CN110910030A - Breaker health state detection method and device, computer device and storage medium - Google Patents

Breaker health state detection method and device, computer device and storage medium Download PDF

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Publication number
CN110910030A
CN110910030A CN201911202288.XA CN201911202288A CN110910030A CN 110910030 A CN110910030 A CN 110910030A CN 201911202288 A CN201911202288 A CN 201911202288A CN 110910030 A CN110910030 A CN 110910030A
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score
state quantity
specific
specific state
functional unit
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杨玥
康琪
郭红兵
杨军
荀华
姜涛
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Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
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Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Electricity, gas or water supply

Abstract

The invention relates to a method and a device for detecting the health state of a circuit breaker, a computer device and a storage medium, belonging to the technical field of detection of the health state of the circuit breaker.

Description

Breaker health state detection method and device, computer device and storage medium
Technical Field
The invention relates to the technical field of breaker health state detection, in particular to a breaker health state detection method and device, a computer device and a storage medium.
Background
At present, in the power industry, the state maintenance work of the circuit breaker is far behind the maintenance work of the transformer, the state maintenance of the circuit breaker is limited to detecting single state quantity of the circuit breaker in the aspects of electricity or machinery and the like, and systematic and comprehensive analysis of the state quantity of the electricity, the machinery and the like is lacked, so that the accuracy of detecting the health state of the circuit breaker is not high.
Disclosure of Invention
The invention provides a method and a device for detecting the health state of a circuit breaker, a computer device and a storage medium, which are used for improving the accuracy of detecting the health state of the circuit breaker.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a method for detecting a health state of a circuit breaker, including:
determining specific function units for detecting the health state of the circuit breaker to be detected and specific state quantities contained in each specific function unit based on the type of the circuit breaker to be detected;
calculating a score for each specific state quantity;
calculating the score of the specific functional unit to which each specific state quantity belongs based on the score of each specific state quantity;
and calculating the health state grade of the circuit breaker to be detected based on the score of each specific functional unit.
In a second aspect, an embodiment of the present invention provides a health status detection apparatus for a circuit breaker, including:
the determining unit is used for determining specific function units used for detecting the health state of the circuit breaker to be detected and specific state quantities contained in each specific function unit based on the type of the circuit breaker to be detected;
a first calculation unit for calculating a score for each specific state quantity;
a second calculating unit configured to calculate a score of a specific functional unit to which each specific state quantity belongs, based on the score of each specific state quantity;
and the third calculating unit is used for calculating the health state grade of the circuit breaker to be detected based on the score of each specific functional unit.
In a third aspect, an embodiment of the present invention provides a computer apparatus, where the computer apparatus includes a processor, and the processor is configured to implement the steps of the breaker health status detection method as described above when executing a computer program stored in a memory.
In a fourth aspect, the present invention provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the breaker health status detection method as described above.
From the above technical contents, it can be seen that the present invention has the following beneficial effects:
according to the invention, the specific functional units and the specific state quantities which affect the health state of the circuit breaker to be detected are selected according to different types of the circuit breaker, the scores of the specific state quantities are calculated, the scores of the functional units to which the specific state quantities belong are further calculated, and finally the health state grade of the circuit breaker to be detected is calculated according to the scores of each specific functional unit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic flow chart of a method for detecting a health status of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a block diagram of a health status detection apparatus for a circuit breaker according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
As shown in fig. 1, an embodiment of the present invention provides a method for detecting a health state of a circuit breaker, including:
s101, determining specific function units for detecting the health state of the circuit breaker to be detected and specific state quantities contained in each specific function unit based on the type of the circuit breaker to be detected;
s102, calculating the score of each specific state quantity;
s103, calculating the score of the specific functional unit to which each specific state quantity belongs based on the score of each specific state quantity;
and S104, calculating the health state grade of the circuit breaker to be detected based on the score of each specific functional unit.
