CN108131281A - Water pump control method, device and electronic equipment - Google Patents
Water pump control method, device and electronic equipment Download PDFInfo
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- CN108131281A CN108131281A CN201711399691.7A CN201711399691A CN108131281A CN 108131281 A CN108131281 A CN 108131281A CN 201711399691 A CN201711399691 A CN 201711399691A CN 108131281 A CN108131281 A CN 108131281A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000001595 flow curve Methods 0.000 claims abstract description 58
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 230000015654 memory Effects 0.000 claims description 23
- 238000004590 computer program Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 description 31
- 230000000875 corresponding effect Effects 0.000 description 14
- 230000006870 function Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 101710200914 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1 Proteins 0.000 description 5
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
Abstract
The present embodiments relate to water pump control technology field, in particular to a kind of water pump control method, device and electronic equipment.This method includes：Obtain the test run data of each water pump in multiple water pumps to be controlled, and test run data are stored, for each water pump, judge default operation data whether in the test run data area of the water pump, calculate the quadratic power controlling curve of the water pump, for each quadratic power controlling curve, obtain the efficiency flow curve of the quadratic power controlling curve, multiple efficiency critical points are calculated according to the efficient flow curve of institute, and corresponding efficiency critical bandwidth is set according to each efficiency critical point, efficiency flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth are compared, obtain comparison result, the operating status of each water pump is controlled according to comparison result.Using this method, device and electronic equipment, efficiency when multiple water pumps are run simultaneously can be improved.
Description
Technical field
The present embodiments relate to water pump control technology field, in particular to a kind of water pump control method, device and
Electronic equipment.
Background technology
The existing method controlled water pump is controlled using control manually or according to sensor information mostly, to more
It is possible that the relatively low situation of whole efficiency when a water pump carries out operation control.
Invention content
In view of this, the present invention provides a kind of water pump control method, device and electronic equipment, to improve the prior art pair
Multiple water pumps carry out the problem of whole efficiency is relatively low during operation control.
To achieve the above object, an embodiment of the present invention provides a kind of water pump control method, the method includes：
The test run data of each water pump in multiple water pumps to be controlled are obtained, and the test run data are carried out
Storage；
For each water pump, default operation data is judged whether in the test run data area of the water pump, if
The default operation data calculates the quadratic power controlling curve of the water pump in the test run data area of the water pump；
For each quadratic power controlling curve, efficiency-flow curve of the quadratic power controlling curve is obtained；According to institute
Effective percentage-flow curve calculates multiple efficiency critical points, and sets the corresponding critical frequency of efficiency according to each efficiency critical point
It is wide；
Efficiency-flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth are compared,
Comparison result is obtained, the operating status of each water pump in all water pumps to be controlled is controlled according to the comparison result
System, to realize that the operational efficiency of all water pumps to be controlled maximizes.
Optionally, the step of multiple efficiency critical points being calculated according to institute's effective percentage-flow curve, including：
According to institute's effective percentage-flow curve, multiple efficiency critical points are calculated using dichotomy.
Optionally, the quantity of the multiple water pump to be controlled is n, and the quantity of the multiple efficiency critical point is m, m
Efficiency-flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth are compared, obtain by=n-1
Comparison result is obtained, the operating status of each water pump in all water pumps to be controlled is controlled according to the comparison result
The step of, including：
Judge whether efficiency-flow curve of i-th of water pump to be controlled is located at the efficiency corresponding to j-th of efficiency critical point
In critical bandwidth, if calculating flow-computational efficiency curve of i-th of water pump to be controlled is located at corresponding to j-th of efficiency critical point
Efficiency critical bandwidth in, open i+1 water pump to be controlled, and obtain i-th and during i+1 water pump operation to be controlled
System effectiveness-flow curve, wherein i ∈ [1, n-1], j ∈ [1, m], i=j.
