CN107588906B - Liquid leakage method for early warning and device for liquid-cooling circulating system - Google Patents
Liquid leakage method for early warning and device for liquid-cooling circulating system Download PDFInfo
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- CN107588906B CN107588906B CN201710813782.4A CN201710813782A CN107588906B CN 107588906 B CN107588906 B CN 107588906B CN 201710813782 A CN201710813782 A CN 201710813782A CN 107588906 B CN107588906 B CN 107588906B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A kind of liquid leakage method for early warning and device for liquid-cooling circulating system is provided.The described method includes: (A) obtains the outlet hydraulic value of the liquid-cooling circulating system in the acquisition of multiple time points for liquid leakage analyzing；(B) the outlet hydraulic value that will acquire is arranged as time series according to the sequence of acquisition time；(C) timing smoothing processing is carried out to the value in the time series, with the time series that obtains that treated；(D) determine whether the value in treated time series with the decline trend of timing is in default decline trend；(E) when determining in default decline trend, determining liquid-cooling circulating system, there are liquid leakage situations.According to the method and device, can the liquid leakage situation to liquid-cooling circulating system carry out early warning.
Description
Technical field
All things considered of the present invention is related to liquid-cooling circulating system technical field, more particularly, is related to one kind and follows for liquid cooling
The liquid leakage method for early warning and device of loop system.
Background technique
Currently, the heat dissipation technology as a kind of maturation, liquid-cooling heat radiation mode are all widely used in industrial way all the time
Diameter.A set of typical liquid-cooling circulating system must have with lower component: liquid cooling block, circulation fluid, water pump, pipeline and water tank or heat exchange
Device.Due to the liquid-cooling circulating system complexity of technology arrangement and the conventional service wear of system itself at the scene, leakage is liquid cooling
Circulatory system one of the most common type problem.
Leakage alert applications in existing industry, which mainly pass through, installs hardware detection device additional, is based on liquid-cooling circulating system pressure
Power is not enough to maintain to continue coolant liquid cycle operation and trigger fault alarm.This mode needs to install additional and improve matched leakage
The corollary apparatus of sensing device and test loop and software alarm system, higher cost；The side detected simultaneously based on pressure
What method was mainly directed towards is the high or low failure of hydraulic high or low failure, liquid temperature, but in normal operation for liquid-cooling circulating system
Whether there is small evaporating, emitting, dripping or leaking of liquid or gas situation then cannot timely find.
Summary of the invention
Exemplary embodiment of the present invention be to provide a kind of liquid leakage method for early warning for liquid-cooling circulating system and
Device, can liquid leakage situation to liquid-cooling circulating system carry out early warning.
An exemplary embodiment of the present invention provides a kind of liquid leakage method for early warning for liquid-cooling circulating system,
It is characterised by comprising: (A) obtains the outlet of the liquid-cooling circulating system in the acquisition of multiple time points for liquid leakage analyzing
Hydraulic pressure value；(B) the outlet hydraulic value that will acquire is arranged as time series according to the sequence of acquisition time；(C) to described
Value in time series carries out timing smoothing processing, with the time series that obtains that treated；(D) treated time series is determined
In value with the decline trend of timing whether be in default decline trend；(E) when determining in default decline trend, determine that liquid cooling is followed
There are liquid leakage situations for loop system.
Optionally, step (A) includes: the outlet hydraulic that (a1) obtains the liquid-cooling circulating system acquired within a predetermined period of time
Value；(a2) it is chosen at liquid-cooling circulating system from the outlet hydraulic value of acquisition and is in outlet hydraulic value collected when preset state
As the outlet hydraulic value for liquid leakage analyzing.
Optionally, the preset state is recurrent state and is in full circulation operation mode.
Optionally, it is to go out the mild import of oral fluid according to liquid-cooling circulating system that whether liquid-cooling circulating system, which is in preset state,
What liquid temperature determined；Alternatively, it is to go out oral fluid temperature, import according to liquid-cooling circulating system that whether liquid-cooling circulating system, which is in preset state,
What liquid temperature and the operating status of cooling object determined.
Optionally, cooling object is the current transformer of wind power generating set, wherein the operating status of cooling object is according to wind
The operating status of power generator group, the revolving speed of wind power generating set, wind power generating set net side active power among at least
One determining.
Optionally, in step (C), timing is based on to the value in the time series and carries out the smooth place of local weighted recurrence
Reason.
