CN105765476B - For pumping the 3D of differential pressure and flow without sensor conversion method and equipment - Google Patents
For pumping the 3D of differential pressure and flow without sensor conversion method and equipment Download PDFInfo
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- CN105765476B CN105765476B CN201480065147.7A CN201480065147A CN105765476B CN 105765476 B CN105765476 B CN 105765476B CN 201480065147 A CN201480065147 A CN 201480065147A CN 105765476 B CN105765476 B CN 105765476B
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
Abstract
The present invention provides the equipment for being characterized in that signal processor or processing module, and signal processor or processing module can be configured as and be at least used for: receiving the signaling of the information comprising motor speed and power data about the calibration for liquid circulation pumping system;And it is at least partially based on received signaling and determines system pumping flow rate associated with equivalent liquid circulatory system characteristic variable and pressure.Signal processor or processing module, which can be configured as, provides the corresponding signaling comprising the information about determining system pumping flow rate and pressure.Corresponding signaling may include the information for controlling liquid circulation pumping system.
Description
Cross reference to related applications
This PCT application requires the equity for 14/091,795 patent of Serial No. submitted on November 27th, 2013, this is specially
Benefit require to submit on March 1st, 2013 application No. is the equity of 61/771,375 SProvisional Patent, both is drawn by whole
With being incorporated herein.
The application further relates to apply as follows:
Entitled " the Method and apparatus for pump control submitted on December 30th, 2010
using varying equivalent system characteristic curve,AKA an adaptive control
The U. S. application of curve " Serial No. 12/982,289 (Atty Dckt the 911-019.001.1//F-B&G-1001st).
Entitled " the Dynamic linear control methods and submitted on December 17th, 2012
13/717,086 (Atty Dckt 911- of apparatus for variable speed pump control " Serial No.
019.004.2//F-B&G-X0001 U. S. application number), it is required that submitted on December 16th, 2011 application No. is 61/
The equity of 576,737 U.S. Provisional Applications being abandoned now;
Entitled " the Mixed theoretical and discrete sensorless submitted on March 19th, 2013
Converter for pump differential pressure and flow monitoring " application No. is 61/803,
The U.S. Provisional Application of 258 (Atty Dckt the 911-019.0010.1//F-B&G-X0007th);
Entitled " the Sensorless adaptive pump control with submitted on July 25th, 2013
Application No. is 61/858,237 by self-calibration apparatus for hydronic pumping system "
The U.S. Provisional Application of (Atty Dckt the 911-019.012.1//F-B&G-X0010USth);
These are all assigned to the assignee of present patent application, and they are incorporated to by arranging reference.
The application establishes in the group of the technology disclosed in aforementioned related application.
Technical field
The present invention relates to it is a kind of for control pump operation technology;More particularly it relates to a kind of for controlling
The method and apparatus that the pump of water system is for example heated or cooled in system for family and business.
Background technique
By example, Fig. 1 (a) shows two stage speed change pump control liquid circulation (hydronic) known in the art and adds
Hot and cold but system, Fig. 1 (b) show in the prior art it is also known that water boosting pumping system.Recently, about in this pump
The problem of sending the energy saving in system and protection environment is solved significantly.More and more concerns are placed in liquid
Circulating pump control application, including for family and business heating and the pump such as cooling water pump or the circulatory system, water boosting pumping system
Control, as shown in Fig. 1 (a) and 1 (b) those, substantially may be dynamically and unknown feature with it.In order to subtract
Few energy consumption and operating cost, it has been proposed that some known self-adaptation control methods.
In addition, U.S. Patent application (the Atty of the aforementioned Serial No. 12/982,286 submitted on December 30th, 2010
Dckt the 911-019.001.1//F-B&G-1001st) it discloses for hydronic and cooling pumping system and needle
It is consistent with being schematically shown in Fig. 1 (a) and Fig. 1 (b) to the auto-adaptive control scheme of water boosting pumping system.In Fig. 1
(b) in, liquid circulation pumping system includes controller and pump, and pump is arranged to and has configuration in the processing of check-valves wherein
Pipe is related.In operation, pump responds the control signaling from controller, and pumps fluid and pass through processing pipe.Fig. 1
(c) it shows with the curve graph with various functions drawn using known system curve equation, system curve equation is for example
Including pump curve, on-demand system curve, constant control curve, equivalent system curve (as designed), self adaptive control curve
With distribution loss curve.Pressure set-point P* about desired flow rate Q* can pass through equationIt calculates and/or determines, wherein self adaptive control curveFluid can be passed through
Equations of motion obtains together with moving average filter.By the adaptive approach, for obtaining the self-adaptive controlled of pressure set-point
Koji-making line is shown consistent closer to the equivalent system curve for the minimum pressure for indicating flow rate needed for needing to keep with Fig. 1 (c).
