CN203851071U - Energy-saving control equipment system for dragging motor of oil pumping unit - Google Patents
Energy-saving control equipment system for dragging motor of oil pumping unit Download PDFInfo
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- CN203851071U CN203851071U CN201420099194.0U CN201420099194U CN203851071U CN 203851071 U CN203851071 U CN 203851071U CN 201420099194 U CN201420099194 U CN 201420099194U CN 203851071 U CN203851071 U CN 203851071U
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Abstract
The utility model discloses an energy-saving control equipment system for a dragging motor of an oil pumping unit. The energy-saving control equipment system comprises an on-off magnetic-resistance motor and an energy-saving controller. The energy-saving controller comprises an operation display circuit, a control circuit, a drive circuit and a power circuit. The operation display circuit is connected with the control circuit, and the control circuit is connected with the on-off magnetic-resistance motor, the drive circuit and the power circuit. The drive circuit is connected with the power circuit. The power circuit is connected with the on-off magnetic-resistance motor. The energy-saving controller adjusts output power of the on-off magnetic-resistance motor by adjusting the rotation speed of the on-off magnetic-resistance motor. The energy-saving control equipment system can reduce energy loss of a motor and improves efficiency of the motor.
Description
Technical field
The utility model relates to oil pumper dragging motor technical field, relates in particular to oil pumper dragging motor energy-saving control apparatus system.
Background technology
Because the load of oil pumper is a kind of cycling alternating load with impact, and at present oil pumper dragging motor is mainly to adopt threephase asynchronous machine, this motor is adapted to the constant operating mode of load, and this has just caused not mating of motor and load.There is the limitation of the following aspects as oil pumper dragging motor in threephase asynchronous machine:
1, oil pumper loaded starting, electric motor starting electric current, moment of torsion are large, cause motor installed power, energy consumption higher;
2, electric current, moment of torsion are little when operation, and load-rate of motor and efficiency are on the low side;
3, same type, motor rated power is larger, and load-rate of motor is lower;
4, load-rate of motor is lower, causes efficiency low.
Due to above-mentioned four aspects, cause motor under underload, to move for a long time, cannot reach rated efficiency scope, motor power loss is high, thereby affects oil well integrated machine extraction system level of efficiency.
Utility model content
The utility model embodiment provides a kind of oil pumper dragging motor energy-saving control apparatus system, in order to solve the problem of oil pumper Proper Match motor, reduces motor power loss, lifting motor efficiency, and this system comprises:
Switched reluctance machines and energy-saving controller;
Energy-saving controller comprises: operation display circuit, control circuit, drive circuit and power circuit; Wherein, operation display circuit connects control circuit, control circuit connecting valve reluctance motor, drive circuit and power circuit; Drive circuit connects power circuit; Power circuit connecting valve reluctance motor;
The rotating speed that operation display circuit is used for by-pass cock reluctance motor is with by-pass cock reluctance motor power output;
Control circuit is used for adjustment operation display circuit output signal to reach switched reluctance machines service requirement;
Drive circuit drives signal for producing switched reluctance machines according to control circuit output signal;
Power circuit is for driving signal to carry out rectification and drive controlling to switched reluctance machines;
Switched reluctance machines is for pressing power circuit operation output signal, to control circuit feedback power signal;
Control circuit is also for according to power circuit output signal and the further adjustment operation display circuit of switched reluctance machines feedback power signal output signal.
In an embodiment, switched reluctance machines is stator, rotor double-salient-pole variable reluctance motor, and stator, rotor number of poles difference.
In an embodiment, stator, rotor form by silicon steel plate stacking, on rotor, without winding and permanent magnet, have winding on stator.
In an embodiment, energy-saving controller also comprises: control power supply, control power supply and be connected with control circuit and power circuit respectively, for providing power supply to control circuit and power circuit.
In an embodiment, power circuit also connects external power supply.
In an embodiment, operation display circuit provides switched reluctance machines rotational speed regulation button.
In an embodiment, operation display circuit provides start/stop machine button, commutation button and electrical quantity display button one of them or combination in any.
In an embodiment, operation display circuit is specifically in switched reluctance machines power output during higher than first value of cutting off from, the rotating speed of reduction switched reluctance machines; During lower than second value of cutting off from, improve the rotating speed of switched reluctance machines in switched reluctance machines power output; First value of cutting off from is higher than second value of cutting off from.
