CN106503908B - Method for evaluating operation quality of power transformation equipment - Google Patents

Method for evaluating operation quality of power transformation equipment Download PDF

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CN106503908B
CN106503908B CN201610950153.1A CN201610950153A CN106503908B CN 106503908 B CN106503908 B CN 106503908B CN 201610950153 A CN201610950153 A CN 201610950153A CN 106503908 B CN106503908 B CN 106503908B
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程建伟
陈曦
袁耀
王颂
李志强
张曦
彭在兴
喇元
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China South Power Grid International Co ltd
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CSG Electric Power Research Institute
Power Grid Technology Research Center of China Southern Power Grid Co Ltd
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Abstract

The invention discloses a power transformation equipment operation quality evaluation method, relates to the technical field of power equipment operation monitoring, and solves the technical problem that the existing power transformation equipment operation quality evaluation method cannot comprehensively evaluate the operation quality of power transformation equipment provided by different suppliers. The method for evaluating the operation quality of the power transformation equipment comprises the following steps: acquiring operation parameters of the power transformation equipment; obtaining an efficiency index EOE of the power transformation equipment, a risk index ROE of the power transformation equipment and a cost index COE of the power transformation equipment according to the operation parameters; and obtaining an operation quality index EQE of the power transformation equipment according to the efficiency index EOE, the risk index ROE and the cost index COE, wherein the EQE is EOE + ROE + COE. The method is applied to evaluating the operation quality of the power transformation equipment.

Description

Method for evaluating operation quality of power transformation equipment
Technical Field
The invention relates to the technical field of power equipment operation monitoring, in particular to a method for evaluating the operation quality of power transformation equipment.
Background
With the gradual increase of the scale of the power grid and the rise of the voltage class, the safe and reliable operation of the power system becomes more and more important, and the requirement on the operation quality of the power transformation equipment of the power system is higher and higher, so that the operation quality of the power transformation equipment needs to be effectively evaluated.
At present, the operation quality of the power transformation equipment is mostly evaluated by using an equipment efficiency index (EOE), however, the operation quality of the power transformation equipment is only evaluated by using the equipment efficiency index, and the operation quality of the power transformation equipment provided by different suppliers cannot be comprehensively evaluated, so that it is not beneficial for a worker to make an operation and maintenance plan for the power transformation equipment provided by different suppliers, and guidance cannot be provided for model selection of the power transformation equipment.
Disclosure of Invention
The invention aims to provide a method for evaluating the operation quality of power transformation equipment, which is used for comprehensively evaluating the operation quality of the power transformation equipment so as to facilitate working personnel to make an operation and maintenance plan of the power transformation equipment according to the evaluation and provide guidance for the type selection of the power transformation equipment.
In order to achieve the purpose, the invention provides a method for evaluating the operation quality of power transformation equipment, which adopts the following technical scheme:
the method for evaluating the operation quality of the power transformation equipment comprises the following steps:
acquiring operation parameters of the power transformation equipment;
obtaining an efficiency index EOE of the power transformation equipment, a risk index ROE of the power transformation equipment and a cost index COE of the power transformation equipment according to the operation parameters;
and obtaining an operation quality index EQE of the power transformation equipment according to the efficiency index EOE, the risk index ROE and the cost index COE, wherein the EQE is EOE + ROE + COE.
Compared with the prior art, the method for evaluating the operation quality of the power transformation equipment has the following beneficial effects:
according to the method for evaluating the operation quality of the power transformation equipment, after the operation parameters of the power transformation equipment are obtained, the efficiency index EOE, the risk index ROE and the cost index COE of the power transformation equipment can be obtained according to the operation parameters, and then the operation quality index EQE for evaluating the operation quality of the power transformation equipment is finally obtained by integrating the efficiency index EOE, the risk index ROE and the cost index COE, so that when the operation quality of the power transformation equipment is evaluated, the efficiency index of the power transformation equipment is considered, the risk index and the cost index are also considered, the operation quality of the power transformation equipment is more comprehensively evaluated, and further, a worker can conveniently make operation and maintenance plans for the power transformation equipment provided by different suppliers, and can also provide guidance for type selection of the power transformation equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for evaluating operation quality of a power transformation device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a method for evaluating operation quality of a power transformation device, and specifically, as shown in fig. 1, the method for evaluating operation quality of a power transformation device includes:
and step S1, acquiring the operation parameters of the substation equipment.
Illustratively, the operation parameters of the power transformation device include the total number of on-grid devices of the power transformation device, the total number of on-grid devices of the power transformation device provided by a certain supplier, the total number of device failures of the power transformation device provided by a certain supplier, the total number of the power transformation devices provided by a certain supplier without failures, and the like, and those skilled in the art can obtain the operation parameters according to requirements in an actual evaluation process.
And step S2, obtaining an efficiency index EOE of the power transformation equipment, a risk index ROE of the power transformation equipment and a cost index COE of the power transformation equipment according to the operation parameters.
Step S3, obtaining an operation quality index EQE of the power transformation device according to the efficiency index EOE, the risk index ROE, and the cost index COE, where EQE is EOE + ROE + COE.
In the technical scheme of this embodiment, after the operation parameters of the power transformation equipment are obtained, according to the operation parameters, the efficiency index EOE, the risk index ROE and the cost index COE of the power transformation equipment can be obtained, and then, the operation quality index EQE for evaluating the operation quality of the power transformation equipment is finally obtained by integrating the efficiency index EOE, the risk index ROE and the cost index COE, so that when the operation quality of the power transformation equipment is evaluated, the operation quality of the power transformation equipment is more comprehensively evaluated by considering not only the efficiency index but also the risk index and the cost index of the power transformation equipment, and further, a worker can conveniently make an operation and maintenance plan for the power transformation equipment provided by different suppliers, and can also provide guidance for the type selection of the power transformation equipment.
Alternatively, the performance index EOE in step S2 may include a plurality of scores of the power transformation equipment in terms of performance, and similarly, the risk index ROE and the cost index COE may also include a plurality of scores of the power transformation equipment in terms of risk and cost, respectively. For the convenience of understanding and implementation of those skilled in the art, the following embodiments of the present invention will provide specific contents of the above-mentioned performance index EOE, risk index ROE and cost index COE.