Due to this, pumping system operating energy can be conserved by using the adaptive approach.
In addition, for the technology without sensor pump conversion for obtaining system pressure and flow based on motor read output signal is used
It is well known in the art.However, the known no sensor model that presents at present or in the space 1D or in 2D discrete space
Formula expression, this to obtain motor pressure and stream from motor speed and power for algorithm development and signal conversion accuracy
Rate is difficult.
Some known methods can be used for no sensor conversion, including the use of the pump and system liquid together with numerical scheme
Body circulation data and the discrete model being calibrated.This discrete no Sensor Model method is simply direct.Conversion accuracy can be with
It is maintained at well less than in 5-10% error boundary.On the other hand, the reason based on pump and system features equation that there is also some
By method simply and readily to pump control application for some, wherein not requiring the accurate flow controlled for pump and pressure
Power and do not provide calibration sensor.As compromise, flow and pressure conversion accuracy may be down to the errors for being greater than 10-15%
Boundary.However, flow and pressure conversion accuracy may be deteriorated very fast with low speed.
Summary of the invention
In short, the present invention provides a kind of developed to obtain needle about based on the motor signal of pump and motor calibration data
The 3D of flow system flow and pressure to dynamic liquid circulation pumping system is without sensor device and converter.System pressure and flow
It can directly be solved in three-dimensional space formula from any pair of motor read output signal (speed, electric current, torque, power etc.)
Out.
By example, and according to some embodiments, the present invention can be using the shape of the equipment of such as pump controller etc
Formula, it is characterized in that signal processor, signal processor is configured as at least:
Receive the letter of the information comprising motor speed and power data about the calibration for liquid circulation pumping system
It enables, and
It is at least partially based on received signaling, using three-dimensional without sensor model or algorithm determination and equivalent liquid cyclic system
The associated system pumping flow rate of characteristic variable of uniting and pressure.
The embodiment of the present invention can also include one or more following characteristics:
Signal processor can be configured as offer comprising about with determining equivalent liquid circulatory system characteristic variable phase
The corresponding signal of the information of associated system pumping flow rate and pressure.
Corresponding signaling may include the information for controlling liquid circulation pumping system.
Signal processor or processing module can be configured as the motor speed and function for being at least partially based on processing and calibration
The relevant signal of rate data determines system pumping flow rate and pressure without sensor model or algorithm using three-dimensional.
Signal processor or processing module, which can be configured as, to be at least partially based on processing and pumps system in liquid circulation
In from pump or drive the relevant signaling of power transformational relation to the liquid circulation of motor, mechanically and electrically parameter and implement three
Dimension is without sensor model or algorithm.
Signal processor or processing module can be configured as can some combinations at least in following steps implement three
Dimension is without sensor model or algorithm:
Handle signaling related with equation 1:
γ(P,Q,W,n,Cv)=0 (1)
Wherein γ indicate from pump driven to motor liquid circulation, mechanically and electrically power transformational relation;
Handle, decouple and remap signaling relevant to the energy transfer function of previous equations (1), use equation (1) with
Carry out explicit formula about motor speed and equivalent system feature and expresses corresponding system flow rate, system pressure or System level gray correlation dynamic pressure
The function of power, motor power;
It handles and is expressed and is solved to be generated and unknown system feature phase under given motor speed and power
The signaling of the reconstruction 3D functional dependence of associated pumping flow rate and pressure;
It handles and by the expression of equation 2.1,2.2 and 2.3 about motor power and the motor power of speed, pump flow rate and pump
The corresponding 3D of differential pressure rebuilds the relevant signaling of partition function, and equation 2.1,2.2,2.3 is as follows:
w(W,n,CV)=0 (2.1),
g(Q,n,CV)=0 (2.2) and
P (P, n, CV)=0 (2.3),
Wherein, w, g and p are motor power W, system flow rate Q and pump differential pressure P about motor speed n and equivalent system
Characteristic variable CVFunction;
Processing and flow system flow, the pump differential pressure about the motor speed and equivalent system feature that are obtained from pumping system
Signaling relevant with the partition function remapped with the discrete decoupling of the 3D of motor power;
For it is a pair of in sight when time given W and n motor reading handle and obtain with it is unknown etc. in previous equations 2.1
Valence system features variable CVRelevant signaling;
It handles and obtains signaling relevant to pump differential pressure P and flow rate Q directly from equation 3.1 and 3.2, equation
3.1,3.2 is as follows:
And
WhereinIt is that the inverse of w remaps power function;
Directly to be directed to fluid circulation system CVMotor power W and motor speed n it is given to handling and obtain and pump
Differential pressure P and the relevant signal of flow rate Q.
