CN107294462A - A kind of oil pumper progress control method that fuel-flow control is taken out based on maximum - Google Patents
A kind of oil pumper progress control method that fuel-flow control is taken out based on maximum Download PDFInfo
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- CN107294462A CN107294462A CN201710538498.0A CN201710538498A CN107294462A CN 107294462 A CN107294462 A CN 107294462A CN 201710538498 A CN201710538498 A CN 201710538498A CN 107294462 A CN107294462 A CN 107294462A
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- oil
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005086 pumping Methods 0.000 claims abstract description 104
- 230000008859 change Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 3
- 238000009790 rate-determining step (RDS) Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 101
- 239000010721 machine oil Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/08—Reluctance motors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
A kind of oil pumper progress control method that fuel-flow control is taken out based on maximum, belongs to vertical oil-pumping machine oil pumping amount control technology field.Including one group of control system for oil-pumping unit, it is characterised in that：Comprise the following steps：Step 1, operational factor is set；Step 2, motor drives oil pumper action；Step 3, generate and be superimposed rotating speed disturbance quantity；Step 4, oil pumping amount is obtained；Step 5, oil pumping amount, which reduces, performs step 6, otherwise performs step 7；Step 6, direction and the loading of rotating speed disturbance quantity are changed；Step 7, oil pumping amount increase performs step 8, otherwise performs step 9；Step 8, the disturbance quantity that increases speed simultaneously is loaded；Step 9, reduce rotating speed disturbance quantity and load；Step 10, rotating speed disturbance quantity is zero execution step 11, otherwise performs step 4.Step 11, terminate.In this control method, optimized rotating speed is found by way of motor speed is disturbed, maximum oil pumping amount, strong adaptability is kept.
Description
Technical field
A kind of oil pumper progress control method that fuel-flow control is taken out based on maximum, is belonged to vertical oil-pumping machine and takes out fuel-flow control skill
Art field.
Background technology
At present, oil-field oil pumper is broadly divided into beam pumping unit and the major class of vertical oil-pumping machine two, and wherein beam type is pumped
Machine typically uses asynchronous machine, and rotating speed is relatively fixed, and motor can only a direction operation, beam pumping unit passes through machinery dress
Replace to realizing pumping for sucker rod；And vertical oil-pumping machine typically uses variable speed electric motors, particularly, motor speed can be adjusted
And traffic direction, the adjustment of oil extractor operating parameter is realized, and mechanical commutation device need not be used, in recent years vertical oil pumping
Machine is gradually promoted.
Thickness, dilute thick difference due to oilbearing stratum, therefore in the prior art, in order to ensure optimal oil pumping amount, typically
Need to realize by the stroke jig frequency parameter for adjusting oil pumper, stroke can be real by adjusting the unidirectional range ability of motor
Existing, jig frequency can be by adjusting motor operation velocity interpolation.The vertical oil-pumping machine that developed recently gets up typically uses variable speed electric motors, particularly,
The distance and motor speed of the same traffic direction of motor can be adjusted at any time, and then adjust the stroke of oil pumper, jig frequency.
In general, the adjustment frequency of stroke is relatively low, it is relatively fixed.When the frequent change of oilbearing stratum, mostly
Realization is adjusted by jig frequency and takes out fuel-flow control, the jig frequency adjustment of current vertical oil-pumping machine sets motor speed mainly by artificial experience
Realize, motor speed it is too high or it is too low can not all realize the output of optimal oil pumping amount, when oil reservoir state change, manually adjust
Often it is difficult to the adjustment that adjustment motor speed in real time realizes beam-pumping unit jig frequency, system is difficult to be worked under optimized rotating speed, it is impossible to protected
Card oil pumper exports maximum oil pumping amount all the time.
The content of the invention
The technical problem to be solved in the present invention is：The deficiencies in the prior art are overcome to be disturbed there is provided one kind by motor speed
Mode find optimized rotating speed, to keep maximum oil pumping amount, to the control of oil pumping amount not with oil pumper mechanical parameter, oil reservoir
State etc. changes and changed, and applicability is stronger based on the maximum oil pumper progress control method for taking out fuel-flow control.