First, the performance indicator EOE may include an equipment inventory fraction EI of the power transformation equipment.
Illustratively, the specific steps of obtaining the device holding quantity fraction EI include:
basic EI of equipment inventory for acquiring power transformation equipmentb。
Device capacity full-scale EI for acquiring power transformation devicef。
It should be noted that, those skilled in the art can set the equipment holding amount of the power transformation equipment according to the actual situation to be substantially EIbAnd full-load EI of equipment inventory of power transformation equipmentfThe specific values of (b) are not intended to limit the scope of the present invention.
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
According to the total number N of the transformer equipment provided by the ith supplieriObtaining the maximum value N of the total number of the transformer equipment in the network provided by the suppliermaxWherein N ismax＝max(Ni)。
Substantially dividing EI according to equipment holding quantitybFull-scale EI of equipment holding amountfAnd the total number N of the transformer equipments provided by the ith supplieriAnd the maximum value N of the total number of the transformer equipment in the network provided by the suppliermaxAnd obtaining a device holding quantity fraction EI, wherein,
Figure GDA0002360907400000041
in addition, the performance index EOE may further include a technical support fraction TS of the power transformation equipment and a unit complaint fraction OC of the power transformation equipment, where the performance index EOE of the power transformation equipment is EI + TS-OC.
Illustratively, the specific step of obtaining the technical support score TS includes:
obtaining technical support base score T of power transformation equipmentb。
Acquiring technical support full score T of power transformation equipmentf。
Obtaining a number n of scoring reports for technical support of a provider on a substation devicek。
Obtaining the grade t of the technical support of the supplier to the power transformation equipment in the ith grade reporti，tiIs 20.
Scoring T according to a technical support basisbTechnical support full score TfSupplier pair transformationNumber n of rating reports for technical support of a devicekAnd a rating t of technical support of the power transformation equipment by the supplieriA technical support score, TS, is obtained, wherein,
when n iskWhen equal to 0, TS equal to Tb；
When n iskWhen the signal is not equal to 0, the signal is transmitted,
Figure GDA0002360907400000051
illustratively, the specific step of obtaining the complaint score OC of the running unit includes:
obtaining the major complaint times n of the power transformation equipment within the complaint validity period1General complaint times n of power transformation equipment2And the number n of slight complaints of the power transformation equipment3。
According to the number of major complaints n1General number of complaints n2And the number of slight complaints n3Obtaining the complaint score OC of unit of operation, wherein OC is 4 multiplied by n1+2×n2+1×n3。
The efficiency index EOE of the power transformation equipment is determined through the three aspects, the comprehensiveness of the obtained efficiency index EOE can be improved, and therefore the comprehensiveness of the operation quality index EQE of the operation quality of the power transformation equipment is improved.
The risk index ROE may include an equipment failure score EF of the power transformation equipment, an equipment state score ES of the power transformation equipment, and a batch defect score BD of the power transformation equipment.
Illustratively, the specific steps of obtaining the risk indicator ROE include:
and acquiring an equipment fault fraction EF of the power transformation equipment.
And acquiring an equipment state score ES of the power transformation equipment.
And acquiring the batch defect fraction BD of the power transformation equipment.
And obtaining a risk index ROE according to the equipment failure score EF, the equipment state score ES and the batch defect score BD, wherein the ROE is EF + ES-BD.
Specifically, the specific methods for obtaining the equipment fault score EF of the power transformation equipment, obtaining the equipment state score ES of the power transformation equipment, and obtaining the batch defect score BD of the power transformation equipment respectively include:
(1) the specific steps of obtaining the equipment fault fraction EF of the power transformation equipment comprise:
acquiring fault full score F of power transformation equipmentf。
Obtaining fault reference score F of power transformation equipmentb。
It should be noted that, those skilled in the art can set the fault full score F of the power transformation device according to actual conditionsfAnd fault reference branch F of power transformation equipmentbThe specific values of (b) are not intended to limit the scope of the present invention.
And acquiring the total number N of the transformer equipment in the network.
And acquiring the total equipment fault times n of the power transformation equipment.
Acquiring the total network fault rate f of the power transformation equipment according to the total number N of the on-network equipment and the total number N of equipment faultsnWherein, in the step (A),
Figure GDA0002360907400000061
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
Respectively acquiring the number n of equipment faults in the 1 st operating year interval of the power transformation equipment provided by the ith supplier1And the 2 nd operation year interval equipment failure times n2And the number n of equipment faults in the 3 rd operation year interval3And the 4 th operation year interval equipment failure frequency n4And the number n of equipment faults in the 5 th operation year interval5Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 10 years of operation, the 3 rd operation year interval is 11 to 15 years of operation, the 4 th operation year interval is 16 to 20 years of operation, and the 5 th operation year interval is more than 20 years of operation.