In particular, different types of circuit breakers are affected by different factors during operation, so that the circuit breakers are in different health states. In the embodiment of the invention, SF is selected6The technical scheme of the invention is explained in detail by the high-voltage circuit breaker so as toSo that those skilled in the art can better understand the technical scheme of the invention.
SF6The high-voltage circuit breaker is influenced by various factors such as mechanical abrasion, heating action, electromagnetic field influence, chemical corrosion and external force damage in the long-term operation process, and under the combined action of the factors, SF6The high-voltage circuit breaker gradually deteriorates, has low reliability and finally causes the occurrence of faults, and the SF is analyzed6The state of health of a high voltage circuit breaker should be considered first, as to its electrical, mechanical and insulation conditions. Therefore, the embodiment of the invention selects SF6The dielectric unit and the mechanical unit in the high-voltage circuit breaker are used as specific function units, and SF in the dielectric unit is selected6Gas micro water content and SF6Calculating SF using gas pressure and closing time in mechanical unit as specific state quantity6Health status of the high voltage circuit breaker.
After the specific function unit and the specific state quantity are determined, the score of each specific state quantity is calculated, the score of the feature function unit to which each specific state quantity belongs is calculated, and finally the health state grade of the circuit breaker to be detected is calculated according to the score of each feature function unit. The invention comprehensively considers the association system of each specific functional unit and the specific state quantity, thereby effectively improving the accuracy of the detection of the health state of the circuit breaker.
Further, the calculating the score of each specific state quantity specifically includes:
acquiring a specific state quantity from a data packet;
if the specific state quantity exists in the data packet, judging whether the parameter value of the specific state quantity is in a preset interval or not;
if yes, calculating the score of the specific state quantity;
if not, the specific state quantity is left;
if the specific state quantity does not exist in the data packet, the corresponding fixed value is used as the score of the specific state quantity.
Specifically, when detecting the health state of the circuit breaker, a set of data packets is generally required to be input, the data packets include various state quantities of the circuit breaker, and when acquiring a specific state quantity from the data packets, three conditions of normal, unused and missing exist. The normal condition means that the specific state quantity can be obtained from the data packet, namely the specific state quantity exists in the data packet, and the score of the specific state quantity is calculated by the specific state quantity; the unused condition means that when the state quantity in the data packet is full, but a certain state quantity is not needed for calculating the health state of a certain type of circuit breaker, the score of the state quantity is marked as 0; the missing condition is that when the specific state quantity required for calculation is not included in the data packet, that is, when the specific state quantity is not present in the data packet, a fixed value is required to be used as a score of the missing state quantity, and the fixed value may be, for example, 0, or may be a corresponding value according to actual calculation, which is not limited in the embodiment of the present invention.
If the specific state quantity exists in the data packet, calculating the score of the specific state quantity. And each specific state quantity corresponds to a specific data type, which is mainly divided into 7 types, namely type 1-numerical increment, type 2-numerical decrement, type 3-relative increment, type 4-relative decrement, type 5-boolean true alarm, type 6-boolean false alarm and type 7-deviation increment. In the examples of the present invention, SF6The data type corresponding to the gas micro-water content is type 1, SF6The data type corresponding to the gas pressure is type 2, and the data type corresponding to the closing time is type 7.
Each data type limits the parameter value of the state quantity so as to filter out unqualified data and improve the calculation accuracy. Specific limiting conditions are shown in table 1:
table 1: data type and limit condition
Figure BDA0002296170560000051
In the above table, LLIm (Low Value of Limit) and HLim (high Value of Limit) are the lower threshold and the upper threshold of the parameter values, respectively. Cv (condition value) is a parameter value of the state quantity. RelVal (relative value) is the relative base value of the state quantity parameter value, and the relative base value can be correctedThe ideal parameter value of the state quantity is solved, and the real state quantity parameter value floats up and down on the basic value. VnAnd a discrimination threshold value of the state quantity parameter value set for the expert. Assume a non-repeating state quantity parameter set a ═ { LLim, HLim, V1，V2，V3，V4Is then V1，V2，V3And V4The discrimination thresholds are respectively normal, attention, abnormal and serious 4 state quantity parameter values.