Optionally, in step (D), when the following conditions is met, determine the value in treated time series with timing
Decline trend be in default decline trend: the value in treated time series is carried out obtained by the linear regression about timing
Regression coefficient be not more than the first preset value, wherein the first preset value is less than 0；And/or in treated time series before
The difference of the average value of the value of the rear predetermined quantity in the average value of the value of predetermined quantity and treated time series is greater than
Second preset value, wherein the second preset value is greater than 0；And/or respectively for different issues in treated time series
Value carries out the statistical value of obtained difference value after Difference Calculation, successively decreases with being incremented by for issue.
Optionally, the statistical value of obtained difference value be the average value of obtained difference value, maximum value, minimum value it
One.
Optionally, the liquid leakage method for early warning further include: there are liquid leakage situations when determining liquid-cooling circulating system
When, based on the value in treated time series and respectively it is worth corresponding acquisition time to predict that it is pre- that outlet hydraulic value is reduced to third
If value and the time point for causing liquid-cooling circulating system to be unable to operate normally.
In accordance with an alternative illustrative embodiment of the present invention, a kind of liquid leakage early warning dress for liquid-cooling circulating system is provided
It sets characterized by comprising data capture unit obtains the liquid cooling in the acquisition of multiple time points for liquid leakage analyzing
The outlet hydraulic value of the circulatory system；Time series forms unit, and the outlet hydraulic value that data capture unit is obtained is according to acquisition
The sequencing of time is arranged as time series；It is smooth to carry out timing to the value in the time series for smoothing processing unit
Processing, with the time series that obtains that treated；Trend determination unit determines value the passing with timing in treated time series
Subtract whether trend is in default decline trend；Liquid leakage determination unit, when trend determination unit is determined in default decline trend,
Determining liquid-cooling circulating system, there are liquid leakage situations.
Optionally, data capture unit includes: acquiring unit, obtains the liquid-cooling circulating system acquired within a predetermined period of time
Outlet hydraulic value；Selection unit is chosen at liquid-cooling circulating system from the outlet hydraulic value that acquiring unit obtains and is in default
Outlet hydraulic value collected is as the outlet hydraulic value for being used for liquid leakage analyzing when state.
Optionally, the preset state is recurrent state and is in full circulation operation mode.
Optionally, it is to go out the mild import of oral fluid according to liquid-cooling circulating system that whether liquid-cooling circulating system, which is in preset state,
What liquid temperature determined；Alternatively, it is to go out oral fluid temperature, import according to liquid-cooling circulating system that whether liquid-cooling circulating system, which is in preset state,
What liquid temperature and the operating status of cooling object determined.
Optionally, cooling object is the current transformer of wind power generating set, wherein the operating status of cooling object is according to wind
The operating status of power generator group, the revolving speed of wind power generating set, wind power generating set net side active power among at least
One determining.
Optionally, smoothing processing unit is based on timing to the value in the time series and carries out the smooth place of local weighted recurrence
Reason.
Optionally, trend determination unit when the following conditions is met, determines the value in treated time series with timing
Decline trend be in default decline trend: the value in treated time series is carried out obtained by the linear regression about timing
Regression coefficient be not more than the first preset value, wherein the first preset value is less than 0；And/or in treated time series before
The difference of the average value of the value of the rear predetermined quantity in the average value of the value of predetermined quantity and treated time series is greater than
Second preset value, wherein the second preset value is greater than 0；And/or respectively for different issues in treated time series
Value carries out the statistical value of obtained difference value after Difference Calculation, successively decreases with being incremented by for issue.
Optionally, the statistical value of obtained difference value be the average value of obtained difference value, maximum value, minimum value it
One.
Optionally, the liquid leakage prior-warning device further include: predicting unit, when liquid leakage determination unit determines liquid cooling
The circulatory system based on the value in treated time series and is respectively worth corresponding acquisition time come pre- there are when liquid leakage situation
Survey the time point that outlet hydraulic value is reduced to third preset value and liquid-cooling circulating system is caused to be unable to operate normally.
In accordance with an alternative illustrative embodiment of the present invention, a kind of computer readable storage medium is provided, is stored with to work as and be located
The program that reason device executes processor as described above for the liquid leakage method for early warning of liquid-cooling circulating system when executing refers to
It enables.
In accordance with an alternative illustrative embodiment of the present invention, a kind of computing device is provided, comprising: processor；Memory is used for
Storage, which is worked as, to be executed by processor so that processor executes the liquid leakage method for early warning for being used for liquid-cooling circulating system as described above
Program instruction.
