CN202737804U - Intelligent electricity-saving speed regulation control device of beam-pumping unit - Google Patents
Intelligent electricity-saving speed regulation control device of beam-pumping unit Download PDFInfo
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- CN202737804U CN202737804U CN2012203948500U CN201220394850U CN202737804U CN 202737804 U CN202737804 U CN 202737804U CN 2012203948500 U CN2012203948500 U CN 2012203948500U CN 201220394850 U CN201220394850 U CN 201220394850U CN 202737804 U CN202737804 U CN 202737804U
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- servo system
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- speed
- programmable dsps
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Abstract
The utility model provides an intelligent electricity-saving speed regulation control device of a beam-pumping unit, comprising a working motor, an information feedback module, a programmable DSP servo system, a speed regulation module, a control button, a power module and a man-machine conversation module. The information feedback module is electrically connected with the working motor and is used for feeding back voltage, current, torque and rotation speed parameters of the working motor during running; the programmable DSP servo system is electrically connected with the working motor and the information feedback module; the speed regulation module, the control button, the power module and the man-machine conversation module are electrically connected with the programmable DSP servo system; and the programmable DSP servo system includes a position loop and torque loop control circuit and a current loop and speed loop control circuit, which are electrically connected. The intelligent electricity-saving speed regulation control device of the beam-pumping unit provides an effective solution for such problems as difficult start-up of the pumping unit, difficult rotation speed regulation and inverse power phenomenon occurred when a horse head descends and has obvious power saving effect.
Description
Technical field
The utility model relates to field of oil drilling, particularly the intelligent motor control field of beam pumping unit.
Background technology
Beam pumping unit is the capital equipment of oil exploitation, as shown in Figure 1, its groundwork process is: AC asynchronous motor 06 drives crank 05 rotation that balancing weight is housed through deceleration device, the end of crank 05 links to each other with connecting rod 04, the other end of connecting rod 04 is connected to walking beam 03 end and spurs walking beam 03, the horse head 02 that is installed in walking beam 03 other end is constantly moved up and down (being up-down stroke), thereby moving up and down of horse head 02 drive the piston type oil well pump oil pumping in shaft bottom by sucker rod 01.When upstroke was moved, motor 06 need overcome the acting of oil pumping load with the balancing weight that is in a high position, and crude oil is extracted out.When down stroke, horse head 02 and sucker rod 01 descend rapidly, and motor 06 does not need acting, and in the process that horse head 02 descends rapidly, the rotating speed of actual motor 06 can surpass synchronous speed, makes motor 06 be in the generator operation state.
Because balancing weight rotatablely moves and the pumping of horse head, so the induction-motor load of beam pumping unit is a kind of periodically pulsing stress alternation, in the actual condition also with anti-load etc. the situation of dragging of irregular moment impact.AC asynchronous motor often will leave larger Capacity Margin when design, load factor was all very low when these motor normally moved, generally at 20%-30%.The underload rate and instead drag that generating will bring that power factor is low, electric energy is wasted in a large number, low etc. a series of unfavorable factors of efficient, thereby cause the waste of the electric energy in the recover petroleum process.
Adopt at present electromagnetic adjustable speed motors as drive motors more in the prior art, or adopt the method for frequency converter timing to reduce waste of energy.But can only reach 60% during electromagnetic adjustable speed motor most effective, Energy Efficiency Ratio is very low, adds the needed starting torque of beam pumping unit large, so overall efficiency less than 20%.And when using frequency converter timing, because there is the situation of oil pumper reverse pulling motor running in the quadric chain of beam pumping unit, short can't the utilization of high time of electric energy voltage of sending motor frequently appear operate in the fourth quadrant electric phenomenon; And the high order harmonic component that produces of small-power generating is very large to electric network pollution frequently, does not have practical value.
Summary of the invention
The purpose of this utility model is to overcome defective of the prior art, and a kind of smart electricity-saving speed-regulating control device of beam that can effectively reduce the power of motor loss is provided.
