CN107633661B - Pump-storage generator runout alarm method and device - Google Patents
Pump-storage generator runout alarm method and device Download PDFInfo
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Abstract
The invention discloses a kind of pump-storage generator runout alarm method and devices, and wherein method includes: and counts pump-storage generator load adjustment to finish to runout peak-to-peak value the runout peak-to-peak value data for stablizing each measuring point in the period；According to statistical result, obtains pump-storage generator load adjustment and finish to runout peak-to-peak value the runout peak-to-peak value trend data for stablizing each measuring point in the period；According to the runout peak-to-peak value trend data, inverse time lag alarming value and inverse time lag chaser value are determined；According to total bearing clearance of pump-storage generator, inverse time lag alarming value and inverse time lag chaser value are adjusted；According to inverse time lag alarming value adjusted, pump-storage generator runout alert process is carried out；According to inverse time lag chaser value adjusted, the processing of pump-storage generator runout chaser is carried out.Alarm threshold value can be rationally arranged in the present invention, avoid false alarm.
Description
Technical field
The present invention relates to technical field of electric power more particularly to pump-storage generator runout alarm methods and device.
Background technique
With the deep development of energy internet, Construction of Pumped Storage Power Station enters the great-leap-forward development stage, while right
More stringent requirements are proposed for the operation and maintenance of pump-storage generator.Currently, Condition-Based Maintenance Technology, which has entered, gos deep into developing stage, take out
The stateful monitoring system of water accumulation of energy unit common configuration in relation to unit operation stability runout parameter (including vibration, throw,
Pressure fluctuation etc.) real-time monitoring is carried out, by comparing the relationship of feature monitor value and alarm threshold value to judge whether unit occurs
It is abnormal, avoid unit " in spite of illness " from running to take timely measure.However in pump-storage generator actual motion, although realizing
Different alarm threshold values is set for different operating conditions, but is constrained to the complexity of operating condition, alarm threshold value is usually set
It is set to single magnitude, such as: above leading throw in the level-one alarm threshold value of pump operating condition is steady state value, the level-one alarm of upper spider vibration
Threshold value is steady state value.The mode of this set alarm threshold value fails the stable state for sufficiently reflecting pump-storage generator, leads
Cause is less than normal in stable conditions initial stage alarm threshold value, and runout protects systems stay alarm, makes to the operation and maintenance of pump-storage generator
At very big hidden danger.
Summary of the invention
The embodiment of the present invention provides a kind of pump-storage generator runout alarm method and keeps away alarm threshold value is rationally arranged
Exempt from false alarm, this method comprises:
Statistics pump-storage generator load adjustment finishes to runout peak-to-peak value the runout peak peak for stablizing each measuring point in the period
Value Data；
According to statistical result, acquisition pump-storage generator load adjustment, which finishes to runout peak-to-peak value to stablize in the period, respectively to be surveyed
The runout peak-to-peak value trend data of point；
According to the runout peak-to-peak value trend data, inverse time lag alarming value and inverse time lag chaser value are determined；
According to total bearing clearance of pump-storage generator, inverse time lag alarming value and inverse time lag chaser value are adjusted；
According to inverse time lag alarming value adjusted, pump-storage generator runout alert process is carried out；
According to inverse time lag chaser value adjusted, the processing of pump-storage generator runout chaser is carried out.
The embodiment of the present invention also provides a kind of pump-storage generator runout warning device, alarm threshold value is rationally arranged,
False alarm is avoided, which includes:
Data statistics module is stablized in the period for counting pump-storage generator load adjustment and finishing to runout peak-to-peak value
The runout peak-to-peak value data of each measuring point；
Trend obtains module, for obtaining pump-storage generator load adjustment and finishing to runout peak peak according to statistical result
It is worth the runout peak-to-peak value trend data for stablizing each measuring point in the period；
Threshold determination module, for determining inverse time lag alarming value and inverse time lag according to the runout peak-to-peak value trend data
Chaser value；
Threshold adjustment module adjusts inverse time lag alarming value and inverse time for total bearing clearance according to pump-storage generator
Limit chaser value；
Alert process module, for carrying out at the alarm of pump-storage generator runout according to inverse time lag alarming value adjusted
Reason；
Chaser processing module, for carrying out at pump-storage generator runout chaser according to inverse time lag chaser value adjusted
Reason.