Liquid leakage method for early warning and device according to an exemplary embodiment of the present invention for liquid-cooling circulating system, can
In the case where additionally not installing any hardware device additional in liquid-cooling circulating system, realize that the race occurred to liquid-cooling circulating system emits
The early warning of water clock situation.Further, additionally it is possible to cause liquid-cooling circulating system to be unable to operate normally to due to liquid leakage
Time point is predicted, to be handled immediately before liquid-cooling circulating system is unable to operate normally.
Part in following description is illustrated into the other aspect and/or advantage of present general inventive concept, there are also one
Dividing will be apparent by description, or can learn by the implementation of present general inventive concept.
Detailed description of the invention
By below with reference to be exemplarily illustrated embodiment attached drawing carry out description, exemplary embodiment of the present it is upper
Stating will become apparent with other purposes and feature, in which:
Fig. 1 shows the stream of the liquid leakage method for early warning according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Cheng Tu；
Fig. 2 shows the schematic diagrames of liquid-cooling circulating system according to an exemplary embodiment of the present invention；
Fig. 3 shows the local weighted recurrence scatterplot exponential smoothing of use according to an exemplary embodiment of the present invention in time series
Value carry out timing smoothing processing after effect picture；
Fig. 4 shows the frame of the liquid leakage prior-warning device according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Figure.
Specific embodiment
It reference will now be made in detail the embodiment of the present invention, examples of the embodiments are shown in the accompanying drawings, wherein identical mark
Number identical component is referred to always.It will illustrate the embodiment, by referring to accompanying drawing below to explain the present invention.
Fig. 1 shows the stream of the liquid leakage method for early warning according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Cheng Tu.Here, as an example, the liquid-cooling circulating system can be the various types such as water-cooling circulating system, oil cooling cyclic system
Liquid-cooling circulating system.The working principle of the liquid-cooling circulating system can be regarded as: the liquid in circulation line flows through cooling pair
As passing through low temperature environment heat dissipation after heat absorption, the process of heat transfer is completed.The cooling object of the liquid-cooling circulating system
It can be the various equipment for needing cooling, as an example, cooling object can be the powerful device inside wind power generating set,
For example, transformer, current transformer, motor, gear-box etc..
Referring to Fig.1, in step S10, the liquid cooling cyclic system in the acquisition of multiple time points for liquid leakage analyzing is obtained
The outlet hydraulic value of system.
Fig. 2 shows the schematic diagrames of liquid-cooling circulating system according to an exemplary embodiment of the present invention.As shown in Fig. 2, outlet pressure
Power transmitter is used for acquiring outlet hydraulic value, inlet pressure transmitter for acquiring imported hydraulic value, outlet temperature transmitter
In acquisition Outlet Temperature value, inlet temperature transmitter is used for acquiring inlet temperature, pressure control device (for example, accumulator)
It is hydraulic in circulation line in adjusting.Liquid-cooling circulating system can be at full circulation operation mode, partial circulation operation mode and mixing
One of operational mode, wherein when being in full circulation operation mode, triple valve makes the liquid in circulation line all flow through heat dissipation
Device；When being in partial circulation operation mode, triple valve does not make the liquid in circulation line flow through radiator；When in mixed running
When mode, triple valve makes the liquid portion in circulation line flow through radiator, is partially not passed through radiator.It should be understood that Fig. 2 is only
Part of devices in liquid-cooling circulating system according to an exemplary embodiment of the present invention is shown, the liquid-cooling circulating system may also include
Realize other devices needed for its function.
In view of pressure control device adjust circulation line in it is hydraulic when, be affected to imported hydraulic, be easy
Lead to the fluctuation of imported hydraulic, also, imported hydraulic is also easy the interference by circular flow mode, for example, when liquid cooling recycles
When system is from partial circulation operation pattern switching to full circulation operation mode, imported hydraulic can have certain fluctuation.Therefore, this hair
It is bright that outlet hydraulic value is used for liquid leakage analyzing.
As an example, the quantity of the outlet hydraulic value for liquid leakage analyzing obtained can reach the first predetermined quantity,
To improve the accuracy of the early warning to small evaporating, emitting, dripping or leaking of liquid or gas situation.For example, the first predetermined quantity can be 5000.
