CN106026836A - Multi-mode driving control system of pumping unit - Google Patents
Multi-mode driving control system of pumping unit Download PDFInfo
- Publication number
- CN106026836A CN106026836A CN201610344720.9A CN201610344720A CN106026836A CN 106026836 A CN106026836 A CN 106026836A CN 201610344720 A CN201610344720 A CN 201610344720A CN 106026836 A CN106026836 A CN 106026836A
- Authority
- CN
- China
- Prior art keywords
- mode
- module
- oil pumper
- speed
- control system
- 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.)
- Pending
Links
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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/0077—Characterised by the use of a particular software algorithm
Abstract
The invention discloses a multi-mode driving control system of a pumping unit. The multi-mode driving control system comprises a frequency converter, a signal detecting module, a controlled quantity output module, a DSP core processing module, a communication module, and a display and setting module. The multiple operating modes of the walking beam type pumping unit can be realized; different operating modes can be chosen according to different working conditions and production requirements so as to improve the current situation that the existing control system of the pumping oil has a single control mode and cannot adapt to the complicated working conditions, so that the purposes of reducing energy consumption, improving the liquid production capacity and improving the energy efficiency are fulfilled; and meanwhile, the non-impact flexible starting of the pumping unit also can be realized. The realizable operating modes of the pumping unit comprise a power frequency mode, a frequency conversion constant speed operating mode, an operating mode with high uplink speed and low downlink speed, a power servo operating mode, and a speed optimization operating mode.
Description
Technical field
The present invention relates to a kind of oil pumper multi-mode driving control system, be exclusively used in oil field beam pumping unit and realize plurality of operating modes.
Background technology
At present, each elephant of China subsequently enters high water-cut development period, and oil recovery operating mode is the most complicated.And the oil pumper driving control system control model of oil field employing is the most single, often can only realize one to two kinds of operational modes, it is impossible to well adapt to various operating mode and the different demand produced.Beam pumping unit with its simple in construction, reliability is high, adaptation condition condition is good etc., and advantage is widely used at Oil Field, but has during its use that power factor is low, inefficient, load factor is the most on the low side and the weakness such as start-up course rush of current is big.And the drive system for beam pumping unit on current market does not has corresponding operational mode and can be good at solving the problems referred to above.
Summary of the invention
Present invention aim at providing a kind of oil pumper multi-mode driving control system, realize beam pumping unit plurality of operating modes, different operational modes can be selected with Production requirement according to different operating modes, change the present situation that existing control system for oil-pumping unit control model is single, do not adapt to the demand of complex working condition, to reach to reduce energy consumption, to improve Liquid output, improve the purpose of efficiency, starting without impact flexibility of oil pumper can also be realized simultaneously.
In order to overcome the deficiency that existing oil pumper driving control system operational mode is single, and preferably improve beam pumping unit operational effect.The present invention provides a kind of oil pumper multi-mode driving control system, this oil pumper multi-mode driving control system can not only realize the multiple-working mode that oil pumper runs, especially there is raising beam pumping unit system efficiency, reduce the operational mode starting impact, and be capable of oil pumper and start without impact flexibility.The operational mode of this oil pumper multi-mode driving control system includes: power frequency operation pattern, variable-frequency constant speed running mode, upper fast under slow operational mode, power servo operational mode and speed-optimization operational mode.
Flexible startup refers to that the nothing of pumping well system impacts soft start.Oil pumper driving control system control converter output frequency from zero-frequency gradually go forward one by one change power supply, so that motor keeps less revolutional slip slowly to start, ensure in pumping unit system start-up course without electric energy and mechanical shock, and then the installed capacity of motor of oil extractor can be reduced.
Power frequency pattern is that oil pumper runs with 50Hz, and beam-pumping unit jig frequency is fixed.
Variable-frequency constant speed running mode is to particular value by converter change supply frequency, makes motor of oil extractor run with constant speed, and then reaches arbitrarily to regulate the effect of beam-pumping unit jig frequency, thus adapt to the oil well condition of different fluid supply capacity, it is achieved energy-conservation purpose.