The technical solution adopted for the present invention to solve the technical problems is：This is based on the maximum oil pumper fortune for taking out fuel-flow control
Row control method, including one group of control system for oil-pumping unit, control system for oil-pumping unit include oil pumper, the drive of driving oil pumper work
Dynamic motor and the electric machine controller of control motor work, it is characterised in that：Including following rate-determining steps：
Step 1001, the operational factor of motor is set；
Step 1002, motor works according to presetting operational factor and drives oil pumper to act；
Step 1003, electric machine controller generates a rotating speed disturbance quantity at random, and rotating speed disturbance quantity is superimposed upon into motor
On the basis of current rotating speed；
Step 1004, real-time oil pumping amount of the oil pumper after rotating speed disturbance quantity has been superimposed is obtained；
Step 1005, electric machine controller is judged after rotating speed disturbance quantity has been superimposed, and whether the oil pumping amount of oil pumper reduces, if
Oil pumping amount reduces, and performs step 1006, if the oil pumping amount of oil pumper does not reduce, performs step 1007；
Step 1006, change the direction of rotating speed disturbance quantity and be loaded on the current rotating speed of motor and return to step 1004；
Step 1007, electric machine controller is judged after rotating speed disturbance quantity has been superimposed, and whether the oil pumping amount of oil pumper increases, if
Oil pumping amount increases, and performs step 1008, if the oil pumping amount of oil pumper does not increase, performs step 1009；
Step 1008, the numerical value for the disturbance quantity that increases speed simultaneously is loaded on the current rotating speed of motor and return to step 1004；
Step 1009, reduce the numerical value of rotating speed disturbance quantity and be loaded on the current rotating speed of motor and return to step 1004；
Step 1010, electric machine controller judges whether rotating speed disturbance quantity is zero, if zero, step 1011 is performed, if not being
Zero, perform step 1004；
Step 1011, terminate.
It is preferred that, the determination formula of the rotating speed disturbance quantity described in step 1003 is：
WhereinRepresent that oil pumper exists（k+1）The oil pumping amount at moment and taking out for k moment
Oil mass difference,Expression system measures the interval time with control,Represent（k+1）Moment motor
Rotating speed disturbed value, N is the coefficient for manually adjusting tracing step, and N>0.
It is preferred that, the operational factor of the motor described in step 1001 is the maximum (top) speed of motor operationally
And minimum speed.
It is preferred that, the motor described in step 1001 is switched reluctance machines, and described electric machine controller is switch
Reluctance motor controller, the signal output part of switched reluctance motor controller is connected with the signal input part of switched reluctance machines,
The output shaft of switched reluctance machines connects the power intake of oil pumper by decelerator.
It is preferred that, the oil pumping exit of described oil pumper is provided with flow sensor, the signal of flow sensor is defeated
Go out end and be connected to switched reluctance motor controller signal input part.
It is preferred that, described switched reluctance motor controller includes the AD conversion unit of multiple input path, with FLASH
CPU, power of motor control unit and the input-output unit of store function, the output end of CPU
It is connected with the input of power of motor control unit, the output end of power of motor control unit and described switched reluctance machines
Input is connected, and input-output unit is connected with the input/output port of CPU, the output end of AD conversion unit
It is connected with the input of CPU.
It is preferred that, electric current is additionally provided with described power of motor control unit and switched reluctance machines connection cable and is passed
Sensor, the output end of current sensor connects the input of current sampled analogue circuit, the output end of current sampled analogue circuit
It is connected to the input of AD conversion unit.
Compared with prior art, the present invention is had an advantageous effect in that：
1st, in this takes out the oil pumper progress control method of fuel-flow control based on maximum, sought by way of motor speed is disturbed
Optimized rotating speed is looked for, to keep maximum oil pumping amount, to the control of oil pumping amount not as oil pumper mechanical parameter, oil reservoir state etc. change
And change, therefore applicability is stronger.
2nd, system is driven using switched reluctance machines, and reliable, service life is long, good energy-conserving effect, installs simple side
Just, economy and durability, use cost is low.
3rd, in this takes out the oil pumper progress control method of fuel-flow control based on maximum, switched Reluctance Motor Control system is utilized
System produces rotating speed disturbance quantity according to oil pumping amount and the relation of rotating speed, and whether the size of simultaneous real-time monitoring oil pumping amount reaches maximum work
It is required, reponse system is constituted by algorithm, the rotating speed of control system realizes the automatic adjusument of beam-pumping unit jig frequency, reaches and take out
The maximum working condition of oil machine oil pumping amount.This control method makes full use of existing technique of real-time control, in real time monitoring oil pumping amount with
The relation of rotating speed, so that real-time regulation system rotating speed.
Brief description of the drawings
Fig. 1 is to be a kind of based on the maximum oil pumper operation control system functional-block diagram for taking out fuel-flow control.
Fig. 2 is to be a kind of based on the maximum oil pumper progress control method flow chart for taking out fuel-flow control.