The oil pumper dragging motor energy-saving control apparatus system of the utility model embodiment, carry out by-pass cock reluctance motor power output by the rotating speed of by-pass cock reluctance motor, not only can solve the problem of oil pumper Proper Match motor, can also reduce electric current, the power of motor operation course, reduce motor power loss, lifting motor efficiency, and then promote the efficiency of whole computer collecting system.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.In the accompanying drawings:
Fig. 1 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment;
Fig. 2 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment;
Fig. 3 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment;
Fig. 4 is the initial condition curve chart of motor angular velocity and power output in the utility model embodiment;
Fig. 5 is the dbjective state curve chart of motor angular velocity and power output in the utility model embodiment.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further details.At this, schematic description and description of the present utility model is used for explaining the utility model, but not as to restriction of the present utility model.
In the utility model embodiment, a kind of oil pumper dragging motor energy-saving control apparatus system is provided, this system is used switched reluctance machines as oil pumper dragging motor, to solve the problem of oil pumper Proper Match motor, digging motor consumption reduction space.Fig. 1 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment.As shown in Figure 1, the oil pumper dragging motor energy-saving control apparatus system of the utility model embodiment, is mainly made up of switched reluctance machines 101 and energy-saving controller 102 two parts, and wherein energy-saving controller is for switched reluctance machines being driven to control.
Switched reluctance machines utilizes magnetic resistance minimum principle, and magnetic flux is always along the path closure of magnetic resistance minimum, pulls rotor by the attraction of tooth interpolar; Coil current break-make, magnetic flux state are directly subject to switch control.Switched reluctance machines operation principle is completely different from threephase asynchronous machine, has following features:
Feature 1, electric efficiency are high
Be mainly reflected in two aspects: the one, no-load current is little, and the 2nd, speed adjustable range is wide, efficiency is high;
Feature 2: starting torque is large, electric current is low
Starting torque is large compared with threephase asynchronous machine, electric current is low, and starting torque is nominal torque 1.5 times time, starting current is rated current 0.3 times;
Feature 3: power factor is high
When switched reluctance machines operation, power factor approaches 1; And threephase asynchronous machine power factor is relevant with load factor, maximum is below 0.9;
Feature 4: rotating speed is easy to control
Controllable parameter is many, and rotating speed control is flexible, can be combined with digitlization oil pumper, according to pump load situation, takes different control methods and parameter value, realizes motor automatic speed regulation.
Using switched reluctance machines as oil pumper dragging motor, apply its frequent forward and backward, starting torque is large, speed adjustable range is wide, power factor is high, there is deceleration of electrons, efficiency is high, the advantages such as good energy-conserving effect, carry out intelligent speed-regulating by energy-saving controller again, can carry out motor to each point in each stroke cycle of switched reluctance machines and mate with the control of load, and then make oil pumper in optimum Working, realization reduces motor power loss, the object of lifting motor and computer collecting system efficiency.
When concrete enforcement, switched reluctance machines can be stator, rotor double-salient-pole variable reluctance motor, and stator, rotor number of poles can difference.Stator, rotor all can be formed by silicon steel plate stacking, on rotor, can, without winding and permanent magnet, on stator, can have winding.Fig. 2 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment.In Fig. 2, be shown specifically the structure of switched reluctance machines taking switched reluctance machines as three-phase 12/8 electrode structure as example.As shown in Figure 2, in switched reluctance machines 201,12 very the A1 utmost point, the B1 utmost point, the C1 utmost point, the A2 utmost point, the B2 utmost point, the C2 utmost point, the a1 utmost point, the b1 utmost point, the c1 utmost point, the a2 utmost point, the b2 utmost point, the c2 utmost points of rotor; Using the relative position of stator and rotor in Fig. 2 as original position, give successively the energising of B → C → A phase winding, rotor can be against excitation order with counter clockwise direction continuous rotation; Otherwise, switch on mutually to successively C → B → A, motor can rotate by clockwise direction.Turning to the sense of current of phase winding of switched reluctance machines is irrelevant, and depends on the order of phase winding energising.By controlling the first electronic switch (IGBT) S1, the operating state of the second electronic switch (IGBT) S2 of phase winding, just can change the operating states such as the turning to of switched reluctance machines 201, torque, rotating speed, braking.In Fig. 2, also showing switched reluctance machines 201 is connected with energy-saving controller 202.
Fig. 3 is the exemplary plot of oil pumper dragging motor energy-saving control apparatus system in the utility model embodiment.In Fig. 3, show in detail the structure composition of energy-saving controller.As shown in Figure 3, energy-saving controller 310 comprises: operation display circuit 311, control circuit 312, drive circuit 313 and power circuit 314; Wherein, operation display circuit 311 connects control circuit 312, control circuit 312 connecting valve reluctance motors 320, drive circuit 313 and power circuit 314; Drive circuit 313 connects power circuit 314; Power circuit 314 connecting valve reluctance motors 320.
When concrete enforcement, in energy-saving controller, the rotating speed that operation display circuit is used for by-pass cock reluctance motor is with by-pass cock reluctance motor power output; Control circuit is used for adjustment operation display circuit output signal to reach switched reluctance machines service requirement; Drive circuit drives signal for producing switched reluctance machines according to control circuit output signal; Power circuit is for driving signal to carry out rectification and drive controlling to switched reluctance machines; Switched reluctance machines is for pressing power circuit operation output signal, to control circuit feedback power signal; Control circuit is also for according to power circuit output signal and the further adjustment operation display circuit of switched reluctance machines feedback power signal output signal.As shown in Figure 3, energy-saving controller 310 can also comprise: control power supply 315, control power supply 315 and be connected with control circuit 312 and power circuit 314 respectively, for providing power supply to control circuit 312 and power circuit 314.When enforcement, power circuit 314 can also connect external power supply 330.
When concrete enforcement, operation display circuit is according to intelligent speed-regulating principle, and the rotating speed of by-pass cock reluctance motor is to reach the object of by-pass cock reluctance motor power output.Intelligent speed-regulating principle is:
Output torque and the angular speed of the power output of motor and motor are proportional, that is:
P=T×ω：
Wherein, the power output that P is motor, unit is KW; T is the output torque of motor, and unit is Nm; ω is angular speed, and unit is rad/s.
Because the size that is driven load is depended in the output torque of motor, and the size of load depends on oil pumper underground working, in the time that underground working is determined, can carry out by-pass cock reluctance motor power output by the rotating speed of by-pass cock reluctance motor.When concrete enforcement, can be in switched reluctance machines power output during higher than first value of cutting off from, the rotating speed of reduction switched reluctance machines; During lower than second value of cutting off from, improve the rotating speed of switched reluctance machines in switched reluctance machines power output; First value of cutting off from is higher than second value of cutting off from.Give an example, first follow the tracks of the initial condition curve (seeing Fig. 4) of one-period motor angular velocity and power output, regulate the power output of motor by changing motor speed, reduce high power district rotating speed with reduce power output, improve low-power district rotating speed with improve power output, realize the redistribution to output power of motor and output torque, power of motor is tended to be steady, straight and absolute value is low, reach the object of " peak load shifting ", be realize target condition curve (seeing Fig. 5), thereby make motor reach energy-saving and cost-reducing, improved efficiency.
When concrete enforcement, for ease of personnel's operation, operation display circuit can provide switched reluctance machines rotational speed regulation button.In addition, operation display circuit can also provide start/stop machine button, commutation button and electrical quantity display button one of them or combination in any, realize electric motor starting and stop, the function such as electric motor protecting.Operation display circuit can also provide display floater, so that the real time inspection parameter of electric machine and operating state etc.
When concrete enforcement, operation display circuit can generate the signal of by-pass cock reluctance motor rotating speed and export this signal to control circuit, and control circuit regulates operation display circuit output signal, to reach switched reluctance machines service requirement.Control circuit can be connected adjustment operation display circuit output signal with motor practical operation situation according to peripheral operation requirement, follow-up again by drive circuit and power circuit, changes the conduction time of motor winding and the size of electric current.Control circuit, after adjustment operation display circuit output signal, exports the signal after regulating to drive circuit.Drive circuit produces switched reluctance machines according to control circuit output signal and drives signal, and offers power circuit.Power circuit drives signal to carry out rectification and drive controlling to switched reluctance machines, and the output signal of power circuit is sent into respectively switched reluctance machines and control circuit.Switched reluctance machines is pressed power circuit operation output signal, to control circuit feedback power signal.Control circuit is again according to power circuit output signal and the further adjustment operation display circuit of switched reluctance machines feedback power signal output signal, and then make rotating speed that whole system continues to optimize by-pass cock reluctance motor with by-pass cock reluctance motor power output, form a self study, adaptive cycling circuit.
In sum, the oil pumper dragging motor energy-saving control apparatus system of the utility model embodiment, carry out by-pass cock reluctance motor power output by the rotating speed of by-pass cock reluctance motor, not only can solve the problem of oil pumper Proper Match motor, can also reduce electric current, the power of motor operation course, reduce motor power loss, lifting motor efficiency, and then promote the efficiency of whole computer collecting system.
The oil pumper dragging motor energy-saving control apparatus system of the utility model embodiment; adopt variable speed drives mode; inertial load in polished rod load is had to certain influence; do not changing under the prerequisite of beam-pumping unit jig frequency; change the distribution of oil pumper operation acceleration, can reduce maximum inertia loading, improve minimum inertia loading; reduce the degree of fluctuation of oil pumper load, protected oil pumper equipment.And variable speed drives mode can make crank torque peak reduce, and reduces motor rated power, can select low-power machine when enforcement, and low-power machine is moved under higher load, reaches energy-saving effect.
In addition, from power curve contrast known (seeing Fig. 4,5), not only power fluctuation significantly reduces, and has substantially eliminated negative work, and oil pumping unit reduction gearbox has been eliminated " back of the body hits " phenomenon, the working life of prolonged deceleration case.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; and be not used in limit protection range of the present utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. an oil pumper dragging motor energy-saving control apparatus system, is characterized in that, comprising:
Switched reluctance machines and energy-saving controller;
Energy-saving controller comprises: operation display circuit, control circuit, drive circuit and power circuit; Wherein, operation display circuit connects control circuit, control circuit connecting valve reluctance motor, drive circuit and power circuit; Drive circuit connects power circuit; Power circuit connecting valve reluctance motor;
The rotating speed that operation display circuit is used for by-pass cock reluctance motor is with by-pass cock reluctance motor power output;
Control circuit is used for adjustment operation display circuit output signal to reach switched reluctance machines service requirement;
Drive circuit drives signal for producing switched reluctance machines according to control circuit output signal;
Power circuit is for driving signal to carry out rectification and drive controlling to switched reluctance machines;
Switched reluctance machines is for pressing power circuit operation output signal, to control circuit feedback power signal;
Control circuit is also for according to power circuit output signal and the further adjustment operation display circuit of switched reluctance machines feedback power signal output signal.
2. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 1, is characterized in that, switched reluctance machines is stator, rotor double-salient-pole variable reluctance motor, and stator, rotor number of poles difference.
3. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 1, is characterized in that, stator, rotor form by silicon steel plate stacking, on rotor, without winding and permanent magnet, have winding on stator.
4. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 1, is characterized in that, energy-saving controller also comprises: control power supply, control power supply and be connected with control circuit and power circuit respectively, for providing power supply to control circuit and power circuit.
5. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 4, is characterized in that, power circuit also connects external power supply.
6. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 1, is characterized in that, operation display circuit provides switched reluctance machines rotational speed regulation button.
7. oil pumper dragging motor energy-saving control apparatus system as claimed in claim 1, is characterized in that, operation display circuit provides start/stop machine button, commutation button and electrical quantity display button one of them or combination in any.
8. the oil pumper dragging motor energy-saving control apparatus system as described in claim 1 to 7 any one, is characterized in that, operation display circuit is specifically for during higher than first threshold, reducing the rotating speed of switched reluctance machines in switched reluctance machines power output; During lower than Second Threshold, improve the rotating speed of switched reluctance machines in switched reluctance machines power output; First threshold is higher than Second Threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099194.0U CN203851071U (en) | 2014-03-05 | 2014-03-05 | Energy-saving control equipment system for dragging motor of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099194.0U CN203851071U (en) | 2014-03-05 | 2014-03-05 | Energy-saving control equipment system for dragging motor of oil pumping unit |
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| Publication Number | Publication Date |
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| CN203851071U true CN203851071U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420099194.0U Expired - Fee Related CN203851071U (en) | 2014-03-05 | 2014-03-05 | Energy-saving control equipment system for dragging motor of oil pumping unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888034A (en) * | 2014-03-05 | 2014-06-25 | 中国石油天然气股份有限公司 | Pumping unit dragging motor energy-saving control equipment system |
| CN104295273A (en) * | 2014-11-12 | 2015-01-21 | 中国石油天然气股份有限公司 | Oil pumping unit at mouth of well |
| WO2015131353A1 (en) * | 2014-03-05 | 2015-09-11 | 中国石油天然气股份有限公司 | Pumping unit drive motor energy-saving control device system |
-
2014
- 2014-03-05 CN CN201420099194.0U patent/CN203851071U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888034A (en) * | 2014-03-05 | 2014-06-25 | 中国石油天然气股份有限公司 | Pumping unit dragging motor energy-saving control equipment system |
| WO2015131353A1 (en) * | 2014-03-05 | 2015-09-11 | 中国石油天然气股份有限公司 | Pumping unit drive motor energy-saving control device system |
| CN104295273A (en) * | 2014-11-12 | 2015-01-21 | 中国石油天然气股份有限公司 | Oil pumping unit at mouth of well |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 |