According to the number n of equipment faults in the 1 st operation year interval1And the 2 nd operation year interval equipment failure times n2And the number n of equipment faults in the 3 rd operation year interval34 th operation year interval equipment failure frequencyn4And the number n of equipment faults in the 5 th operation year interval5Obtaining the total number n of equipment faults of the transformation equipment provided by the ith supplierFWherein n isF＝n1+n2+n3+n4+n5。
According to the total number N of the transformer equipment provided by the ith supplieriAnd the total number n of equipment failures of the transformation equipment provided by the ith supplierFObtaining the failure rate f of the transformation equipment provided by the ith suppliersWherein, in the step (A),
Figure GDA0002360907400000062
acquiring the total number F of the faultless power transformation equipment provided by the ith supplieri。
According to the total number F of the fault-free power transformation equipment provided by the ith supplieriObtaining a maximum value F of the total number of the fault-free power transformation equipment provided by the suppliermaxWherein F ismax＝max(Fi)。
According to fault full score FfAnd a fault reference point FbFailure rate f of the whole network n1 st operation year interval equipment failure frequency n1And the 2 nd operation year interval equipment failure times n2And the number n of equipment faults in the 3 rd operation year interval3And the 4 th operation year interval equipment failure frequency n4And the number n of equipment faults in the 5 th operation year interval5And the total number n of equipment failures of the power transformation equipment provided by the ith supplierFFailure rate f of power transformation equipment provided by ith suppliersTotal number of failed power transformation equipment F provided by ith supplieriAnd a maximum value F of the total number of non-failed power transformation devices provided by the suppliermaxObtaining an equipment failure score, EF, wherein,
when n isFWhen the content is equal to 0, the content,
Figure GDA0002360907400000071
when n isFNot equal to 0, and fs≥fnWhen EF is equal to Fb-(4×n1+3×n2+2×n3+1×n4+1×n5)；
When n isFNot equal to 0, and fs＜fnWhen the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000072
(2) the specific step of obtaining the equipment state score ES comprises the following steps:
respectively acquiring the total number ES of the transformation equipment in the normal state provided by the ith supplier1Total number of substation devices in attention status ES2And total number of abnormal-state power transformation devices ES3。
It should be added that, for the discrimination of the power transformation equipment in the normal state, the attention state and the abnormal state, there is a unified discrimination standard in the art, and a person skilled in the art can obtain the total ES of the power transformation equipment in the normal state provided by the ith supplier by discriminating the state of the power transformation equipment according to the discrimination standard1Total number of substation devices in attention status ES2And total number of abnormal-state power transformation devices ES3。
Total number of power transformation devices ES according to normal state1Total number of substation devices in attention status ES2And total number of abnormal-state power transformation devices ES3Obtaining a basic score ES of the equipment state of the power transformation equipmentbWherein, in the step (A),
Figure GDA0002360907400000081
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Acquiring a first equipment year occupation ratio coefficient x of power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3。
Illustratively, a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier is acquired1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3The method comprises the following specific steps:
respectively acquiring the number n of the transformation equipment in the 1 st operation year interval provided by the ith supplier1And the number n of the power transformation equipment in the 2 nd operation year interval2And the number n of the transformation equipment in the 3 rd operation year interval3，
Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 15 years of operation, and the 3 rd operation year interval is more than 15 years of operation.
According to the total number N of the transformer equipment provided by the ith supplieriAnd the number n of the transformation equipment in the 1 st operation year interval provided by the ith supplier1And the number n of the transformation equipment in the 2 nd operation year interval provided by the ith supplier2And the number n of the transformation equipment in the 3 rd operation year interval provided by the ith supplier3Obtaining a first equipment age ratio coefficient x of the transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3Wherein, in the step (A),
Figure GDA0002360907400000082
obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1The second equipment operation age correction coefficient cs2And a third equipment operation age correction coefficient cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8。
It is necessary to supplement the above-mentioned first equipment operation age correction coefficient cs1The operating age correction coefficient of the power transformation equipment with the operating time of 0 to 5 years and the second equipment operating age correction coefficient cs are provided for the ith supplier2The operating age correction coefficient of the power transformation equipment with the operating time of 6-15 years and provided for the ith supplier, and the operating age correction coefficient cs of the third equipment3Power transformation equipment with running time of more than 15 years provided for ith supplierAnd correcting the coefficient of the running life of the device. Since the shorter the operating life of the power transformation device, the more valuable the evaluation of the operating quality of the power transformation device by the power transformation device parameters, the correction factor cs for the operating life of the first device1Has the largest value, and the second equipment operation age correction coefficient cs2Is less than the first equipment operation age correction coefficient cs1Value of (c), third plant operational age correction factor cs3The value of (a) is minimal.
Basic score ES according to device statusbThe first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2The third equipment year occupation ratio coefficient x3The first equipment operation age correction coefficient cs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Obtaining a device status score ES, wherein ES is ESb×(x1×cs3+x2×cs2+x3×cs1)。
(3) The specific steps of obtaining the batch defect fraction BD include:
acquiring the number n of batch defect cases found by the operation unit processed by the ith supplier1。
Acquiring the number n of batch defect cases found by a running unit which is not processed by the ith supplier2。
The number n of batch-wise defective cases found from the unit of operation processed by the ith supplier1And the number n of batch-type defective cases found by the operation unit which is not processed by the ith supplier2Obtaining a batch defect score BD, wherein BD is 2 Xn1+8×n2。
By determining the risk index ROE of the power transformation equipment in the three aspects, the comprehensiveness of the obtained risk index ROE can be improved, and therefore the comprehensiveness of the operation quality index EQE of the operation quality of the power transformation equipment is further improved.
Thirdly, the cost index COE may include a device reliability score ER of the power transformation device, a general defect score CD of the power transformation device, an emergency defect score UD of the power transformation device, and a major defect score MD of the power transformation device. Specific types of defects generated in the power transformation equipment include: general defects, emergency defects, and major defects; for the specific types of the defects generated by a certain power transformation equipment, the field has a unified judgment standard, and through the judgment standard, a person skilled in the art can judge the specific types of the defects generated by the power transformation equipment.
Illustratively, the specific step of obtaining the cost index COE in step S2 includes:
and acquiring an equipment reliability score ER of the power transformation equipment.
A general defect score CD of the power transformation device is obtained.
And acquiring an emergency defect score UD of the power transformation equipment.
And acquiring a major defect score MD of the power transformation equipment.
And obtaining a cost index COE according to the device reliability score ER, the general defect score CD, the emergency defect score UD and the major defect score MD, wherein the COE is ER + CD + UD + MD.
Specifically, the specific methods for acquiring the device reliability score ER of the power transformation device, acquiring the general defect score CD of the power transformation device, acquiring the emergency defect score UD of the power transformation device, and acquiring the major defect score MD of the power transformation device are respectively as follows:
(1) the specific step of obtaining the equipment reliability score ER comprises the following steps:
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
Obtaining statistical year n of power transformation equipmentr。
Respectively acquiring the major repair outage hours t of the power transformation equipment provided by the ith supplier1Hours t of minor repair outage2Number of first class non-stop hours t3And the second class non-stop hours t4And the number of non-stop hours t of the third kind5。
According to the total number N of the transformer equipment provided by the ith supplieriAnd the statistical year n of the power transformation equipment provided by the ith supplierrHours t of major repair outage1Hours t of minor repair outage2Number of first class non-stop hours t3And the second class non-stop hours t4And the number of non-stop hours t of the third kind5Obtaining the overhaul shutdown coefficient r of the transformation equipment provided by the ith supplier1Minor repair shutdown coefficient r2First class of non-stop coefficients r3Class II non-stop coefficient r4And a third class of non-stop coefficients r5Wherein, in the step (A),
Figure GDA0002360907400000101
Figure DA00023609074044489
Figure GDA0002360907400000102
according to the major repair outage coefficient r1Minor repair shutdown coefficient r2First class of non-stop coefficients r3Class II non-stop coefficient r4And a third class of non-stop coefficients r5Obtaining the equipment reliability basic score ER of the power transformation equipmentbWherein ERb＝3×r1+1×r2+3×r3+2×r4+1×r5。
Acquiring a first equipment year occupation ratio coefficient x of power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3。
Illustratively, the above-mentioned obtaining the first device age ratio coefficient x1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3And obtaining a first device age ratio coefficient x in the step of obtaining the device status score ES1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3The specific methods are the same, and thus are not described herein again.