For types 1 and 2, the discrimination threshold for the state quantity parameter values must correspond to:
LLim＜V1＜V2＜V3＜V4＜HLim；
for types 3 and 4, the discrimination threshold for the state quantity parameter values must correspond to:
LLim＜V1×RelVal＜V2×RelVal＜V3×RelVal＜V4×RelVal＜HLim；
for type 7, the discrimination threshold of the state quantity parameter value must be in accordance with:
0＜V1＜V2＜V3＜V4，
and RelVal-V4＞LLim，
And RelVal + V4＜HLim。
If the parameter value of the specific state quantity meets the limiting condition, namely is in a preset interval, the score of the specific state quantity is further calculated. For different types of specific state quantities, the scores are calculated as follows:
type 1:
if CV is greater than or equal to V4If yes, the score HS of the specific state quantity is 4;
if V3≤CV＜V4If yes, the score HS of the specific state quantity is 3;
if V2≤CV＜V3If yes, the score HS of the specific state quantity is 2;
if V1≤CV＜V2If yes, the score HS of the specific state quantity is 1;
if CV is less than V1Of the specific state quantityThe score HS is 0.
Type 2:
if CV is less than or equal to V1If yes, the score HS of the specific state quantity is 4;
if V1＜CV≤V2If yes, the score HS of the specific state quantity is 3;
if V2＜CV≤V3If yes, the score HS of the specific state quantity is 2;
if V3＜CV≤V4If yes, the score HS of the specific state quantity is 1;
if CV > V4Then, the score HS of the specific state quantity is 0.
Type 3:
if CV is greater than or equal to V4X RelVal, the score HS of the specific state quantity is 4;
if V3×RelVal≤CV＜V4X RelVal, the score HS of the specific state quantity is 3;
if V2×RelVal≤CV＜V3X RelVal, the score HS of the specific state quantity is 2;
if V1×RelVal≤CV＜V2X RelVal, the score HS of the specific state quantity is 1;
if CV is less than V1X RelVal, the score HS of the specific state quantity becomes 0.
Type 4:
if CV is less than or equal to V1X RelVal, the score HS of the specific state quantity is 4;
if V1×RelVal＜CV≤V2X RelVal, the score HS of the specific state quantity is 3;
if V2×RelVal＜CV≤V3X RelVal, the score HS of the specific state quantity is 2;
if V1×RelVal＜CV≤V2X RelVal, the score HS of the specific state quantity is 1;
if CV > V4X RelVal, the score HS of the specific state quantity becomes 0.
Type 5:
if CV is established, the score HS of the specific state quantity is 4;
if CV is not established, the score HS of the specific state quantity is 0.
Type 6:
if CV is in error or missing, the score HS of the specific state quantity is 4;
if CV is correct or present, the score HS of the specific state quantity is 0.
Type 7:
if CV-RelVal is more than or equal to V4If yes, the score HS of the specific state quantity is 4;
if V3≤CV-RelVal＜V4If yes, the score HS of the specific state quantity is 3;
if V2≤CV-RelVal＜V3If yes, the score HS of the specific state quantity is 2;
if V1≤CV-RelVal＜V2If yes, the score HS of the specific state quantity is 1;
if CV-RelVal < V1Then, the score HS of the specific state quantity is 0.
In the embodiment of the invention, the method is used for calculating SF6The relevant parameter values of the health state of the high-voltage circuit breaker are shown in a table 2:
table 2: for calculating SF6Parameter values related to the state of health of a high-voltage circuit breaker
Figure BDA0002296170560000081
In the embodiment of the invention, a group of test data is selected for calculation, wherein SF6The gas has a micro-water content of 151 mu L/L, SF6The gas pressure is 0.55MPa, and the closing time is 105.1 ms. For the dielectric element, SF can be calculated from the above-mentioned limit conditions and Table 26Score HS of gas micro-water content1,1＝3，SF6Score HS of gas pressure1,21, a specific feature score set H of the dielectric element is obtained1＝{3,1}。
Further, the calculating the score of the specific functional unit to which each specific state quantity belongs based on the score of each specific state quantity specifically includes:
calculating a weighted average score of each specific state quantity based on the score of each specific state quantity, the importance of each specific state quantity and the number of the health state levels of the circuit breaker;
sorting the weighted average scores of each specific state quantity according to a preset rule;
and calculating the score of the specific functional unit to which each specific state quantity belongs based on the sorted weighted average score of each specific state quantity.
Specifically, in the embodiment of the present invention, the state of health of the circuit breaker is divided into 4 levels, and then the specific feature score set H is seti＝{HSi,1,HSi,2,…,HSi,jImportance set I corresponding to a specific state quantityi＝{Im pi,1,Impi,2,…,Im pi,jMultiplying, where i and j are positive integers from 1 to n, and calculating a weighted average score for each particular state quantity by:
Figure BDA0002296170560000091
among them, HSi,jDenotes the score, Im p, of a particular state quantity j in a particular functional unit ii,jRepresenting the importance, WHS, of a particular state quantity j in a particular functional unit ii,jRepresents the weighted average score of a particular state quantity j in a particular functional unit i. As can be seen from Table 2, for the dielectric element, SF6Importance Im p corresponding to gas micro-water content1,1＝4，SF6Importance Im p corresponding to gas pressure1,24, the score set H of the specific state quantity of the dielectric unit1Importance set I corresponding to {3,1}1SF can be calculated from equation (1) {4,4}6Weighted average score of gas micro-water content:
Figure BDA0002296170560000092
SF6weighted average score of gas pressure:
Figure BDA0002296170560000093
then, the weighted average scores of each specific state quantity are sorted according to a preset rule to obtain a set Wi＝{WHS′i,1,WHS′i,2,…WHS′i,jWherein i and j are each a positive integer from 1 to n. The weighted average scores of each specific state quantity are sorted, so that the influence of each specific state quantity on the score of the specific functional unit can be more intuitive. In embodiments of the invention, the scores may be ranked from high to low, resulting in WHS'1,13 and WHS'1,21, denoted as set W1In practical calculation, the sequences may also be sorted from low to high, and the embodiment of the present invention is not limited.
Further, the calculating the score of the specific functional unit to which each specific state quantity belongs based on the sorted weighted average score of each specific state quantity specifically includes:
based on the sorted weighted average scores of each specific state quantity, summing the weighted average scores of the specific state quantities belonging to the same specific functional unit to obtain a first health score of the specific functional unit to which each specific state quantity belongs;
and multiplying the first health score of the specific functional unit by a specific coefficient to obtain a second health score of the specific functional unit, and taking the second health score of the specific functional unit as the score of the specific functional unit to which each specific state quantity belongs.
Specifically, in order to more accurately detect the influence of the specific state quantity on the health state of the circuit breaker, the sorted weighted average scores of the specific state quantities belonging to the same specific functional unit may be placed in the same two-dimensional graph, and the variation trend of the sorted weighted average scores of the specific state quantities belonging to the same specific functional unit may be obtained. In order to make the influence of the specific state quantity on the score of the specific functional unit more intuitive, an exponential function can be adopted to reflect the change trend of the weighted average score of the sorted specific state quantities belonging to the same specific functional unitI.e. by
Figure BDA0002296170560000101
Other functions may be adopted to reflect the variation trend of the weighted average scores of the sorted specific state quantities belonging to the same specific functional unit according to actual calculation, and the embodiment of the present invention is not limited.
