CN109595746B - Water pump operation efficiency optimization control method and device and computer equipment - Google Patents
Water pump operation efficiency optimization control method and device and computer equipment Download PDFInfo
- Publication number
- CN109595746B CN109595746B CN201811560218.7A CN201811560218A CN109595746B CN 109595746 B CN109595746 B CN 109595746B CN 201811560218 A CN201811560218 A CN 201811560218A CN 109595746 B CN109595746 B CN 109595746B
- Authority
- CN
- China
- Prior art keywords
- water pump
- switching
- real
- initial
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 548
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005457 optimization Methods 0.000 title claims abstract description 17
- 238000004378 air conditioning Methods 0.000 claims abstract description 19
- 238000013178 mathematical model Methods 0.000 claims description 63
- 238000004590 computer program Methods 0.000 claims description 33
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 8
- 238000007710 freezing Methods 0.000 description 8
- 230000008014 freezing Effects 0.000 description 8
- 238000004422 calculation algorithm Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000008400 supply water Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001595 flow curve Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The application relates to a water pump operation efficiency optimization control method and device and computer equipment. The method comprises the following steps: acquiring initial operating parameters of a water pump; determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations; and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area. The water pump energy-saving control scheme of the centralized air-conditioning system is provided, so that the energy-saving optimization service is provided in real time, and the energy-saving effect of the air-conditioning system is improved.
Description
Technical Field
The application relates to the technical field of computers, in particular to a method and a device for optimally controlling the operating efficiency of a water pump, computer equipment and a storage medium.
Background
With the increasingly prominent energy problem in China, energy conservation and consumption reduction are imperative, the energy-saving control technology of the centralized air-conditioning system is the key of energy conservation and consumption reduction, and the energy-saving technology of the chilled water pump is of great importance in the energy-saving control technology of the centralized air-conditioning system.
The existing variable flow control technology of the chilled water pump comprises a constant differential pressure control technology of a chilled main pipe, a constant differential temperature control technology of water supply and return of the chilled main pipe, a constant differential pressure control technology of a most unfavorable loop of chilled water and the like; the constant differential pressure control technology of the freezing main pipe is used for detecting the water supply and return differential pressure of the freezing main pipe, calculating the deviation of the water supply and return differential pressure of the freezing main pipe and a set value of the water supply and return differential pressure, and giving out a target frequency output by a controller of the freezing water pump according to a PID algorithm; the constant temperature difference control technology for the supply water and the return water of the freezing main pipe is characterized in that the temperature difference of the supply water and the return water of the freezing main pipe is detected, the deviation of the temperature difference of the supply water and the return water of the freezing main pipe and a set value of the temperature difference is calculated, and a target frequency output by a freezing water controller is given according to a PID algorithm; the most unfavorable loop constant pressure difference control technology of the chilled water is to detect the pressure difference of the farthest tail end in a water loop with the largest water resistance of a tail end air conditioning system, calculate the deviation between the pressure difference and a set value of the pressure difference and give a target frequency output by a chilled water pump controller according to a PID algorithm; however, the operation efficiency of the chilled water pumps under different loads and frequencies is not constant, and therefore, the control technology has the problem of low overall operation efficiency.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus, a computer device, and a storage medium for optimizing and controlling the operation efficiency of a water pump, which can improve the operation efficiency of the water pump.
A water pump operation efficiency optimization control method comprises the following steps:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
In one embodiment, the initial operating parameter comprises an initial water pump flow; the acquiring of the initial operating parameters of the water pump comprises the following steps:
acquiring preset water pump flow, preset water pump lift and preset water pump power;
fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump;
and inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
In one embodiment, the determining a plurality of number of switching zones according to the initial operating parameter includes:
calculating to obtain initial water pump efficiency according to the initial water pump flow, the initial water pump lift and the initial water pump power;
drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency;
determining a coincidence point of operating efficiency curves of different water pump operating quantities under the same frequency as a switching point threshold value;
and determining the number of switching areas according to the switching point threshold value.
In one embodiment, the switch point threshold comprises a first switch point threshold and a second switch point threshold; the determining the coincidence point of the operating efficiency curves of different water pump operating quantities under the same frequency as the switching point threshold value comprises the following steps:
connecting the coincident points to obtain a first boundary line and a second boundary line;
determining coordinate data on the first boundary line as a first switching point threshold;
determining coordinate data on the second demarcation line as a second switching point threshold.
In one embodiment, the number switching regions include a first number switching region, a second number switching region, and a third number switching region; the determining a number of handover regions according to the handover point threshold includes:
determining a first number of switching regions from the coordinate data less than the first switching point threshold;
determining a second number of switching areas from the coordinate data which are greater than the first switching point threshold and smaller than the second switching point threshold;
and determining the coordinate data which is larger than the second switching point threshold value to be a third number of switching areas.
In one embodiment, the real-time operation parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the acquiring of the real-time operation parameters of the water pump, and when the real-time operation parameters meet a certain operation quantity switching region, controlling the quantity of the water pump operation to be switched to the water pump operation quantity corresponding to the quantity switching region, includes:
acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
calculating to obtain the real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency;
and switching the running number of the water pumps to the running number of the water pumps corresponding to the number switching area according to the corresponding number switching area.