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8。
Base score ER based on device reliabilitybThe first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2The third equipment year occupation ratio coefficient x3The first equipment operation age correction coefficient cs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Obtaining a device reliability score ER, wherein ER ═ ERb×(x1×cs3+x2×cs2+x3×cs1)。
(2) The specific steps of acquiring the general defect score CD comprise:
acquiring general defect full score C of power transformation equipmentf。
Obtaining a general defect benchmark score C of a power transformation deviceb。
It should be noted that, a person skilled in the art can set the general defect full score C of the power transformation equipment according to actual conditionsfAnd general defect benchmark score CbThe specific values of (b) are not intended to limit the scope of the present invention.
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
Acquiring the general defect number n of the transformation equipment provided by the ith supplierc1。
According to the total number N of the transformer equipment provided by the ith supplieriAnd the number n of general defects of the transforming equipments provided by the ith supplierc1Obtaining a general defect rate basic value c of the power transformation equipment1Wherein, in the step (A),
Figure GDA0002360907400000121
acquiring a first equipment year occupation ratio coefficient x of power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3。
Exemplarily, the aboveObtaining a first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3And obtaining a first device age ratio coefficient x in the step of obtaining the device status score ES1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3The specific methods are the same, and thus are not described herein again.
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8。
According to the general defect rate basic value c1The first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2The third equipment year occupation ratio coefficient x3The first equipment operation age correction coefficient cs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Obtaining a correction value c of the general defect rate of the power transformation equipment2Wherein c is2＝c1×(x1×cs1+x2×cs2+x3×cs3)。
And acquiring the total number N of the transformer equipment in the network.
Acquiring general defect total number n of power transformation equipmentc。
According to the total number N of the on-grid stations and the total number N of the general defects of the transformation equipmentcObtaining the general defect rate basic value c of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure GDA0002360907400000122
obtaining a first whole-network equipment year occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3。
Illustratively, the above-mentioned first step is obtainedA whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3The method comprises the following specific steps:
respectively acquiring the total number n of the power transformation equipment in the 1 st operation year interval1And the total number n of the power transformation equipment in the 2 nd operation year interval2And the total number n of the power transformation equipment in the 3 rd operation year interval3Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 15 years of operation, and the 3 rd operation year interval is more than 15 years of operation.
According to the total number N of the on-grid transformer equipment and the total number N of the transformer equipment in the 1 st operation year interval1And the total number n of the power transformation equipment in the 2 nd operation year interval2And the total number n of the power transformation equipment in the 3 rd operation year interval3Obtaining a first whole network equipment year occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3Wherein, in the step (A),
Figure GDA0002360907400000131
obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8。
It is necessary to supplement that the above-mentioned first network-wide device operation age correction factor cy1The operation year correction coefficient of the power transformation equipment with the operation time of 0-5 years in the whole network and the operation year correction coefficient cy of the second whole network equipment2The operation year correction coefficient of the power transformation equipment with the operation time of 6 to 15 years in the whole network and the operation year correction coefficient cy of the third whole network equipment3And the operation year correction coefficient of the power transformation equipment with the operation time of more than 15 years in the whole network is obtained.
First equipment operational life repair similar to power transformation equipment provided by ith supplierPositive coefficient cs1The second equipment operation age correction coefficient cs2And a third equipment operation age correction coefficient cs3Since the shorter the operation period of the power transformation equipment, the more reference value the evaluation of the operation quality of the power transformation equipment, the correction coefficient cy of the operation period of the first whole network equipment1The value of (a) is maximum, and the second whole network equipment operation age correction coefficient cy2Is less than the first equipment operation year correction coefficient cy1The value of (a), the third whole network equipment operation age correction coefficient cy3The value of (a) is minimal.
According to the general defect rate basic value c of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2Third whole network equipment age ratio coefficient y3The operation age correction coefficient cy of the first whole network equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Obtaining the general defect rate correction value c of the whole network of the power transformation equipment4Wherein c is4＝c3×(y1×cy1+y2×cy2+y3×cy3)。
Correcting value c according to general defect rate of whole network4Obtaining a critical reserve N for the occurrence of a general defect of the transformation equipmentccWherein, in the step (A),
Figure GDA0002360907400000141
according to the general defect full score CfGeneral Defect benchmark score CbGeneral defect rate correction value c2And the correction value c of the general defect rate of the whole network4A generic defect score CD is obtained, wherein,
when c is going to2When equal to 0, if Ni≤NccIf CD is equal to CbIf N is presenti＞NccIf CD is equal to Cf；
When c is going to2≥c4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000142
when c is going to2＜c4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000143
(3) the specific steps of obtaining the emergency defect score UD comprise:
acquiring emergency defect full-scale U of power transformation equipmentf。
Obtaining emergency defect benchmark sub-U of power transformation equipmentb。
It should be noted that, those skilled in the art can set the full fraction U of the emergency defect of the power transformation equipment according to the actual situationfAnd an emergency defect reference branch UbThe specific values of (b) are not intended to limit the scope of the present invention.
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
Acquiring the number n of emergency defects of the power transformation equipment provided by the ith supplieru1。
According to the total number N of the transformer equipment provided by the ith supplieriAnd the number n of emergency defects of the power transformation equipment provided by the ith supplieru1Obtaining the basic value u of the emergency defect rate of the power transformation equipment1Wherein, in the step (A),
Figure GDA0002360907400000144
acquiring a first equipment year occupation ratio coefficient x of power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3。
Illustratively, the above-mentioned obtaining the first device age ratio coefficient x1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3And obtaining a first device age ratio coefficient x in the step of obtaining the device status score ES1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3The concrete method of (1) is the same, so thatAnd will not be described in detail.
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8。
According to the emergency defect rate basic value u1The first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2The third equipment year occupation ratio coefficient x3The first equipment operation age correction coefficient cs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Obtaining an emergency defect rate correction value u for the power transformation equipment2Wherein u is2＝u1×(x1×cs1+x2×cs2+x3×cs3)。
And acquiring the total number N of the transformer equipment in the network.
Acquiring total number n of emergency defects of power transformation equipmentu。
According to the total number N of the on-grid stations and the total number N of the emergency defects of the power transformation equipmentuObtaining the basic value u of the emergency defect rate of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure GDA0002360907400000151
obtaining a first whole-network equipment year occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3。
Illustratively, the above-mentioned obtaining the first network-wide device age ratio coefficient y1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3And acquiring the first whole network equipment age ratio coefficient y in the step of acquiring the general defect fraction CD of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3Tool (A)The methods are the same, and thus are not described herein.
Obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8。
According to the basic value u of the emergency defect rate of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2Third whole network equipment age ratio coefficient y3The operation age correction coefficient cy of the first whole network equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Obtaining the whole network emergency defect rate correction value u of the power transformation equipment4Wherein u is4＝u3×(y1×cy1+y2×cy2+y3×cy3)。
According to the corrected value c of the emergency defect rate of the whole network4Obtaining a critical reserve N for the occurrence of an emergency defect of the transformation equipmentcuWherein, in the step (A),
Figure GDA0002360907400000161
according to the emergency defect full score UfThe emergency defect reference is divided into UbAnd an emergency defect rate correction value u2And the total network emergency defect rate correction value u4And obtaining an emergency defect score UD, wherein,
when u is2When equal to 0, if Ni≤NcuIf UD is equal to UbIf N is presenti＞NcuIf UD is equal to Uf；
When u is2≥u4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000162
when u is2＜u4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000163
(4) the method comprises the following specific steps of:
obtaining the major defect full score M of the power transformation equipmentf。
Obtaining major defect benchmark M of power transformation equipmentb。
It should be noted that, those skilled in the art can set the full score M of the major defect of the power transformation equipment according to the actual situationfAnd major defect benchmark score MbThe specific values of (b) are not intended to limit the scope of the present invention.
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri。
Obtaining the number n of major defects of the power transformation equipment provided by the ith supplierm1。
According to the total number N of the transformer equipment provided by the ith supplieriAnd the number n of significant defects of the power transformation equipment provided by the ith supplierm1Obtaining the major defect rate basic value m of the power transformation equipment1Wherein, in the step (A),
Figure GDA0002360907400000171
acquiring a first equipment year occupation ratio coefficient x of power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3。
Illustratively, the above-mentioned obtaining the first device age ratio coefficient x1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3And obtaining a first device age ratio coefficient x in the step of obtaining the device status score ES1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3The specific methods are the same, and thus are not described herein again.
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1The second operating life correction systemNumber cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8。
According to the major defect rate basic value m1The first equipment year occupation ratio coefficient x1The second equipment year occupation ratio coefficient x2The third equipment year occupation ratio coefficient x3The first equipment operation age correction coefficient cs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Obtaining the major defect rate correction value m of the power transformation equipment2Wherein m is2＝m1×(x1×cs1+x2×cs2+x3×cs3)。
And acquiring the total number N of the transformer equipment in the network.
Acquiring the total number n of major defects of the power transformation equipmentm。
According to the total number N of the on-grid stations and the total number N of the major defects of the power transformation equipmentmObtaining the basic value m of the major defect rate of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure GDA0002360907400000172
obtaining a first whole-network equipment year occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3。
Illustratively, the above-mentioned obtaining the first network-wide device age ratio coefficient y1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3And acquiring the first whole network equipment age ratio coefficient y in the step of acquiring the general defect fraction CD of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3The specific methods are the same, and thus are not described herein again.
Obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1Second full-network equipmentLine age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8。
According to the major defect rate basic value m of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2Third whole network equipment age ratio coefficient y3The operation age correction coefficient cy of the first whole network equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Obtaining the whole network major defect rate correction value m of the power transformation equipment4Wherein m is4＝m3×(y1×cy1+y2×cy2+y3×cy3)。
Correcting value m according to gross defect rate of whole network4Obtaining critical reserve N of the power transformation equipment for generating major defectscmWherein, in the step (A),
Figure GDA0002360907400000181
according to the major defect full score MfMajor defect benchmark MbAnd a correction value m of the major defect rate2And gross defect rate correction value m of whole network4And a significant defect score, MD, is obtained, wherein,
when m is2When equal to 0, if Ni≤NcmThen MD ═ MbIf N is presenti＞NcmThen MD ═ Mf；
When m is2≥m4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000182
when m is2＜m4When the temperature of the water is higher than the set temperature,
Figure GDA0002360907400000183
by determining the cost index COE of the power transformation equipment in the four aspects, the comprehensiveness of the obtained cost index COE can be improved, and the comprehensiveness of the operation quality index EQE of the operation quality of the power transformation equipment is further improved.
