CN203352177U - Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit - Google Patents
Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit Download PDFInfo
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- CN203352177U CN203352177U CN2013201080907U CN201320108090U CN203352177U CN 203352177 U CN203352177 U CN 203352177U CN 2013201080907 U CN2013201080907 U CN 2013201080907U CN 201320108090 U CN201320108090 U CN 201320108090U CN 203352177 U CN203352177 U CN 203352177U
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- power
- pumping unit
- power factor
- voltage regulating
- alternating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Control Of Electric Motors In General (AREA)
Abstract
Provided is a power factor dynamic-tracking voltage regulating and power saving device of a beam-pumping unit. The device is characterized in that an alternating-current voltage regulating device is connected with a power supply cabinet, a motor of the beam-pumping unit and a power factor detection feedback unit; the output voltage of the alternating-current voltage regulating device is controlled so power saving for the beam-pumping unit is achieved; a power saving device is connected between the power supply cabinet and the motor via cables; the alternating-current voltage regulating device in the power saving device is connected with the power factor detection feedback unit which is integrated with the alternating-current voltage regulating device; and after a preset target power factor value is compared with a real-time power factor value of the motor of the beam-pumping unit, the output voltage of the alternating-current voltage regulating device is controlled so that the power saving for the beam-pumping unit is achieved. The beneficial effects of the device are that different from a frequency converter, the device is capable of saving power for the beam-pumping unit operating at a low load state without changes of working conditions, and there are no pollution and side effects for a power grid.
Description
Technical field
The utility model relates to a kind of device of beam pumping unit economize on electricity.
Background technology
Beam pumping unit is generally all in low load condition operation, and efficiency is very low, is commonly called as " low load with strong power ".Low load poor efficiency makes the power that does work and need higher than reality by the active power of motor of oil extractor consumption, but also producing too much reactive power and the reactive current of numerical value far above active power and active current in relevant supply line, this shows the design power factor that the actual motion power factor of motor of oil extractor is moved under the normal load condition much smaller than power consumption equipment.
If the part active power of the active power needed higher than the reality acting is subtracted, then cause too much reactive current relevant supply line's line loss and transformer loss on transmission power to subtract, just can realize the integrated power-saving of oil pumper.The power factor that improves motor of oil extractor from the theory and practice proof is the effective ways of oil pumper economize on electricity.Suitably reduce supply power voltage and both can reduce active power, power consumption equipment power factor in the time of can improving again low load running.Make so control the motor of oil extractor alternating voltage effective technology measure that its variation adjustment of following the tracks of power factor is the economize on electricity of specific implementation oil pumper.
New method of the present utility model detects power factor exactly feedback unit and is connected with ac voltage regulator, controls the step-down of motor of oil extractor ac voltage regulator during lower than set point when power factor, produces power savings.
Generally adopting frequency converter aspect the economize on electricity of use pumping unit of well at present, but frequency converter not being realized the economize on electricity of the real meaning under constant duty, is in the situation that the change operating mode is economized on electricity.Due to exist frequency converter self power consumption, with and the high order harmonic component that produces make the reasons such as supply line's line loss and the increase of transformer loss on transmission, the fact is to use in a large number totally not necessarily economize on electricity of frequency converter.For example, while using frequency converter in a large number in oil field, the user is generally reflected and is not totally saved the electricity charge.
Motor of oil extractor realizes that the alternating current step-down also can realize as control element with controllable silicon and thyristor in the situation that do not change operating mode.But the voltage regulating mode of controllable silicon and thyristor is realized by the phase shift touch-control, the huge distortion of the electrical network end AC sine waveform that he causes both serious " pollution " electrical network, its harmonic wave (especially high order harmonic component) has caused huge line loss and the loss on transmission of the long range transmission networks in oil field, does not have overall energy-saving effect.
The mode that realizes ac buck also has the mode of other similar regulation and control saturable reactor etc., and this mode does not produce harmonic wave yet, be fully " clean '.But its regulation and control speed is unable to catch up with the strain rate effect demand that each jig frequency internal burden of oil pumper changes, be not suitable for being used in motor of beam-pumping unit energy-conservation on.
In perceptual motor supply line, shunt capacitor is also a kind of method of compensation power factor, but capacitor compensation also can't be followed the tracks of the power factor dynamic change of oil pumper fast.
The dynamic tracking power factor voltage regulation electricity-saving device that the utility model produces has received that the integrated power-saving rate is up to 50% good effect in the oil-field oil pumper application practice.
Summary of the invention
The utility model is used and substantially not to produce the ac voltage regulator of harmonic wave, such as using ripe contactless electron pressurizer as ac voltage regulator, in the situation that realizes not changing operating mode, to realize the motor of oil extractor economize on electricity, and electrical network is not polluted.Contactless electron hands over the intermodulation pressure device have quick response and adjust advantage, can realize fully the tracking of quick varying duty is regulated.
It is ac voltage regulator and powering shelf, motor of beam-pumping unit and power factor to be detected to feedback unit be connected that the utility model solves technical scheme that its technical problem adopts, controls the output voltage of ac voltage regulator and realizes that oil pumper economizes on electricity.
Specific practice is: the input that can detect in real time the power factor detection feedback unit of motor of oil extractor is connected with the test point of ac voltage regulator, the output that power factor is detected to feedback unit is connected to the Regulation Control end of ac voltage regulator, as shown in drawings.Between battery saving arrangement access motor of oil extractor and powering shelf after integrated.After the target setting power factor value, the output voltage that integrated battery saving arrangement just compares rear control ac voltage regulator according to the realtime power factor value of the target power factor value of setting and detection realizes that motor of oil extractor economizes on electricity.
The beneficial effects of the utility model are, dynamically follow the tracks of the power factor voltage regulation electricity-saving device and are different from frequency converter, can realize that the oil pumper to operating under low load condition effectively economizes on electricity in the situation that do not change operating mode, and not pollute the side effect of electrical network.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the composition structure of the utility model device.
In figure: 1. ac voltage regulator, 2. power factor detects feedback unit, and 3, powering shelf, 4. motor of beam-pumping unit.
Embodiment
Dynamically follow the tracks of power factor voltage regulation electricity-saving device product according to the beam pumping unit of having applied, with reference to accompanying drawing, embodiment is as follows:
The power factor test point of ac voltage regulator (1) is connected with the input/output terminal that power factor detects feedback unit (2) with Regulation Control point.Respectively integrated good dynamic tracking power factor voltage regulation electricity-saving device (1) is connected to powering shelf (3) and motor of beam-pumping unit (4).The output voltage that ac voltage regulator is compared to rear control ac voltage regulator according to the realtime power factor value of the target power factor value of setting and detection realizes that oil pumper economizes on electricity.
Claims (1)
1. a beam pumping unit is dynamically followed the tracks of the power factor voltage regulation electricity-saving device, it is characterized in that: ac voltage regulator and powering shelf, motor of beam-pumping unit and power factor are detected to feedback unit and be connected, control the output voltage of ac voltage regulator and realize the oil pumper economize on electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201080907U CN203352177U (en) | 2013-03-11 | 2013-03-11 | Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201080907U CN203352177U (en) | 2013-03-11 | 2013-03-11 | Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352177U true CN203352177U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201080907U Expired - Fee Related CN203352177U (en) | 2013-03-11 | 2013-03-11 | Power factor dynamic-tracking voltage regulating and power saving device of beam-pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612093A (en) * | 2015-10-23 | 2017-05-03 | 中国石油天然气股份有限公司 | Control system and method for permanent magnet submersible linear motor |
| CN109855144A (en) * | 2019-04-02 | 2019-06-07 | 浙江帅康电气股份有限公司 | A kind of control method of frequency conversion range hood, control system and frequency conversion range hood |
-
2013
- 2013-03-11 CN CN2013201080907U patent/CN203352177U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612093A (en) * | 2015-10-23 | 2017-05-03 | 中国石油天然气股份有限公司 | Control system and method for permanent magnet submersible linear motor |
| CN109855144A (en) * | 2019-04-02 | 2019-06-07 | 浙江帅康电气股份有限公司 | A kind of control method of frequency conversion range hood, control system and frequency conversion range hood |
| CN109855144B (en) * | 2019-04-02 | 2024-02-13 | 浙江帅康电气股份有限公司 | Control method and control system of variable-frequency range hood and variable-frequency range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Bumin Document name: Notification of Termination of Patent Right |
|
| 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: 20131218 Termination date: 20160311 |