Equipment can further include at least one processor including computer program code;At least one described storage
Device and computer program code are configured as that equipment is made at least to execute following operation by least one processor:
Receive signaling;And
It is at least partially based on received signaling, is determined using three-dimensional without sensor model or algorithm and is recycled with equivalent liquid
The associated system of system features variable pumps flow rate.
Equipment may include pumping control or controller or using pump control or the form of controller, pumping control or controller packet
PID control is included, with signal processor or signal processor module.
According to some embodiments, the present invention can use the form of method, and method includes for connecing in signal processor
Packet receiving contains the signaling of the information of the motor speed and power data about the calibration for liquid circulation pumping system, and at least
It is based partially on received signaling, the determining and equivalent liquid in signal processor recycles without sensor model or algorithm using three-dimensional
The associated pumping flow rate of system features variable and pressure.
The present invention can also have computer-readable for example, by using the form of computer program product, computer program product
Medium, computer-readable medium have the computer-executable code that is embedded for for example when operating in form this pump
Method is executed when on the signal processing apparatus of the part of controller.By way of example, computer program product can be such as
Using CD, floppy disk, memory stick, memory card form and it is currently known or in the future further develop can by computer
Execute instruction the storage device of the other types or type that are stored on this computer-readable medium.
Detailed description of the invention
Attached drawing include it is illustrated below, be not necessarily drawn to scale;
Fig. 1 includes Fig. 1 a, Fig. 1 b and Fig. 1 c, wherein Fig. 1 a is two stage speed change pump control liquid well known in the prior art
The view of circulating-heating or cooling system;Fig. 1 b is the view of water boosting pumping system well known in the prior art;And Fig. 1 c
Be with the prior art it is consistent, with for based on wherein in flow rate Q*Liquid circulation power=dP*Q of lower saving*It is self-adaptive controlled
Koji-making line executes the curve graph (GPM) of the relevant flow of foot head pressure of adaptive control technology.
Fig. 2 is according to some embodiments of the present invention with the signal processor for being configured as implementation signal processing function
Equipment block diagram.
Fig. 3 is the system pressure and flow rate and motor electrical power for the liquid circulation pumping system as shown in Figure 1b
With the model of the conversion of speed.
Fig. 4 is curve graph of the flow rate Q (gpm) to pressure P (Ft or psi), is had at equalization point bent with system features
Pump differential pressure curve under the given speed of line balance.
Fig. 5 includes Fig. 5 a, Fig. 5 b, Fig. 5 c, is shown respectively about the system flow rate of motor speed and equivalent system feature, pump
The 3D discrete distribution function of differential pressure, motor power.
Fig. 6 is curve graph of the flow rate (gpm) to differential pressure (psi), is shown about the (empty from converter of motor speed
Line) and sensor (solid line) pump differential pressure and flow rate reading comparison.
Specific embodiment
The discrete no sensor conversion of 3D
The present invention provides the discrete no sensor conversion equipment of a kind of new and unique 3D or technology, is developed to obtain
Obtain the flow system flow and pressure for dynamic liquid circulation pumping system about the motor signal based on pump and motor calibration data
Power.System pressure and flow can be direct by any pair of motor read output signal (speed, electric current, torque, power etc.)
And it more accurately solves.
By example, Fig. 2 shows the equipment for as a whole being referred to generally at 10 according to some embodiments of the present invention comprising with
The signal processor or signal processing module 12 that other signals processor circuit and element 14 combine.Signal processor 12 can be by
It is configured to implement signal processing function according to some embodiments of the present invention.
In operation, signal processor 12 can be configured as at least:
Receive the letter of the information comprising motor speed and power data about the calibration for liquid circulation pumping system
It enables;And
It is at least partially based on received signaling, is determined using three-dimensional without sensor model or algorithm and is recycled with equivalent liquid
The associated system pumping flow rate of system features variable and pressure.
By example, signaling can be received from the database of the storage for the part for for example forming memory module.The horse of calibration
It can be received from particular motor and from as in Fig. 1 b for example, by being handled during field test up to speed and power data
Shown in the received associated signaling of centrifugal pump to be controlled and be determined.Optionally, the motor speed and power of calibration
Data can be by handling from the representative for example in a series of or one group of pump tested by the producer of factory or manufactory
Property motor in received coherent signal and form the institute that is for example stored in the memory module in motor, pump or pump controller
The part of the motor of purchase is merged into the motor.The scope of the present invention is not intended to be limiting the motor speed for how determining calibration
With the motor speed and power data of power data or calibration whether specific to given motor or one group or a series of motors etc..
Signal processor 12 can be additionally configured to provide the information comprising about determining system pumping flow rate and pressure
Corresponding signal, for example, to control shown in one or more Fig. 1 a centrifugal pump shown in pump or Fig. 1 b.
By further example, equipment 10 can be controlled using shown in pump controller shown in Fig. 1 a or Fig. 1 b
The form of device, or form the part of controller shown in pump controller shown in Fig. 1 a or Fig. 1 b.The scope of the present invention purport
It is including one or more elements of the pumping system of liquid circulation shown in such as Fig. 1 a and Fig. 1 b, and embodiment is contemplated
The form of one or more elements of system is pumped using liquid circulation shown in such as Fig. 1 a and Fig. 1 b for equipment 10.
Signal processor or processing module, which can be configured as, at least to be implemented based on following elaboration for implementing the present invention
(such as with shown in Figure 2 consistent) three-dimensional without sensor module or algorithm and relative signal processing:
Fig. 3 is shown schematically in system pressure or pumps the model of the energy conversion between differential pressure and flow rate P and Q,
The equivalent liquid circulatory system characteristic variable Cv of flow rate P and Q and the discharge part in the pump and motor located drives at any time
The motor power W and speed n of dynamic the other end are associated.
Fig. 4 shows pump and system liquid cycle characteristics about motor speed and power W, schematically shows given
Pump differential pressure curve under speed and the power at equalization point with system performance curve intersection or balance.Corresponding mathematical table
It can be as following equation 1 be presented up to formula:
γ(P,Q,W,n,Cv)=0 (1)
Wherein γ indicate from the liquid circulation that pump drive to motor, mechanically and electrically power transformational relation, it is essential
On may be to a certain degree it is complicated because motor and the efficiency of pump are about motor speed, system pressure and flow rate variation.
According to some embodiments of the present invention, by decoupling and remapping the distribution side 3D of the energy transfer function of equation 1
Formula can be used with about motor speed and equivalent system feature explicit formula express corresponding system flow rate, system pressure or
Pump the function of differential pressure, motor power.Then the reconstruction 3D function of expression can be solved to be based at least partially on measurement
Pump and motor calibration data to generate pump associated with any unknown system feature under given motor speed and power
Flow rate and pressure.About motor power and the motor power of speed, pump flow rate and the corresponding 3D reconstruction point for pumping differential pressure
It can correspondingly be indicated by equation 2.1,2.2 and 2.3 with function, as follows:
w(W,n,CV)=0 (2.1),
g(Q,n,CV)=0 (2.2) and
P (P, n, CV)=0 (2.3),
Wherein, w, g and p are motor power W, system flow rate Q and pump differential pressure P about motor speed n and equivalent system
Characteristic variable CVFunction.Flow system flow, pump differential pressure, motor power are about the motor speed obtained from practical pumping system
With the discrete decoupling of the 3D of equivalent system feature and remap partition function and shown in the 3D distribution function of Fig. 5 respectively.
W the and n motor that the time gives when in sight for a pair is read, the unknown equivalent system characteristic variable in equation 2.1
Cv can be obtained numerically.Then pump differential pressure P and flow rate Q can be obtained directly from following equation 3.1 and 3.2:
And
WhereinIt is that the inverse of w remaps power function.Then the motor function for fluid circulation system Cv can directly be passed through
Rate W and motor speed n obtains pump differential pressure P and flow rate Q.
Converting for pump differential pressure and the 3D of flow rate without sensor according to some embodiments of the present invention has been opened
It sends out and is tested in the closed loop liquid circulatory system.It is shown in Fig. 6 correspondingly about the (empty from converter of motor speed
Line) and sensor (solid line) correspondingly draw pump differential pressure and flow rate reading comparison.
Pass through instrument calibration
Pump differential pressure data in equation 3 can be used for closed-loop system, because passing through all energy of system consumption
Amount is lost from only system dynamic friction relevant to pump differential pressure.By example, differential pressure transducer or pressure sensing
Device can be used to collect pumping system calibration data together with flow sensor.
For the open cycle system with static swabbing pressure, the system pressure data calibrated on the spot can be adopted directly
With.For the open cycle system of modified swabbing pressure, the pressure sensor in pump suction side or the differential pressure at pump
Sensor can be used to calibrate by swabbing pressure caused by pressure and flow rate.
Equipment 10
By example, the function of equipment 10 can be used hardware, software, firmware or combinations thereof and implement.Typical soft
During part is implemented, equipment 10 may include one or more frameworks based on microprocessor, have for example, at least one similar letter
The element 12 of number processor or microprocessor.Those skilled in the art will be based in the case where limited trials to this
The implementation of microcontroller (or microprocessor) is programmed to execute function described herein.Purport is not defined the scope of the present invention
In the specific implementation using currently known or Future Development technology.The scope of the present invention is intended to include processor 12
Function is embodied as independent processor or processor module, separated processor or processor module and some combinations.
Equipment can also include other signal processing circuits or element 14, and the arbitrary access for example including similar component 14 is deposited
Reservoir (RAM) and/or read-only memory (ROM), input/output device and control, and be connected to its data and address it is total
Line and/or at least one input processor and at least one output processor.
Possible additional application/embodiment
Envisioned embodiment according to the present invention, and the scope of the present invention be intended to include for example, by using for pump differential pressure and
The equipment of form of the 3D of flow without sensor conversion equipment and equipment, including one of the following or multiple:
3D numerical value without transducer translating unit, for example, its be based on pump and motor calibration data generate and about motor speed and
The associated system flow rate of the unknown system of power sense signal and pump differential pressure.System pressure and flow can be solved directly
Out, and more precisely, it is solved according to any pair of motor read output signal of speed, electric current, torque, power etc.
Out.
Multiple correlation 3D functions, as it is indicating in figure 2 and figure 3 and in Fig. 5 shown in such as motor power, pump it is poor
Dynamic pressure and flow rate.
Any or all potential 3D discrete digital replay shooting method, such as 2D difference, 2D spline curve etc..
Any or all potential 2D or 3D are discrete or numerical value inverse calculation, such as the direct inverse operation of such as 1D or 2D, most
Smallization, simple form etc..
Any or all closed loop or open loop liquid circulation pump system, for example, such as main pumping system, second level pumping system,
Water circulation system and pressure charging system.System described herein may include single region or multiple regions.
About calibration of pump data, such as the pump differential pressure and flow rate of the closed loop liquid circulatory system in this equipment
Data, it is only related with pump differential pressure because all energy by system consumption lose from system dynamic friction.Calibrate number
According to may include system pressure data or pump discharge part pressure and corresponding flow rate.
About calibration of pump data, such as the open loop fluid circulation system in this equipment, about respective motors data
Pump differential pressure or system pressure and flow rate.For the open cycle system with static swabbing pressure, system pressure data and stream
Rate can be directly obtained on the spot.However, for the open cycle system with variation swabbing pressure, in a pressure of pump suction side
Sensor or the differential pressure transducer at pump can be used to calibrate the pressure as caused by swabbing pressure and flow rate.
About the motor data, such as motor speed, electric current, torque, power of measurement for being directed to this equipment etc.
It is any that potential motor, electrically or mechanically read output signal can be included.
About the liquid circulation signal of this equipment, for example, system pressure, pump differential pressure, areal pressure, system flow rate,
Region flow rate etc. can be included.
About the control signal of transmission and wiring technique, such as currently used all traditional sensings and transmitting device.