It should be noted that, the specific values of the efficiency index EOE, the risk index ROE and the cost index COE are not innovations of the present invention, and the present invention combines the efficiency index EOE, the risk index ROE and the cost index COE to comprehensively evaluate the operation quality of the power transformation equipment, thereby facilitating the working personnel to make operation and maintenance plans for the power transformation equipment provided by different suppliers, and also providing guidance for the type selection of the power transformation equipment.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A method for evaluating the operation quality of power transformation equipment is characterized by comprising the following steps:
acquiring operation parameters of the power transformation equipment;
obtaining an efficiency index EOE of the power transformation equipment, a risk index ROE of the power transformation equipment and a cost index COE of the power transformation equipment according to the operation parameters;
obtaining an operation quality index EQE of the power transformation equipment according to the efficiency index EOE, the risk index ROE and the cost index COE, wherein the EQE is EOE + ROE + COE;
the efficiency index EOE comprises an equipment retention fraction EI of the power transformation equipment;
the specific steps for obtaining the device holding quantity fraction EI comprise:
obtaining the equipment holding capacity basic EI of the power transformation equipmentb；
Acquiring full-scale EI (electronic impedance element) of equipment holding capacity of power transformation equipmentf；
Obtaining presence of the power transformation equipment provided by an ith supplierTotal number of network stations Ni；
According to the total number N of the transformer equipment in the network provided by the ith supplieriObtaining the maximum value N of the total number of the on-grid transformer equipment provided by the suppliermaxWherein N ismax＝max(Ni)；
Substantially dividing EI according to the equipment holding quantitybThe equipment holds full EIfAnd a total number N of on-grid devices of the substation equipment provided by the ith supplieriAnd a maximum value N of the total number of the transformer equipment in the network provided by the suppliermaxObtaining the device holding quantity fraction EI, wherein,
Figure FDA0002378043560000011
the specific steps for obtaining the risk indicator ROE include:
acquiring an equipment fault fraction EF of the power transformation equipment;
acquiring an equipment state score ES of the power transformation equipment;
acquiring a batch defect fraction BD of the power transformation equipment;
obtaining the risk index ROE according to the equipment fault score EF, the equipment state score ES and the batch defect score BD, wherein ROE is EF + ES-BD;
the specific steps for obtaining the cost index COE include:
acquiring an equipment reliability score ER of the power transformation equipment;
acquiring a general defect score CD of the power transformation equipment;
acquiring an emergency defect score UD of the power transformation device;
acquiring a major defect fraction MD of the power transformation equipment;
obtaining the cost index COE according to the device reliability score ER, the general defect score CD, the urgent defect score UD and the major defect score MD, wherein COE is ER + CD + UD + MD.
2. The method for evaluating the operation quality of the power transformation equipment as recited in claim 1, wherein the step of obtaining the equipment fault score EF comprises:
acquiring the fault full score F of the power transformation equipmentf；
Acquiring a fault reference point F of the power transformation equipmentb；
Acquiring the total number N of the on-grid transformer equipment;
acquiring the total equipment fault times n of the power transformation equipment;
acquiring the total network fault rate f of the power transformation equipment according to the total number N of the on-network devices and the total number N of equipment faultsnWherein, in the step (A),
Figure FDA0002378043560000021
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Respectively obtaining the number n of equipment faults in the 1 st operation year interval of the power transformation equipment provided by the ith supplier1And the 2 nd operation year interval equipment failure times n2And the number n of equipment faults in the 3 rd operation year interval3And the 4 th operation year interval equipment failure frequency n4And the number n of equipment faults in the 5 th operation year interval5Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 10 years of operation, the 3 rd operation year interval is 11 to 15 years of operation, the 4 th operation year interval is 16 to 20 years of operation, and the 5 th operation year interval is more than 20 years of operation;
according to the number n of equipment faults in the 1 st operation year interval1The number n of equipment faults in the 2 nd operating life interval2And the number n of equipment faults in the 3 rd operation year interval3And the number n of equipment faults in the 4 th operation year interval4And the number n of equipment faults in the 5 th operation year interval5Acquiring the total equipment failure times n of the power transformation equipment provided by the ith supplierFWherein n isF＝n1+n2+n3+n4+n5；
According to the total number N of the transformer equipment in the network provided by the ith supplieriAnd the total number n of equipment failures of the power transformation equipment provided by the ith supplierFObtaining a failure rate f of the power transformation equipment provided by the ith suppliersWherein, in the step (A),
Figure FDA0002378043560000031
acquiring the total number F of the power transformation equipment which is provided by the ith supplier and has no faulti；
According to the total number F of the power transformation equipment which is provided by the ith supplier and has no faultiObtaining a maximum value F of the total number of the power transformation equipment which is provided by the supplier and has no faultmaxWherein F ismax＝max(Fi)；
According to the fault full score FfThe fault reference point FbThe failure rate f of the whole networknThe number n of equipment faults in the 1 st operating life interval1The number n of equipment faults in the 2 nd operating life interval2And the number n of equipment faults in the 3 rd operation year interval3And the number n of equipment faults in the 4 th operation year interval4And the number n of equipment faults in the 5 th operation year interval5And the total number n of equipment failures of the power transformation equipment provided by the ith supplierFA failure rate f of the power transformation equipment provided by the ith suppliersAnd a total number F of the power transformation equipment which is not failed and provided by the ith supplieriAnd a maximum value F of the total number of the power transformation devices provided by the supplier without failuremaxObtaining the equipment failure score EF, wherein,
when n isFWhen the content is equal to 0, the content,
Figure FDA0002378043560000032
when n isFNot equal to 0, and fs≥fnWhen EF is equal to Fb-(4×n1+3×n2+2×n3+1×n4+1×n5)；
When n isFNot equal to 0, and fs＜fnWhen the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000041
3. the method for evaluating the operation quality of the transformation equipment according to claim 1, wherein the step of obtaining the equipment state score ES comprises:
respectively acquiring the total number ES of the power transformation equipment in the normal state provided by the ith supplier1Total number of said power transformation devices in attention status ES2And total number of the power transformation devices ES in abnormal state3；
The total number ES of the power transformation equipment according to the normal state1The total number ES of the substation devices in the attention state2And the total number ES of the power transformation devices in the abnormal state3Obtaining a basic score ES of the equipment state of the power transformation equipmentbWherein, in the step (A),
Figure FDA0002378043560000042
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Obtaining a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3；
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1The second equipment operation age correction coefficient cs2And a third equipment operation age correction coefficient cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8；