The embodiment of the present invention also provides a kind of computer equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize above-mentioned water-storage machine when executing the computer program
Group runout alarm method.
The embodiment of the present invention also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has
Execute the computer program of above-mentioned pump-storage generator runout alarm method.
In the embodiment of the present invention, statistics pump-storage generator load adjustment, which is finished to runout peak-to-peak value, to be stablized in the period respectively
The runout peak-to-peak value data of measuring point obtain pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize according to statistical result
The runout peak-to-peak value trend data of each measuring point in period, determines inverse time lag alarming value according to the runout peak-to-peak value trend data
With inverse time lag chaser value, inverse time lag alarming value and inverse time lag chaser value are adjusted according to total bearing clearance of pump-storage generator, from
And after fully taking into account pump-storage generator load adjustment, runout peak-to-peak value needs certain objective law for stablizing the time,
By counting and being arranged corresponding inverse time lag relationship, it is reasonably provided with alarm threshold value, solves the problems, such as false alarm；Also,
Pump-storage generator runout alert process is carried out according to inverse time lag alarming value adjusted, according to inverse time lag chaser value adjusted
The processing of pump-storage generator runout chaser is carried out, runout protection system can be made to realize the pump-storage generator after steady load
Effective protection.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.In the accompanying drawings:
Fig. 1 is the exemplary diagram of inverse-time curve in the embodiment of the present invention；
Fig. 2 is the schematic diagram of pump-storage generator runout alarm method in the embodiment of the present invention；
Fig. 3 be the embodiment of the present invention in certain unit load adjustment finish to runout peak-to-peak value stablize the period in large-diameter to
Vibrate the curve graph of peak-to-peak value trend data；
Fig. 4 is finished to runout peak-to-peak value to stablize in the period and be led on big axis for certain unit load adjustment in the embodiment of the present invention
Curve graph of the X to throw peak-to-peak value trend data；
Fig. 5 is the curve exemplary diagram of inverse time lag alarming value and inverse time lag chaser value in the embodiment of the present invention；
Fig. 6 is the specific example figure of pump-storage generator runout alarm method in the embodiment of the present invention；
Fig. 7 is the schematic diagram of pump-storage generator runout warning device in the embodiment of the present invention.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the accompanying drawing to this hair
Bright embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
More percent high threshold value alarm technique is in standing state monitoring system using at most and comparatively more effective
Mode.Usually, for pump-storage generator stability, higher runout peak-to-peak value indicates the operation of pump-storage generator
State more deteriorates, therefore to not in ISO7919.5 and ISO10816.5, GB/T6075.5 and GB/T11348.5
The runout peak-to-peak value upper limit for operating in stable operation area range with pump-storage generator under revolving speed has carried out subregion setting.When some
Measuring point occur runout peak-to-peak value it is exceeded when, condition monitoring system will will call the police.Pump-storage generator is realized according to difference at present
The different higher limit alarm threshold values of steady working condition setting.These steady working condition include: stable pumping operation mode, stable electric generation operating condition, surely
Surely generate electricity direction working conditions of phrase modulation, stablizes the direction working conditions of phrase modulation that draws water.
Inventors noted that pump-storage generator operation has typical intermittent duty feature, according to operation of power networks feelings
Condition, dispatching the operation to pump-storage generator and controlling has apparent periodic feature.This feature is mainly manifested in: power grid is negative
Lotus peak period (morning, afternoon and evening) generates electricity, and the load valley phase (morning) draws water.Runing time of drawing water usually exists
6~8 hours, and the time to generate electricity every time is in 2~3 hours.Therefore characteristic of the pump-storage generator with frequent start-stop, and
After opening machine to load adjustment each time, the runout peak-to-peak value for being typically passed through half an hour a to hour stablizes the time.With
For stable electric generation operating condition, steady working condition is defined as pump-storage generator load adjustment stabilization, the substantially invariable state of leaf aperture.