As an example, the outlet hydraulic value of the liquid-cooling circulating system acquired within a predetermined period of time can be obtained first, then from
Outlet hydraulic value collected is chosen at when liquid-cooling circulating system is in preset state in the outlet hydraulic value of acquisition as being used for
The outlet hydraulic value of liquid leakage analyzing.
As an example, the predetermined amount of time can be configured according to the actual situation, for example, the predetermined amount of time can be set
It is set to nearest X days, wherein X is the integer greater than 0.
As preferable example, can be set the predetermined amount of time to according to the practical operation situation of liquid-cooling circulating system
The quantity of the selected outlet hydraulic value for liquid leakage analyzing is enabled to reach the period of the first predetermined quantity.
As an example, the outlet hydraulic value of the liquid-cooling circulating system periodically acquired within a predetermined period of time can be first obtained,
Then it is chosen at liquid-cooling circulating system from the outlet hydraulic value of acquisition and is in outlet hydraulic value work collected when preset state
For the outlet hydraulic value for liquid leakage analyzing.For example, can obtain within a predetermined period of time every the liquid of Y seconds/minute acquisition
The outlet hydraulic value of SAPMAC method system, wherein Y is the integer greater than 0.
Consider: on the one hand, temperature rising leads to outlet hydraulic after flowing through cooling object due to the liquid in circulation line
Increase, the reduction of outlet hydraulic caused by liquid leakage can be made to be supplemented, and if cooling recirculation system is in circulation shape
State, then can to temperature rise liquid be radiated and be effectively reduced it is hydraulic, reduce to outlet hydraulic caused by liquid leakage
Reduced supplement；On the other hand, if being constantly in partial circulation operation mode, it is only used for the circulation line of full circulation operation mode
The liquid leakage situation of appearance, then can not be detected, also, most of leak source is at the interface or valve of each pipeline, is only used
Liquid leakage situation is less prone in the circulation line of partial circulation operation mode.Therefore, as preferable example, the preset state
It can be recurrent state and in full circulation operation mode.
As an example, whether liquid-cooling circulating system, which is in preset state and can be, goes out oral fluid temperature according to liquid-cooling circulating system
It is determined with import liquid temperature.As an example, can according to the difference of oral fluid temperature value out and import liquid temperature value whether within a preset range come
It determines whether liquid-cooling circulating system is in recurrent state, determines that liquid cooling recycles according to whether oral fluid temperature value out is greater than preset threshold
Whether system is in full circulation operation mode.
As another example, whether liquid-cooling circulating system, which is in preset state, can be outlet according to liquid-cooling circulating system
What the operating status of liquid temperature, import liquid temperature and cooling object determined.As an example, whether can be in default according to cooling object
Operating status determines whether liquid-cooling circulating system is in recurrent state and/or full circulation operation mode.
As an example, the operating status of cooling object can be when cooling object is the current transformer of wind power generating set
According to the operating status of wind power generating set, the revolving speed of wind power generating set, wind power generating set net side active power among
At least one of determine.
For example, when cooling object is the current transformer of 1.5MW wind power generating set, when oral fluid temperature value and import liquid temperature value out
Difference to be between 0-3 DEG C, go out oral fluid temperature not less than 28 DEG C, the operating status of wind power generating set be standby mode and netted
One of state, generating state (for example, the value of the operating status marker of wind power generating set is between 3-5), wind-driven generator
When the tachometer value of group is not less than 9 rpms, it may be determined that liquid-cooling circulating system is in the preset state.
For example, when cooling object is the current transformer of 2MW wind power generating set, when oral fluid temperature value out and import liquid temperature value it
Difference is between 0-3 DEG C, when going out oral fluid temperature not less than 28 DEG C, it may be determined that liquid-cooling circulating system is in the preset state.
For example, when cooling object is the current transformer of 2.5MW wind power generating set, when oral fluid temperature value and import liquid temperature value out
Difference when being between 0-3 DEG C, going out oral fluid temperature and be greater than 0kw not less than 28 DEG C, the net side active power of wind power generating set, can be true
Determine liquid-cooling circulating system and is in the preset state.
In step S20, the outlet hydraulic value that will acquire is arranged as time series according to the sequence of acquisition time.
In step S30, timing smoothing processing is carried out to the value in the time series, with the time sequence that obtains that treated
Column.