In one embodiment, the water pump comprises at least one of a chilled water pump and a cooling water pump in the air conditioning equipment.
In one embodiment, the method comprises:
and correcting the semi-empirical mathematical model of the water pump.
In one embodiment, the water pump semi-empirical mathematical model includes first model coefficients, and the modifying the water pump semi-empirical mathematical model includes:
acquiring historical operating parameters;
screening the historical operating parameters;
fitting the screened historical operating parameters to obtain a second model coefficient;
and updating the first model coefficient in the water pump semi-empirical mathematical model by using the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
In one embodiment, before obtaining the historical operating parameters, the method further includes:
collecting operation parameters of a preset time period;
forming historical operating parameters by using the operating parameters of the preset time period;
and saving the historical operating parameters to a storage device.
In one embodiment, the fitting the filtered historical operating parameters to obtain a second model coefficient includes:
fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump;
and extracting the second model coefficient from the new water pump semi-empirical mathematical model.
An apparatus for optimizing control of operating efficiency of a water pump, the apparatus comprising:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
According to the method and the device for the optimal control of the operating efficiency of the water pump, the computer equipment and the storage medium, the initial operating parameters of the water pump are obtained; determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations; acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area; the water pump energy-saving control scheme of the centralized air-conditioning system is provided, so that the energy-saving optimization service is provided in real time, and the energy-saving effect of the air-conditioning system is improved.
Drawings
FIG. 1 is a schematic flow chart of a method for optimizing and controlling the operating efficiency of a water pump according to an embodiment;
FIG. 2 is a schematic illustration of an operating efficiency curve of a water pump of an embodiment;
fig. 3 is a block diagram of a water pump operation efficiency optimization control apparatus according to an embodiment;
FIG. 4 is an internal block diagram of a computer device of an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a method for controlling the operation efficiency of a water pump, comprising the following steps:
step S201, acquiring initial operation parameters of the water pump;
in this embodiment, the control method may be applied to an air conditioning system, where the air conditioning system may include various air conditioning devices, such as a cooling water pump, a chilled water pump, a cooling tower, and a cold water blower, and an execution main body of this embodiment may be a computer device in the air conditioning system, or a controller in the computer device; for example, the controller may control the operation of a cooling water pump, a chilled water pump.
Further applied to this embodiment, the initial operation parameters of the water pump may include an initial water pump flow, an initial water pump lift, an initial water pump power, an initial water pump efficiency, and the like, because the water pump may include a cooling water pump and a chilled water pump in an air conditioning device; from the classification, the initial operation parameters of the water pump may include an initial water pump flow, an initial water pump lift, an initial water pump power, and an initial water pump efficiency of the cooling water pump, and may further include an initial water pump flow, an initial water pump lift, an initial water pump power, and an initial water pump efficiency of the chilled water pump.
Specifically, the initial operating parameter may be data acquired in real time and then stored; of course, the initial operating parameters calculated by the fitted mathematical model are also possible.
Step S202, determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
in practice, in this embodiment, a plurality of quantity switching regions may be determined according to the initial operating parameter, wherein each quantity switching region is associated with a quantity of water pump operations.
And drawing a plurality of operation efficiency curves under different frequencies and water pump operation quantities according to the initial operation parameters, and determining a quantity switching area according to the coincidence point of the operation efficiency curves.
That is, each quantity switching region may be determined by a coincidence point between a plurality of operation efficiency curves at different plotted frequencies and water pump operation quantities. It should be noted that the coincidence point does not include the initial coincidence point of the water pump operation, i.e., does not include the zero point.
The number of the number switching regions is plural, each number switching region has a number of water pump operations associated with it, for example, the number of water pump operations may be 1, 2, 3, 4, etc., and the number switching regions may also include a first number switching region, a second number switching region, a third number switching region, a fourth number switching region, etc.
For example, the first number of switching regions may be associated with a water pump operation number of 1 station, the second number of switching regions may be associated with a water pump operation number of 2 stations, the third number of switching regions may be associated with a water pump operation number of 3 stations, and the fourth number of switching regions may be associated with a water pump operation number of 4 stations, which is not limited in this embodiment;
it should be noted that the quantity switching region represents a region composed of the initial operating parameters included in the plotted operating efficiency curve.
Step S203, acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters meet a certain operation number switching area.
In this embodiment, when the number switching area is determined, the real-time operation parameters of the water pump are obtained, and similarly, the real-time operation parameters may also include real-time water pump flow, real-time water pump lift, real-time water pump power, and real-time water pump efficiency.
Further, the real-time operation parameters are matched with the operation quantity switching areas, and the quantity switching areas which are met by the real-time operation parameters are identified, because the quantity switching areas and the water pump operation quantity have corresponding relations, after the quantity switching areas are obtained, the corresponding water pump operation quantity can be obtained, and the water pump is controlled to start or stop operating according to the water pump operation quantity. If the number of the water pumps is consistent with the number of the water pumps which are currently running, the switching of the running number of the water pumps does not need to be controlled.