Under the fastest, slow operational mode is that oil pumper runs during upstroke at a relatively high speed, and runs with relatively low velocity in down stroke.Converter is controlled by DSP core control module in real time, different supply frequencies is exported respectively in upstroke and down stroke, enable fast under slow operational mode arbitrarily regulate sucker rod upstream and downstream speed and beam-pumping unit jig frequency, thus adapt to different oil well condition, and reach to improve the purpose of Liquid output.
Power servo operational mode is for making motor speed match with oil pumper load change, and basic principle is that load is the biggest, and rotating speed is the lowest, and load is the least, and rotating speed is the highest, and then makes oil pumper overall power tend to be steady.Power servo operational mode can arbitrarily regulate beam-pumping unit jig frequency, it is capable of the flexible operation of oil pumper, can dynamic tracking load change, avoid starting impact, reducing power swing, eliminate " generating " phenomenon in oil pumper running, reduce the mechanical shock caused due to load acute variation simultaneously, program runs on this pattern, carry out pid algorithm calculating in real time, and the stepping DA value of control D/A module output in real time controls oil pumper, improve the operation conditions of oil pumper, improve oil pumper efficiency.
Speed-optimization operational mode is from pumping efficiency of oil pump analysis, by pump efficiency optimum state inverting to motor speed state, on the basis of the servo-actuated operational mode of pumping unit power, carry out pid algorithm calculating and to oil pumper cycle of operation in the speed that carries out of specific interval adjust again.Speed-optimization operational mode can arbitrarily adjust beam-pumping unit jig frequency, optimize the VELOCITY DISTRIBUTION in the oil pumper cycle, speed-optimization can be realized on the basis of flexible operation, improve running efficiency of system, reach to improve oil pumper operation conditions, improve efficiency and the purpose of Liquid output.Improve running efficiency of system.
The technical solution adopted for the present invention to solve the technical problems is: this oil pumper multi-mode driving control system includes: converter, signal detection module, controlled quentity controlled variable output module, DSP core processing module, communication module and display with module is set.
Converter, it is achieved be the power supply that system needs frequency by net side Power convert, and the quick response of frequency can be realized, 0-50Hz response time is less than 3s.
Signal detection module, it is achieved to oil pumper voltage, the collection of current signal, and realized walking beam angle and the measurement of motor speed by obliquity sensor and velocity sensor, the renewal speed of measurement data reaches 20ms/ time.By the collection of voltage, electric current being calculated the parameters such as the real-time power of pumping unit system, power factor, calculate as control system algorithm and the important references amount of system control.Obliquity sensor is vertically mounted on the surface of walking beam rotary shaft, for obtaining the real-time position information that oil pumper runs, and determines the position of upper bottom dead centre.Speed probe is arranged on the tail end of motor, for the rotating speed of measurement motor in real time, the feedback quantity controlled as oil pumper multi-mode drive system.
The digital signal that DSP core processing module exports is converted into the analogue signal of-10-10V by controlled quentity controlled variable output module by high speed D/A chip, the analogue signal that analogue signal is connected on after isolating chip converter again controls end, controls converter by analogue signal and exports suitable supply frequency.
DSP core processing module, uses and has the dsp processor TMS320F28335 of 32 floating-point disposal abilities, and the control algolithm of integrated 5 kinds of mode of operations of oil pumper can be according to default, it is achieved corresponding oil pumper operational mode.This DSP core processing module receives the information of signal detection module input, calculated by the algorithm of different operational modes and control the digital output of converter to controlled quentity controlled variable output module, and realize data interaction with communication module, mainly include the mutual of current state parameter, Mode selection instructions and parameter setting command.
Communication module includes that serial communication communicates with network interface two parts, and serial communication realizes DSP core processing module and display and the communication arranging module, and network interface communication realizes the communication of DSP core processing module and host computer.
Show and module is set, it is achieved oil pumper current state and the display of mode parameter, oil pumper operational mode can be realized simultaneously and select to arrange with the change of control parameter.
Host computer can realize display and the repertoire arranging module, and can realize mutual with DSP core processing module more fully information, including obtaining the data such as the electrical quantity of Real-time Collection, angle, speed, conveniently carry out test and the data analysis of oil pumper multi-mode driving control system.
It addition, oil pumper multi-mode driving control system can depart from host computer independent operating.
The invention has the beneficial effects as follows, it is possible to achieve the plurality of operating modes of oil pumper, to adapt to different rod-pumped well operating modes and Production requirement.Power servo operational mode can improve the operational effect of oil pumper, improves efficiency, reduces the mechanical shock in running.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil pumper multi-mode driving control system one specific embodiment of the present invention.
Fig. 2 is the flow chart under oil pumper variable-frequency constant speed running mode
Fig. 3 be fast on oil pumper under flow chart under slow operational mode
Fig. 4 is the flow chart under the servo-actuated operational mode of pumping unit power
Fig. 5 is the flow chart under oil pumper speed-optimization operational mode
Detailed description of the invention
For making the above and other objects, features and advantages of the present invention to become apparent, cited below particularly go out preferred embodiment, and coordinate shown in accompanying drawing, be described in detail below.
As shown in Figure 1, electrical network 1 connects the power input of converter 9, motor 3 connects the outfan of converter 9, signal detection module 8 connects converter 9 and DSP core processing module 6, controlled quentity controlled variable output module 7 connects the Analog control end of DSP core processing module 6 and converter 9, communication module 5 connects display respectively and arranges module 4 and DSP core processing module 6, and additionally communication module 5 also can be connected with host computer 10.
Signal detection module 8 connects the input of converter 9 and realizes the collection of oil pumper electrical quantity, and connects obliquity sensor and speed probe realizes the collection of walking beam angle and electromotor velocity.By the collection of voltage, electric current being calculated the parameters such as the real-time power of pumping unit system, power factor, calculate as control system algorithm and the important references amount of system control.Obliquity sensor is vertically mounted on the surface of walking beam rotary shaft, for obtaining the real-time position information that oil pumper runs, and determines the position of upper bottom dead centre.Speed probe is arranged on the tail end of motor 3, for the rotating speed of measurement motor in real time, the feedback quantity controlled as oil pumper multi-mode drive system.
Running status current for oil pumper, operational mode and parameter information are sent to display by communication module 5 and arrange module 4 by DSP core control module 6, show and arrange module 4 and these parameters shown in real time.DSP core control module 6 receives display and arrange that module 4 assigns flexible starts, after pattern switching or parameter change etc. order, DSP core control module 6 receives the data that signal detection module 8 gathers, calling respective algorithms and merge the information such as all of electrical quantity of oil pumper, position, rotating speed, after computational analysis, the corresponding digital signal that controls of output is to controlled quentity controlled variable output module 7.The digital signal received is converted to the analogue signal in the range of-10-10V by D/A change-over circuit by controlled quentity controlled variable output module 7, after isolating chip, analogue signal is connected on the Analog control end of converter 9 again, and then export rational supply frequency to motor 3, reach to regulate the purpose of motor speed.
Host computer 10, for convenience of the debugging of oil pumper multi-mode driving control system and data analysis design, can replace display completely and arrange module 4, and having more fully function.In the case of connecting display and arranging module 4, oil pumper multi-mode driving control system can depart from host computer 10 and run.After host computer 10 is connected with communication module 5, it is possible to obtain oil pumper parameter as required, and curve can be realized show and data storage function, thus facilitate system debug and oil pumper data analysis.
In one embodiment, pumping unit system runs with power frequency state, and energy hunting is violent.For the stabilization of power grids, the purpose of impact minimum, switching oil pumper multi-mode driving control system operational mode is power servo operational mode, DSP core control module receives running mode switching control algolithm after order, if non-setup control parameter, under default control parameters, perform power servo control algolithm, running artificially changes control parameter also dependent on needs by showing and arranging module, as improved beam-pumping unit jig frequency.DSP core control module obtains the real time information that signal detection module gathers, and by controlling the comparison operation of target with power servo, then exports appropriate voltage value through controlled quentity controlled variable output module, controls motor speed in real time.Run under power servo control model so that motor power (output) remains relatively steady, reduces the impact of pumping well system.
More than should be only presently preferred embodiments of the present invention, be not used to limit the scope of the claims of the present invention, the equivalence change of the patent spirit of other utilizations present invention, all should all belong to the scope of the claims of the present invention.
Claims (4)
1. an oil pumper multi-mode driving control system, it is characterised in that including: converter, signal detection module, controlled quentity controlled variable
Output module, DSP core processing module, communication module and display with module is set, beam pumping unit work can be realized
Frequently operational mode, variable-frequency constant speed running mode, upper fast under slow operational mode, power servo operational mode and speed-optimization
5 kinds of operational modes of operational mode, can carry out the selection of operational mode according to different operating modes and Production requirement.
Oil pumper multi-mode driving control system the most according to claim 1, it is characterised in that be capable of the nothing of oil pumper
Impact flexibility starts, and makes the input current of system, the output of motor all smooth rises to power frequency operation state from zero,
Eliminate impact and start peak value.Wherein said power servo operational mode, it is characterised in that make motor speed and take out
Oil machine load change matches, and load is the biggest, and rotating speed is the lowest, and load is the least, and rotating speed is the highest, reduces mechanical system
Mechanical shock, and eliminate " generating ", reduce the energy consumption of system.Wherein said speed-optimization operational mode,
It is characterized in that from pumping efficiency of oil pump analysis, to oil pumper cycle of operation on the basis of the servo-actuated operational mode of pumping unit power
The speed that interior specific interval is carried out adjusts again, optimizes the VELOCITY DISTRIBUTION in one cycle of oil pumper.
Oil pumper multi-mode driving control system the most according to claim 1, it is characterised in that electrical network connects the electricity of converter
Source input, motor connects the outfan of converter, and signal detection module connects converter and DSP core processes mould
Block, controlled quentity controlled variable output module connects DSP core processing module and the Analog control end of converter, and communication module is respectively
Connecting display and arrange module and DSP core processing module, additionally communication module also can be connected with host computer.
Oil pumper multi-mode driving control system the most according to claim 1 and 2, it is characterised in that DSP core processes mould
Block uses the dsp processor TMS320F28335 with 32 floating-point disposal abilities, 5 kinds of Working moulds of integrated oil pumper
The control algolithm of formula；The numeral letter that DSP core processing module is exported by controlled quentity controlled variable output module by high speed D/A chip
Number it is converted into the analogue signal of-10-10V, then after isolating chip, analogue signal is connected on the analogue signal control of converter
End processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610344720.9A CN106026836A (en) | 2016-05-23 | 2016-05-23 | Multi-mode driving control system of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610344720.9A CN106026836A (en) | 2016-05-23 | 2016-05-23 | Multi-mode driving control system of pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106026836A true CN106026836A (en) | 2016-10-12 |
Family
ID=57096567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610344720.9A Pending CN106026836A (en) | 2016-05-23 | 2016-05-23 | Multi-mode driving control system of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106026836A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952955A (en) * | 2018-09-26 | 2020-04-03 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy-saving method |
| CN113315442A (en) * | 2020-02-25 | 2021-08-27 | 中国石油化工股份有限公司 | Method for optimizing rotating speed of self-adaptive power motor of oil pumping unit and follow-up control system |
| CN113890458A (en) * | 2021-09-29 | 2022-01-04 | 广东万和热能科技有限公司 | Motor control method, control circuit and device of water pump and gas water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040267468A1 (en) * | 2003-06-30 | 2004-12-30 | Baker Hughes Incorporated | Low harmonic diode clamped converter/inverter |
| CN202218189U (en) * | 2011-09-16 | 2012-05-09 | 天津市华萌科技有限公司 | Load follow-up self-adapting power saving device special for pumping unit |
| CN105007022A (en) * | 2015-09-02 | 2015-10-28 | 安徽钟南电器有限责任公司 | Frequency-conversing compensating and energy saving control apparatus of oil pumping unit in oil fields |
-
2016
- 2016-05-23 CN CN201610344720.9A patent/CN106026836A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040267468A1 (en) * | 2003-06-30 | 2004-12-30 | Baker Hughes Incorporated | Low harmonic diode clamped converter/inverter |
| CN202218189U (en) * | 2011-09-16 | 2012-05-09 | 天津市华萌科技有限公司 | Load follow-up self-adapting power saving device special for pumping unit |
| CN105007022A (en) * | 2015-09-02 | 2015-10-28 | 安徽钟南电器有限责任公司 | Frequency-conversing compensating and energy saving control apparatus of oil pumping unit in oil fields |
Non-Patent Citations (1)
| Title |
|---|
| 于海山: "基于降低机采单耗的抽油机柔性运行技术研究与应用", 《油气藏评价与开发》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952955A (en) * | 2018-09-26 | 2020-04-03 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy-saving method |
| CN110952955B (en) * | 2018-09-26 | 2023-06-20 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy saving method |
| CN113315442A (en) * | 2020-02-25 | 2021-08-27 | 中国石油化工股份有限公司 | Method for optimizing rotating speed of self-adaptive power motor of oil pumping unit and follow-up control system |
| CN113315442B (en) * | 2020-02-25 | 2023-03-28 | 中国石油化工股份有限公司 | Method for optimizing rotating speed of self-adaptive power motor of oil pumping unit and follow-up control system |
| CN113890458A (en) * | 2021-09-29 | 2022-01-04 | 广东万和热能科技有限公司 | Motor control method, control circuit and device of water pump and gas water heater |
| CN113890458B (en) * | 2021-09-29 | 2023-07-04 | 广东万和热能科技有限公司 | Motor control method, control circuit, device and gas water heater of water pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203101986U (en) | Self-adaptive variable-frequency energy-saving control device of rod-pumped well | |
| CN106026836A (en) | Multi-mode driving control system of pumping unit | |
| CN104775792A (en) | Intelligent oil pumping control method and intelligent oil pumping unit | |
| CN103206364A (en) | System and method for single-model water pump energy-saving operation dispatching | |
| CN103233721B (en) | Beam pumping unit machine ground mechanical system dynamic location method and device | |
| CN102879142B (en) | Device and method for measuring motor efficiency | |
| CN201662055U (en) | ARM platform-based three-element water feeding regulator of steam boiler | |
| CN104476744B (en) | A kind of injection machine energy-saving servo-control system | |
| CN110895396B (en) | Iterative approach follow-up leveling control method and device for beam-pumping unit | |
| CN214366015U (en) | Pumping unit stroke frequency dynamic adjusting system based on switched reluctance speed regulating motor | |
| CN204256489U (en) | A kind of large-scale oil extracting ship Intelligent controller for fume extractor | |
| CN203338050U (en) | Variable frequency intelligent control system for oil pumping machine | |
| CN103293990A (en) | Controller and control method of direct-drive pumping unit of permanent magnet synchronous motor | |
| CN105697346B (en) | A kind of air compressor energy-saving control method | |
| CN115596412A (en) | Automatic pumping unit stroke frequency adjusting method based on continuous liquid production of pumping unit wellhead | |
| CN201270490Y (en) | Energy saving control apparatus for oil pumping machine large power DC brushless motor | |
| CN112412403B (en) | Automatic control method for intermittent pumping period amplitude swing operation of pumping unit by using disc motor | |
| CN202742481U (en) | Servo power system of ceramic brick machine | |
| CN103023392A (en) | Low-voltage frequency converter with rotate speed tracking start | |
| CN106437625A (en) | Novel walking beam pumping unit automatic balance adjustment method and device | |
| CN202789472U (en) | Control system of environment-friendly and energy-saving air compressor | |
| CN204436346U (en) | A kind of new pumping unit intelligent controller for production vessel | |
| CN106292569A (en) | Oil pumper gang of wells soft drive control system | |
| CN206180921U (en) | Pumping -unit motor variable speed operation flexible controller | |
| CN113738316B (en) | Beam-pumping unit automatic optimization operation method based on multi-winding motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |