CN108957317A - Detection method, device, computer and the storage medium of pressurized-water reactor nuclear power plant generating set bearing shell - Google Patents
Detection method, device, computer and the storage medium of pressurized-water reactor nuclear power plant generating set bearing shell Download PDFInfo
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- CN108957317A CN108957317A CN201810574290.9A CN201810574290A CN108957317A CN 108957317 A CN108957317 A CN 108957317A CN 201810574290 A CN201810574290 A CN 201810574290A CN 108957317 A CN108957317 A CN 108957317A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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Abstract
This application involves detection method, device, computer equipment and the readable storage medium storing program for executing of a kind of pressurized-water reactor nuclear power plant generating set bearing shell, a kind of detection method of pressurized-water reactor nuclear power plant generating set bearing shell, generating set includes first bearing shell and at least two second bearing shells, first bearing shell is ground connection bearing shell, and the above method includes: the abnormal shaft current waveform of generator when recording bearing shell failure；When generating set works normally, by the second bearing shell analogue ground, and corresponding simulation shaft current waveform is recorded；Based on abnormal shaft current waveform and simulation shaft current waveform, to determine the second bearing shell to break down.The detection method of above-mentioned pressurized-water reactor nuclear power plant generating set bearing shell, shaft current waveform when by record bearing shell failure, and it compares with the shaft current waveform of bearing shell analogue ground, so that it is determined that the source of shaft current and the bearing shell to break down, the subsequent processing to failure is facilitated, the safety of pressurized-water reactor nuclear power plant generating set is improved.
Description
Technical field
The present invention relates to the technical fields of million kilowatt nuclear power station generating set, more particularly to a kind of compressed water reactor nuclear power
It stands detection method, device, computer equipment and the computer readable storage medium of generating set bearing shell.
Background technique
In the generating set of pressurized-water reactor nuclear power plant, generator's motor shaft, which generally passes through, to be realized at one bearing shell of carbon brush and a little connects
Ground prevents from causing bearing shell oil film and insulation breakdown to guarantee that shaft voltage is in reduced levels.But the axis except the bearing shell of ground connection
Watt occur being grounded or insulating decline the case where when, will cause big axis and multipoint earthing, due to the presence of shaft voltage, meeting on big axis occur
There is shaft current, to cause damages to generator, so that influencing the safety of nuclear power station.
Traditional generating set bearing shell detection be by the way that current transformer is arranged in earth-return circuit, to the shaft current of big axis into
Row monitoring, sounds an alarm when shaft current is above standard.Such monitoring method can only know that multipoint earthing occurs for big axis, without
The bearing shell position that can determine that the source of shaft current and specifically break down, so that the subsequent treatment effeciency to failure is influenced, it is right
It is this kind of very unsuitable to the higher generating set of security requirement in such as pressurized-water reactor nuclear power plant.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide a kind of detection of pressurized-water reactor nuclear power plant generating set bearing shell
Method, apparatus, computer equipment and computer readable storage medium can determine the source of shaft current, and specific generation
The bearing shell position of failure.
A kind of detection method of pressurized-water reactor nuclear power plant generating set bearing shell, the generating set include first bearing shell with
And at least two second bearing shells, first bearing shell are ground connection bearing shell, which comprises
Record the abnormal shaft current waveform of generator when bearing shell failure；
When the generating set works normally, by the second bearing shell analogue ground, and corresponding simulation axis electricity is recorded
Flow waveform；
Based on the abnormal shaft current waveform and the simulation shaft current waveform, to determine the second bearing shell to break down.
The detection method of above-mentioned pressurized-water reactor nuclear power plant generating set bearing shell, shaft current wave when by record bearing shell failure
Shape, and comparing with the shaft current waveform of bearing shell analogue ground, so that it is determined that the source of shaft current and the axis to break down
Watt, the subsequent processing to failure is facilitated, the safety of pressurized-water reactor nuclear power plant generating set is improved.
It is described when the generating set works normally in one of the embodiments, second bearing shell simulation is connect
Ground, and record corresponding simulation shaft current waveform and include:
When the generating set works normally, respectively by the second bearing shell analogue ground one by one；
Record the simulation shaft current waveform of each second bearing shell.
It is described in one of the embodiments, to be based on the abnormal shaft current waveform and the simulation shaft current waveform, with
Determine that the second bearing shell to break down includes:
Compare the wave character of the abnormal shaft current waveform and the simulation shaft current waveform；
If the simulation shaft current waveform of second bearing shell is consistent with the abnormal shaft current wave character, it is determined that this
Two bearing shells are the second bearing shell to break down.
The wave character includes at least one of waveform frequency and alternating current-direct current ingredient in one of the embodiments,.
It include in one of the embodiments, passing through the analogue ground of temporary grounding tool by the second bearing shell analogue ground
And at least one declined by adjustable resistor analog insulation.
A kind of detection device of pressurized-water reactor nuclear power plant generating set bearing shell, the generating set include first bearing shell with
And at least two second bearing shells, first bearing shell are ground connection bearing shell, described device includes:
Exception record module, the abnormal shaft current waveform of generator when for recording bearing shell failure；
Analog record module, for by the second bearing shell analogue ground, and remembering when the generating set works normally
The corresponding simulation shaft current waveform of record；
Waveform comparison module, for being sent out with determining based on the abnormal shaft current waveform and the simulation shaft current waveform
Second bearing shell of raw failure.
The detection device of above-mentioned pressurized-water reactor nuclear power plant generating set bearing shell, shaft current wave when by record bearing shell failure
Shape, and comparing with the shaft current waveform of bearing shell analogue ground, so that it is determined that the source of shaft current and the axis to break down
Watt, the subsequent processing to failure is facilitated, the safety of pressurized-water reactor nuclear power plant generating set is improved.
The analog record module includes: in one of the embodiments,
Ground unit one by one, for respectively simulating second bearing shell one by one when the generating set works normally
Ground connection；
Waveform recording unit, for recording the simulation shaft current waveform of each second bearing shell.
It is in embodiment at one, the waveform comparison module includes:
Characteristics comparing unit, the waveform for the abnormal shaft current waveform and the simulation shaft current waveform are special
Sign；
Failure determination unit, if special for the simulation shaft current waveform of second bearing shell and the abnormal shaft current waveform
Sign is consistent, it is determined that second bearing shell is the second bearing shell to break down.
A kind of computer equipment can be run on a memory and on a processor including memory, processor and storage
The step of computer program, the processor realizes above-mentioned any one the method when executing described program.
A kind of computer readable storage medium, is stored thereon with computer program, realization when which is executed by processor
The step of above-mentioned any one the method.
Detailed description of the invention
Fig. 1 is the flow diagram of the detection method of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment；
Fig. 2 is the structural schematic diagram of generating set in one embodiment；
The process signal that Fig. 3 is the detection method step S140 of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment
Figure；
The process signal that Fig. 4 is the detection method step S160 of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment
Figure；
Fig. 5 is the waveform diagram of abnormal shaft current and simulation shaft current in one embodiment；
Fig. 6 is the structural schematic diagram of the detection device of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment；
Fig. 7 is the structural schematic diagram of analog record module in one embodiment；
Fig. 8 is the structural schematic diagram of waveform comparison module in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
Fig. 1 is the flow diagram of the detection method of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment, presses water
It include first bearing shell and at least two second bearing shells in reactor of nuclear power plant generating set, the first bearing shell is ground connection bearing shell.?
In one embodiment, the structure of generating set is as shown in Fig. 2, generating set 200 can be a turbine LP rotors, power generation
Unit 200 includes generator's motor shaft 220, bearing shell 221-228, the low pressure (LP) cylinder 244,2 of high intermediate pressure cylinder 242,1 low pressure (LP) cylinder 246, hair
Motor 260 and exciter 280.Its intermediate bushing 221,222 is separately positioned on high intermediate pressure cylinder two sides, and bearing shell 223,224 is set respectively
It sets No. 1 low pressure (LP) cylinder two sides, bearing shell 225,226 is separately positioned on No. 2 low pressure (LP) cylinder two sides, and bearing shell 227,228 is separately positioned on hair
Motor two sides.
It is provided with normal big axis grounding point at bearing shell 227, entire turbine shafting is carried out one using grounding carbon brush
Point ground connection, it is ensured that shaft voltage is in reduced levels.Bearing shell 227 is that the first bearing shell is grounded bearing shell, bearing shell 221-226 and axis
Watts 228 be the second bearing shell.Shaft current measuring device is provided at the earth-return circuit of bearing shell 227, for the axis electricity to big axis 220
Stream is monitored, and when shaft current, which is higher than, to be pre-seted, can issue corresponding alarm.It is understood that the presurized water reactor core of the application
The detection method of power station generator set bearing shell is also applied for other kinds of generating set, and the bearing shell quantity of generating set is also unlimited
Fixed quantity in this present embodiment.
In one embodiment, as shown in Figure 1, a kind of detection method of pressurized-water reactor nuclear power plant generating set bearing shell, comprising:
Step S120: the abnormal shaft current waveform of generator when record bearing shell failure.
Specifically, when the failures such as ground connection or insulation decline occur for the bearing shell except the first bearing shell, such as bearing shell 221-
226 or bearing shell 228 in when there is the bearing shell of insulation decline or ground connection, will appear multipoint earthing on big axis 220, formed and generate axis electricity
Stream, shaft current measuring device monitor that excessively high shaft current sounds an alarm, record shaft current waveform at this time, and as different
Normal shaft current waveform saves.
Step S140: when generating set works normally, by the second bearing shell analogue ground, and corresponding simulation axis electricity is recorded
Flow waveform.
When alarm disappearance generating set restores normal operating conditions, analogue ground is carried out to the second bearing shell, and record mould
The simulation shaft current of big axis 220 when quasi- ground connection.For multiple second bearing shells, mould can be carried out to each second bearing shell with this respectively
Quasi- ground connection can also carry out analogue ground to any two or any number of second bearing shells simultaneously again, to simulate all possibility
Bearing shell fault condition, record the shaft current waveform of every kind of analog case, and saved as simulation shaft current waveform.Simulation
Ground connection can be simulated by temporary grounding tool or adjustable resistor.It is understood that the acquisition of simulation shaft current
It can be carried out before bearing shell breaks down, as long as carrying out simulation in the case where generating set is worked normally to the second bearing shell and connecing
Ground can be obtained accurately simulation shaft current waveform.
Step S160: based on abnormal shaft current waveform and simulation shaft current waveform, to determine the second bearing shell to break down.
Specifically, it is obtaining abnormal shaft current waveform and is carrying out the simulation shaft current waveform of analogue ground to the second bearing shell
Afterwards, the simulation shaft current waveform of abnormal shaft current waveform and various analog cases can be compared, such as can passed through
Compare the figure registration of abnormal shaft current waveform and simulation shaft current waveform, or more abnormal shaft current waveform and simulation axis
The characteristics of image etc. of current waveform, if the simulation shaft current waveform of a certain analog case is approximate with abnormal shaft current waveform comparison
Or feature is consistent, then it is believed that one or more second bearing shell of analogue ground is physical presence failure in the case of this
Second bearing shell.
The detection method of above-mentioned pressurized-water reactor nuclear power plant generating set bearing shell, shaft current wave when by record bearing shell failure
Shape, and comparing with the shaft current waveform of bearing shell analogue ground, so that it is determined that the source of shaft current and the axis to break down
Watt, the subsequent processing to failure is facilitated, the safety of pressurized-water reactor nuclear power plant generating set is improved.
Fig. 3 is that the process of the step S140 of the detection method of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment is shown
Be intended to, in one embodiment, as shown in figure 3, step S140 specifically includes the following steps:
Step S142: when generating set works normally, respectively by the analogue ground one by one of the second bearing shell.
Step S144: the simulation shaft current waveform of each second bearing shell is recorded.
Specifically, since in actual use, the probability that multiple bearing shells break down simultaneously is smaller, majority of case lower axle
The generation of electric current is all because caused by the case where ground connection of some bearing shell or insulation decline.So all possible second axis
Watt fault condition simulates that carry out efficiency lower, and the progress analogue ground of multiple bearing shells is had higher risk simultaneously.Therefore
In actual use, only each second bearing shell need to be subjected to analogue ground respectively when generating set works normally, and recorded
Simulation shaft current waveform when each second bearing shell analogue ground, it is subsequent these simulation shaft current waveforms and note when breaking down
The abnormal shaft current waveform of record compares, so that it may find guilty culprit.
Fig. 4 is the flow diagram of step S160 in one embodiment, in one embodiment, as shown in figure 4, step
S160 specifically includes the following steps:
Step S162: the wave character of more abnormal shaft current waveform and simulation shaft current waveform.