According to the water pump operation efficiency optimization control method provided by the embodiment, initial operation parameters of the water pump are obtained; determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations; acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area; the water pump energy-saving control scheme of the centralized air-conditioning system is provided, so that the energy-saving optimization service is provided in real time, and the energy-saving effect of the air-conditioning system is improved.
In another embodiment, the initial operating parameter comprises an initial water pump flow; the acquiring of the initial operating parameters of the water pump comprises the following steps: acquiring preset water pump flow, preset water pump lift and preset water pump power; fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump; and inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
In this embodiment, first, preset operation parameters may be obtained, where the preset operation parameters may include a preset water pump flow, a preset water pump lift, and a preset water pump power; each preset water pump flow corresponds to a preset water pump lift and preset water pump power; it should be noted that the preset water pump flow and the preset water pump lift can be extracted from the water pump lift and flow curve; the preset water pump power and the preset water pump flow can be extracted from the power and flow curve of the water pump.
Further, fitting the preset water pump flow, the preset water pump lift and the preset water pump power obtained from the curve through a least square statistical measurement algorithm to obtain a water pump lift calculation formula and a water pump power calculation formula, namely obtaining the semi-empirical mathematical model of the water pump.
And inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain the initial water pump lift and the initial water pump power.
In another embodiment, said determining a plurality of number of switching zones based on said initial operating parameters comprises: calculating to obtain initial water pump efficiency according to the initial water pump flow, the initial water pump lift and the initial water pump power; drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency; determining a coincidence point of operating efficiency curves of different water pump operating quantities under the same frequency as a switching point threshold value; and determining the number of switching areas according to the switching point threshold value.
Specifically, the initial water pump efficiency may be calculated according to the initial water pump flow, the initial water pump head, and the initial water pump power in the initial operation parameters.
Furthermore, multiple operation efficiency curves under different frequencies and operation quantities of the water pumps are drawn according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency, namely, the multiple operation efficiency curves under different frequencies and operation quantities of the water pumps are drawn by taking the initial water pump flow as an abscissa and the initial water pump efficiency or the initial water pump lift as an ordinate.
Referring to FIG. 2, a schematic diagram of an operating efficiency curve of a water pump of the present embodiment is shown; as shown in fig. 2, the curve with the reference number 1 refers to an operation efficiency curve with the frequency of 30Hz and the number of water pumps operating 1; the curve with the reference number 2 refers to an operation efficiency curve with the frequency of 35Hz and the operation number of 1 water pump; the curve with the reference number 3 is an operation efficiency curve with the frequency of 40Hz and the operation number of 1 water pump; the curve with the reference number of 4 is an operation efficiency curve with the frequency of 45Hz and the operation number of 1 water pump; the curve with the reference number 5 is an operation efficiency curve with the frequency of 50Hz and the operation number of 1 water pump;
the curve marked with 6 is an operation efficiency curve with the frequency of 30Hz and the operation number of 2 water pumps; the curve with the reference number of 7 is an operation efficiency curve with the frequency of 35Hz and the operation number of 2 water pumps; the curve with the reference number of 8 is an operation efficiency curve with the frequency of 40Hz and the operation number of 2 water pumps; the curve with the reference number of 9 is an operation efficiency curve with the frequency of 45Hz and the operation number of 2 water pumps; the curve with the reference number of 10 refers to an operation efficiency curve with the frequency of 50Hz and the operation number of 2 water pumps;
the curve with the reference number of 11 refers to an operation efficiency curve with the frequency of 30Hz and the operation number of 3 water pumps; the curve with the reference number of 12 refers to an operation efficiency curve with the frequency of 35Hz and the operation number of 3 water pumps; the curve marked with 13 is an operating efficiency curve with the frequency of 40Hz and the number of water pumps in operation of 3; the curve with the reference number of 14 refers to an operation efficiency curve with the frequency of 45Hz and the operation number of 3 water pumps; the curve with the reference number of 15 is an operation efficiency curve with the frequency of 50Hz and the operation number of 3 water pumps;
the coincident point denoted by reference numeral 16 is an intersection point of the curve denoted by reference numeral 1 and the curve denoted by reference numeral 6; the coincident point denoted by reference numeral 17 is an intersection of the curve denoted by reference numeral 2 and the curve denoted by reference numeral 7; the coincident point of reference numeral 18 is the intersection of the curve of reference numeral 3 and the curve of reference numeral 8; the coincident point of reference numeral 19 is the intersection of the curve of reference numeral 4 and the curve of reference numeral 9; the coincident point denoted by reference numeral 20 is an intersection of the curve denoted by reference numeral 5 and the curve denoted by reference numeral 10;
the coincident point denoted by reference numeral 21 is an intersection of the curve denoted by reference numeral 6 and the curve denoted by reference numeral 11; the coincident point denoted by reference numeral 22 is the intersection of the curve denoted by reference numeral 7 and the curve denoted by reference numeral 12; the coincident point denoted by reference numeral 23 is an intersection of the curve denoted by reference numeral 8 and the curve denoted by reference numeral 13; the coincident point denoted by reference numeral 24 is the intersection of the curve denoted by reference numeral 9 and the curve denoted by reference numeral 14; the coincident point denoted by reference numeral 25 is the intersection of the curve denoted by reference numeral 10 and the curve denoted by reference numeral 15;
specifically, coincident points on the same side are connected to obtain a first boundary line, coordinate data on the boundary line are determined as a first switching point threshold value, and coordinate data smaller than the first switching point threshold value are determined as a first number switching area; in addition, the coincident points on the other side are connected to obtain a second boundary line, the coordinate data on the boundary line is determined as a second switching point threshold value, and the coordinate data which are greater than the first switching point threshold value and less than the second switching point threshold value are determined as a second number switching area; further, coordinate data greater than the second switching point threshold is determined for a third number of switching zones.