According to the equipment state basePresent score ESbThe first equipment year occupation ratio coefficient x1The second equipment age ratio coefficient x2The third equipment year occupation ratio coefficient x3The operating life correction coefficient cs of the first equipment1The operating life correction coefficient cs of the second equipment2And the third equipment operation age correction coefficient cs3Obtaining the device status score ES, wherein ES is ESb×(x1×cs3+x2×cs2+x3×cs1)。
4. The method for evaluating the operation quality of the transformation equipment according to claim 1, wherein the step of obtaining the batch defect score BD comprises:
acquiring the number n of batch defect cases found by the operation unit processed by the ith supplier1；
Acquiring the number n of batch defect cases found by a running unit which is not processed by the ith supplier2；
The number n of batch-type defective cases found according to the operation unit processed by the ith supplier1And the number n of batch-type defective cases found by the operation unit which is not processed by the ith supplier2Obtaining the batch defect fraction BD, wherein BD is 2 × n1+8×n2。
5. The method for evaluating the operation quality of the power transformation equipment as recited in claim 1, wherein the step of obtaining the equipment reliability score ER comprises:
acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Obtaining the statistical year n of the power transformation equipmentr；
Respectively acquiring the major repair outage hours t of the power transformation equipment provided by the ith supplier1Hours t of minor repair outage2Number of first class non-stop hours t3And the second class non-stop hours t4And third type non-stop hoursNumber t5；
According to the total number N of the transformer equipment in the network provided by the ith supplieriAnd the statistical year n of the power transformation equipment provided by the ith supplierrThe number of hours of the major repair stoppage t1The number of hours t of the minor repair outage2The number of first-class non-stop hours t3The second type of non-stop hours t4And the number of non-stop hours t of the third type5Obtaining the overhaul shutdown coefficient r of the power transformation equipment provided by the ith supplier1Minor repair shutdown coefficient r2First class of non-stop coefficients r3Class II non-stop coefficient r4And a third class of non-stop coefficients r5Wherein, in the step (A),
Figure FDA0002378043560000051
Figure FDA0002378043560000052
according to the overhaul shutdown coefficient r1The minor repair outage coefficient r2The first class of non-stop coefficients r3The second-class non-stop coefficient r4And said third type of non-stop coefficient r5Obtaining the equipment reliability basic score ER of the power transformation equipmentbWherein ERb＝3×r1+1×r2+3×r3+2×r4+1×r5；
Obtaining a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3；
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8；
A basic score ER according to the equipment reliabilitybThe first deviceAge ratio coefficient x1The second equipment age ratio coefficient x2The third equipment year occupation ratio coefficient x3The operating life correction coefficient cs of the first equipment1The second operating life correction coefficient cs2And the third operating age correction factor cs3Obtaining the device reliability score ER, wherein ER ═ ERb×(x1×cs3+x2×cs2+x3×cs1)。
6. The method for evaluating the operation quality of the power transformation equipment as claimed in claim 1, wherein the specific step of obtaining the general defect score CD comprises:
acquiring the general defect full score C of the power transformation equipmentf；
Obtaining a general defect benchmark score C of the power transformation equipmentb；
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Acquiring the general defect number n of the power transformation equipment provided by the ith supplierc1；
According to the total number N of the transformer equipment in the network provided by the ith supplieriAnd a general defect number n of the power transformation equipment provided by the ith supplierc1Obtaining a general defect rate basic value c of the power transformation equipment1Wherein, in the step (A),
Figure FDA0002378043560000061
obtaining a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3；
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8；
According to the general defect rate basic value c1The first equipment year occupation ratio coefficient x1The second equipment age ratio coefficient x2The third equipment year occupation ratio coefficient x3The operating life correction coefficient cs of the first equipment1The second operating life correction coefficient cs2And the third operating age correction factor cs3Obtaining a general defect rate correction value c of the power transformation equipment2Wherein c is2＝c1×(x1×cs1+x2×cs2+x3×cs3)；
Acquiring the total number N of the on-grid transformer equipment;
acquiring the total number n of general defects of the power transformation equipmentc；
According to the total number N of the on-grid stations of the power transformation equipment and the total number N of the general defectscObtaining the basic value c of the general defect rate of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure FDA0002378043560000071
acquiring a first whole-network equipment year-limit occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3；
Obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8；
According to the general defect rate basic value c of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2The third whole network equipment age ratio coefficient y3The first whole network equipment is repaired in the operating lifePositive coefficient cy1And the second full-network equipment operation age correction coefficient cy2And the third network-wide device operation age correction coefficient cy3Obtaining the general defect rate correction value c of the whole network of the power transformation equipment4Wherein c is4＝c3×(y1×cy1+y2×cy2+y3×cy3)；
According to the general defect rate correction value c of the whole network4Obtaining a critical holding quantity N of the power transformation equipment for generating general defectsccWherein, in the step (A),
Figure FDA0002378043560000081
according to the general defect full score CfThe general defect benchmark score CbThe general defect rate correction value c2And said net-wide general defect rate correction value c4Obtaining the generic defect score CD, wherein,
when c is going to2When equal to 0, if Ni≤NccIf CD is equal to CbIf N is presenti＞NccIf CD is equal to Cf；
When c is going to2≥c4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000082
when c is going to2＜c4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000083
7. the method for evaluating the operation quality of the power transformation equipment as recited in claim 1, wherein the step of obtaining the emergency defect score UD comprises the steps of:
acquiring the full fraction U of the emergency defects of the power transformation equipmentf；
Acquiring the emergency defect benchmark sub-U of the power transformation equipmentb；
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Acquiring the number n of emergency defects of the power transformation equipment provided by the ith supplieru1；
According to the total number N of the transformer equipment in the network provided by the ith supplieriAnd the number n of emergency defects of the power transformation equipment provided by the ith supplieru1Obtaining the basic value u of the emergency defect rate of the power transformation equipment1Wherein, in the step (A),
Figure FDA0002378043560000084
obtaining a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3；
Obtaining a first equipment operation age correction coefficient cs of the power transformation equipment provided by the ith supplier1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8；
According to the emergency defect rate basic value u1The first equipment year occupation ratio coefficient x1The second equipment age ratio coefficient x2The third equipment year occupation ratio coefficient x3The operating life correction coefficient cs of the first equipment1The second operating life correction coefficient cs2And the third operating age correction factor cs3Obtaining an emergency defect rate correction value u for the power transformation equipment2Wherein u is2＝u1×(x1×cs1+x2×cs2+x3×cs3)；
Acquiring the total number N of the on-grid transformer equipment;
acquiring the total number n of the emergency defects of the power transformation equipmentu；