The case where outlet hydraulic due to caused by the hydraulic stability maintenance working mechanism of liquid-cooling circulating system fluctuates, so that described
Time series and nonstationary time series, if directly carrying out subsequent calculating using the value in the time series, it will cause
The case where sensibility of early warning is excessively high, is easy to appear wrong report.It is smooth therefore, it is necessary to carry out timing to the value in the time series
Processing, then time series carries out subsequent analysis based on treated.
As an example, various suitable timing smoothing processing methods can be used to carry out timing to the value in the time series
Smoothing processing.As preferable example, when local weighted recurrence scatterplot exponential smoothing can be used to carry out the value in the time series
Sequence smoothing processing.
Local weighted recurrence scatterplot exponential smoothing (locally weighted scatterplot smoothing, LOWESS
Or LOESS) it is to look at a kind of powerful of relationship between two-dimentional variable, LOWESS main thought is to take a certain proportion of part
Data, polynomial fitting regression curve in subset, can observe data in the rule locally shown so in this section
Rule and trend, and common algorithm with regress analysis method is often according to all data modeling to describe overall trend, but is advised in reality
Rule not always (or being seldom) straight line.LOWESS successively promotes subrange from left to right, and final one continuous
Curve is just computed.Obviously, the smooth degree of curve is related with ratio data is chosen: ratio is smaller, and fitting is more not only
Sliding (because excessively valuing local property), on the contrary it is more smooth.There are two major parameters in LOWESS, and one is window width f, more
It is big more flat, the other is the number of iterations iter, bigger calculating are slower.As an example, an exemplary embodiment of the present invention,
It, can be by window width when carrying out timing smoothing processing to the value in the time series using local weighted recurrence scatterplot exponential smoothing
F is set as 2/3, can set 1 for the number of iterations iter.
LOWESS method is similar to rolling average technology, is within specified window, the numerical value of every bit all uses window
The data inside closed on are weighted what recurrence obtained, regression equation useable linear or secondary.If in specified window
Within width, it is then symmetrical LOWESS that the smooth data point that carries out for intending carrying out smooth data point two sides, which is equal, if
Two sides data point differs, then is asymmetric LOWESS.In general, LOWESS method can include following steps:
(1) initial weight of each data point in specified window, weighting function General Expression Euclidean between numerical value are calculated
The cubic function of distance ratio；
(2) regression estimates are carried out using initial weight, defines steady weight function using the residual error of estimator, calculates new
Weight；
(3) step (2) are repeated using new weight, ceaselessly numerical simulation, it can be according to multinomial and power after convergence
Restore the smooth value to arbitrary point.
Fig. 3 shows the local weighted recurrence scatterplot exponential smoothing of use according to an exemplary embodiment of the present invention in time series
Value carry out the effect picture after timing smoothing processing, wherein abscissa indicates serial number of the hydraulic pressure value in time series.
In step S40, whether value in the time series that determines that treated is in default to successively decrease with the decline trend of timing
Gesture.
Value in the time series that can determine that treated according to various suitable modes with timing decline trend whether
In default decline trend.As an example, the value in treated time series can be determined with timing when the following conditions is met
Decline trend is in default decline trend: being carried out to the value in treated time series obtained about the linear regression of timing
Regression coefficient is not more than the first preset value, wherein the first preset value is less than 0；And/or preceding in treated time series
The difference of the average value of the value of rear second predetermined quantity in the average value of the value of two predetermined quantities and treated time series is big
In the second preset value, wherein the second preset value is greater than 0；And/or respectively for different issues in treated time series
Value carry out Difference Calculation after obtained difference value statistical value, with issue be incremented by and successively decrease, in other words: issue is got over
Greatly, the statistical value for carrying out obtained difference value after Difference Calculation to the value in treated time series for the issue is got over
It is small.As an example, the first preset value, the second predetermined quantity, can be arranged according to the practical operation situation of liquid-cooling circulating system
Two preset values.
Particularly, when issue is N, after carrying out Difference Calculation to the value in treated time series for issue N
Obtained difference value are as follows: M1+N-M1、M2+N-M2、……、Mi+N-Mi、……、Mlast-Mlast-N, wherein MiTreated for instruction
I-th of value in time series, MlastIndicate the last one value in treated time series, wherein N is whole greater than 0
Number.
As an example, the different issues can be arranged according to the actual situation, for example, can set respectively the different issues
The multiple integers being set to the half of the quantity of the value in from 1 to treated time series.
As an example, the statistical value of obtained difference value can be the average value of obtained difference value, maximum value, most
One of small value.
