information as hexagonal map abnormality result information include the steps of:
step S45361, analyzing and obtaining the hexagonal map correct result information corresponding to the hexagonal map abnormal result information according to the corresponding relationship between the hexagonal map abnormal result information and the preset hexagonal map correct result information.
The hexagonal graph correct result information refers to correct result information corresponding to the situation that no abnormality occurs in the hexagonal graph, and the hexagonal graph correct result information is obtained by inquiring a database storing the hexagonal graph correct result information. And obtaining the correct result information of the hexagonal map through analysis of the abnormal result information of the hexagonal map, so that the subsequent use of the correct result information of the hexagonal map is facilitated.
Step S45362, analyzing and obtaining the correct wiring power value corresponding to the correct result information of the hexagonal map according to the corresponding relation between the correct result information of the hexagonal map and the preset correct wiring power value.
The correct wiring power value refers to a power value corresponding to the situation of correct wiring of the table body 1, and the correct wiring power value is obtained by inquiring a database storing the correct wiring power value. And the correct wiring power value is obtained through the analysis of the correct result information of the hexagonal diagram, so that the subsequent use of the correct wiring power value is convenient.
Step S45363, analyzing and obtaining correction rate detection values corresponding to the correct wiring power value, the power detection value and the power factor detection value according to the corresponding relation between the correct wiring power value, the power detection value and the power factor detection value and the preset correction rate detection value, and outputting the correction rate detection value.
The correction rate detection value refers to a correction rate that is required to be corrected when the table body 1 is abnormal, and is obtained by searching a database storing the correction rate detection value. The correction rate detection value is obtained through analysis of the correct wiring power value, the power detection value and the power factor detection value, and the correction rate detection value is output, so that a professional maintenance person can know the correction rate detection value, and the professional maintenance person can conveniently and rapidly process abnormal conditions.
In order to further secure the rationality of the correction rate detection value after step S45364 shown in fig. 10, further separate analysis and calculation is required after outputting the correction rate detection value, specifically, the steps shown in fig. 11 will be described in detail.
Referring to fig. 11, the steps after outputting the correction rate detection value include the steps of:
in step S453641, according to the correspondence between the detected correction rate value and the preset correction coefficient value, the correction coefficient value corresponding to the detected correction rate value is obtained.
The correction coefficient value is a coefficient value for correcting the electric quantity when the table body 1 is abnormal, and is obtained by inquiring a database storing the correction coefficient value. The correction coefficient value is obtained through analysis of the correction rate detection value, so that the correction coefficient value can be conveniently used later.
In step S453642, the measured power value corresponding to the parameter detection information is retrieved according to the parameter detection information.
The measured electricity value refers to the calculated electricity value of the table body 1 at the current time, and the measured electricity value is obtained by inquiring a database storing the measured electricity value. And the calculated electric quantity value is called through the parameter detection information, so that the subsequent use of the calculated electric quantity value is convenient.
In step S453643, according to the correspondence between the correction coefficient value, the measured power value and the preset compensation power value, the compensation power value corresponding to the correction coefficient value and the measured power value is obtained and output.
The current time is the electric quantity value which needs to carry out the compensation adjustment on the electric quantity value calculated by one step, and the compensation electric quantity value is obtained by inquiring a database storing the compensation electric quantity value. The correction coefficient value and the counted electric quantity value are analyzed to obtain the electric quantity value to be fed back, and the electric quantity value to be fed back is output, so that professional maintenance personnel can know the electric quantity value to be fed back, and the professional maintenance personnel can conveniently and rapidly process abnormal conditions.
The foregoing description of the preferred embodiments of the application is not intended to limit the scope of the application in any way, including the abstract and drawings, in which case any feature disclosed in this specification (including abstract and drawings) may be replaced by alternative features serving the same, equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

Claims (10)

1. A three-phase three-wire electric energy meter with anomaly detection function is characterized in that: the device comprises a table body (1), a processor (3) and a memory (2), wherein the memory (2) is used for storing a preset abnormality detection analysis method, and the processor (3) is respectively connected with the memory (2) and the table body (1) to analyze and process the acquired parameter detection information in the table body (1) according to the abnormality detection analysis method and output parameter abnormality analysis result information;
The abnormality detection analysis method includes: acquiring parameter detection information;
according to the parameter detection information, calling a parameter detection value corresponding to the parameter detection information, and defining that the parameter detection value comprises a voltage detection value and a current detection value;
judging whether the parameter detection value is positioned in a preset parameter reference interval or not;
if yes, continuing to acquire parameter detection information;
if not, analyzing and calculating a deviation value between the parameter detection value and the parameter reference interval according to the parameter detection value and a preset parameter reference interval, and taking the deviation value as a parameter deviation actual value;
retrieving parameter deviation type information corresponding to the parameter deviation actual value according to the parameter deviation actual value;
according to a preset parameter deviation analysis method, analyzing and processing the actual value of the parameter deviation and the parameter deviation type information to form parameter abnormality analysis result information, and outputting the parameter abnormality analysis result information.
2. The three-phase three-wire electric energy meter with abnormality detection function according to claim 1, wherein the analyzing processing of the parameter deviation actual value and the parameter deviation type information according to the preset parameter deviation analyzing method to form parameter abnormality analysis result information includes:
Retrieving single type deviation reference information corresponding to the parameter deviation type information according to the parameter deviation type information;
judging whether the parameter deviation type information is only one;
if so, analyzing and acquiring single-type abnormal result information according to the matching result of the parameter deviation actual value and the single-type deviation reference information, and taking the single-type abnormal result information as parameter abnormal analysis result information;
if not, randomly selecting one group of single-type deviation reference information and taking the single-type deviation reference information as reference selection reference information, and taking other groups of single-type deviation reference information as selection reference information;
according to the judging result of whether the standard value consistent with the standard selection reference information exists in the selection reference information or not, taking the consistent standard value as composite type deviation reference information;
and analyzing and acquiring composite type abnormal result information according to the matching result of the parameter deviation actual value and the composite type deviation reference information, and taking the composite type abnormal result information as parameter abnormal analysis result information.
3. The three-phase three-wire electric energy meter with abnormality detection function according to claim 1, further comprising the step of following the continued acquisition of parameter detection information, in particular:
According to the parameter detection information, calling a power detection value corresponding to the parameter detection information;
judging whether the power detection value is positioned in a preset power reference interval or not;
if yes, processing the parameter detection information according to a preset phasor processing method to form parameter phasor information;
according to the corresponding relation between the parameter phasor information and the preset power factor detection value, analyzing and obtaining the power factor detection value corresponding to the parameter phasor information;
analyzing and acquiring power factor abnormal result information according to a judging result of whether the power factor detection value is in a preset power factor reference interval or not, and outputting the power factor abnormal result information;
if not, analyzing and calculating a difference value between the power detection value and the power reference interval according to the power detection value and the power reference interval, and taking the difference value as a power deviation value;
and analyzing and acquiring power deviation abnormal result information corresponding to the power deviation value according to the corresponding relation between the power deviation value and the preset power deviation abnormal result information, and outputting the power deviation abnormal result information.
4. The three-phase three-wire electric energy meter with abnormality detection function according to claim 3, wherein analyzing and acquiring power factor abnormality result information according to a judgment result of whether the power factor detection value is within a preset power factor reference interval includes:
Judging whether the power factor detection value is positioned in a preset power factor reference interval or not;
if yes, analyzing and processing the parameter phasor information according to a preset hexagonal chart acquisition method to form parameter hexagonal chart information;
analyzing and processing parameter hexagonal graph information according to a preset hexagonal graph abnormality analysis method to form hexagonal graph abnormality result information, and outputting the hexagonal graph abnormality result information;
if not, according to the power factor detection value and the power factor reference interval, analyzing and calculating a difference value between the power factor detection value and the power factor reference interval and taking the difference value as a power factor deviation value;
according to the corresponding relation between the power factor deviation value and the preset power factor deviation abnormal result information, analyzing and obtaining the power factor deviation abnormal result information corresponding to the power factor deviation value, and taking the power factor deviation abnormal result information as the power deviation abnormal result information.
5. The three-phase three-wire electric energy meter with abnormality detection function according to claim 4, characterized in that analyzing the parameter hexagonal map information to form hexagonal map abnormality result information according to a preset hexagonal map abnormality analysis method includes:
According to the parameter hexagonal chart information, phase voltage image information, line voltage image information and current image information corresponding to the parameter hexagonal chart information are called;
according to the phase voltage image information, analyzing and calculating a phase angle value between adjacent phase voltage image information and taking the phase angle value as a voltage phase sequence value;
judging whether the voltage phase sequence values are equal;
if yes, according to the current image information, analyzing and calculating a phase angle value between adjacent current image information and taking the phase angle value as a current phase sequence value;
analyzing and processing the current phase sequence value according to a preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information, and taking the current phase sequence abnormality result information as hexagonal graph abnormality result information;
if not, analyzing and acquiring the voltage phase sequence abnormal result information corresponding to the voltage phase sequence value according to the corresponding relation between the voltage phase sequence value and the preset voltage phase sequence abnormal result information, and taking the voltage phase sequence abnormal result information as hexagonal graph abnormal result information.
6. The three-phase three-wire electric energy meter with abnormality detection function according to claim 5, characterized in that the analyzing the current phase sequence value according to the preset current phase sequence abnormality analysis method to form current phase sequence abnormality result information includes:
Judging whether the current phase sequence value is larger than a preset reverse phase sequence reference value or not;
if yes, outputting current reverse abnormal result information and taking the current reverse abnormal result information as current phase sequence abnormal result information;
if not, judging whether the current phase sequence value is positioned in a preset positive phase sequence reference interval;
if yes, outputting forward abnormal result information and taking the forward abnormal result information as current phase sequence abnormal result information;
if not, according to the current phase sequence value and the forward phase sequence reference interval, analyzing and calculating the difference value between the current phase sequence value and the forward phase sequence reference interval and taking the difference value as the current phase sequence interval deviation value;
according to the corresponding relation between the current phase sequence interval deviation value and the preset current phase sequence deviation abnormal information, analyzing and obtaining the current phase sequence deviation abnormal information corresponding to the current phase sequence interval deviation value, and taking the current phase sequence deviation abnormal information as current phase sequence abnormal result information.
7. The three-phase three-wire electric energy meter with abnormality detection function according to claim 6, further comprising the step of, before outputting the forward direction no-abnormality result information as current phase sequence abnormality result information, specifically:
according to the forward phase sequence reference interval, an interval median value corresponding to the forward phase sequence reference interval is called;
According to the current phase sequence value and the interval median, analyzing and calculating the difference between the current phase sequence value and the interval median and taking the difference as the current phase sequence median deviation value;
judging whether the current phase sequence bit deviation value is smaller than a preset current phase sequence bit reference value or not;
if yes, outputting forward abnormal result information and taking the forward abnormal result information as current phase sequence abnormal result information;
if not, analyzing and acquiring a current phase sequence deviation influence value corresponding to the current phase sequence deviation value according to the corresponding relation between the current phase sequence deviation value and the preset current phase sequence deviation influence value;
according to the corresponding relation between the current phase sequence deviation influence value and the preset current phase sequence deviation adjustment value, analyzing and obtaining the current phase sequence deviation adjustment value corresponding to the current phase sequence deviation influence value, and outputting the current phase sequence deviation adjustment value.
8. The three-phase three-wire electric energy meter with abnormality detection function according to claim 7, further comprising the step of following the output current phase sequence deviation adjustment value, in particular:
according to the corresponding relation between the current phase sequence deviation adjustment value and the preset voltage adjustment phase sequence value, analyzing and obtaining the voltage adjustment phase sequence value corresponding to the current phase sequence deviation adjustment value;
According to the voltage adjustment phase sequence value and the voltage phase sequence value, analyzing and calculating a deviation value between the voltage adjustment phase sequence value and the voltage phase sequence value and taking the deviation value as the voltage adjustment phase sequence deviation value;
according to the voltage adjustment phase sequence deviation value and a preset voltage deviation reference interval, analyzing and calculating a deviation value between the voltage adjustment phase sequence deviation value and the voltage deviation reference interval and taking the deviation value as a voltage deviation adjustment value;
according to the corresponding relation between the voltage deviation adjustment value and the preset current deviation correction value, analyzing and obtaining the current deviation correction value corresponding to the voltage deviation adjustment value, and adding the current deviation correction value to the current phase sequence deviation adjustment value to form a new current phase sequence deviation adjustment value.
9. The three-phase three-wire electric energy meter with abnormality detection function according to claim 5, further comprising the step of following the current phase sequence abnormality result information as the hexagonal map abnormality result information or the phase sequence abnormality result information as the hexagonal map abnormality result information, concretely comprising:
according to the corresponding relation between the abnormal result information of the hexagonal map and the preset correct result information of the hexagonal map, analyzing and obtaining the correct result information of the hexagonal map corresponding to the abnormal result information of the hexagonal map;
According to the corresponding relation between the correct result information of the hexagonal diagram and the preset correct wiring power value, analyzing and obtaining the correct wiring power value corresponding to the correct result information of the hexagonal diagram;
and analyzing and obtaining correction rate detection values corresponding to the correct wiring power value, the power detection value and the power factor detection value according to the corresponding relation between the correct wiring power value, the power detection value and the power factor detection value and the preset correction rate detection value, and outputting the correction rate detection value.
10. The three-phase three-wire electric energy meter with abnormality detection function according to claim 9, further comprising the step of, after outputting the correction rate detection value, concretely comprising:
according to the corresponding relation between the correction rate detection value and the preset correction coefficient value, analyzing and obtaining the correction coefficient value corresponding to the correction rate detection value;
calling a measured electricity value corresponding to the parameter detection information according to the parameter detection information;
and analyzing and obtaining the compensation electric quantity value corresponding to the correction coefficient value and the calculated electric quantity value according to the corresponding relation between the correction coefficient value, the calculated electric quantity value and the preset compensation electric quantity value, and outputting the compensation electric quantity value.
CN202310991984.3A 2023-08-08 2023-08-08 Three-phase three-wire electric energy meter with abnormality detection function Active CN116699235B (en)

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