Preferably, wireless sensor signal transmission technology will be optimization and it is advantageous.
About the aforementioned pump for liquid circulation pumping system, such as single-stage pump, circulator, one group of parallel sleeve pump or circulation
Device, one group of series connection set pump or circulator or their combination can be included.
It is adjusted about flow system flow, such as manually or automatically control valve, manually or automatically control loop device or their group
Closing to be included.
The scope of the present invention
It should be understood that unless here in addition statement, it is no herein in relation to specific embodiment description arbitrary characteristics, characteristic, can
It selects example or modification and can also apply with any other embodiments described herein, use or merge.Also, attached drawing here is not
It is drawn to scale.
Although the present invention is described by the example about centrifugal pump, the scope of the present invention is intended to include using pass
In currently known or in the future by any type of exploitation or the pump of type.
Although the present invention is described and shown about its exemplary embodiment, spirit of the invention is not being departed from
With can wherein be carried out in the case where range and it be carried out aforementioned and various other additional and omit.
Claims (23)
1. a kind of equipment for controlling pump, comprising:
Signal processor or processing module are configured as at least:
It receives comprising the motor speed and power number about the calibration for one or more pumps in liquid circulation pumping system
According to information signaling;And
By using the received signaling of institute and three-dimensional without sensor model or algorithm, based on pump differential pressure, system flow rate
Equivalent liquid circulatory system characteristic variable C with motor power about motor speed and at least one on-demand system curveVThree
Discrete partition function is tieed up, and determines system pumping flow rate and pressure, includes for controlling liquid circulation pumping system to provide
The correspondence signaling of the information of one or more of pumps in system;
The signal processor or processing module are configured as being at least partially based on processing signaling relevant to equation 1 to implement
Three-dimensional is stated without sensor model or algorithm, equation 1 is as follows:
γ(P,Q,W,n,Cv)=0 (1)
Wherein γ indicate from pump drive to motor liquid circulation, mechanically and electrically the power transformational relation, for pump
The equivalent system characteristic variable C of differential pressure P, system flow rate Q, motor power W, motor speed n and instant-curveVFunction.
2. equipment according to claim 1, wherein it is described right that the signal processor or processing module are configured to supply
Answer signaling as control signaling.
3. equipment according to claim 1, wherein the signal processor or processing module are configured as at least partly base
In handling relevant to the motor speed of the calibration and power data signaling, using the three-dimensional without sensor model or
Algorithm determines system pumping flow rate and pressure.
4. equipment according to claim 3, wherein the signal processor or processing module are configured as at least partly base
In processing and the liquid circulation pumping system from pump to motor or the liquid circulation of driving, the mechanically and electrically function parameter
The relevant signaling of rate transformational relation is described three-dimensional without sensor model or algorithm to implement.
5. equipment according to claim 1, wherein at least one described equivalent liquid circulatory system characteristic variable includes needle
To the equivalent liquid circulatory system characteristic variable of the flow rate Q of liquid circulation pumping system.
6. equipment according to claim 1, wherein at least one described equivalent liquid circulatory system characteristic variable includes needle
To the equivalent liquid circulatory system characteristic variable of the pumping pressure P of liquid circulation pumping system.
7. equipment according to claim 2, wherein the signal processor or processing module are configured as:
The three-dimensional is determined without sensor model or algorithm based on equation 2.1,2.2 and 2.3, and equation 2.1,2.2,2.3 is as follows:
w(W,n,CV)=0 (2.1),
g(Q,n,CV)=0 (2.2)
P (P, n, CV)=0 (2.3), and
For it is a pair of in sight when the time calibration motor speed and power data, based on being defined as w (W, n, CvThe motor of)=0
Power function determines unknown fluid circulation system characteristic variable CV;And
Using based on the equation 3.1 and 3.2 for system flow rate and pump differential pressure, the system pumping flow rate and pressure are determined
Power, equation 3.1 and 3.2 are defined as:
And
Wherein, w, g and p are motor power W, system flow rate Q and the pump differential pressure P about the motor speed n and equivalence
System features variable CVThree-dimensional function, and whereinIt is that the inverse of w remaps power function.