For example, the first preset value can be -0.000002 when cooling object is the current transformer of wind power generating set；Second
Predetermined quantity can be able to be 0.3 for the 10, second preset value.
In step S50, when the value in the time series that determines that treated is in default decline trend with the decline trend of timing
When, determining liquid-cooling circulating system, there are liquid leakage situations.
As an example, when determine liquid-cooling circulating system there are when liquid leakage situation, exportable warning message, to prompt work
Make personnel to handle in time.
In addition, an exemplary embodiment of the present invention, the liquid leakage method for early warning for liquid-cooling circulating system may be used also
It include: when determining liquid-cooling circulating system there are when liquid leakage situation, based on the value and each value pair in treated time series
The acquisition time answered predicts that outlet hydraulic value is reduced to third preset value and liquid-cooling circulating system is caused to be unable to operate normally
Time point.Consequently facilitating carrying out time limit processing to liquid leakage situation before SAPMAC method system is unable to operate normally.
Fig. 4 shows the frame of the liquid leakage prior-warning device according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Figure.As shown in figure 4, the liquid leakage prior-warning device according to an exemplary embodiment of the present invention for liquid-cooling circulating system includes:
Data capture unit 10, time series form unit 20, smoothing processing unit 30, trend determination unit 40, liquid leakage and determine
Unit 50.
Particularly, data capture unit 10 is used to obtain the liquid in the acquisition of multiple time points for liquid leakage analyzing
The outlet hydraulic value of SAPMAC method system.
As an example, data capture unit 10 can include: acquiring unit (not shown) and selection unit (not shown).
Acquiring unit is used to obtain the outlet hydraulic value of the liquid-cooling circulating system acquired within a predetermined period of time.Selection unit
For being chosen at outlet collected when liquid-cooling circulating system is in preset state from the outlet hydraulic value that acquiring unit obtains
Hydraulic pressure value is as the outlet hydraulic value for being used for liquid leakage analyzing.
As an example, the preset state can be recurrent state and in full circulation operation mode.
As an example, whether liquid-cooling circulating system, which is in preset state and can be, goes out oral fluid temperature according to liquid-cooling circulating system
It is determined with import liquid temperature；Alternatively, whether liquid-cooling circulating system, which is in preset state, can be going out according to liquid-cooling circulating system
What the operating status of oral fluid temperature, import liquid temperature and cooling object determined.
As an example, cooling object can be the current transformer of wind power generating set, wherein the operating status of cooling object can
Be according to the operating status of wind power generating set, the revolving speed of wind power generating set, wind power generating set net side active power
Among at least one of determine.
Time series forms outlet hydraulic value of the unit 20 for obtaining data capture unit 10 according to acquisition time
Sequencing is arranged as time series.
Smoothing processing unit 30 is used to carry out timing smoothing processing to the value in the time series, and to obtain, treated
Time series.
As an example, smoothing processing unit 30, which can be based on timing to the value in the time series, carries out local weighted recurrence
Smoothing processing.
Whether trend determination unit 40 is in pre- for determining the value in treated time series with the decline trend of timing
If decline trend.
As an example, trend determination unit 40 can determine the value in treated time series when the following conditions is met
It is in default decline trend with the decline trend of timing: the linear regression about timing is carried out to the value in treated time series
Obtained regression coefficient is not more than the first preset value, wherein the first preset value is less than 0；And/or treated time series
In preceding predetermined quantity value average value and the value of the rear predetermined quantity in treated time series average value it
Difference is greater than the second preset value, wherein the second preset value is greater than 0；And/or respectively for different issues to treated time sequence
Value in column carries out the statistical value of obtained difference value after Difference Calculation, successively decreases with being incremented by for issue.
As an example, the statistical value of obtained difference value can be the average value of obtained difference value, maximum value, most
One of small value.
Liquid leakage determination unit 50 is used to determine value in treated time series at any time when trend determination unit 40
When the decline trend of sequence is in default decline trend, determining liquid-cooling circulating system, there are liquid leakage situations.
As an example, the liquid leakage prior-warning device according to an exemplary embodiment of the present invention for liquid-cooling circulating system is also
Can include: predicting unit (not shown).
Predicting unit is used to determine that liquid-cooling circulating system there are when liquid leakage situation, is based on when liquid leakage determination unit
Value in time series that treated and be respectively worth corresponding acquisition time be reduced to third preset value predicting outlet hydraulic value and
Cause the time point that liquid-cooling circulating system is unable to operate normally.