Optionally, the method further includes：
When opening n water pumps to be controlled, system effectiveness-flow curve during n water pump operations to be controlled is obtained, it will
The efficiency critical bandwidth corresponding to system effectiveness-flow curve and m-th of efficiency critical point during n water pump operations to be controlled into
Row compares, if system effectiveness-flow curve during n water pump operations to be controlled is located at the effect corresponding to m-th of efficiency critical point
In rate critical bandwidth, n-th of water pump to be controlled is closed.
Optionally, according to institute's effective percentage-flow curve, the step of multiple efficiency critical points are calculated using dichotomy, including：
Obtain default maximum stream flow QmaxWith preset minimum flow Qmin；
For each efficiency critical point to be solved, Q is judgedmaxWith QminDifference whether be less than setting value, if the difference
Value is less than setting value, by QmaxOr QminAs the efficiency critical point.
Optionally, the setting value is 0.1m3/h；Judge QmaxWith QminDifference whether be less than setting value, if the difference
Value is less than setting value, by QmaxOr QminThe step of as the efficiency critical point, including：
According to QmaxAnd QminIt calculates and obtains average flow rate Q0；
For x-th of efficiency-flow curve, acquisition and Q0Adjacent flow Qx1And Qx2, for (x+1)th efficiency-flow
Curve, acquisition and Q0Adjacent flow Q(x+1)1And Q(x+1)2；
X-th of interpolation η is obtained according to linear interpolation formulax0With (x+1)th interpolation η(x+1)0, the linear interpolation formula is：
By x-th of interpolation ηi0With (x+1)th interpolation η(i+1)0It is compared, if ηx0>η(x+1)0, then Qmin=Q0If ηx0<
η(x+1)0, then Qmax=Q0；
Judge Qmax-QminWhether 0.1m is less than3/ h, if Qmax-Qmin<0.1m3/ h, by QmaxOr QminFace as x-th of efficiency
Boundary's point；
Wherein, x ∈ [1,3].
Optionally, the method further includes：
If the default operation data is recalculated default outside the test run data area of the water pump using dichotomy
Operation data.
The embodiment of the present invention additionally provides a kind of pump control unit, and the pump control unit includes：
Acquisition module, for the test run data that obtain each water pump in multiple water pumps to be controlled and by the survey
Test run data is stored；
Whether quadratic power controlling curve computing module for being directed to each water pump, judges default operation data at this
In the test run data area of water pump, if the default operation data in the test run data area of the water pump, calculates
The quadratic power controlling curve of the water pump；
For being directed to each quadratic power controlling curve, it is bent to obtain quadratic power control for efficiency critical point computing module
Efficiency-flow curve of line；Multiple efficiency critical points are calculated, and face according to each efficiency according to institute's effective percentage-flow curve
Boundary's point sets corresponding efficiency critical bandwidth；
Control module, for efficiency-flow curve corresponding to each water pump to be controlled and each efficiency is critical
Bandwidth is compared, and comparison result is obtained, according to the comparison result to each water pump in all water pumps to be controlled
Operating status is controlled, to realize that the operational efficiency of all water pumps to be controlled maximizes.
The embodiment of the present invention additionally provides a kind of electronic equipment, including memory, processor and storage on a memory
And the computer program that can be run on a processor, the processor realize above-mentioned water pump control when performing the computer program
Method processed.
The embodiment of the present invention additionally provides a kind of computer readable storage medium, and the readable storage medium storing program for executing includes computer
Program, electronic equipment performs above-mentioned water pump controlling party the computer program controls the readable storage medium storing program for executing when running where
Method.
Water pump control method provided in an embodiment of the present invention, device and electronic equipment, can use quadratic power controlling curve pair
Each water pump is controlled, and efficiency-flow curve of each water pump to be controlled and efficiency critical bandwidth are compared and obtain ratio
Compared with as a result, according to comparison result and quadratic power controlling curve, according to efficiency comes first Controlling principle to each water in all water pumps
The operating status of pump is controlled, and improves efficiency when multiple water pumps are run simultaneously.
Further, the accurate solution to multiple efficiency critical points can be realized using dichotomy principle.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
The block diagram of a kind of electronic equipment 10 that Fig. 1 is provided by the embodiment of the present invention.