Embodiment
Fig. 1 ~ 2 are highly preferred embodiment of the present invention, and 1 ~ 2 the present invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of oil pumper maximum oil pumping amount control system, including switched reluctance motor controller, switch magnetic
Motor, decelerator and vertical oil-pumping machine are hindered, switched reluctance motor controller passes through cable connection to switched reluctance machines, switch
The output shaft of reluctance motor is connected with the input of decelerator, and the output end of decelerator is connected with the input of vertical oil-pumping machine,
Rotated by switched reluctance motor controller controlling switch reluctance motor, history is driven by decelerator after switched reluctance machines work
Oil pumper is acted, and realizes oil pumping.The oil pumping exit of vertical oil-pumping machine is provided with flow sensor, the output of flow sensor
It is signally attached to switched reluctance motor controller input.
Switched reluctance motor controller is internally provided with current sensor, current sampled analogue circuit, multiple input path
AD conversion unit, the CPU with FLASH store functions, power of motor control unit and input-output unit
（Input keyboard and display module）.The output end of CPU is connected with the input of power of motor control unit, motor
The output end of power control unit is connected with the input of switched reluctance machines, and current sensor is installed on switched reluctance machines control
In device processed in power of motor control unit and switched reluctance machines connection cable, current sensor output is connected to electric current and adopted
The output signal of original mold plan circuit input end, current sampled analogue circuit output signal and above-mentioned flow sensor is connected respectively
The different input into AD conversion unit, the output end of AD conversion unit is connected to CPU.
CPU reads the current signal digital quantity after AD conversion unit conversion, is controlled by power of motor single
Member is controlled to current of electric, it is possible to achieve the rotational speed regulation of switched reluctance machines, CPU passes through flow simultaneously
The signal of sensor feeding judges the oil pumping amount of vertical oil-pumping machine currently.Input-output unit is connected to CPU
Input/output port, user with display module can be controlled and set to the working condition of switched reluctance machines by keyboard
It is fixed.
As shown in Fig. 2 a kind of oil pumper maximum oil pumping amount control method, comprises the following steps：
Step 1001, the maximum (top) speed and minimum speed of configuration switch reluctance motor；
Before switched reluctance machines work, pass through the input-output unit configuration switch in switched reluctance motor controller first
Reluctance motor maximum (top) speed operationally and minimum speed, make switched reluctance machines within the specific limits can with speed governing operation,
The maximum (top) speed and minimum speed of switched reluctance machines are stored in the FLASH memory of CPU.
Step 1002, switched reluctance machines are run；
After the running parameter of switched reluctance machines is provided with, switched reluctance motor controller driving switch reluctance motor starts
Operation, switched reluctance motor controller controlling switch reluctance motor is operated between the maximum (top) speed set and minimum speed.
Step 1003, generate rotating speed disturbance quantity and be loaded on the current rotating speed of switched reluctance machines；
Existed by the CPU in switched reluctance motor controllerkMoment generates a rotating speed disturbance quantity at random, and will turn
Fast disturbance quantity is superimposed upon on the basis of the current rotating speed of switched reluctance machines.
Rotating speed disturbance quantity can be on the occasion of（Increase the rotating speed of switched reluctance machines）, or negative value（Reduction switch magnetic
Hinder the rotating speed of motor）, to shorten the time for finding optimal working speed, the big I of switched reluctance machines rotating speed disturbance quantity according to
The derivative value of oil pumping machine oil pumping amount is determined, is formulated as：
WhereinRepresent that oil pumper exists（k+1）The oil pumping amount at moment and taking out for k moment
Oil mass difference,Expression system measures the interval time with control,Represent（k+1）Moment switching magnetic-resistance
Motor speed disturbed value, N is that the coefficient of tracing step, N can be manually adjusted according to wind-force acc power etc.>0 with ensure motor turn
Speed.
Step 1004, oil pumping machine oil pumping amount is detected；
CPU in switched reluctance motor controller obtains vertical oil-pumping machine by flow sensor and is being superimposed turn
Oil pumping amount after fast disturbance quantity.
Step 1005, whether oil pumping machine oil pumping amount reduces；
CPU in switched reluctance motor controller judged after rotating speed disturbance quantity has been superimposed, vertical oil-pumping machine
Whether oil pumping amount reduces, if oil pumping amount reduces, performs step 1006, if the oil pumping amount of vertical oil-pumping machine does not reduce, performs
Step 1007.