For reaching above-mentioned purpose, the utility model proposes a kind of smart electricity-saving speed-regulating control device of beam, comprising: work drive motor; The information feedback module is electrically connected with described work drive motor, feeds back voltage, electric current, moment and the rotary speed parameter of described work drive motor when operation; The Programmable DSPs servo system is electrically connected with described work drive motor and described information feedback module, receives voltage, electric current, moment and the rotary speed parameter of described information feedback module feedback and carries out analytical calculation, exports a control signal according to result of calculation; The speed adjustment module is electrically connected with described Programmable DSPs servo system, according to the control signal of described Programmable DSPs servo system output, the speed of service of regulating described work drive motor; Control button is electrically connected with described Programmable DSPs servo system, sends control command to described Programmable DSPs servo system; Power module is electrically connected with described Programmable DSPs servo system, provides stable working power to described Programmable DSPs servo system; The human-computer dialogue module is electrically connected with described Programmable DSPs servo system, to carry out the remote monitoring operation.
The smart electricity-saving speed-regulating control device of beam that the utility model proposes, wherein, described Programmable DSPs servo system comprises position ring, moment loop control circuit and described electric current loop, speed ring control circuit, and described position ring, moment loop control circuit and described electric current loop, speed ring control circuit are electrically connected.
The utility model has the advantage of, do not need to transform the mechanical structure of beam pumping unit, adopt the original little 1-2 of power ratio permanent power AC asynchronous motor doubly just can allow oil pumper carry out work.Utilize the moment follow-up speed control system, choose suitable velocity of rotation; Utilize the variation of electric current, position control system real-time tracking oil well load, differentiate in advance empty generation of taking out, change at any time the speed that AC asynchronous motor is rotated, reach the optimum Match of motor and oil pumper with this.Pass through the technical solution of the utility model, fundamentally solve the phenomenon of oil pumper reverse pulling motor generating when oil pumper is descending, improved system effectiveness, improved the service conditions of motor, reduce heating, vibration, noise and the ferromagnetic loss of motor, reach energy-saving and cost-reducing purpose.
Description of drawings
Fig. 1 is the structural representation of beam pumping unit;
Fig. 2 is functional block diagram of the present utility model;
Fig. 3 is circuit structure diagram of the present utility model.
Description of reference numerals: 01-sucker rod; The 02-horse head; The 03-walking beam; The 04-connecting rod; The 05-crank device; The 06-motor; The 07-support; 1-Programmable DSPs servo system; The 2-work drive motor; 3-information feedback module; 4-speed adjustment module; The 5-control button; The 6-power module; 7-human-computer dialogue module.
Embodiment
As shown in Figure 2, be functional block diagram of the present utility model, comprise: work drive motor 2; Information feedback module 3 is electrically connected with described work drive motor 2, feeds back voltage, electric current, moment and the rotary speed parameter of described work drive motor 2 when operation; Programmable DSPs servo system 1 is electrically connected with described work drive motor 2 and described information feedback module 3, receives voltage, electric current, moment and the rotary speed parameter of described information feedback module 3 feedbacks and carries out analytical calculation, exports a control signal according to result of calculation; Speed adjustment module 4 is electrically connected with described Programmable DSPs servo system 1, according to the control signal of described Programmable DSPs servo system 1 output, the speed of service of regulating described work drive motor 2; Control button 5 is electrically connected with described Programmable DSPs servo system 1, sends control command to described Programmable DSPs servo system 1; Power module 6 is electrically connected with described Programmable DSPs servo system 1, provides stable working power to described Programmable DSPs servo system 1; Human-computer dialogue module 7 is electrically connected with described Programmable DSPs servo system 1, to carry out the remote monitoring operation.