The flow chart of a kind of water pump control method that Fig. 2 is provided by the embodiment of the present invention.
The lift of a kind of test run data-flow curve figure that Fig. 3 is provided by the embodiment of the present invention.
The power versus flow curve graph of a kind of test run data that Fig. 4 is provided by the embodiment of the present invention.
The efficiency of a kind of test run data-flow curve figure that Fig. 5 is provided by the embodiment of the present invention.
Fig. 6 is the schematic diagram of sub-step that step S23 shown in Fig. 2 includes in an embodiment.
A plurality of efficiency-flow curve figure that Fig. 7 is provided by the embodiment of the present invention.
A kind of system effectiveness-flow curve figure that Fig. 8 is provided by the embodiment of the present invention.
The module frame chart of a kind of pump control unit that Fig. 9 is provided by the embodiment of the present invention.
Icon：10- electronic equipments；11- memories；12- processors；13- network modules；20- pump control units；21-
Acquisition module；22- quadratic power controlling curve computing modules；23- efficiency critical point computing modules；24- control modules.
Specific embodiment
Further investigation reveals that the existing technology controlled water pump is believed using control manually or according to sensor mostly
It number is controlled, operating status is analog quantity.
For the control technology of belt sensor, when controlling multiple water pumps, water pump is controlled using sensor
Frequency conversion is likely to appear in the signal still tracked when first water pump expires frequency less than second water pump is started, and so on, it can lead
Cause inefficiency during multiple water pump operations.
For manual control technology, during single water pump operation, operational efficiency is high in the larger context, but multiple water
When pump is run together, the operational efficiency in some operation areas may be less than the operational efficiency of single water pump, also result in more
The overall operation efficiency of a water pump is low.
The defects of present in above scheme of the prior art, be that inventor is obtaining after putting into practice and carefully studying
As a result, therefore, the solution that the discovery procedure of the above problem and the hereinafter embodiment of the present invention are proposed regarding to the issue above
Scheme all should be the contribution that inventor makes the present invention in process of the present invention.
Based on the studies above, an embodiment of the present invention provides a kind of water pump control method, device and electronic equipments, can improve
Efficiency when multiple water pumps are run simultaneously.
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment only
It is the part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings
The component of embodiment can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
Fig. 1 shows the block diagram of a kind of electronic equipment 10 that the embodiment of the present invention is provided.The embodiment of the present invention
In electronic equipment 10 can be with data storage, transmission, processing function server-side, as shown in Figure 1, electronic equipment 10 wraps
It includes：Memory 11, processor 12, network module 13 and pump control unit 20.
It is directly or indirectly electrically connected between memory 11, processor 12 and network module 13, to realize the biography of data
Defeated or interaction.It is electrically connected for example, these elements can be realized from each other by one or more communication bus or signal wire.
Be stored with pump control unit 20 in memory 11, the pump control unit 20 include it is at least one can be with software or firmware
(firmware) form is stored in the software function module in the memory 11, and the processor 12 is stored in by operation
The pump control unit 20 in software program and module, such as the embodiment of the present invention in memory 11, it is various so as to perform
The water pump control method in the embodiment of the present invention is realized in application of function and data processing.
Wherein, the memory 11 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, for memory 11 for storing program, the processor 12 performs described program after execute instruction is received.
The processor 12 may be a kind of IC chip, have the processing capacity of data.Above-mentioned processor 12
Can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc..It can realize or perform each method disclosed in the embodiment of the present invention, step and patrol
Collect block diagram.General processor can be microprocessor or the processor can also be any conventional processor etc..
Network module 13 is used to establish communication connection between electronic equipment 10 and other communication terminal devices by network,
Realize the transmitting-receiving operation of network signal and data.Above-mentioned network signal may include wireless signal or wire signal.
It is appreciated that structure shown in FIG. 1 is only to illustrate, electronic equipment 10 may also include it is more than shown in Fig. 1 or
Less component or with the configuration different from shown in Fig. 1.Each component shown in Fig. 1 may be used hardware, software or its
Combination is realized.