Step 1006, change the direction of rotating speed disturbance quantity and be loaded on the current rotating speed of switched reluctance machines；
The oil pumping amount of vertical oil-pumping machine reduces, and represents the in opposite direction of rotating speed disturbance quantity, in switched reluctance motor controller in
Central Processing Unit changes the direction of rotating speed disturbance quantity, and the rotating speed disturbance quantity changed behind direction is loaded into switched reluctance machines
On current rotating speed, return to step 1004.
Step 1007, whether oil pumping machine oil pumping amount increases；
CPU in switched reluctance motor controller judged after rotating speed disturbance quantity has been superimposed, vertical oil-pumping machine
Whether oil pumping amount increases, if oil pumping amount increases, performs step 1008, if the oil pumping amount of vertical oil-pumping machine does not increase, performs
Step 1009.
Step 1008, the numerical value for the disturbance quantity that increases speed simultaneously is loaded on the current rotating speed of switched reluctance machines；
The oil pumping amount increase of vertical oil-pumping machine, represents the in the right direction of rotating speed disturbance quantity, treats that the oil pumping amount of vertical oil-pumping machine is stable
The CPU in switched reluctance motor controller increases the numerical value of rotating speed disturbance quantity under front direction afterwards, and will change direction
Rotating speed disturbance quantity afterwards is loaded on the current rotating speed of switched reluctance machines, return to step 1004.
Step 1009, reduce the numerical value of rotating speed disturbance quantity and be loaded on the current rotating speed of switched reluctance machines；
CPU in switched reluctance motor controller reduces the numerical value for working as rotating speed disturbance quantity under front direction, and will change
Rotating speed disturbance quantity behind direction is loaded on the current rotating speed of switched reluctance machines, return to step 1004.
Step 1010, whether rotating speed disturbance quantity is zero；
CPU in switched reluctance motor controller judges whether rotating speed disturbance quantity is zero, if zero, performs step
Rapid 1011, if be not zero, perform step 1004.
Step 1011, terminate.
Specific work process and principle are as follows：
Before system work, manually switched reluctance machines are set to allow work by the input-output unit of switched reluctance motor controller
The minimum speed and maximum speed of work, make switched reluctance machines within the specific limits can be with speed governing operation.Switched reluctance machines control
The CPU of device processed randomly generates a rotating speed disturbance quantity on the basis of current motor rotating speed,Can be
On the occasion of, or negative value, in rotation speed changeIn the presence of, if oil pumping amount reduces, it should changeDisturbance side
To that is, on the occasion of being changed into negative value, or negative value is changed on the occasion of if oil pumping quantitative change is big, it is correct to illustrate the direction currently disturbed
, the increase of this direction can be continued on after oil pumping amount is stable, until oil pumper output shaft oil mass is not further added by or is subtracted
It is small, now can be byValue reduces, untilIt is approximately zero and the change of oil pumping amount terminates when being approximately zero.
Remain to keep maximum oil pumping amount during in order to ensure underground petroleum changed condition, can stabilization of speed for a period of time after
Artificial addition rotating speed disturbance, motor is found optimal working speed again, keep field output.
In the judgement whether progress oil pumping amount increases or reduce, can artificially it be set based on the numerical value of initial oil pumping amount
A fixed specific numerical value（Or percentage）A threshold value is formed, in the judgement whether progress oil pumping amount increases, if currently
When the absolute value of oil pumping amount and the difference of initial oil pumping amount is more than the threshold value, then it represents that oil pumping quantitative change is big, otherwise represents oil pumping amount
It is unchanged big；In the judgement whether progress oil pumping amount reduces, if the absolute value of current oil pumping amount and the difference of initial oil pumping amount
During more than the threshold value, then it represents that oil pumping amount reduces, otherwise represent that oil pumping amount does not reduce.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (7)
1. it is a kind of based on the maximum oil pumper progress control method for taking out fuel-flow control, including one group of control system for oil-pumping unit, oil pumping
Machine control system includes the motor control of oil pumper, the motor of driving oil pumper work and control motor work
Device, it is characterised in that：Including following rate-determining steps：
Step 1001, the operational factor of motor is set；
Step 1002, motor works according to presetting operational factor and drives oil pumper to act；
Step 1003, electric machine controller generates a rotating speed disturbance quantity at random, and rotating speed disturbance quantity is superimposed upon into motor
On the basis of current rotating speed；
Step 1004, real-time oil pumping amount of the oil pumper after rotating speed disturbance quantity has been superimposed is obtained；
Step 1005, electric machine controller is judged after rotating speed disturbance quantity has been superimposed, and whether the oil pumping amount of oil pumper reduces, if
Oil pumping amount reduces, and performs step 1006, if the oil pumping amount of oil pumper does not reduce, performs step 1007；
Step 1006, change the direction of rotating speed disturbance quantity and be loaded on the current rotating speed of motor and return to step 1004；
Step 1007, electric machine controller is judged after rotating speed disturbance quantity has been superimposed, and whether the oil pumping amount of oil pumper increases, if
Oil pumping amount increases, and performs step 1008, if the oil pumping amount of oil pumper does not increase, performs step 1009；
Step 1008, the numerical value for the disturbance quantity that increases speed simultaneously is loaded on the current rotating speed of motor and return to step 1004；
Step 1009, reduce the numerical value of rotating speed disturbance quantity and be loaded on the current rotating speed of motor and return to step 1004；
Step 1010, electric machine controller judges whether rotating speed disturbance quantity is zero, if zero, step 1011 is performed, if not being
Zero, perform step 1004；
Step 1011, terminate.
2. it is according to claim 1 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：Step
The determination formula of rotating speed disturbance quantity described in rapid 1003 is：
WhereinRepresent that oil pumper exists（k+1）The oil pumping amount at moment and taking out for k moment
Oil mass difference,Expression system measures the interval time with control,Represent（k+1）Moment motor
Rotating speed disturbed value, N is the coefficient for manually adjusting tracing step, and N>0.
3. it is according to claim 1 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：Step
The operational factor of motor described in rapid 1001 is motor maximum (top) speed operationally and minimum speed.
4. it is according to claim 1 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：Step
Motor described in rapid 1001 is switched reluctance machines, and described electric machine controller is switched reluctance motor controller, is opened
The signal output part for closing reluctance motor controller is connected with the signal input part of switched reluctance machines, the output of switched reluctance machines
Axle connects the power intake of oil pumper by decelerator.
5. it is according to claim 4 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：
The oil pumping exit of described oil pumper is provided with flow sensor, and the signal output part of flow sensor is connected to switching magnetic-resistance
Electric machine controller signal input part.
6. it is according to claim 4 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：Institute
The switched reluctance motor controller stated includes the AD conversion unit of multiple input path, the centre with FLASH store functions
Unit, power of motor control unit and input-output unit are managed, output end and the power of motor of CPU control list
The input of member is connected, and the output end of power of motor control unit is connected with the input of described switched reluctance machines, input
Output unit is connected with the input/output port of CPU, the output end of AD conversion unit and CPU
Input is connected.
7. it is according to claim 6 based on the maximum oil pumper progress control method for taking out fuel-flow control, it is characterised in that：
Current sensor is additionally provided with described power of motor control unit and switched reluctance machines connection cable, current sensor
Output end connects the input of current sampled analogue circuit, and the output end of current sampled analogue circuit is connected to AD conversion unit
Input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538498.0A CN107294462B (en) | 2017-07-04 | 2017-07-04 | A kind of pumping unit progress control method based on maximum pumping fuel-flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538498.0A CN107294462B (en) | 2017-07-04 | 2017-07-04 | A kind of pumping unit progress control method based on maximum pumping fuel-flow control |
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| Publication Number | Publication Date |
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| CN107294462A true CN107294462A (en) | 2017-10-24 |
| CN107294462B CN107294462B (en) | 2019-04-26 |
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ID=60099278
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| CN201710538498.0A Active CN107294462B (en) | 2017-07-04 | 2017-07-04 | A kind of pumping unit progress control method based on maximum pumping fuel-flow control |
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| CN105429554A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Control method of switched reluctance driving system for pumping unit |
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| WO2017109921A1 (en) * | 2015-12-24 | 2017-06-29 | 日立三菱水力株式会社 | Variable speed pumped-storage hydroelectric generation device |
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2017
- 2017-07-04 CN CN201710538498.0A patent/CN107294462B/en active Active
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| US20100186402A1 (en) * | 2007-02-09 | 2010-07-29 | Hitachi Construction Machinery Co., Ltd. | Pump torque control system for hydraulic construction machine |
| CN102937507A (en) * | 2012-11-20 | 2013-02-20 | 上海神开石油化工装备股份有限公司 | High-precision wireless indicator for pumping unit and method for measuring indicator diagram of pumping unit |
| CN105429554A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Control method of switched reluctance driving system for pumping unit |
| WO2017109921A1 (en) * | 2015-12-24 | 2017-06-29 | 日立三菱水力株式会社 | Variable speed pumped-storage hydroelectric generation device |
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| CN107294462B (en) | 2019-04-26 |
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