Then, summing the weighted average scores of the sorted specific state quantities belonging to the same specific functional unit, and obtaining a first health score of the specific functional unit to which each specific state quantity belongs through the following formula:
Figure BDA0002296170560000102
wherein, WHS'i,jA weighted average score, AHS, representing the ordered specific state quantities j in the specific functional unit iiRepresenting a first health score for a particular functional unit i. In an embodiment of the present invention, the first health score of the dielectric unit can be calculated by equation (2):
Figure BDA0002296170560000103
thereafter, the first health score AHS is scaled using an exponential functioniIs reduced and multiplied by a specific coefficient to obtain a second health score, which is expressed as an interval [0,100 ]]The specific coefficient is 25 in the embodiment of the present invention, and other specific coefficients can be used according to actual calculation as long as the second health score can be made in the interval [0,100 ]]That is, the embodiments of the present invention are not limited. In the embodiment of the present invention, the calculation is specifically performed by the following formula:
Figure BDA0002296170560000111
where m is the number of specific state quantities in a specific functional unit, CAHSiSecond health score for a particular functional Unit i, i.e. TechAnd determining the score of the functional unit i. The score of the dielectric element can be calculated from equation (3):
Figure BDA0002296170560000112
similarly, the CAHS score of the mechanical unit can be calculated by the data and the formula2The calculation process is the same as that of the dielectric unit 75, and the embodiment of the present invention is not described again.
Further, the calculating the health status grade of the circuit breaker to be detected based on the score of each specific function unit specifically includes:
calculating a weighted average score of the specific functional unit based on the score of the specific functional unit and the importance of the specific functional unit;
and calculating the health state grade of the circuit breaker to be detected based on the weighted average score of the specific functional unit.
In particular, in the embodiments of the present invention, SF is aimed at6High voltage circuit breaker, importance of dielectric unit Imp14, importance of mechanical unit Imp23, the importance, that is, the weight parameter, may be obtained by training the detection model of the corresponding type of circuit breaker through the data sample, or may be the importance of the specific function unit of the existing corresponding type of circuit breaker, which is not limited in the embodiment of the present invention. In an embodiment of the present invention, the weighted average score of a particular functional unit is calculated by the following formula:
Figure BDA0002296170560000121
wherein, ImpiIndicates the importance of a particular functional unit i,
Figure BDA0002296170560000122
representing the weighted average score of a particular functional unit i. The weighted average score of the dielectric elements can be calculated from equation (4):
Figure BDA0002296170560000123
weighted average score of mechanical unit:
Figure BDA0002296170560000124
and then, calculating the health score of the circuit breaker by the following formula:
Figure BDA0002296170560000125
wherein ZHS is the health score of the circuit breaker to be detected. From equation (5), SF in the examples of the present invention can be calculated6Health score of high voltage circuit breaker:
Figure BDA0002296170560000126
from this, the health status level of the circuit breaker to be detected can be determined, the relationship between the health score of the circuit breaker and the health status level of the circuit breaker being shown in table 3:
table 3: circuit breaker health state grade division parameter table
Figure BDA0002296170560000127
Figure BDA0002296170560000131
High risk indicates that the circuit breaker has a serious fault and needs to be overhauled as soon as possible; the medium risk represents that the fault degree of the circuit breaker is medium, and daily routing inspection needs to be enhanced; the low risk represents that the breaker has slight fault and can be regularly checked; normal indicates that the circuit breaker is in a healthy state. As can be seen from Table 3, SF in the examples of the present invention6The health score ZHS of the high voltage circuit breaker is 65.45, and the corresponding circuit breaker health status grade is 3, is in the risk, needs to strengthen daily patrol.
Further, the method for detecting the health state of the circuit breaker provided by the embodiment of the invention further comprises the following steps:
and calculating the contribution score of each specific state quantity to the specific functional unit to which the specific state quantity belongs based on the weighted average score of each specific state quantity and the score of the specific functional unit to which the specific state quantity belongs.