Steady working condition is primarily referred to as steady load, the characterizations such as Wa Wen, oil temperature, wind-warm syndrome, water temperature at this time lubrication, the ginseng of cooling system state
Number is not necessarily stable.As pump-storage generator is run for a long time, it is however generally that after more than one hour, temperature parameter energy
Enough reach and stablizes (difference variation is less than 2K within one hour).After temperature parameter is stablized, runout characteristic value also reaches stable state.Invention
People's discovery, runout peak-to-peak value and time is at inverse time lag relationship in the process, i.e., when load adjustment finishes, runout peak peak
Be worth it is larger, and when lubrication, coolant temperature it is constant after, runout peak-to-peak value is smaller, and tends towards stability.
Wherein, inverse time-lag protection refers to: when protected device failure, fault current is bigger, the delay of relay protection device
It is smaller.That is: action current is inversely proportional with actuation time.Fig. 1 gives the example of an inverse-time curve.By taking electric current as an example, Fig. 1
Middle IophAnd IoplRespectively indicate upper limit action current and lower limit starting current, tupAnd tsRespectively indicate upper limit action delay and lower limit
Action delay.
Inverse-time curve usually has following relationship:
Wherein, C indicates constant；I indicates protected object reason amount；ISIndicate the steady-state value of protected object reason amount；When t is indicated
Between.
Peak-to-peak value is the difference of maxima and minima in one group of statistical data, reflects the variation range of data.For
Statistical data xiFor, peak-to-peak value P2P calculation formula can be expressed as:
P2P=Max (x1,x2,...,xi,...,xN)-Min(x1,x2,...,xi,...,xNi)。
In the prior art, it is arranged in pump-storage generator runout threshold process and single threshold is often carried out according to load or revolving speed
Value setting, and do not consider that required lubrication after load adjustment, that cooling medium stablizes bring runout peak-to-peak value is unstable
The problem of, after pump-storage generator load adjustment, stable shape is not entered with lubricant medium since a watt temperature, oil temperature etc. are cooling
State causes throw and unit vibration at guide bearing bigger than normal compared with steady state condition, so that runout protection systems stay is caused frequently to alarm,
It causes to puzzle to operation maintenance personnel.Inventor based on above-mentioned analysis, for how alarm threshold value is rationally arranged, solves existing skill
In art because fixed alarm threshold value setting it is unreasonable caused by false alarm problem, propose a kind of water-storage in embodiments of the present invention
Unit runout alarm method.
Fig. 2 is the schematic diagram of pump-storage generator runout alarm method in the embodiment of the present invention, as shown in Fig. 2, this method
Include:
Step 201, statistics pump-storage generator load adjustment, which are finished to runout peak-to-peak value, stablizes each measuring point in the period
Runout peak-to-peak value data；
Step 202, according to statistical result, obtain pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize the time
The runout peak-to-peak value trend data of each measuring point in section；
Step 203, according to the runout peak-to-peak value trend data, determine inverse time lag alarming value and inverse time lag chaser value；
Step 204, total bearing clearance according to pump-storage generator adjust inverse time lag alarming value and inverse time lag chaser value；
Step 205, according to inverse time lag alarming value adjusted, carry out pump-storage generator runout alert process；
Step 206, according to inverse time lag chaser value adjusted, carry out the processing of pump-storage generator runout chaser.
Process is it is known that in embodiments of the present invention, fully taken into account pump-storage generator load tune as shown in Figure 2
After whole, runout peak-to-peak value needs certain objective law for stablizing the time, by counting and being arranged corresponding inverse time lag relationship,
Reasonably be provided with alarm threshold value, solve the problems, such as false alarm, so can make runout protection system to steady load after
Pump-storage generator realizes effective protection.