Step S164: if the simulation shaft current waveform of second bearing shell is consistent with abnormal shaft current wave character, really
Fixed second bearing shell is the second bearing shell to break down.
Specifically, since in actual use, ground connection occurs for different bearing shells or insulation decline causes the electricity of shaft current
Flow different wave shape it is larger, so successively will to each second bearing shell carry out analogue ground and will simulation shaft current waveform respectively with
When abnormal shaft current waveform is compared, if it find that a simulation shaft current waveform coincides with abnormal shaft current waveform, or
Both persons wave character is completely the same, then it is believed that carrying out the second bearing shell of analogue ground corresponding to this simulation shaft current waveform
It is the second bearing shell that the failures such as ground connection or insulation decline occur, does not need to be further continued for that remaining second bearing shell is carried out to simulate to connect
The work on ground or waveform comparison can be further improved the efficiency of the second bearing shell fault detection.
In one embodiment, above-mentioned wave character includes at least one of waveform frequency and alternating current-direct current ingredient.
Specifically, Fig. 5 is the waveform diagram of abnormal shaft current and simulation shaft current in one embodiment, is occurred in record
Abnormal shaft current waveform when failure and after carrying out the simulation shaft current waveform of analogue ground to the second bearing shell, compares these waves
The wave character of shape, wave character can specifically include waveform frequency and alternating current-direct current ingredient etc., such as by the way that whether there is or not direct currents point
Amount, waveform are biased to the features such as that side of semiaxis and are judged.It is found in multiple simulation shaft current waveforms wherein electric with abnormal axis
The wave character for flowing waveform is closest or consistent, as shown in figure 5, wherein 320 exception to record in one embodiment
Shaft current waveform, 340 carry out the simulation shaft current waveform of analogue ground, the waveform of two waveforms for bearing shell a certain in the present embodiment
Frequency is closest, is all the AC wave shape of standard and superposition higher hamonic wave, no DC component, so 340 be electric with abnormal axis
The consistent simulation shaft current waveform of 320 wave character of waveform is flowed, can determine that simulation shaft current 340 carries out analogue ground accordingly
The second bearing shell be occur ground connection or insulation decline the second bearing shell, it is subsequent to be repaired or replaced for it.
It in one embodiment, include by the analogue ground of temporary grounding tool and passing through by the second bearing shell analogue ground
At least one of adjustable resistor analog insulation decline.
Specifically, it when carrying out analogue ground to the second bearing shell, can be connected to by temporary grounding tool at the second bearing shell
Analogue ground is directly carried out, it is exhausted to simulate the second bearing shell can also slowly to reduce resistance by adjustable resistor at the second bearing shell
Edge decline, to simulate the fault condition of the second bearing shell more fully hereinafter, keeps the subsequent judgement to abort situation more accurate.
Fig. 6 is the structural schematic diagram of the detection device of pressurized-water reactor nuclear power plant generating set bearing shell in one embodiment, one
In a embodiment, as shown in fig. 6, a kind of detection device 500 of pressurized-water reactor nuclear power plant generating set bearing shell, generating set includes one
A first bearing shell and at least two second bearing shells, the first bearing shell are ground connection bearing shell, and above-mentioned apparatus 500 includes: exception record mould
Block 520, the abnormal shaft current waveform of generator when for recording bearing shell failure；Analog record module 540, in generating set
When normal work, by the second bearing shell analogue ground, and corresponding simulation shaft current waveform is recorded；Waveform comparison module 560, is used for
Based on abnormal shaft current waveform and simulation shaft current waveform, to determine the second bearing shell to break down.
Specifically, exception record module 520 is when the second bearing shell failure shaft current monitoring device sounds an alarm, record power generation
The waveform recorded is sent to waveform comparison module 560 by the shaft current waveform of the big axis of unit.
Analog record module 540 carries out analogue ground to the second bearing shell under generating set normal operating conditions, and normal operating conditions can
When being that shaft current alarm disappearance generating set restores to stablize, it is also possible to be simulated in advance before bearing shell failure occurs.Mould
Quasi- logging modle 540 records the shaft current waveform of big axis in the case of every kind of analogue ground, and as simulation shaft current waveform hair
Give waveform comparison module 560.Waveform comparison module 560 is according to the abnormal shaft current waveform received and multiple simulation axis electricity
Waveform is flowed, the determining simulation shaft current waveform closest with abnormal shaft current waveform, then the simulation shaft current waveform is corresponding
The second bearing shell for carrying out analogue ground is the second bearing shell that the failures such as ground connection or insulation decline occur.
The detection device of above-mentioned pressurized-water reactor nuclear power plant generating set bearing shell, shaft current wave when by record bearing shell failure
Shape, and comparing with the shaft current waveform of bearing shell analogue ground, so that it is determined that the source of shaft current and the axis to break down
Watt, the subsequent processing to failure is facilitated, the safety of pressurized-water reactor nuclear power plant generating set is improved.
Fig. 7 is the structural schematic diagram of analog record module in one embodiment, in one embodiment, as shown in figure 8, mould
Quasi- logging modle 540 includes: ground unit 542 one by one, for when generating set works normally, respectively one by one by the second bearing shell
Analogue ground；Waveform recording unit 544, for recording the simulation shaft current waveform of each second bearing shell.
Specifically, analog record module includes ground unit 542 one by one and waveform recording unit 544, due to actually making
In, the probability that multiple bearing shells break down simultaneously is smaller, and all possible second bearing shell fault condition is simulated and carrys out efficiency
It is lower, and the progress analogue ground of multiple bearing shells is had into higher risk simultaneously.So in actual use, ground unit one by one
Each second bearing shell is successively carried out analogue ground respectively when generating set works normally by 542, and waveform recording unit 544 records
Simulation shaft current waveform when each second bearing shell progress analogue ground down, then these simulation shaft current waveforms are sent to waveform
Comparison module 560.
Fig. 8 is the structural schematic diagram of waveform comparison module in one embodiment, in one embodiment, as shown in figure 8, wave
Shape comparison module 560 includes: characteristics comparing unit 562, for comparing abnormal shaft current waveform and simulating the wave of shaft current waveform
Shape feature.Failure determination unit 564, if simulation shaft current waveform and abnormal shaft current wave character for second bearing shell
Unanimously, it is determined that second bearing shell is the second bearing shell to break down.
Specifically, waveform comparison module 560 includes characteristics comparing unit 562 and failure determination unit 564.Feature is more single
Member 562 checks that the wave character of received abnormal shaft current waveform and multiple simulation shaft current waveforms, wave character are specific
It may include waveform frequency and alternating current-direct current ingredient etc., and by the wave character of abnormal shaft current waveform and each simulation shaft current
The wave character of waveform compares.Failure determination unit 564 exists and abnormal shaft current wave in discovery simulation shaft current waveform
When the consistent simulation shaft current waveform of shape feature, that is, it can determine the of progress analogue ground corresponding to the simulation shaft current waveform
Two bearing shells are the second bearing shell that the failures such as ground connection or insulation decline occur, and can repair replacement etc. to this second bearing shell later
Processing.
In one embodiment, a kind of computer equipment is provided, which includes processor and memory, institute
It states memory and is stored with the computer program that can be run on a processor, when the computer program is executed by processor, can make
It obtains processor and executes following steps: the abnormal shaft current waveform of generator when record bearing shell failure；It is worked normally in generating set
When, by the second bearing shell analogue ground, and record corresponding simulation shaft current waveform；Based on abnormal shaft current waveform and simulation axis electricity
Waveform is flowed, to determine the second bearing shell to break down.
In one embodiment, a kind of computer readable storage medium is provided, is deposited on the computer readable storage medium
Computer program is contained, which may make processor to execute following steps when being executed by processor: being sent out when record bearing shell failure
The abnormal shaft current waveform of motor；When generating set works normally, by the second bearing shell analogue ground, and corresponding simulation is recorded
Shaft current waveform；Based on abnormal shaft current waveform and simulation shaft current waveform, to determine the second bearing shell to break down.
It is above-mentioned that the computer-readable restriction for depositing storage medium and computer equipment may refer to above for method
Specific restriction, details are not described herein.
It should be noted that those of ordinary skill in the art will appreciate that realizing all or part of stream in the above method
Journey is relevant hardware can be instructed to complete by computer program, which can be stored in one and computer-readable deposit
In storage media；Above-mentioned program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, above-mentioned storage is situated between
Matter can be magnetic disk, CD, read-only memory (Read-Only Memory, abbreviation ROM) or random access memory
(Random Access Memory, abbreviation RAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of detection method of pressurized-water reactor nuclear power plant generating set bearing shell, which is characterized in that the generating set includes one
First bearing shell and at least two second bearing shells, first bearing shell are ground connection bearing shell, which comprises
Record the abnormal shaft current waveform of generator when bearing shell failure；
When the generating set works normally, by the second bearing shell analogue ground, and corresponding simulation shaft current wave is recorded
Shape；
Based on the abnormal shaft current waveform and the simulation shaft current waveform, to determine the second bearing shell to break down.
2., will be described the method according to claim 1, wherein described when the generating set works normally
Second bearing shell analogue ground, and record corresponding simulation shaft current waveform and include:
When the generating set works normally, respectively by the second bearing shell analogue ground one by one；
Record the simulation shaft current waveform of each second bearing shell.
3. the method according to claim 1, wherein described based on the abnormal shaft current waveform and the simulation
Shaft current waveform, to determine that the second bearing shell for breaking down includes:
Compare the wave character of the abnormal shaft current waveform and the simulation shaft current waveform；
If the simulation shaft current waveform of second bearing shell is consistent with the abnormal shaft current wave character, it is determined that second axis
Watt for the second bearing shell for breaking down.
4. according to the method described in claim 3, it is characterized in that, the wave character include waveform frequency and alternating current-direct current at
At least one divided.
5. the method according to claim 1, wherein including by temporarily connecing by the second bearing shell analogue ground
At least one ground tool analogue ground and declined by adjustable resistor analog insulation.
6. a kind of detection device of pressurized-water reactor nuclear power plant generating set bearing shell, which is characterized in that the generating set includes one
First bearing shell and at least two second bearing shells, first bearing shell are ground connection bearing shell, and described device includes:
Exception record module, the abnormal shaft current waveform of generator when for recording bearing shell failure；
Analog record module, for by the second bearing shell analogue ground, and recording phase when the generating set works normally
The simulation shaft current waveform answered；
Waveform comparison module, is used for based on the abnormal shaft current waveform and the simulation shaft current waveform, and event occurs to determine
Second bearing shell of barrier.
7. device according to claim 6, which is characterized in that the analog record module includes:
Ground unit one by one is used for when the generating set works normally, respectively by the second bearing shell analogue ground one by one；
Waveform recording unit, for recording the simulation shaft current waveform of each second bearing shell.
8. device according to claim 6, which is characterized in that the waveform comparison module includes:
Characteristics comparing unit, the wave character for the abnormal shaft current waveform and the simulation shaft current waveform；
Failure determination unit, if simulation shaft current waveform and the abnormal shaft current wave character one for second bearing shell
It causes, it is determined that second bearing shell is the second bearing shell to break down.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes side described in any one of Claims 1-4 when executing described program
The step of method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step of any one of Claims 1-4 the method is realized when execution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574290.9A CN108957317B (en) | 2018-06-06 | 2018-06-06 | Method and device for detecting bearing bush of generator set of pressurized water reactor nuclear power station, computer and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574290.9A CN108957317B (en) | 2018-06-06 | 2018-06-06 | Method and device for detecting bearing bush of generator set of pressurized water reactor nuclear power station, computer and storage medium |
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| CN108957317A true CN108957317A (en) | 2018-12-07 |
| CN108957317B CN108957317B (en) | 2021-01-26 |
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| CN110954753A (en) * | 2019-11-26 | 2020-04-03 | 中广核核电运营有限公司 | Device and method for measuring insulation to ground of excitation end sealing tile of generator |
| CN110988481A (en) * | 2019-11-26 | 2020-04-10 | 中广核核电运营有限公司 | Device and method for measuring insulation to ground of excitation end sealing tile of generator |
| CN111007317A (en) * | 2019-11-26 | 2020-04-14 | 中广核核电运营有限公司 | Device and method for measuring insulation to ground of excitation end sealing tile of generator |
| CN111983324A (en) * | 2020-07-03 | 2020-11-24 | 中广核核电运营有限公司 | Method and device for measuring resistance value of generator sealing tile by equipotential method |
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| CN111983324A (en) * | 2020-07-03 | 2020-11-24 | 中广核核电运营有限公司 | Method and device for measuring resistance value of generator sealing tile by equipotential method |
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| CN114325386B (en) * | 2021-12-31 | 2023-09-19 | 杭州电子科技大学 | Method for detecting service performance of industrial servo motor under synchronous belt transmission load |
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