Specifically, in order to understand the degree of influence of a specific state quantity on the score of the specific functional unit, the contribution score of the specific state quantity can be calculated by the following formula:
Figure BDA0002296170560000132
wherein, Ci,jIs the contribution score of a particular state quantity j to the particular functional unit i to which it belongs. From equation (6), SF in the dielectric unit can be calculated6Contribution score of gas micro water content:
Figure BDA0002296170560000133
SF6contribution score of gas pressure:
Figure BDA0002296170560000134
from this, SF6The micro-water content of the gas has a greater influence on the dielectric element score than SF6The pressure of the gas.
Similarly, the contribution score C of the closing time in the mechanical unit to the mechanical unit can be calculated by the data and the formula2，1The calculation process is the same as that of the dielectric unit 75, and the embodiment of the present invention is not described again.
In a second aspect, as shown in fig. 2, an embodiment of the present invention provides a health status detection apparatus for a circuit breaker, including:
the determining unit 100 is used for determining specific function units used for detecting the health state of the circuit breaker to be detected and specific state quantities contained in each specific function unit based on the type of the circuit breaker to be detected;
a first calculation unit 200 for calculating a score for each specific state quantity;
a second calculating unit 300 configured to calculate a score of a specific functional unit to which each specific state quantity belongs, based on the score of each specific state quantity;
and a third calculating unit 400 for calculating the health status grade of the circuit breaker to be detected based on the score of each specific function unit.
Further, the first computing unit 200 is specifically configured to:
acquiring a specific state quantity from a data packet;
if the specific state quantity exists in the data packet, judging whether the parameter value of the specific state quantity is in a preset interval or not;
if yes, calculating the score of the specific state quantity;
if not, the specific state quantity is left;
if the specific state quantity does not exist in the data packet, the corresponding fixed value is used as the score of the specific state quantity.
Further, the second calculating unit 300 is specifically configured to:
calculating a weighted average score of each specific state quantity based on the score of each specific state quantity, the importance of each specific state quantity and the number of the health state levels of the circuit breaker;
sorting the weighted average scores of each specific state quantity according to a preset rule;
and calculating the score of the specific functional unit to which each specific state quantity belongs based on the sorted weighted average score of each specific state quantity.
Further, the calculating the score of the specific functional unit to which each specific state quantity belongs based on the sorted weighted average score of each specific state quantity specifically includes:
based on the sorted weighted average scores of each specific state quantity, summing the weighted average scores of the specific state quantities belonging to the same specific functional unit to obtain a first health score of the specific functional unit to which each specific state quantity belongs;
and multiplying the first health score of the specific functional unit by a specific coefficient to obtain a second health score of the specific functional unit, and taking the second health score of the specific functional unit as the score of the specific functional unit to which each specific state quantity belongs.
Further, the third calculating unit 400 is specifically configured to:
calculating a weighted average score of the specific functional unit based on the score of the specific functional unit and the importance of the specific functional unit;
and calculating the health state grade of the circuit breaker to be detected based on the weighted average score of the specific functional unit.
Further, the circuit breaker health status detection apparatus provided by the embodiment of the present invention further includes:
and the fourth calculating unit is used for calculating the contribution score of each specific state quantity to the specific function unit to which the specific state quantity belongs based on the weighted average score of each specific state quantity and the score of the specific function unit to which the specific state quantity belongs.
The health state detection device for the circuit breaker can be used for executing the technical scheme of the method embodiment shown in fig. 1, and the implementation principle and the technical effect are similar, and are not described herein again.
In a third aspect, an embodiment of the present invention provides a computer apparatus, which includes a processor, and the processor is configured to implement the steps of the method shown in fig. 1 when executing a computer program stored in a memory.
In a fourth aspect, the present invention provides a readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method shown in fig. 1.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.
Those skilled in the art will appreciate that the description of each embodiment has a respective emphasis, and reference may be made to the related description of other embodiments for those parts of an embodiment that are not described in detail.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims (10)

1. A method for detecting the health state of a circuit breaker is characterized by comprising the following steps:
determining specific function units for detecting the health state of the circuit breaker to be detected and specific state quantities contained in each specific function unit based on the type of the circuit breaker to be detected;
calculating a score for each specific state quantity;
calculating the score of the specific functional unit to which each specific state quantity belongs based on the score of each specific state quantity;
and calculating the health state grade of the circuit breaker to be detected based on the score of each specific functional unit.
2. The method of claim 1, wherein said calculating a score for each particular state quantity specifically comprises:
acquiring a specific state quantity from a data packet;
if the specific state quantity exists in the data packet, judging whether the parameter value of the specific state quantity is in a preset interval or not;
if yes, calculating the score of the specific state quantity;
if not, the specific state quantity is discarded;
and if the specific state quantity does not exist in the data packet, taking a corresponding fixed value as the score of the specific state quantity.
3. The method as claimed in claim 1, wherein said calculating the score of the specific functional unit to which each specific state quantity belongs based on the score of each specific state quantity specifically comprises:
calculating a weighted average score of each specific state quantity based on the score of each specific state quantity, the importance of each specific state quantity and the number of health state levels of the circuit breaker;
sorting the weighted average scores of each specific state quantity according to a preset rule;
and calculating the score of the specific functional unit to which each specific state quantity belongs based on the weighted average score of each specific state quantity after sorting.
4. The method as claimed in claim 3, wherein the calculating the score of the specific functional unit to which each specific state quantity belongs based on the sorted weighted average score of each specific state quantity specifically comprises:
based on the sorted weighted average scores of each specific state quantity, summing the weighted average scores of the specific state quantities belonging to the same specific functional unit to obtain a first health score of the specific functional unit to which each specific state quantity belongs;
and multiplying the first health score of the specific functional unit by a specific coefficient to obtain a second health score of the specific functional unit, and taking the second health score of the specific functional unit as the score of the specific functional unit to which each specific state quantity belongs.
5. The method according to claim 4, wherein said calculating the health status rating of the circuit breaker to be detected based on the score of each specific functional unit comprises in particular:
calculating a weighted average score of the particular functional unit based on the score of the particular functional unit and the importance of the particular functional unit;
and calculating the health state grade of the circuit breaker to be detected based on the weighted average score of the specific functional unit.
6. The method of claim 4, further comprising:
and calculating the contribution score of each specific state quantity to the specific functional unit based on the weighted average score of each specific state quantity and the score of the specific functional unit to which each specific state quantity belongs.
7. A circuit breaker state of health detection apparatus, comprising:
the circuit breaker health state detection device comprises a determination unit, a detection unit and a control unit, wherein the determination unit is used for determining specific functional units used for detecting the health state of a circuit breaker to be detected and specific state quantities contained in each specific functional unit based on the type of the circuit breaker to be detected;
a first calculation unit for calculating a score for each specific state quantity;
a second calculating unit configured to calculate a score of a specific functional unit to which each specific state quantity belongs, based on the score of each specific state quantity;
and the third calculating unit is used for calculating the health state grade of the circuit breaker to be detected based on the score of each specific functional unit.
8. The apparatus as recited in claim 7, wherein said first computing unit is specifically configured to:
acquiring a specific state quantity from a data packet;
if the specific state quantity exists in the data packet, judging whether the parameter value of the specific state quantity is in a preset interval or not;
if yes, calculating the score of the specific state quantity;
if not, the specific state quantity is discarded;
and if the specific state quantity does not exist in the data packet, taking a corresponding fixed value as the score of the specific state quantity.
9. A computer arrangement, characterized in that the computer arrangement comprises a processor for implementing the steps of the method according to any one of claims 1-6 when executing a computer program stored in a memory.
10. A readable storage medium having stored thereon a computer program, characterized in that: the computer program realizing the steps of the method according to any one of claims 1-6 when executed by a processor.
CN201911202288.XA 2019-11-29 2019-11-29 Breaker health state detection method and device, computer device and storage medium Pending CN110910030A (en)

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