It should be understood that the liquid leakage prior-warning device according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Specific implementation may be incorporated by reference the related specific implementation of Fig. 1-Fig. 3 description to realize, details are not described herein.
Computer readable storage medium according to an exemplary embodiment of the present invention, is stored with and makes when being executed by a processor
The program that processor executes the liquid leakage method for early warning for liquid-cooling circulating system such as any of the above-described exemplary embodiments refers to
It enables.
Computing device according to an exemplary embodiment of the present invention can include: processor (not shown) and memory (do not show
Out), wherein memory is used to store to work as and be executed by processor so that processor executes the use such as any of the above-described exemplary embodiments
In the program instruction of the liquid leakage method for early warning of liquid-cooling circulating system.
Liquid leakage method for early warning and device according to an exemplary embodiment of the present invention for liquid-cooling circulating system, can
In the case where additionally not installing any hardware device additional in liquid-cooling circulating system, realize that the race occurred to liquid-cooling circulating system emits
The early warning of water clock situation.Further, additionally it is possible to cause liquid-cooling circulating system to be unable to operate normally to due to liquid leakage
Time point is predicted, to be handled immediately before liquid-cooling circulating system is unable to operate normally.
Moreover, it should be understood that the liquid leakage early warning according to an exemplary embodiment of the present invention for liquid-cooling circulating system
Each unit in device can be implemented hardware component and/or component software.Those skilled in the art are according to each list of restriction
Processing performed by member, can such as use site programmable gate array (FPGA) or specific integrated circuit (ASIC) it is each to realize
A unit.
In addition, the liquid leakage method for early warning according to an exemplary embodiment of the present invention for liquid-cooling circulating system can be by
The computer code being embodied as in computer readable recording medium.Those skilled in the art can be according to the description to the above method
To realize the computer code.The above method of the invention is realized when the computer code is performed in a computer.
Although having show and described some exemplary embodiments of the invention, it will be understood by those skilled in the art that
It, can be to these in the case where not departing from the principle and spirit of the invention defined by the claims and their equivalents
Embodiment is modified.
Claims (14)
1. a kind of liquid leakage method for early warning for liquid-cooling circulating system characterized by comprising
(A) the outlet hydraulic value of the liquid-cooling circulating system in the acquisition of multiple time points for liquid leakage analyzing is obtained；
(B) the outlet hydraulic value that will acquire is arranged as time series according to the sequence of acquisition time；
(C) timing smoothing processing is carried out to the value in the time series, with the time series that obtains that treated；
(D) determine whether the value in treated time series with the decline trend of timing is in default decline trend；
(E) when determining in default decline trend, determine liquid-cooling circulating system there are liquid leakage situation,
Wherein, in step (D), when the following conditions is met, value the successively decreasing with timing in treated time series is determined
Trend is in default decline trend:
Value in treated time series is carried out to be not more than first about the obtained regression coefficient of linear regression of timing
Preset value, wherein the first preset value is less than 0；And/or
The average value of the value of preceding predetermined quantity in time series that treated with it is rear described pre- in treated time series
The difference of the average value of the value of fixed number amount is greater than the second preset value, wherein the second preset value is greater than 0；And/or
Carry out the system of obtained difference value after Difference Calculation to the value in treated time series for different issues respectively
Evaluation successively decreases with being incremented by for issue.
2. liquid leakage method for early warning according to claim 1, which is characterized in that step (A) includes:
(a1) the outlet hydraulic value of the liquid-cooling circulating system acquired within a predetermined period of time is obtained；
(a2) it is chosen at liquid-cooling circulating system from the outlet hydraulic value of acquisition and is in outlet hydraulic collected when preset state
It is worth as the outlet hydraulic value for being used for liquid leakage analyzing.
3. liquid leakage method for early warning according to claim 2, which is characterized in that the preset state be recurrent state and
In full circulation operation mode.
4. liquid leakage method for early warning according to claim 3, which is characterized in that whether liquid-cooling circulating system is in default
State is determined according to the mild import liquid temperature of oral fluid that goes out of liquid-cooling circulating system；
Alternatively, liquid-cooling circulating system whether be in preset state be according to liquid-cooling circulating system go out oral fluid temperature, import liquid temperature with
And cool down the operating status determination of object.
5. liquid leakage method for early warning according to claim 4, which is characterized in that cooling object is wind power generating set
Current transformer,
Wherein, the operating status of cooling object is according to the operating status of wind power generating set, the revolving speed of wind power generating set, wind
Among the net side active power of power generator group at least one of determine.