The switching point threshold represents a set of a plurality of coordinate data on the first boundary line or the second boundary line, that is, the switching point threshold may include a first switching point threshold and a second switching point threshold, the abscissa of the coordinate data is the water pump flow, and the ordinate is the water pump efficiency or the water pump lift; correspondingly, the number switching region may include a first number switching region, a second number switching region, and a third number switching region;
that is, the number of switching regions is also a set of a plurality of coordinate data, for example, a set of coordinate data for which the first number of switching regions is less than the first switching point threshold; the second number of switching regions is a set of coordinate data greater than the first switching point threshold and less than the second switching point threshold; the third number of switching regions is a set of coordinate data greater than the second switching point threshold.
For example, the coincident points labeled 16-20 are connected to form a first boundary line; connecting coincident points labeled 21-25 to form a second boundary line; a first switching point threshold value and a second switching point threshold value can be obtained, wherein the first boundary line represents a switching boundary line between an operation efficiency curve with the number of running water pumps of 1 in different frequencies and an operation efficiency curve with the number of running water pumps of 2 in different frequencies; the second boundary line represents a switching boundary line between an operating efficiency curve with the running number of 2 sewage pumps with different frequencies and an operating efficiency curve with the running number of 3 sewage pumps with different frequencies;
according to the relation between the quantity switching area and the water pump operation quantity, the water pump operation quantity associated with the first quantity switching area is 1, the water pump operation quantity associated with the second quantity switching area is 2, the water pump operation quantity associated with the third quantity switching area is 3, and the water pump operation quantity is switched according to the quantity switching area, so that the efficiency of the water pump can be guaranteed to be kept at a higher level all the time, and the energy-saving effect is improved.
In another embodiment, the real-time operating parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the acquiring of the real-time operation parameters of the water pump, and when the real-time operation parameters meet a certain operation quantity switching region, controlling the quantity of the water pump operation to be switched to the water pump operation quantity corresponding to the quantity switching region, includes: acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power; calculating to obtain the real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power; identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency; and switching the number of the water pumps running into the number of the water pumps running corresponding to the number switching area according to the corresponding number switching area.
In this embodiment, after the real-time operation parameters of the water pump are obtained, the corresponding quantity switching regions are identified according to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency, and the quantity of the water pumps operating is controlled according to the quantity switching regions for switching.
Comparing the real-time operation parameter with the coordinate data of the quantity switching area, wherein the abscissa of the coordinate data is the flow of the water pump, and the ordinate of the coordinate data is the efficiency or the lift of the water pump; and matching the real-time operation parameter with the vertical and horizontal coordinates in the coordinate data, and judging which quantity switching area the real-time operation parameter conforms to, so as to identify the corresponding quantity switching area.
For example, when the number switching area corresponding to the real-time operation parameter is identified as a second number switching area, and the number of the water pumps operating in the second number switching area is 2, controlling the number of the water pumps to be switched to 2; and if the quantity switching area corresponding to the real-time operation parameters is identified as a first quantity switching area, and the number of the water pumps which are associated with the first quantity switching area is 1, controlling the quantity of the water pumps to be switched to 1.
In a preferred example of this embodiment, the actual water pump operation number may also be calculated in real time, where the actual water pump operation number refers to data of a water pump currently operating, and the water pump operation number may be controlled to be switched according to the actual water pump operation number and the corresponding number switching area.
For example, if the actual number of the water pumps is 1, and the number switching area corresponding to the real-time operation parameter is identified as a second number switching area, and the number of the water pumps associated with the second number switching area is 2, the number of the water pumps is controlled to be switched from 1 to 2; if the quantity switching area corresponding to the real-time operation parameters is identified as a first quantity switching area, and the number of the water pumps which are associated with the first quantity switching area is 1, the water pumps are not controlled to switch the operation quantity of the water pumps, and 1 water pump is still kept to operate.
In another embodiment, the method comprises: and correcting the semi-empirical mathematical model of the water pump.
In this embodiment, the semi-empirical mathematical model of the water pump may be corrected, so that the accuracy of fitting data sources is maintained, and the accuracy of the mathematical model is improved.