The embodiment of the present invention also provides a kind of computer readable storage medium, and the readable storage medium storing program for executing includes computer journey
Sequence.Electronic equipment 10 where the readable storage medium storing program for executing is controlled to perform following water pump controlling party during the computer program operation
Method.
In the present embodiment, pump control unit 20 can be PLC main controllers.Optionally, PLC main controllers and multiple PLC
Slave controller is communicated by RS485 and connected, and each PLC slave controllers are connected with each water pump communication with frequency converter, and PLC main controllers are real
Now to the control of each PLC slave controllers and each water pump.
In the present embodiment, the quantity of PLC slave controllers can be 4, and the quantity of water pump can be 4 each.
Fig. 2 shows the flow charts of a kind of water pump control method that the embodiment of the present invention is provided.The method is related
Method and step defined in flow is applied to electronic equipment 10, can be realized by the processor 12.It below will be to shown in Fig. 2
Idiographic flow is described in detail：
Step S21, obtains the test run data of each water pump in multiple water pumps to be controlled, and by the test run
Data are stored.
PLC main controllers obtain the test run data of 4 water pumps, and the test run data of each water pump are stored respectively
Into corresponding PLC slave controllers.
For example, the number of 4 water pumps can be pump1, pump2, pump3And pump4, the number of 4 PLC slave controllers can be PLC-
1st, PLC-2, PLC-3 and PLC-4.
In another example pump1Operation data be stored in PLC-1, pump2Operation data be stored in PLC-2, pump3Operation
Data are stored in PLC-3, pump4Operation data be stored in PLC-4.
Optionally, Fig. 3, Fig. 4 and Fig. 5 are please referred to, test run data can be lift-flow curve, power versus flow song
Line and efficiency-flow curve, these test run data can be overall operation data when multiple water pumps are operated together later
Reference is provided.
Please continue to refer to Fig. 5, as seen from the figure, under the conditions of same frequency, efficiency-flow curve of different pumps is different,
These efficiency-flow curves can be for after the calculating of Critical Efficiency point data basis is provided.
Step S22, for each water pump, judge default operation data whether the water pump test run data model
In enclosing, if the quadratic power control that the default operation data in the test run data area of the water pump, calculates the water pump is bent
Line.
In the present embodiment, default operation data can be zero delivery point A and design point B.Wherein, it zero delivery point A and sets
Enumeration B determines the control line of entire water pump system, and water pump system can be moved according to the control line.It is appreciated that water pump system
System can include multiple water pumps.Optionally, zero delivery point A and design point B can be set according to actual needs.
For example, the flow and lift of setting zero delivery point A and design point B, and by PLC main controllers, PLC-1, PLC-2,
The communications identification position for the network configuration that PLC-3 and PLC-4 are formed is initialized, can realize in this way PLC main controllers, PLC-1,
Communication between PLC-2, PLC-3, PLC-4 and each water pump.
In another example for pump1, judge zero delivery point A and design point B whether in the pump for being stored in PLC-11Test run
In data area.
If point A and design point B are in the pump for being stored in PLC-1 for zero delivery1Test run data area in, pass through PLC-1
Calculate pump1Quadratic power controlling curve.
If zero delivery point A and design point B be not in the pump for being stored in PLC-11Test run data area in, based on two points
Method principle recalculates zero delivery point A and design point B, and is calculated and pumped by PLC-11Quadratic power controlling curve.
It is appreciated that for pump2, pump3And pump4The above method can also be used and carry out analysis calculating, therefore do not make herein more
Explanation.
Step S23, for each quadratic power controlling curve, the efficiency-flow for obtaining the quadratic power controlling curve is bent
Line；Multiple efficiency critical points are calculated, and according to each corresponding effect of efficiency critical point setting according to institute's effective percentage-flow curve
Rate critical bandwidth.
In the present embodiment, the quantity of quadratic power controlling curve is 4, and correspondingly, efficiency-flow curve is 4.
It is to be understood that PLC main controllers read 4 efficiency-flow curves from 4 quadratic power controlling curves, based on two
Point-score principle calculates lift, frequency and the power at 3 efficiency critical points and each efficiency critical point.