8. equipment according to claim 2, wherein
The equipment includes two stage speed change pump control hydronic or cooling system, and the two stage speed change pump control liquid follows
System is heated or cooled in ring, and there is arrangement to handle the one or more of pumps for being coupled to heater and cooler in pipe;And
And
One or more of pumps are configured to respond to the control signaling and the pump flow to the heater and cooler
Body, to operate the two stage speed change pump control hydronic and cooling system.
9. equipment according to claim 2, wherein the equipment includes water boosting pumping system, the water pressurization pumping system
Uniting has the one or more of pumps being arranged in processing pipe;And
One or more of pumps are configured to respond to the control signaling and pump fluid stream in the processing is managed to grasp
Make the water boosting pumping system.
10. equipment according to claim 2, wherein the equipment includes the liquid circulation pumping system, the liquid
Circulation pumping system has the one or more of pumps being arranged in processing pipe;And
One or more of pumps are configured to respond to the control signaling and pump fluid stream in the processing is managed to grasp
Make the liquid circulation pumping system.
11. equipment according to claim 4, wherein the signal processor or processing module are configured as at least partly
Based on processing, decouples and remap signaling relevant to the energy transfer function of equation 1 to implement the three-dimensional without sensor die
Type or algorithm use equation 1 to express with explicit formula about the corresponding system flow rate of motor speed and equivalent system feature, be
The function of pressure of uniting or system differential pressure, motor power.
12. equipment according to claim 11, wherein the signal processor or processing module are configured as at least partly
Based on processing be expressed and be solved under given motor speed and power generation it is associated with unknown system feature
Pumping flow rate and pressure reconstruction 3D functional dependence signaling come implement it is described three-dimensional without sensor model or algorithm.
13. equipment according to claim 12, wherein the signal processor or processing module are configured as at least partly
Indicate differential about motor power and the motor power of speed, pump flow rate and pump with by equation 2.1,2.2 and 2.3 based on processing
It is described three-dimensional without sensor model or algorithm to implement that the corresponding 3D of pressure rebuilds the relevant signaling of partition function, equation 2.1,
2.2,2.3 is as follows:
w(W,n,CV)=0 (2.1),
g(Q,n,CV)=0 (2.2)
P (P, n, CV)=0 (2.3), and
Wherein, w, g and p are motor power W, system flow rate Q and pump differential pressure P about motor speed n and equivalent system feature
Variable CVFunction.
14. equipment according to claim 13, wherein the signal processor or processing module are configured as at least partly
Based on processing and flow system flow, pump differential pressure and the horse about the motor speed and equivalent system feature that are obtained from pumping system
Implement the three-dimensional without sensor model or algorithm up to the discrete decoupling of the 3D signaling relevant with partition function is remapped of power.
15. equipment according to claim 14, wherein the signal processor or processing module are configured as at least partly
W the and n motor that the time gives when based on for a pair shortly reads the unknown equivalent system spy for handling and obtaining and in equation 2.1
Levy variable CVRelevant signaling is described three-dimensional without sensor model or algorithm to implement.
16. equipment according to claim 15, wherein the signal processor or processing module are configured as at least partly
It is described to implement based on handling and obtaining signaling relevant to pump differential pressure P and flow rate Q directly from equation 3.1 and 3.2
For three-dimensional without sensor model or algorithm, equation 3.1,3.2 is as follows:
And
WhereinIt is that the inverse of w remaps power function.
17. equipment according to claim 16, wherein the signal processor or processing module are configured as at least partly
Based on directly to be directed to fluid circulation system CVGiven couple of motor power W and motor speed n handle and obtains differential with pump
Pressure P and the relevant signaling of flow rate Q are described three-dimensional without sensor model or algorithm to implement.
18. equipment according to claim 15, wherein the equipment includes liquid circulation pumping system, the liquid circulation
Pumping system has controller, and the controller, which has, is configured in the signal processor therein or processing module.
19. a kind of liquid circulation pumps system, comprising:
One or more pump is disposed in processing pipe;And
Controller has signal processor or processing module, and the controller is configured as at least:
Receive the signaling of the information comprising motor speed and power data about the calibration for one or more of pumps;
By using the received signaling of institute and three-dimensional without sensor model or algorithm, based on pump differential pressure, system flow rate
Equivalent liquid circulatory system characteristic variable C with motor power about motor speed and at least one on-demand system curveVThree
Discrete partition function is tieed up, and determines system pumping flow rate and pressure, includes for controlling one or more of pumps to provide
The controller signaling of information;
The signal processor or processing module are configured as being at least partially based on processing signaling relevant to equation 1 to implement
Three-dimensional is stated without sensor model or algorithm, equation 1 is as follows:
γ(P,Q,W,n,Cv)=0 (1)
Wherein γ indicate from pump drive to motor liquid circulation, mechanically and electrically the power transformational relation, for pump
The equivalent system characteristic variable C of differential pressure P, system flow rate Q, motor power W, motor speed n and instant-curveVFunction.