6. liquid leakage method for early warning according to claim 1, which is characterized in that further include:
When determine liquid-cooling circulating system there are when liquid leakage situation, based in treated time series value and each value correspond to
Acquisition time come predict that outlet hydraulic value is reduced to third preset value and cause that liquid-cooling circulating system is unable to operate normally when
Between point.
7. a kind of liquid leakage prior-warning device for liquid-cooling circulating system characterized by comprising
Data capture unit, obtain the liquid-cooling circulating system in the acquisition of multiple time points for liquid leakage analyzing goes out oral fluid
Pressure value；
Time series forms unit, and the outlet hydraulic value that data capture unit obtains is arranged according to the sequence of acquisition time
As time series；
Smoothing processing unit carries out timing smoothing processing to the value in the time series, with the time series that obtains that treated；
Trend determination unit determines whether value in treated time series with the decline trend of timing is in default to successively decrease
Gesture；
Liquid leakage determination unit determines that liquid-cooling circulating system exists when trend determination unit is determined in default decline trend
Liquid leakage situation,
Wherein, trend determination unit when the following conditions is met, determines value the successively decreasing with timing in treated time series
Trend is in default decline trend:
Value in treated time series is carried out to be not more than first about the obtained regression coefficient of linear regression of timing
Preset value, wherein the first preset value is less than 0；And/or
The average value of the value of preceding predetermined quantity in time series that treated with it is rear described pre- in treated time series
The difference of the average value of the value of fixed number amount is greater than the second preset value, wherein the second preset value is greater than 0；And/or
Carry out the system of obtained difference value after Difference Calculation to the value in treated time series for different issues respectively
Evaluation successively decreases with being incremented by for issue.
8. liquid leakage prior-warning device according to claim 7, which is characterized in that data capture unit includes:
Acquiring unit obtains the outlet hydraulic value of the liquid-cooling circulating system acquired within a predetermined period of time；
Selection unit is chosen at when liquid-cooling circulating system is in preset state from the outlet hydraulic value that acquiring unit obtains and is adopted
The outlet hydraulic value of collection is as the outlet hydraulic value for being used for liquid leakage analyzing.
9. liquid leakage prior-warning device according to claim 8, which is characterized in that the preset state be recurrent state and
In full circulation operation mode.
10. liquid leakage prior-warning device according to claim 9, which is characterized in that whether liquid-cooling circulating system is in pre-
If state is determined according to the mild import liquid temperature of oral fluid that goes out of liquid-cooling circulating system；
Alternatively, liquid-cooling circulating system whether be in preset state be according to liquid-cooling circulating system go out oral fluid temperature, import liquid temperature with
And cool down the operating status determination of object.
11. liquid leakage prior-warning device according to claim 10, which is characterized in that cooling object is wind power generating set
Current transformer,
Wherein, the operating status of cooling object is according to the operating status of wind power generating set, the revolving speed of wind power generating set, wind
Among the net side active power of power generator group at least one of determine.
12. liquid leakage prior-warning device according to claim 7, which is characterized in that further include:
Predicting unit, when liquid leakage determination unit determines liquid-cooling circulating system, there are when liquid leakage situation, be based on after handling
Time series in value and be worth corresponding acquisition time respectively to predict that outlet hydraulic value is reduced to third preset value and causes liquid
The time point that SAPMAC method system is unable to operate normally.
13. a kind of computer readable storage medium, which is characterized in that be stored with and execute processor when being executed by a processor
The program instruction of the liquid leakage method for early warning for liquid-cooling circulating system as described in claim 1 to 6 is any.
14. a kind of computing device characterized by comprising
Processor；
Memory is executed by processor for storing to work as so that processor, which is executed, is used for liquid as described in claim 1 to 6 is any
The program instruction of the liquid leakage method for early warning of SAPMAC method system.
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| CN112448367A (en) * | 2019-09-02 | 2021-03-05 | 北京国电思达科技有限公司 | Detection control device and control method for converter |
| CN111459695A (en) * | 2020-03-12 | 2020-07-28 | 平安科技（深圳）有限公司 | Root cause positioning method and device, computer equipment and storage medium |
| CN113884239B (en) * | 2021-08-13 | 2023-12-22 | 中车南京浦镇车辆有限公司 | Train braking system pipeline leakage diagnosis method based on TCMS data |
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