It is respectively surveyed when it is implemented, first counting pump-storage generator load adjustment and finishing to runout peak-to-peak value to stablize in the period
The runout peak-to-peak value data of point obtain pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize according to statistical result
The runout peak-to-peak value trend data of each measuring point in period.In embodiment, can pump-storage generator debug after the completion of or nothing
Under fault condition, collects load adjustment under every kind of operating condition and finish to runout peak-to-peak value the runout peak peak for stablizing each measuring point in the period
It is worth trend data.Pump-storage generator load adjustment can wherein be finished to runout peak-to-peak value and stablize each measuring point in the period
All previous runout peak-to-peak value data are counted.In embodiment, according to statistical result, pump-storage generator load adjustment can be obtained
It finishes to runout peak-to-peak value and stablizes the mean value trend data and steady-state value of the runout peak-to-peak value of each measuring point in the period.
In embodiment, runout peak-to-peak value may include that the runout parameter in relation to unit operation stability (including is vibrated, put
Degree, pressure fluctuation etc.) peak-to-peak value.For example, Fig. 3 is that the adjustment of certain unit load is finished to runout peak-to-peak value in the embodiment of the present invention
Stablizing large-diameter in the period, to the profile example of vibration peak-to-peak value trend data, Fig. 4 is certain unit in the embodiment of the present invention
Load adjustment, which finishes to runout peak-to-peak value to stablize, leads X to the curve of throw peak-to-peak value trend data diagram on big axis in the period
Example.
It finishes obtaining pump-storage generator load adjustment to the runout peak of each measuring point in the runout peak-to-peak value stable period
After peak value trend data, according to these runout peak-to-peak value trend datas, inverse time lag alarming value and inverse time lag chaser value are determined.Implement
Example in, can the mean value trend data as follows to runout peak-to-peak value carry out curve fitting, obtain C value:
Wherein, C indicates constant；The mean value trend data of I expression runout peak-to-peak value；ISIndicate the stable state of runout peak-to-peak value
Value；T indicates the time；
According to C value, inverse time lag alarming value and inverse time lag chaser value are determined.
In embodiment, it is contemplated that C value has certain distribution, and C value can take the average value of preceding 15 minute data.
In embodiment, according to C value, inverse time lag alarming value and inverse time lag chaser value are determined, may include: with 1.5 times of C value
Inverse time lag alarming value and inverse time lag chaser value are determined respectively with 2.25 times.
Inverse time lag alarming value
Inverse time lag chaser value
Certainly, it is only for example for above-mentioned 1.5 times and 2.25 times, this example may be implemented accurately to alarm and chaser is protected
Shield.Other multiple values can be set according to actual needs when specific implementation, and the present invention is not listed, these change case should all be fallen
Enter protection scope of the present invention.
After determining inverse time lag alarming value and inverse time lag chaser value, according to total bearing clearance of pump-storage generator, adjustment
Inverse time lag alarming value and inverse time lag chaser value.In embodiment, such as can be between inverse time lag alarming value is more than 0.75 times of total bearing
When gap, reported using the average value of the corresponding data in 0.75 times of total bearing clearance and runout peak-to-peak value trend data as the inverse time lag
Alert value；When inverse time lag chaser value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance as inverse time lag chaser
Value.The above X that leads shows the curve example of inverse time lag alarming value and inverse time lag chaser value to for throw in Fig. 5.Such as Fig. 5 institute
Show, allowed in this example, large-diameter is not to be exceeded between total bearing to for vibration, shutting down line (inverse time lag chaser value curve)
0.75 times of gap during actual setting, can exceed that line shaft in incipient stability stage alarming line (inverse time lag alarming value curve)
0.75 times for holding gap, at this time using 0.75 times of total bearing clearance with the average value of Trendline as alarming line.
Fig. 6 gives the specific example of pump-storage generator runout alarm method in the embodiment of the present invention, as shown in fig. 6,
Pump-storage generator runout alarm method includes: in this example
Step 601, statistics pump-storage generator load adjustment, which are finished to runout peak-to-peak value, stablizes each measuring point in the period
Runout peak-to-peak value data；
Step 602, according to statistical result, obtain pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize the time
The mean value trend data and steady-state value of the runout peak-to-peak value of each measuring point in section；
Step 603 carries out curve fitting to the mean value trend data of runout peak-to-peak value, obtains C value；
Step 604 determines inverse time lag alarming value and inverse time lag chaser value with 1.5 times of C value and 2.25 times respectively, holds respectively
Row step 605 and step 608；
Step 605, judge inverse time lag alarming value whether more than 0.75 times total bearing clearance, it is no if so then execute step 606
Then follow the steps 607；
Step 606, using the average value of the corresponding data in 0.75 times of total bearing clearance and runout peak-to-peak value trend data
As inverse time lag alarming value；Execute step 607；
Step 607, according to inverse time lag alarming value, carry out pump-storage generator runout alert process；
Step 608, judge inverse time lag chaser value whether more than 0.75 times total bearing clearance, it is no if so then execute step 609
Then follow the steps 610；
Step 609, using 0.75 times of total bearing clearance as inverse time lag chaser value；Execute step 610；
Step 610, according to inverse time lag chaser value, carry out the processing of pump-storage generator runout chaser.
Based on the same inventive concept, a kind of pump-storage generator runout warning device is additionally provided in the embodiment of the present invention,
As described in the following examples.Since the principle that the device solves the problems, such as is similar to pump-storage generator runout alarm method, because
The implementation of this device may refer to the implementation of pump-storage generator runout alarm method, and overlaps will not be repeated.
Fig. 7 is the schematic diagram of pump-storage generator runout warning device in the embodiment of the present invention, as shown in fig. 7, the device
May include:
Data statistics module 701 stablizes the time for counting pump-storage generator load adjustment and finishing to runout peak-to-peak value
The runout peak-to-peak value data of each measuring point in section；
Trend obtains module 702, for obtaining pump-storage generator load adjustment and finishing to runout peak according to statistical result
The runout peak-to-peak value trend data of each measuring point in the peak steady period；
Threshold determination module 703, for determining inverse time lag alarming value and inverse time according to the runout peak-to-peak value trend data
Limit chaser value；
Threshold adjustment module 704 adjusts inverse time lag alarming value and anti-for total bearing clearance according to pump-storage generator
Time limit chaser value；
Alert process module 705, for carrying out the alarm of pump-storage generator runout according to inverse time lag alarming value adjusted
Processing；
Chaser processing module 706, for carrying out pump-storage generator runout chaser according to inverse time lag chaser value adjusted
Processing.
In one embodiment, the trend, which obtains module 702, to be further used for:
According to statistical result, acquisition pump-storage generator load adjustment, which finishes to runout peak-to-peak value to stablize in the period, respectively to be surveyed
The mean value trend data and steady-state value of the runout peak-to-peak value of point.
In one embodiment, the threshold determination module 703 can be further used for:
It carries out curve fitting as follows to the mean value trend data of the runout peak-to-peak value, obtains C value:
Wherein, C indicates constant；I indicates the mean value trend data of the runout peak-to-peak value；ISIndicate the runout peak-to-peak value
Steady-state value；T indicates the time；
According to C value, inverse time lag alarming value and inverse time lag chaser value are determined.
In one embodiment, the threshold determination module 703 can be further used for:
Inverse time lag alarming value and inverse time lag chaser value are determined respectively with 1.5 times of C value and 2.25 times.
In one embodiment, the threshold adjustment module 704 can be further used for:
When inverse time lag alarming value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance and runout peak-to-peak value
The average value of corresponding data in trend data is as inverse time lag alarming value；
When inverse time lag chaser value is more than 0.75 times of total bearing clearance, jumped using 0.75 times of total bearing clearance as the inverse time lag
Machine value.
The embodiment of the present invention also provides a kind of computer equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize above-mentioned water-storage machine when executing the computer program
Group runout alarm method.
The embodiment of the present invention also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has
Execute the computer program of above-mentioned pump-storage generator runout alarm method.
In conclusion statistics pump-storage generator load adjustment, which is finished to runout peak-to-peak value, to be stablized in the embodiment of the present invention
The runout peak-to-peak value data of each measuring point in period obtain pump-storage generator load adjustment according to statistical result and finish to runout
Peak-to-peak value stablizes the runout peak-to-peak value trend data of each measuring point in the period, is determined according to the runout peak-to-peak value trend data anti-
Time-alarm value and inverse time lag chaser value adjust inverse time lag alarming value and inverse time lag according to total bearing clearance of pump-storage generator
Chaser value, so that runout peak-to-peak value needs certain stable time after fully taking into account pump-storage generator load adjustment
Objective law is reasonably provided with alarm threshold value, solves asking for false alarm by counting and being arranged corresponding inverse time lag relationship
Topic；Also, pump-storage generator runout alert process is carried out according to inverse time lag alarming value adjusted, according to inverse time adjusted
It limits chaser value and carries out the processing of pump-storage generator runout chaser, runout protection system can be made to the water-storage after steady load
Unit realizes effective protection.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (12)
1. a kind of pump-storage generator runout alarm method characterized by comprising
Statistics pump-storage generator load adjustment finishes to runout peak-to-peak value the runout peak-to-peak value number for stablizing each measuring point in the period
According to；
According to statistical result, obtains pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize each measuring point in the period
Runout peak-to-peak value trend data；
According to the runout peak-to-peak value trend data, inverse time lag alarming value and inverse time lag chaser value are determined；
According to total bearing clearance of pump-storage generator, inverse time lag alarming value and inverse time lag chaser value are adjusted；
According to inverse time lag alarming value adjusted, pump-storage generator runout alert process is carried out；
According to inverse time lag chaser value adjusted, the processing of pump-storage generator runout chaser is carried out.
2. the method as described in claim 1, which is characterized in that according to statistical result, obtain pump-storage generator load adjustment
It finishes to runout peak-to-peak value and stablizes the runout peak-to-peak value trend data of each measuring point in the period, comprising:
According to statistical result, obtains pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize each measuring point in the period
The mean value trend data and steady-state value of runout peak-to-peak value.
3. method according to claim 2, which is characterized in that according to the runout peak-to-peak value trend data, determine the inverse time lag
Alarming value and inverse time lag chaser value, comprising:
It carries out curve fitting as follows to the mean value trend data of the runout peak-to-peak value, obtains C value:
Wherein, C indicates constant；I indicates the mean value trend data of the runout peak-to-peak value；ISIndicate the steady of the runout peak-to-peak value
State value；T indicates the time；
According to C value, inverse time lag alarming value and inverse time lag chaser value are determined.
4. method as claimed in claim 3, which is characterized in that according to C value, determine inverse time lag alarming value and inverse time lag chaser
Value, comprising:
Inverse time lag alarming value and inverse time lag chaser value are determined respectively with 1.5 times of C value and 2.25 times.
5. such as the described in any item methods of Claims 1-4, which is characterized in that according to total bearing clearance of pump-storage generator,
Adjust inverse time lag alarming value and inverse time lag chaser value, comprising:
When inverse time lag alarming value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance and runout peak-to-peak value trend
The average value of corresponding data in data is as inverse time lag alarming value；
When inverse time lag chaser value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance as inverse time lag chaser
Value.
6. a kind of pump-storage generator runout warning device characterized by comprising
Data statistics module, for count pump-storage generator load adjustment finish to runout peak-to-peak value stablize the period in respectively survey
The runout peak-to-peak value data of point；
Trend obtains module, for according to statistical result, acquisition pump-storage generator load adjustment to finish steady to runout peak-to-peak value
The runout peak-to-peak value trend data of each measuring point in section of fixing time；
Threshold determination module, for determining inverse time lag alarming value and inverse time lag chaser according to the runout peak-to-peak value trend data
Value；
Threshold adjustment module adjusts inverse time lag alarming value and the inverse time lag jumps for total bearing clearance according to pump-storage generator
Machine value；
Alert process module, for carrying out pump-storage generator runout alert process according to inverse time lag alarming value adjusted；
Chaser processing module, for carrying out the processing of pump-storage generator runout chaser according to inverse time lag chaser value adjusted.
7. device as claimed in claim 6, which is characterized in that the trend obtains module and is further used for:
According to statistical result, obtains pump-storage generator load adjustment and finish to runout peak-to-peak value and stablize each measuring point in the period
The mean value trend data and steady-state value of runout peak-to-peak value.
8. device as claimed in claim 7, which is characterized in that the threshold determination module is further used for:
It carries out curve fitting as follows to the mean value trend data of the runout peak-to-peak value, obtains C value:
Wherein, C indicates constant；I indicates the mean value trend data of the runout peak-to-peak value；ISIndicate the steady of the runout peak-to-peak value
State value；T indicates the time；
According to C value, inverse time lag alarming value and inverse time lag chaser value are determined.
9. device as claimed in claim 8, which is characterized in that the threshold determination module is further used for:
Inverse time lag alarming value and inverse time lag chaser value are determined respectively with 1.5 times of C value and 2.25 times.
10. such as the described in any item devices of claim 6 to 9, which is characterized in that the threshold adjustment module is further used for:
When inverse time lag alarming value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance and runout peak-to-peak value trend
The average value of corresponding data in data is as inverse time lag alarming value；
When inverse time lag chaser value is more than 0.75 times of total bearing clearance, using 0.75 times of total bearing clearance as inverse time lag chaser
Value.
11. 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 any side of claim 1 to 5 when executing the computer program
Method.
12. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has perform claim
It is required that the computer program of 1 to 5 any the method.
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| CN110850288A (en) * | 2019-11-12 | 2020-02-28 | 河南国网宝泉抽水蓄能有限公司 | Fault recording fixed value setting method for pumped storage unit |
| CN111075637A (en) * | 2019-11-27 | 2020-04-28 | 国网新源控股有限公司回龙分公司 | Method for monitoring vibration of pumped storage unit |
| CN111259538B (en) * | 2020-01-14 | 2023-08-01 | 河北振创电子科技有限公司 | Vibration alarm method, storage medium and electronic equipment |
| CN111425337B (en) * | 2020-02-14 | 2021-08-03 | 国家电网有限公司 | Inverse time limit protection method for vibration of hydroelectric generating set |
| CN111932843A (en) * | 2020-07-01 | 2020-11-13 | 中国人民解放军海军工程大学 | Method for monitoring and alarming on-line of mobile equipment to limit repeated crossing |
| CN113159106B (en) * | 2021-02-26 | 2024-02-02 | 国网甘肃省电力公司 | Load curve clustering method, medium and equipment based on morphological trend characteristics |
| CN113295412B (en) * | 2021-05-26 | 2022-10-11 | 华能澜沧江水电股份有限公司 | Method for detecting cause of unbalanced stress of guide bearing of vertical water turbine generator set |
| CN113268835B (en) * | 2021-06-21 | 2024-08-02 | 河南工业大学 | Pumped storage hydroelectric generating set health assessment method and device based on extended isolation forest and cloud model |
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| CN105549503B (en) * | 2015-12-09 | 2018-08-03 | 国家电网公司 | Pump-storage generator runout is protected and monitoring system |
| CN105628421B (en) * | 2015-12-25 | 2018-06-08 | 南京南瑞集团公司 | A kind of out-of-limit monitoring and pre-alarming method of Hydropower Unit divided working status runout |
| CN106092190B (en) * | 2016-06-02 | 2019-03-29 | 国家电网公司 | Pump-storage generator operation stability state deteriorates method for early warning and system |
| CN107064796A (en) * | 2017-04-20 | 2017-08-18 | 哈尔滨理工大学 | Intelligent electric machine vibration online monitoring and early warning system |
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