20. liquid circulation according to claim 19 pumps system, wherein the signal processor or processing module are matched
It is set to based on equation 2.1,2.2 and 2.3 and determines three-dimensional without sensor model or algorithm, equation 2.1,2.2 and 2.3 as follows:
w(W,n,CV)=0 (2.1),
g(Q,n,CV)=0 (2.2)
P (P, n, CV)=0 (2.3), and
For it is a pair of in sight when the time calibration motor speed and power data, based on being defined as w (W, n, CvThe power of)=0
Function determines unknown fluid circulation system characteristic variable CV;And
Using the equation 3.1 and 3.2 based on system flow rate and pump differential pressure, the system pumping flow rate and pressure are determined, etc.
Formula 3.1 and 3.2 is defined as:
And
Wherein, w, g and p are motor power W, system flow rate Q and pump differential pressure P about motor speed n and equivalent system feature
VariableC VFunction, and whereinIt is that the inverse of w remaps power function.
21. liquid circulation according to claim 19 pumps system, wherein at least one described equivalent liquid circulatory system
Characteristic variable includes the equivalent liquid circulatory system feature for the flow rate Q and pumping pressure P of liquid circulation pumping system
Variable.
22. liquid circulation according to claim 19 pumps system, wherein it includes second level that the liquid circulation pump, which send system,
Speed-variable pump controls hydronic or cooling system, and the two stage speed change pump control hydronic or cooling system have
The one or more of pumps for being coupled to the heater and cooler in arrangement processing pipe;And
It is one or more of pump be configured to respond to the control signaling and by the processing pipe to the heater with
The pumping fluid of cooler, to operate the two stage speed change pump control hydronic and cooling system.
23. liquid circulation according to claim 19 pumps system, wherein it includes that water increases that the liquid circulation pump, which send system,
Pumping system is pressed, the water boosting pumping system includes the one or more of pumps being arranged in processing pipe;And
One or more of pumps are configured to respond to control signaling and pumping fluid increases in processing is managed to operate the water
Press pumping system.
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US14/091,795 US10119545B2 (en) | 2013-03-01 | 2013-11-27 | 3-D sensorless conversion method and apparatus for pump differential pressure and flow |
US14/091,795 | 2013-11-27 | ||
PCT/US2014/023267 WO2015080757A1 (en) | 2013-03-01 | 2014-03-11 | 3d sensorless conversion method and apparatus for pump differential pressure and flow |
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WO2018049369A1 (en) * | 2016-09-12 | 2018-03-15 | Fluid Handling Llc | Automatic self-driving pumps |
CN113614380A (en) * | 2018-11-08 | 2021-11-05 | 森西亚荷兰有限公司 | Electric submersible pump control |
CN112196856B (en) * | 2020-10-28 | 2022-07-12 | 山推工程机械股份有限公司 | Hydraulic system of electric transmission equipment and control method thereof |
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US20040062658A1 (en) * | 2002-09-27 | 2004-04-01 | Beck Thomas L. | Control system for progressing cavity pumps |
US7845913B2 (en) * | 2004-08-26 | 2010-12-07 | Pentair Water Pool And Spa, Inc. | Flow control |
US20080176503A1 (en) * | 2005-05-03 | 2008-07-24 | Daniel Stanimirovic | Fully articulated and comprehensive air and fluid distribution, metering, and control method and apparatus for primary movers, heat exchangers, and terminal flow devices |
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US7945411B2 (en) * | 2006-03-08 | 2011-05-17 | Itt Manufacturing Enterprises, Inc | Method for determining pump flow without the use of traditional sensors |
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US8700221B2 (en) * | 2010-12-30 | 2014-04-15 | Fluid Handling Llc | Method and apparatus for pump control using varying equivalent system characteristic curve, AKA an adaptive control curve |
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