In another embodiment, the water pump semi-empirical mathematical model includes first model coefficients, and the modifying the water pump semi-empirical mathematical model includes: acquiring historical operating parameters; screening the historical operating parameters; fitting the screened historical operating parameters to obtain a second model coefficient; and updating the first model coefficient in the water pump semi-empirical mathematical model by using the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
Specifically, historical operating parameters can be adopted for fitting to obtain another new water pump semi-empirical mathematical model, a second model coefficient of the model is extracted, and the second model coefficient is updated to a first model coefficient in the water pump semi-empirical mathematical model to obtain a first model coefficient in the corrected water pump semi-empirical mathematical model.
In the screening step, a small part of data with larger difference from the average value of the historical operating parameters in the historical operating parameters is deleted, so that more accurate screened historical operating parameters are obtained.
In another embodiment, before obtaining the historical operating parameters, the method further includes: collecting operation parameters of a preset time period; forming historical operating parameters by using the operating parameters of the preset time period; and saving the historical operating parameters to a storage device.
It should be noted that the historical operating parameters may be composed of operating parameters of a preset time period, and the operating parameters of the preset time period may include the pump lift, the pump power, and the pump flow rate at each time point acquired in real time, and the data acquired in real time is stored in the storage device as the historical operating parameters.
Specifically, the historical operating parameters may be transferred to a cloud server or directly downloaded to a local computer, which is not limited in this embodiment.
In another embodiment, the fitting the filtered historical operating parameters to obtain the second model coefficient includes: fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump; and extracting the second model coefficient from the new water pump semi-empirical mathematical model.
Specifically, fitting calculation is carried out on the screened historical operating parameters based on a least square algorithm to obtain a calculation formula of the pump lift and the pump flow and a calculation formula of the pump power and the pump flow (namely, a new water pump semi-empirical mathematical model is obtained), coefficients contained in the two calculation formulas are second model coefficients, the second model coefficients are used for updating first model coefficients of the original water pump semi-empirical mathematical model, accuracy of data sources is guaranteed, and accuracy of data is further improved.
It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 3, there is provided a water pump operation efficiency optimization control apparatus including: an obtaining module 301, a determining module 302 and a controlling module 303, wherein:
an obtaining module 301, configured to obtain an initial operating parameter of the water pump;
a determining module 302, configured to determine a plurality of quantity switching regions according to the initial operating parameter; wherein each of the number switching regions is associated with a number of water pump operations;
and the control module 303 is configured to obtain a real-time operation parameter of the water pump, and when the real-time operation parameter meets a certain operation quantity switching region, control the number of water pumps to be switched to the number of water pumps corresponding to the quantity switching region.
In one embodiment, the initial operating parameter comprises an initial water pump flow; the acquisition module includes:
the first acquisition submodule is used for acquiring preset water pump flow, preset water pump lift and preset water pump power;
the first fitting submodule is used for fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump;
and the first obtaining submodule is used for inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
In one embodiment, the determining module comprises:
the first calculation submodule is used for calculating to obtain initial water pump efficiency according to the initial water pump flow, the initial water pump lift and the initial water pump power;
the drawing submodule is used for drawing a plurality of operation efficiency curves under different frequencies and water pump operation quantities according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency;
the first determining submodule is used for determining a coincidence point of operating efficiency curves of different water pump operating quantities under the same frequency as a switching point threshold;
and the second determining submodule is used for determining the number of switching areas according to the switching point threshold value.
In one embodiment, the switch point threshold comprises a first switch point threshold and a second switch point threshold; the first determination submodule includes:
a connecting unit for connecting the coincident points to obtain a first boundary line and a second boundary line;
a first determination unit configured to determine coordinate data on the first boundary line as a first switching point threshold;
a second determination unit configured to determine the coordinate data on the second boundary line as a second switching point threshold.
In one embodiment, the number switching regions include a first number switching region, a second number switching region, and a third number switching region; the second determination submodule includes:
a third determination unit configured to determine the coordinate data smaller than the first switching point threshold value as a first number of switching regions;
a fourth determining unit, configured to determine a second number of switching regions from the coordinate data greater than the first switching point threshold and smaller than the second switching point threshold;
a fifth determining unit for determining the coordinate data larger than the second switching point threshold value as a third number of switching regions.
In one embodiment, the real-time operating parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the control module includes:
the first acquisition submodule is used for acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
the second calculation submodule is used for calculating the real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
the identification submodule is used for identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency;
and the switching submodule is used for switching the running quantity of the water pumps to the running quantity of the water pumps corresponding to the quantity switching area according to the corresponding quantity switching area.
In one embodiment, the water pump includes at least one of a chilled water pump and a cooling water pump in an air conditioning apparatus.
In one embodiment, the apparatus comprises:
and the correction module is used for correcting the semi-empirical mathematical model of the water pump.
In one embodiment, the water pump semi-empirical mathematical model includes first model coefficients, and the correction module includes:
the historical operating parameter acquisition submodule is used for acquiring historical operating parameters;
the screening submodule is used for screening the historical operating parameters;
the second fitting submodule is used for fitting the screened historical operating parameters to obtain a second model coefficient;
and the second obtaining submodule is used for updating the first model coefficient in the water pump semi-empirical mathematical model by adopting the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
In one embodiment, the module connected to the historical operating parameter obtaining sub-module further includes:
the acquisition unit is used for acquiring the operation parameters of a preset time period;
the composition unit is used for composing the operation parameters of the preset time period into historical operation parameters;
and the storage unit is used for storing the historical operating parameters to a storage device.