Fig. 3 is circuit structure diagram of the present utility model.As can be seen from Figure 3, Programmable DSPs servo system 1 comprises position ring, moment loop control circuit 11 and described electric current loop, speed ring control circuit 12, this position ring, moment loop control circuit 11 and this electric current loop, speed ring control circuit 12 is electrically connected, so that electric current, moment, speed, position during AC asynchronous motor work are in four closed-loop systems.
The course of work of the present utility model is: after device starts, the size and Orientation of Programmable DSPs servo system control work drive motor moment, reach given when presetting jig frequency by the pi regulator steady working condition.Servo system is monitored the moment of torsion of motor at any time in operation process, the torque current output of cut-off servo system (only provides weak excitation to motor when the motor reel moment of torsion progressively reduces to be about to be zero, its objective is the quick response in order to guarantee again to drop into), this moment, motor was the free state rotation, and the horse head of oil pumper is with balancing weight and motor free-running operation.In idle running, a large amount of potential energy converting and energy does not become rotatory inertia kinetic energy to be stored in the balancing weight to motor because send into torque current.Begin when up when horse head strides across lower dead center, the rotatory inertia kinetic energy in the balancing weight begins to discharge, and along with the continuous increase of burst size, the axle rotating speed of motor constantly reduces.When the axle rotating speed of motor is about to be lower than the motor preset speed of setting, servo system begins to follow the tracks of the axle rotating speed of motor and the rotor angle of motor, calculate frequency and the electrical degree that to export when the decision motor drops into again, tracking finishes, synchronously after servo system to motor excitation, outputting power, the electricity consumption acting stops electricity consumption and does not do work when accomplishing to pump when not pumping.
Claims (2)
1. a smart electricity-saving speed-regulating control device of beam is characterized in that, comprising:
Work drive motor;
The information feedback module is electrically connected with described work drive motor, feeds back voltage, electric current, moment and the rotary speed parameter of described work drive motor when operation;
The Programmable DSPs servo system is electrically connected with described work drive motor and described information feedback module, receives voltage, electric current, moment and the rotary speed parameter of described information feedback module feedback and carries out analytical calculation, exports a control signal according to result of calculation;
The speed adjustment module is electrically connected with described Programmable DSPs servo system, according to the control signal of described Programmable DSPs servo system output, the speed of service of regulating described work drive motor;
Control button is electrically connected with described Programmable DSPs servo system, sends control command to described Programmable DSPs servo system;
Power module is electrically connected with described Programmable DSPs servo system, provides stable working power to described Programmable DSPs servo system;
The human-computer dialogue module is electrically connected with described Programmable DSPs servo system, to carry out the remote monitoring operation.
2. smart electricity-saving speed-regulating control device of beam according to claim 1, it is characterized in that, described Programmable DSPs servo system comprises position ring, moment loop control circuit and described electric current loop, speed ring control circuit, and described position ring, moment loop control circuit and described electric current loop, speed ring control circuit are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203948500U CN202737804U (en) | 2012-08-09 | 2012-08-09 | Intelligent electricity-saving speed regulation control device of beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203948500U CN202737804U (en) | 2012-08-09 | 2012-08-09 | Intelligent electricity-saving speed regulation control device of beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737804U true CN202737804U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203948500U Expired - Fee Related CN202737804U (en) | 2012-08-09 | 2012-08-09 | Intelligent electricity-saving speed regulation control device of beam-pumping unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202737804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868819A (en) * | 2015-05-29 | 2015-08-26 | 上海共久电气有限公司 | Method of realizing wound-rotor motor redundant rotation speed feedback and device |
-
2012
- 2012-08-09 CN CN2012203948500U patent/CN202737804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868819A (en) * | 2015-05-29 | 2015-08-26 | 上海共久电气有限公司 | Method of realizing wound-rotor motor redundant rotation speed feedback and device |
| CN104868819B (en) * | 2015-05-29 | 2017-07-21 | 上海共久电气有限公司 | A kind of method and device for realizing coiling electric motor redundancy speed feedback |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150809 |
|
| EXPY | Termination of patent right or utility model |