Fig. 6 is please referred to, lists the one of which of step S23 in the present embodiment by step S231 and step S232
Realization method.
Step S231 obtains default maximum stream flow QmaxWith preset minimum flow Qmin。
Optionally, according to QmaxAnd QminIt calculates and obtains average flow rate Q0, wherein,
Step S232 for each efficiency critical point to be solved, judges QmaxWith QminDifference whether be less than setting value,
If the difference is less than setting value, by QmaxOr QminAs the efficiency critical point.
Optionally, setting value can be 0.1m3/ h can judge Q by following stepsmaxWith QminDifference whether be less than
Setting value：
In the present embodiment, for x-th of efficiency-flow curve, acquisition and Q0Adjacent flow Qx1And Qx2, for xth+
1 efficiency-flow curve, acquisition and Q0Adjacent flow Q(x+1)1And Q(x+1)2, wherein x ∈ [1,3].According to linear interpolation formula
Obtain x-th of interpolation ηx0With (x+1)th interpolation η(x+1)0, wherein, linear interpolation formula is：
Obtaining x-th of interpolation ηi0With (x+1)th interpolation η(i+1)0Later, by x-th of interpolation ηi0With (x+1)th interpolation
η(i+1)0It is compared：
If ηx0>η(x+1)0, then Qmin=Q0；
If ηx0<η(x+1)0, then Qmax=Q0。
Judge Qmax-QminWhether 0.1m is less than3/h：
If Qmax-Qmin<0.1m3/ h, by QmaxOr QminAs x-th of efficiency critical point.
If Qmax-Qmin≥0.1m3/ h chooses QmaxAnd Q0Or QminAnd Q0Re-start step S231's and step S232
It calculates.
After having calculated 3 efficiency critical points, corresponding efficiency critical bandwidth, the effect are set according to each efficiency critical point
Whether rate critical bandwidth can be as starting the decision conditions of indivedual water pumps in multiple water pumps.
Step S24, by efficiency-flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth into
Row compares, and comparison result is obtained, according to the comparison result to the operation shape of each water pump in all water pumps to be controlled
State is controlled.
It after 3 efficiency critical points are determined, is controlled using quadratic power controlling curve pumping accordingly, by each pump
Efficiency-flow curve is compared acquisition comparison result, and according to the comparison result in 4 water pumps with each efficiency critical bandwidth
The operating status of each water pump controlled.
Fig. 7 is please referred to, for example, first turning on pump1, pump1It brings into operation, pumps1Efficiency-flow curve in figure from it is left toward
Right 1st curve.Flow is adjusted, as flow increases, pump1Operational efficiency start to reduce, work as pump1Operational efficiency
When being reduced in the efficiency critical bandwidth where the 1st efficiency critical point (critical point 1 in Fig. 7), pump is opened2, and adjust pump1
And pump2Frequency, pump at this time1And pump2It is operated together.
Please continue to refer to Fig. 7, with reference to pump1And pump2Rough system effectiveness-flow curve of composition is (by the from left to right the 1st in figure
The part of root curve and the 2nd more than 2nd intersections of complex curve curve) as it can be seen that as flow increases, pump1And pump2It is operated together
Efficiency first increase and reduce afterwards, work as pump1And pump2The efficiency being operated together is reduced to the 2nd efficiency critical point (critical point in Fig. 7
2) when in the efficiency critical bandwidth where, pump is opened3, and adjust pump1, pump2And pump3Frequency, pump at this time1, pump2And pump3Jointly
Operation.
Please continue to refer to Fig. 7, with reference to pump1, pump2And pump3Rough system effectiveness-flow curve of composition is (by from left to right in figure
The part of 2nd curve and the 3rd more than 3rd intersections of complex curve curve) as it can be seen that as flow increases, pump1, pump2And pump3Altogether
First increased with the efficiency run reduces afterwards, works as pump1, pump2And pump3The efficiency being operated together is reduced to the 3rd efficiency critical point (Fig. 7
In critical point 3) where efficiency critical bandwidth in when, open pump4, and adjust pump1, pump2, pump3And pump4Frequency, at this time
Pump1, pump2, pump3And pump4It is operated together.