In one embodiment, the second fitting submodule comprises:
the obtaining unit is used for fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump;
and the extraction unit is used for extracting the second model coefficient from the new water pump semi-empirical mathematical model.
For the specific definition of the water pump operation efficiency optimization control device, reference may be made to the above definition of the water pump operation efficiency optimization control method, which is not described herein again. All modules in the water pump operation efficiency optimization control device can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The water pump operation efficiency optimization control device can be used for executing the water pump operation efficiency optimization control method provided by any embodiment, and has corresponding functions and beneficial effects.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 4. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize a water pump operation efficiency optimization control method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 4 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
In one embodiment, the initial operating parameter comprises an initial water pump flow; the processor, when executing the computer program, further performs the steps of:
acquiring preset water pump flow, preset water pump lift and preset water pump power;
fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump;
and inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
calculating to obtain initial water pump efficiency according to the initial water pump flow, the initial water pump lift and the initial water pump power;
drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency;
determining a coincidence point of operating efficiency curves of different water pump operating quantities under the same frequency as a switching point threshold value;
and determining the number of switching areas according to the switching point threshold value.
In one embodiment, the switch point threshold comprises a first switch point threshold and a second switch point threshold; the coincidence point of the operating efficiency curves of different water pump operating quantities under the same frequency is determined as a switching point threshold, and the processor executes the computer program to further realize the following steps:
connecting the coincident points to obtain a first boundary line and a second boundary line;
determining coordinate data on the first boundary line as a first switching point threshold;
determining coordinate data on the second demarcation line as a second switching point threshold.
In one embodiment, the number switching regions include a first number switching region, a second number switching region, and a third number switching region; the processor, when executing the computer program, further performs the steps of:
determining a first number of switching regions from the coordinate data less than the first switching point threshold;
determining a second number of switching areas from the coordinate data which are greater than the first switching point threshold and smaller than the second switching point threshold;
and determining the coordinate data which is larger than the second switching point threshold value to be a third number of switching areas.
In one embodiment, the real-time operating parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the processor, when executing the computer program, further performs the steps of:
acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
calculating to obtain the real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency;
and switching the running number of the water pumps to the running number of the water pumps corresponding to the number switching area according to the corresponding number switching area.
In one embodiment, the water pump includes at least one of a chilled water pump and a cooling water pump in an air conditioning apparatus.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and correcting the semi-empirical mathematical model of the water pump.
In one embodiment, the water pump semi-empirical mathematical model includes first model coefficients, the modifying the water pump semi-empirical mathematical model further implements the following steps when the processor executes the computer program:
acquiring historical operating parameters;
screening the historical operating parameters;
fitting the screened historical operating parameters to obtain a second model coefficient;
and updating the first model coefficient in the water pump semi-empirical mathematical model by using the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
collecting operation parameters of a preset time period;
forming historical operating parameters by using the operating parameters of the preset time period;
and saving the historical operating parameters to a storage device.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump;
and extracting the second model coefficient from the new water pump semi-empirical mathematical model.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring initial operating parameters of a water pump;
determining a plurality of quantity switching areas according to the initial operation parameters; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
In one embodiment, the computer program when executed by the processor further performs the steps of:
in one embodiment, the initial operating parameter comprises an initial water pump flow; the computer program when executed by the processor further realizes the steps of:
acquiring preset water pump flow, preset water pump lift and preset water pump power;
fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump;
and inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
In one embodiment, the computer program when executed by the processor further performs the steps of:
calculating to obtain initial water pump efficiency according to the initial water pump flow, the initial water pump lift and the initial water pump power;
drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency;
determining a coincidence point of operating efficiency curves of different water pump operating quantities under the same frequency as a switching point threshold value;
and determining the number of switching areas according to the switching point threshold value.
In one embodiment, the switch point threshold comprises a first switch point threshold and a second switch point threshold; the coincidence point of the operating efficiency curves of different water pump operating quantities under the same frequency is determined as a switching point threshold, and the computer program further realizes the following steps when being executed by the processor:
connecting the coincident points to obtain a first boundary line and a second boundary line;
determining coordinate data on the first boundary line as a first switching point threshold;
determining coordinate data on the second demarcation line as a second switching point threshold.
In one embodiment, the number switching regions include a first number switching region, a second number switching region, and a third number switching region; the computer program when executed by the processor further realizes the steps of:
determining a first number of switching regions from the coordinate data less than the first switching point threshold;
determining a second number of switching areas from the coordinate data which are greater than the first switching point threshold and smaller than the second switching point threshold;
and determining the coordinate data which is larger than the second switching point threshold value to be a third number of switching areas.