According to the total number N of the on-line stations of the power transformation equipment and the emergency gapTotal number of traps nuObtaining the basic value u of the emergency defect rate of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure FDA0002378043560000091
acquiring a first whole-network equipment year-limit occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3；
Obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8；
According to the basic value u of the emergency defect rate of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2The third whole network equipment age ratio coefficient y3The operation age correction coefficient cy of the first whole network equipment1And the second full-network equipment operation age correction coefficient cy2And the third network-wide device operation age correction coefficient cy3Obtaining a whole-network emergency defect rate correction value u of the power transformation equipment4Wherein u is4＝u3×(y1×cy1+y2×cy2+y3×cy3)；
According to the total network emergency defect rate correction value c4Obtaining a critical reserve N of the emergency defect of the power transformation equipmentcuWherein, in the step (A),
Figure FDA0002378043560000101
according to the full mark U of the emergency defectfThe emergency defect reference is divided into UbThe emergency defect rate correction value u2And said full network emergency defect rate correction value u4Obtaining the urgent defect score UD, wherein,
when u is2When equal to 0, if Ni≤NcuIf UD is equal to UbIf N is presenti＞NcuIf UD is equal to Uf；
When u is2≥u4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000102
when u is2＜u4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000103
8. the method for evaluating the operation quality of the transformation equipment according to claim 1, wherein the step of obtaining the major defect score MD comprises:
acquiring the gross defect full score M of the power transformation equipmentf；
Obtaining the major defect benchmark score M of the power transformation equipmentb；
Acquiring the total number N of the transformer equipment in the network provided by the ith supplieri；
Acquiring the number n of major defects of the power transformation equipment provided by the ith supplierm1；
According to the total number N of the transformer equipment in the network provided by the ith supplieriAnd the number n of significant defects of the power transformation equipment provided by the ith supplierm1Obtaining a fundamental value m of the major defect rate of the power transformation equipment1Wherein, in the step (A),
Figure FDA0002378043560000104
obtaining a first equipment age ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3；
Obtaining a first equipment operation age correction coefficient of the power transformation equipment provided by the ith suppliercs1A second operating life correction coefficient cs2And a third operating age correction factor cs3Wherein cs is1＝1.2，cs2＝1，cs3＝0.8；
According to the critical defect rate basic value m1The first equipment year occupation ratio coefficient x1The second equipment age ratio coefficient x2The third equipment year occupation ratio coefficient x3The operating life correction coefficient cs of the first equipment1The second operating life correction coefficient cs2And the third operating age correction factor cs3Obtaining a major defect rate correction value m of the power transformation equipment2Wherein m is2＝m1×(x1×cs1+x2×cs2+x3×cs3)；
Acquiring the total number N of the on-grid transformer equipment;
acquiring the total number n of major defects of the power transformation equipmentm；
According to the total number N of the on-grid stations and the total number N of the major defects of the power transformation equipmentmObtaining the basic value m of the major defect rate of the whole network of the power transformation equipment3Wherein, in the step (A),
Figure FDA0002378043560000111
acquiring a first whole-network equipment year-limit occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3；
Obtaining a first whole-network equipment operation age correction coefficient cy of the power transformation equipment1And the second whole network equipment operation age correction coefficient cy2And the operation age correction coefficient cy of the third network-wide equipment3Wherein, cy1＝1.2，cy2＝1，cy3＝0.8；
According to the major defect rate basic value m of the whole network3The first whole network equipment age ratio coefficient y1The second whole network equipment age ratio coefficient y2The third whole network equipment age ratio coefficient y3The operation age correction coefficient cy of the first whole network equipment1And the second full-network equipment operation age correction coefficient cy2And the third network-wide device operation age correction coefficient cy3Obtaining a whole-network major defect rate correction value m of the power transformation equipment4Wherein m is4＝m3×(y1×cy1+y2×cy2+y3×cy3)；
According to the gross defect rate correction value m of the whole network4Obtaining critical reserve N of the power transformation equipment with serious defectscmWherein, in the step (A),
Figure FDA0002378043560000112
according to the gross defect full score MfThe major defect benchmark score MbThe major defect rate correction value m2And the gross defect rate correction value m of the whole network4And obtaining the major defect score MD, wherein,
when m is2When equal to 0, if Ni≤NcmThen MD ═ MbIf N is presenti＞NcmThen MD ═ Mf；
When m is2≥m4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000121
when m is2＜m4When the temperature of the water is higher than the set temperature,
Figure FDA0002378043560000122
9. a transformation equipment operation quality evaluation method according to claim 3 or any one of claims 5 to 8, wherein a first equipment age ratio coefficient x of the transformation equipment provided by an ith supplier is obtained1The second equipment year occupation ratio coefficient x2And third equipment age ratioCoefficient x3The method comprises the following specific steps:
respectively acquiring the number n of the transformer equipment in the 1 st operation year interval provided by the ith supplier1And the number n of the power transformation equipment in the 2 nd operation year interval2And the number n of the power transformation equipment in the 3 rd operation year interval3Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 15 years of operation, and the 3 rd operation year interval is more than 15 years of operation;
according to the total number N of the transformer equipment in the network provided by the ith supplieriAnd the number n of the transformer equipment in the 1 st operation year interval provided by the ith supplier1And the number n of the power transformation equipment in the 2 nd operation year interval provided by the ith supplier2And the number n of the power transformation equipment in the 3 rd operation year interval provided by the ith supplier3Obtaining a first equipment year occupation ratio coefficient x of the power transformation equipment provided by the ith supplier1The second equipment year occupation ratio coefficient x2And a third device age ratio coefficient x3Wherein, in the step (A),
Figure FDA0002378043560000123
10. a transformation equipment operation quality evaluation method according to any one of claims 6 to 8, characterized by obtaining a first whole grid equipment age ratio coefficient y of the transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3The method comprises the following specific steps:
respectively acquiring the total number n of the transformer equipment in the 1 st operation year interval1And the total number n of the power transformation equipment in the 2 nd operation year interval2And the total number n of the power transformation equipment in the 3 rd operation year interval3Wherein, the 1 st operation year interval is 0 to 5 years of operation, the 2 nd operation year interval is 6 to 15 years of operation, and the 3 rd operation year interval is more than 15 years of operation;
according toThe total number N of the on-grid transformer equipment and the total number N of the transformer equipment in the 1 st operation year interval1And the total number n of the power transformation equipment in the 2 nd operation year interval2And the total number n of the power transformation equipment in the 3 rd operation year interval3Obtaining a first whole network equipment year occupation ratio coefficient y of the power transformation equipment1The second whole network equipment age ratio coefficient y2And the third whole network equipment age ratio coefficient y3Wherein, in the step (A),
Figure FDA0002378043560000131
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