Please continue to refer to Fig. 7, as seen from the figure, with the increase of flow, the efficiency at critical point is higher and higher, realizes pair
Efficiency when multiple water pumps are operated together maximizes.
Optionally, please continue to refer to Fig. 7, work as pump1, pump2, pump3And pump4The efficiency being operated together is reduced to the 3rd efficiency and faces
When in the efficiency critical bandwidth where boundary's point (critical point 3 in Fig. 7), pump can be closed4, and adjust pump1, pump2And pump3Frequency
Rate pumps at this time1, pump2And pump3It is operated together.
Optionally, when 4 pumps are run simultaneously, when flow is more than the flow of design point B, PLC main controllers obtain alarm signal
Number, 4 pumps can be accordingly opened and closed according to 3 Critical Efficiencies o'clock.
It is appreciated that when pump1When being run first, pump2, pump3And pump4It can be understood as following pump.Due to pump1, pump2、
Pump3And pump4It is to be made of different quadratic power controlling curves respectively, analysis above is only rough estimate system effectiveness-flow
Curve needs to recalculate the quadratic power controlling curve obtained when being operated together when being operated together.
In the present embodiment, the calculating of quadratic power controlling curve when being operated together to multiple water pumps is as follows：
For example, pump1Isolated operation turns pump1And pump2When being operated together, pump2Lift to switch when pump1Lift subject to, i.e.,
Pump2Lift be set as pumping1Lift, flow halves, pumped according to this1And pump2Quadratic power control when being operated together is bent
Line.In another example pump1, pump2And pump3When being operated together, to switch at this time when pumps1Lift subject to, pump2And pump3Lift take pump1
Lift, flow divided by three pumped according to this1, pump2And pump3Quadratic power controlling curve when being operated together.Pass through this method
Quadratic power controlling curve when obtained multiple pumps are operated together is more accurate.When wherein, can be operated together according to multiple pumps
Quadratic power controlling curve obtains system effectiveness-flow curves of multiple pumps when being operated together as shown in figure 8, as seen from the figure, except
Two endpoints of curve, curve is there are three turning point, i.e. three efficiency critical points, with the increase of flow, the effect at critical point
Rate is higher and higher, and the efficiency of system twist increases.As seen from the figure, which realizes common to multiple water pumps
Efficiency during operation maximizes.
On the basis of the above, as shown in figure 9, an embodiment of the present invention provides a kind of pump control unit 20, the water pump
Control device 20 includes：Acquisition module 21, quadratic power controlling curve computing module 22, efficiency critical point computing module 23 and control
Module 24.
Acquisition module 21, for obtaining described in the test run data of each water pump in multiple water pumps to be controlled and general
Test run data are stored.
Since acquisition module 21 is similar with the realization principle of step S21 in Fig. 2, do not illustrate more herein.
Quadratic power controlling curve computing module 22, for being directed to each water pump, judge default operation data whether
In the test run data area of the water pump, if the default operation data in the test run data area of the water pump, is counted
Calculate the quadratic power controlling curve of the water pump.
Since quadratic power controlling curve computing module 22 is similar with the realization principle of step S22 in Fig. 2, do not make herein
More explanations.
Efficiency critical point computing module 23 for being directed to each quadratic power controlling curve, obtains quadratic power control
The efficiency of curve-discharge relation data；Multiple efficiency critical points are calculated, and according to each according to institute's effective percentage-discharge relation data
The efficiency critical point sets corresponding efficiency critical bandwidth；
Since efficiency critical point computing module 23 is similar with the realization principle of step S23 in Fig. 2, do not make herein more
Explanation.
Control module 24, for obtaining the actual operating data of each water pump to be controlled, by each actual motion number
It is compared according to each efficiency critical bandwidth, comparison result is obtained, according to the comparison result to described all to be controlled
The operating status of each water pump in water pump is controlled, to realize that the operational efficiency of all water pumps to be controlled maximizes
Since control module 24 is similar with the realization principle of step S24 in Fig. 2, do not illustrate more herein.
To sum up, water pump control method, device and the electronic equipment that the embodiment of the present invention is provided, can be according to efficiency comes first
Principle is adjusted the unlatching quantity and running frequency of water pump, ensure that efficiency when multiple water pumps are operated together maximizes.
Further, operating status is converted into digital quantity by traditional analog quantity, is the big data shape of entire water pump system
It provides the foundation into processing.
Further, the accurate solution to multiple efficiency critical points can be realized using dichotomy principle, further ensured
Reliable, the Effec-tive Function of multiple water pumps.
In the several embodiments provided in the embodiment of the present invention, it should be understood that disclosed device and method also may be used
To realize by another way.Device and method embodiment described above is only schematical, for example, in attached drawing
Flow chart and block diagram show the device of multiple embodiments according to the present invention, the possibility of method and computer program product is realized
Architectural framework, function and operation.In this regard, each box in flow chart or block diagram can represent module, a program
A part for section or code, a part for the module, program segment or code are used to implement defined patrol comprising one or more
Collect the executable instruction of function.It should also be noted that at some as the function of in the realization method replaced, being marked in box
It can be occurred with being different from the sequence marked in attached drawing.For example, two continuous boxes can essentially be held substantially in parallel
Row, they can also be performed in the opposite order sometimes, this is depended on the functions involved.It is also noted that block diagram and/or
The combination of each box in flow chart and the box in block diagram and/or flow chart can use function or dynamic as defined in performing
The dedicated hardware based system made is realized or can be realized with the combination of specialized hardware and computer instruction.
In addition, each function module in each embodiment of the present invention can integrate to form an independent portion
Point or modules individualism, can also two or more modules be integrated to form an independent part.
If the function is realized in the form of software function module and is independent product sale or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially in other words
The part contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be
People's computer, electronic equipment 10 or the network equipment etc.) perform all or part of step of each embodiment the method for the present invention
Suddenly.And aforementioned storage medium includes：USB flash disk, read-only memory (ROM, Read-Only Memory), is deposited mobile hard disk at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic disc or CD.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to the packet of nonexcludability
Contain so that process, method, article or equipment including a series of elements not only include those elements, but also including
It other elements that are not explicitly listed or further includes as elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, also there are other identical elements in article or equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of water pump control method, which is characterized in that the method includes：
The test run data of each water pump in multiple water pumps to be controlled are obtained, and the test run data are deposited
Storage；
For each water pump, default operation data is judged whether in the test run data area of the water pump, if described
Default operation data calculates the quadratic power controlling curve of the water pump in the test run data area of the water pump；
For each quadratic power controlling curve, efficiency-flow curve of the quadratic power controlling curve is obtained；According to effectively
Rate-flow curve calculates multiple efficiency critical points, and sets corresponding efficiency critical bandwidth according to each efficiency critical point；
Efficiency-flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth are compared, obtained
Comparison result controls the operating status of each water pump in all water pumps to be controlled according to the comparison result,
To realize that the operational efficiency of all water pumps to be controlled maximizes.
2. water pump control method according to claim 1, which is characterized in that calculated according to institute's effective percentage-flow curve more
The step of a efficiency critical point, including：
According to institute's effective percentage-flow curve, multiple efficiency critical points are calculated using dichotomy.
3. water pump control method according to claim 1, which is characterized in that the quantity of the multiple water pump to be controlled is n
A, the quantity of the multiple efficiency critical point is m, m=n-1, and the efficiency corresponding to each water pump to be controlled-flow is bent
Line is compared with each efficiency critical bandwidth, comparison result is obtained, according to the comparison result to described all to be controlled
The step of operating status of each water pump in water pump is controlled, including：
Judge that the efficiency whether efficiency-flow curve of i-th of water pump to be controlled is located at corresponding to j-th of efficiency critical point is critical
In bandwidth, if calculating flow-computational efficiency curve of i-th of water pump to be controlled is located at the effect corresponding to j-th of efficiency critical point
In rate critical bandwidth, i+1 water pump to be controlled is opened, and is obtained i-th and system during i+1 water pump operation to be controlled
Efficiency-flow curve, wherein i ∈ [1, n-1], j ∈ [1, m], i=j.
4. water pump control method according to claim 3, which is characterized in that the method further includes：
When opening n water pumps to be controlled, system effectiveness-flow curve during n water pump operations to be controlled is obtained, by n
Efficiency critical bandwidth corresponding to system effectiveness-flow curve and m-th of efficiency critical point during water pump operation to be controlled carries out
Compare, if system effectiveness-flow curve during n water pump operations to be controlled is located at the efficiency corresponding to m-th of efficiency critical point
In critical bandwidth, n-th of water pump to be controlled is closed.
5. water pump control method according to claim 2, which is characterized in that according to institute's effective percentage-flow curve, using two
The step of calculation of group dividing multiple efficiency critical points, including：
Obtain default maximum stream flow QmaxWith preset minimum flow Qmin；
For each efficiency critical point to be solved, Q is judgedmaxWith QminDifference whether be less than setting value, if the difference is small
In setting value, by QmaxOr QminAs the efficiency critical point.
6. water pump control method according to claim 5, which is characterized in that the setting value is 0.1m3/h；Judge QmaxWith
QminDifference whether be less than setting value, if the difference be less than setting value, by QmaxOr QminStep as the efficiency critical point
Suddenly, including：
According to QmaxAnd QminIt calculates and obtains average flow rate Q0；
For x-th of efficiency-flow curve, acquisition and Q0Adjacent flow Qx1And Qx2, for (x+1)th efficiency-flow curve,
Acquisition and Q0Adjacent flow Q(x+1)1And Q(x+1)2；
X-th of interpolation η is obtained according to linear interpolation formulax0With (x+1)th interpolation η(x+1)0, the linear interpolation formula is：
By x-th of interpolation ηi0With (x+1)th interpolation η(i+1)0It is compared, if ηx0>η(x+1)0, then Qmin=Q0If ηx0<η(x+1)0,
Then Qmax=Q0；
Judge Qmax-QminWhether 0.1m is less than3/ h, if Qmax-Qmin<0.1m3/ h, by QmaxOr QminIt is critical as x-th of efficiency
Point；
Wherein, x ∈ [1,3].
7. water pump control method according to claim 1, which is characterized in that the method further includes：
If the default operation data recalculates default operation outside the test run data area of the water pump, using dichotomy
Data.
8. a kind of pump control unit, which is characterized in that the pump control unit includes：
Acquisition module for the test run data for obtaining each water pump in multiple water pumps to be controlled and is transported the test
Row data are stored；
Whether quadratic power controlling curve computing module for being directed to each water pump, judges default operation data in the water pump
Test run data area in, if the default operation data calculates the water in the test run data area of the water pump
The quadratic power controlling curve of pump；
Efficiency critical point computing module for being directed to each quadratic power controlling curve, obtains the quadratic power controlling curve
Efficiency-flow curve；Multiple efficiency critical points are calculated, and according to each efficiency critical point according to institute's effective percentage-flow curve
Set corresponding efficiency critical bandwidth；
Control module, for by efficiency-flow curve corresponding to each water pump to be controlled and each efficiency critical bandwidth
It is compared, comparison result is obtained, according to operation of the comparison result to each water pump in all water pumps to be controlled
State is controlled, to realize that the operational efficiency of all water pumps to be controlled maximizes.
9. a kind of electronic 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 is realized when performing the computer program described in any one of claim 1~7
Water pump control method.
10. a kind of computer readable storage medium, which is characterized in that the readable storage medium storing program for executing includes computer program, described
Electronic equipment perform claim requires 1~7 any one of them computer program controls the readable storage medium storing program for executing when running where
Water pump control method.
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| CN201711399691.7A CN108131281A (en) | 2017-12-21 | 2017-12-21 | Water pump control method, device and electronic equipment |
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