In one embodiment, the real-time operating parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the computer program when executed by the processor further realizes the steps of:
acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
calculating to obtain the real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency;
and switching the running number of the water pumps to the running number of the water pumps corresponding to the number switching area according to the corresponding number switching area.
In one embodiment, the water pump includes at least one of a chilled water pump and a cooling water pump in an air conditioning apparatus.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and correcting the semi-empirical mathematical model of the water pump.
In one embodiment, the water pump semi-empirical mathematical model comprises first model coefficients, the modifying the water pump semi-empirical mathematical model, the computer program when executed by the processor further implementing the steps of:
acquiring historical operating parameters;
screening the historical operating parameters;
fitting the screened historical operating parameters to obtain a second model coefficient;
and updating the first model coefficient in the water pump semi-empirical mathematical model by using the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
In one embodiment, the computer program when executed by the processor further performs the steps of:
collecting operation parameters of a preset time period;
forming historical operating parameters by using the operating parameters of the preset time period;
and saving the historical operating parameters to a storage device.
In one embodiment, the computer program when executed by the processor further performs the steps of:
fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump;
and extracting the second model coefficient from the new water pump semi-empirical mathematical model.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A method for optimizing and controlling the operation efficiency of a water pump is characterized by comprising the following steps:
acquiring initial operating parameters of a water pump; the initial operation parameters comprise initial water pump flow, initial water pump lift, initial water pump power and initial water pump efficiency;
drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency; connecting coincident points of operating efficiency curves of different water pump operating quantities under the same frequency to obtain a first boundary line and a second boundary line; determining coordinate data on the first boundary line as a first switching point threshold; determining coordinate data on the second boundary line as a second switching point threshold;
determining a plurality of quantity switching regions according to the first switching point threshold value and the second switching point threshold value; wherein each of the number switching regions is associated with a number of water pump operations;
and acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
2. The method of claim 1, wherein the initial operating parameter comprises an initial water pump flow; the acquiring of the initial operating parameters of the water pump comprises the following steps:
acquiring preset water pump flow, preset water pump lift and preset water pump power;
fitting the preset water pump flow, the preset water pump lift and the preset water pump power to obtain a semi-empirical mathematical model of the water pump;
and inputting the initial water pump flow into the water pump semi-empirical mathematical model to obtain an initial water pump lift and initial water pump power.
3. The method of claim 1, wherein the number of switching regions comprises a first number of switching regions, a second number of switching regions, and a third number of switching regions; the determining a number of handover regions according to the handover point threshold includes:
determining a first number of switching regions from the coordinate data less than the first switching point threshold;
determining a second number of switching regions from the coordinate data greater than the first switching point threshold and less than a second switching point threshold;
determining a third number of switching regions from the coordinate data greater than the second switching point threshold.
4. The method of claim 1, wherein the real-time operating parameters include real-time water pump flow, real-time water pump head, and real-time water pump power; the acquiring of the real-time operation parameters of the water pump, and when the real-time operation parameters meet a certain operation quantity switching region, controlling the quantity of the water pump operation to be switched to the water pump operation quantity corresponding to the quantity switching region, includes:
acquiring the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
calculating to obtain real-time water pump efficiency according to the real-time water pump flow, the real-time water pump lift and the real-time water pump power;
identifying quantity switching areas corresponding to the real-time water pump flow, the real-time water pump lift, the real-time water pump power and the real-time water pump efficiency;
and switching the running number of the water pumps to the running number of the water pumps corresponding to the number switching area according to the corresponding number switching area.
5. The method of any one of claims 1 to 4, wherein the water pump comprises at least one of a chilled water pump and a cooling water pump in an air conditioning apparatus.
6. The method of claim 2, wherein the method comprises:
and correcting the semi-empirical mathematical model of the water pump.
7. The method of claim 6, wherein the water pump semi-empirical mathematical model includes first model coefficients, and wherein modifying the water pump semi-empirical mathematical model includes:
acquiring historical operating parameters;
screening the historical operating parameters;
fitting the screened historical operating parameters to obtain a second model coefficient;
and updating the first model coefficient in the water pump semi-empirical mathematical model by using the second model coefficient to obtain the corrected water pump semi-empirical mathematical model.
8. The method of claim 7, wherein prior to obtaining historical operating parameters, further comprising:
collecting operation parameters of a preset time period;
forming historical operating parameters by using the operating parameters of the preset time period;
and saving the historical operating parameters to a storage device.
9. The method of claim 7, wherein fitting the filtered historical operating parameters to obtain second model coefficients comprises:
fitting the screened historical operating parameters to obtain a new semi-empirical mathematical model of the water pump;
and extracting the second model coefficient from the new water pump semi-empirical mathematical model.
10. The utility model provides a water pump operating efficiency optimal control device which characterized in that includes:
the acquisition module is used for acquiring initial operation parameters of the water pump; the initial operation parameters comprise initial water pump flow, initial water pump lift, initial water pump power and initial water pump efficiency;
the determining module is used for drawing a plurality of operating efficiency curves under different frequencies and operating quantities of the water pumps according to the initial water pump flow, the initial water pump lift, the initial water pump power and the initial water pump efficiency; connecting coincident points of operating efficiency curves of different water pump operating quantities under the same frequency to obtain a first boundary line and a second boundary line; determining coordinate data on the first boundary line as a first switching point threshold; determining coordinate data on the second boundary line as a second switching point threshold, and determining a plurality of quantity switching areas according to the first switching point threshold and the second switching point threshold; wherein each of the number switching regions is associated with a number of water pump operations;
and the control module is used for acquiring real-time operation parameters of the water pumps, and controlling the number of the water pumps to be switched to the number of the water pumps corresponding to the number switching area when the real-time operation parameters accord with a certain operation number switching area.
11. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program implements the steps of the method for optimally controlling the operating efficiency of a water pump according to any one of claims 1 to 9.
12. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the water pump operation efficiency optimization control method according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560218.7A CN109595746B (en) | 2018-12-20 | 2018-12-20 | Water pump operation efficiency optimization control method and device and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560218.7A CN109595746B (en) | 2018-12-20 | 2018-12-20 | Water pump operation efficiency optimization control method and device and computer equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595746A CN109595746A (en) | 2019-04-09 |
| CN109595746B true CN109595746B (en) | 2020-01-03 |
Family
ID=65964138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811560218.7A Active CN109595746B (en) | 2018-12-20 | 2018-12-20 | Water pump operation efficiency optimization control method and device and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595746B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160230B (en) * | 2019-05-27 | 2021-12-28 | 上海美控智慧建筑有限公司 | Central air conditioner, air conditioner water system and control method and control device thereof |
| CN110397579A (en) * | 2019-07-08 | 2019-11-01 | 广东美的暖通设备有限公司 | Control method, system and the air-conditioning of the water pump of air-conditioning |
| CN110939560B (en) | 2019-11-04 | 2021-09-14 | 姚福来 | Method for determining electricity-saving optimization operation and switching point of water pump unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3656299B2 (en) * | 1995-12-25 | 2005-06-08 | 松下電工株式会社 | Air conditioning system |
| JP3630283B2 (en) * | 1999-02-08 | 2005-03-16 | 東光電気株式会社 | Number control device for cold / hot water pumps |
| CN106871364B (en) * | 2017-03-09 | 2020-12-04 | 珠海格力电器股份有限公司 | Method for controlling outlet water temperature of cooling tower of central air-conditioning system |
| CN107202398B (en) * | 2017-05-16 | 2019-07-26 | 珠海格力电器股份有限公司 | Central air-conditioning water system control method and device and readable storage medium |
| CN108131281B (en) * | 2017-12-21 | 2024-08-06 | 北京慧鎏科技有限公司 | Water pump control method and device and electronic equipment |
-
2018
- 2018-12-20 CN CN201811560218.7A patent/CN109595746B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109595746A (en) | 2019-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109595747B (en) | Energy consumption simulation method and device of air conditioning system | |
| CN109595746B (en) | Water pump operation efficiency optimization control method and device and computer equipment | |
| WO2021063033A1 (en) | Energy consumption model training method for air conditioner and air conditioning system control method | |
| CN109373525B (en) | Control optimization method and device of air conditioning system, computer equipment and storage medium | |
| CN112150311B (en) | Method, device, computer equipment and storage medium for detecting abnormal energy consumption state | |
| CN108168030B (en) | Intelligent control method based on refrigeration performance curve | |
| CN110868241B (en) | Underground cable fault early warning method and device based on multiple models | |
| CN108594886B (en) | Self-optimization control method and device for refrigeration system based on simulation and operation big data | |
| CN110175778B (en) | Unit energy efficiency planning system | |
| CN107940679A (en) | A kind of group control method based on data center's handpiece Water Chilling Units performance curve | |
| CN105091076B (en) | Energy-saving effect computational methods and device | |
| CN109469966B (en) | Electric heating control method and device for air conditioner compressor | |
| CN103970256B (en) | Energy saving method and system based on memory compaction and CPU dynamic frequency modulation | |
| US20200124308A1 (en) | Operation control device, air conditioning system, operation control method, and computer readable medium | |
| CN115237710A (en) | Server temperature prediction method and device, computer equipment and storage medium | |
| CN110866634A (en) | Underground cable fault early warning method and device based on model selection | |
| CN115345532A (en) | Carbon emission management platform and method for intelligent group control electric heating system | |
| CN109634140B (en) | Method, device, unit and computer equipment for updating running environment data | |
| CN117109158A (en) | Energy efficiency optimization method and device for air conditioning system | |
| CN116379588A (en) | Cold water main machine load distribution optimizing and adjusting method and system thereof | |
| Xue et al. | A novel method of minimizing power consumption for existing chiller plant | |
| CN114427742A (en) | Central air-conditioning cold station energy efficiency control method, device, equipment and storage medium | |
| CN112303811A (en) | Processing method, device and system for air conditioner operation data, air conditioner and storage medium | |
| CN118132244B (en) | Energy-saving regulation and control method, system, equipment and medium thereof for intelligent data center | |
| CN114111108B (en) | Method and related device for evaluating energy supply capacity of medium-water source heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |