CN107911049A - Brushless motor energy feedback speed regulation control system for oil pumping unit - Google Patents
Brushless motor energy feedback speed regulation control system for oil pumping unit Download PDFInfo
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- CN107911049A CN107911049A CN201710996419.0A CN201710996419A CN107911049A CN 107911049 A CN107911049 A CN 107911049A CN 201710996419 A CN201710996419 A CN 201710996419A CN 107911049 A CN107911049 A CN 107911049A
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- unit
- control unit
- electric machine
- energy feedback
- speed
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- 238000005086 pumping Methods 0.000 title abstract description 27
- 230000005611 electricity Effects 0.000 claims description 18
- 239000000523 sample Substances 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 241000208340 Araliaceae Species 0.000 claims description 7
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 7
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 7
- 235000008434 ginseng Nutrition 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010977 unit operation 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/28—Arrangements for controlling current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to the technical field of oil extraction engineering, in particular to an energy feedback speed regulation control system of a brushless motor for an oil pumping unit. The invention solves the problem that the 'reverse power generation' generated in the operation process of the pumping unit can not be fully utilized to cause the increase of the operation energy consumption. The system is composed of a public power grid (1), a power input control unit (2), a brushless motor (3), a rotating speed sensor (4), a power output regulation and control unit (5), an embedded controller (6), a screen display control unit (7) and an energy feedback unit (8). The system adopts an embedded digital regulation and control technology, automatically regulates and controls the operation speed of the pumping unit, and thoroughly absorbs the energy of the reverse power generation generated in the operation process of the pumping unit.
Description
Technical field
The present invention relates to technical field of oil production engineering, particularly belongs to a kind of brushless electric machine energy feedback speed governing control used for oil extractor
System processed.
Background technology
At present, beam pumping unit necessary electromotor in oil field need to such as realize electric stepless speed regulation, be usually used with inverter
For the frequency converter and nonshared control unit of core component, its brake unit uses resistance dynamic braking scheme, though cause pumping unit
It can so realize electric stepless speed regulation, but because " generating electricity " is braked resistance to add the fortune of pumping unit form of thermal energy consumes
Row energy consumption.
The content of the invention
The purpose of the present invention is design one kind can the adjusting and optimizing pumping unit speed of service and recycling oil pumping in real time
A kind of brushless electric machine energy feedback speed-adjusting and control system used for oil extractor of the power generation produced in machine operational process.
To achieve these goals, the present invention adopts the following technical scheme that：A kind of brushless electric machine energy feedback used for oil extractor
Speed-adjusting and control system, it is regulated and controled single by public electric wire net, power input control unit, brushless electric machine, speed probe, power output
Member, embedded controller, screen display manipulation unit, energy feedback unit composition；Wherein public electric wire net and power input control unit
Connection, with energy feedback unit with being connected, power input control unit is connected public electric wire net with brushless electric machine, power input control
Unit is connected with embedded controller, and brushless electric machine is connected with speed probe, speed probe and power output regulation and control unit
Connection, power output regulation and control unit are connected with embedded controller, and power output regulation and control unit is connected with energy feedback unit, embedding
Enter formula controller to be connected with screen display manipulation unit.
Power output regulates and controls unit and is made of rectifier, electricity ginseng sensor, chopper, filter capacitor；Embedded controller
The data of speed probe and electricity ginseng sensor feedback are received, computing is handled by the embedded program of embedded controller, is sent
Rotation speed regulating and controlling instructs, and regulation and control chopper carries out Amplitude Modulation High Frequency control to the DC voltage of rectified device " friendship-straight " rectification, changes
The electric current of the output winding of brushless electric machine, realizes the regulation and control of brushless electric machine running speed.
Energy feedback unit is made of SCR inverter, frequency plot controller, wave filter；In embedded controller
It is uniformly controlled down, 50HZ industrial-frequency alternating currents are delivered to brushless electric machine, the slip of brushless electric machine output by power input control unit
Alternating current and regenerative alternate electricity carry out " hand over-straight " rectification by the rectifier of power output regulation and control unit, in energy feedback unit
SCR inverter carry out " straight-hand over " inversion to direct current, the alternating current of inversion is in frequency plot controller and wave filter
It is transformed into 50HZ industrial frequency AC electricity outputs under integrated treatment, is recycled to public electric wire net, realizes the feedback of energy.
Compared with the prior art the present invention has the following advantages
1）The present invention can realize the soft start of pumping unit, low pumping unit transmission mechanism and fuselage, reduction box, rod string
Deng vibration and wear, improve the security performance of pumping unit, extend the service life of associated components.
2）The present invention uses embedded digital control technique, and adjust automatically optimization pumping unit rotating speed, thoroughly absorbs pumping unit
The energy that falls to generate electricity produced in operational process, realizes the speed governing operation and energy feedback of pumping unit.
3）There is the present invention SCR inverter to be designed to that " one drags with multiple power outputs regulation and control unit combination accessory
It is more " energy feedback speed-adjusting and control system, energy-saving speed regulating system support is carried out exclusively for more pumping units of platform well, equipment can be reduced
Input cost.
Brief description of the drawings：Fig. 1：Schematic structural view of the invention；Fig. 2：Speed-adjusting and control system schematic diagram of the present invention；Fig. 3：The present invention
In pumping unit scheme of installation.
In figure：1. public electric wire net, 2. power input control units, 3. brushless electric machines, 4. speed probes, 5. power outputs
Regulate and control unit, 51. rectifiers, 52. electricity ginseng sensors, 53. choppers, 54. filter capacitors, 6. embedded controllers, 7. screen displays
Manipulate unit, 8. energy feedback units, 81. SCR inverters, 82. frequency plot controllers, 83. wave filters.
Embodiment：The present invention is further described below in conjunction with attached drawing, it is by public electric wire net 1, power input
Control unit 2, brushless electric machine 3, speed probe 4, power output regulation and control unit 5, embedded controller 6, screen display manipulation unit
7th, energy feedback unit 8 forms；Wherein public electric wire net 1 is connected with power input control unit 2, public electric wire net 1 and energy feedback
With being connected, power input control unit 2 is connected unit 8 with brushless electric machine 3, power input control unit 2 and embedded controller 6
It is connected, brushless electric machine 3 is connected with speed probe 4, and speed probe 4 is connected with power output regulation and control unit 5, power output tune
Control unit 5 is connected with embedded controller 6, and power output regulation and control unit 5 is connected with energy feedback unit 8, embedded controller 6
It is connected with screen display manipulation unit 7.
Power output regulates and controls unit 5 and is made of rectifier 51, electricity ginseng sensor 52, chopper 53, filter capacitor 54；It is embedded
Formula controller 6 receives the data that speed probe 4 and electricity ginseng sensor 52 are fed back, and passes through the embedded program of embedded controller 6
Computing is handled, sends rotation speed regulating and controlling instruction, regulation and control chopper 53 carries out the DC voltage of rectified device 51 " friendship-straight " rectification high
Frequency amplitude adjustment control, changes the electric current of the output winding of brushless electric machine 3, realizes the regulation and control of 3 running speed of brushless electric machine.
Energy feedback unit 8 is made of SCR inverter 81, frequency plot controller 82, wave filter 83；Embedded
Under being uniformly controlled of controller 6,50HZ industrial-frequency alternating currents are delivered to brushless electric machine 3, brushless electric machine by power input control unit 2
The slip alternating current and regenerative alternate electricity of 3 outputs carry out " friendship-straight " rectification by the rectifier 51 of power output regulation and control unit 5,
SCR inverter 81 in energy feedback unit 8 carries out direct current " straight-to hand over " inversion, and the alternating current of inversion is in frequency plot
It is transformed into 50HZ industrial frequency AC electricity outputs under the integrated treatment of controller 82 and wave filter 83, is recycled to public electric wire net 1, realizes energy
The feedback of amount.
Embedded special-purpose software built in the embedded controller 6, relies on CPU main program chips, concentrates to system electricity
The signals such as pressure, electric current, frequency, rotating speed are detected sampling, and processing computing is carried out by plug-in, send rotation speed regulating and controlling instruction
With frequency plot control signal, pumping unit plant-grid connection, torque rotary speed adjusting, energy-saving run and characteristic optimizing are realized.
During field application, which is installed on pumping unit, power input control unit 2 is connected with public electric wire net 1,
By speed probe peace 4 on 3 axis of brushless electric machine, and it is connected with power output regulation and control unit 5, energy feedback unit 8 and public affairs
Common-battery net 1 connects.Under being uniformly controlled of the CPU microprocessor main program of embedded controller 6, power input control unit 2
50HZ power currents are delivered to brushless electric machine 3, power output regulates and controls the frequency that the rectifier 51 of unit 5 exports brushless electric machine 3
The alternating current of rate change carries out " hand over-straight " rectification, the SCR inverter 81 of energy feedback unit 8 direct current is carried out " it is straight-
The inversion of friendship ", the alternating current of inversion are transformed into 50HZ power frequencies under the integrated treatment of frequency plot controller 82 and wave filter 83
Electricity output is exchanged, public electric wire net 1 is recycled to, realizes the feedback of energy.
Embedded controller 6 receives the transmission signal of speed probe 4 and electricity ginseng sensor 52, is manipulated according to screen display single
The jig frequency of the setting of member 7, handles computing by the embedded program of embedded controller 6, sends rotation speed regulating and controlling instruction, regulate and control chopper
The DC voltage of 53 pairs of rectified device 51 " friendship-straight " rectifications carries out Amplitude Modulation High Frequency control, changes the output winding of brushless electric machine 3
Electric current, realize the regulation and control of 3 running speed of brushless electric machine；In pumping unit operational process, each cycle carry out signal feedback and
Calculating, adjust automatically optimization pumping unit operation characteristic, thoroughly absorbs the generated energy that falls produced in pumping unit operational process, so that
Ensure that pumping unit is run in maximum energy-saving state, optimal mechanical characteristic, improve pumping unit performance driving economy and reliability, and
Extend the service life of pumping unit transmission parts.
In addition, the present invention can set a SCR inverter 81 and multiple power outputs regulation and control 5 combination accessory of unit
" one drag more " energy feedback speed-adjusting and control system is counted into, energy-saving speed regulating system supports are carried out exclusively for more pumping units of platform well,
Equipment investment cost can be reduced.
Claims (3)
- A kind of 1. brushless electric machine energy feedback speed-adjusting and control system used for oil extractor, it is characterised in that：It is by public electric wire net（1）, work( Rate input control unit（2）, brushless electric machine（3）, speed probe（4）, power output regulation and control unit（5）, embedded controller （6）, screen display manipulation unit（7）, energy feedback unit（8）Composition；Wherein public electric wire net（1）With power input control unit（2） Connection, public electric wire net（1）With energy feedback unit（8）Connection, power input control unit（2）With brushless electric machine（3）Connection, work( Rate input control unit（2）With embedded controller（6）It is connected, brushless electric machine（3）With speed probe（4）Connection, rotating speed pass Sensor（4）Regulate and control unit with power output（5）Connection, power output regulation and control unit（5）With embedded controller（6）Connection, work( Rate output regulation and control unit（5）With energy feedback unit（8）Connection, embedded controller（6）Unit is manipulated with screen display（7）Connection.
- A kind of 2. brushless electric machine energy feedback speed-adjusting and control system used for oil extractor according to claim 1, it is characterised in that： Power output regulates and controls unit（5）By rectifier（51）, electricity ginseng sensor（52）, chopper（53）, filter capacitor（54）Composition；It is embedding Enter formula controller（6）Receive speed probe（4）Join sensor with electricity（52）The data of feedback, pass through embedded controller（6） Embedded program processing computing, send rotation speed regulating and controlling instruction, regulate and control chopper（53）To rectified device（51）" hand over-straight " rectification DC voltage carries out Amplitude Modulation High Frequency control, changes brushless electric machine（3）Output winding electric current, realize brushless electric machine（3） The regulation and control of running speed.
- A kind of 3. brushless electric machine energy feedback speed-adjusting and control system used for oil extractor according to claim 1, it is characterised in that： Energy feedback unit（8）By SCR inverter（81）, frequency plot controller（82）, wave filter（83）Composition；Embedded Controller（6）Being uniformly controlled under, power input control unit（2）50HZ industrial-frequency alternating currents are delivered to brushless electric machine（3）, nothing Brush motor（3）Slip alternating current and the regenerative alternate electricity of output are by power output regulation and control unit（5）Rectifier（51）Carry out " hand over-straight " rectification, energy feedback unit（8）In SCR inverter（81）" straight-to hand over " inversion is carried out to direct current, inversion Alternating current is in frequency plot controller（82）And wave filter（83）Integrated treatment under be transformed into 50HZ industrial frequency AC electricity outputs, return Send to public electric wire net（1）, realize the feedback of energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996419.0A CN107911049A (en) | 2017-10-24 | 2017-10-24 | Brushless motor energy feedback speed regulation control system for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996419.0A CN107911049A (en) | 2017-10-24 | 2017-10-24 | Brushless motor energy feedback speed regulation control system for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107911049A true CN107911049A (en) | 2018-04-13 |
Family
ID=61840739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710996419.0A Pending CN107911049A (en) | 2017-10-24 | 2017-10-24 | Brushless motor energy feedback speed regulation control system for oil pumping unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN107911049A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488581A (en) * | 2018-09-12 | 2019-03-19 | 中国石油天然气股份有限公司 | One-machine double-well mutual-balance type direct-drive oil pumping unit control system and oil pumping device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935522A (en) * | 1974-01-08 | 1976-01-27 | Tsay Peter Wen Tien | Control device for the electric fan |
| US20040061469A1 (en) * | 2002-09-24 | 2004-04-01 | Honda Giken Kogyo Kabushiki Kaisha | Controller for DC brushless motor |
| CN1835380A (en) * | 2005-03-15 | 2006-09-20 | 北京华拿东方能源科技有限公司 | Medium-voltage motor chopper speed governing digital intelligent controlling system having stalling protection |
| CN202586867U (en) * | 2011-12-20 | 2012-12-05 | 东北大学 | Brushless double-fed motor control device |
| CN102931890A (en) * | 2011-08-11 | 2013-02-13 | 周顺新 | Control system for driving a plurality of motors by using inverter bridge to change input power simultaneously along with load and rotating speed |
| CN203482133U (en) * | 2013-08-12 | 2014-03-12 | 四川极度电控***制造有限责任公司 | IGBT type cascade speed regulation system |
-
2017
- 2017-10-24 CN CN201710996419.0A patent/CN107911049A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935522A (en) * | 1974-01-08 | 1976-01-27 | Tsay Peter Wen Tien | Control device for the electric fan |
| US20040061469A1 (en) * | 2002-09-24 | 2004-04-01 | Honda Giken Kogyo Kabushiki Kaisha | Controller for DC brushless motor |
| CN1835380A (en) * | 2005-03-15 | 2006-09-20 | 北京华拿东方能源科技有限公司 | Medium-voltage motor chopper speed governing digital intelligent controlling system having stalling protection |
| CN102931890A (en) * | 2011-08-11 | 2013-02-13 | 周顺新 | Control system for driving a plurality of motors by using inverter bridge to change input power simultaneously along with load and rotating speed |
| CN202586867U (en) * | 2011-12-20 | 2012-12-05 | 东北大学 | Brushless double-fed motor control device |
| CN203482133U (en) * | 2013-08-12 | 2014-03-12 | 四川极度电控***制造有限责任公司 | IGBT type cascade speed regulation system |
Non-Patent Citations (2)
| Title |
|---|
| 张肃文主编: "《高频电子线路下册（第一分册）》", 31 December 1979 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488581A (en) * | 2018-09-12 | 2019-03-19 | 中国石油天然气股份有限公司 | One-machine double-well mutual-balance type direct-drive oil pumping unit control system and oil pumping device |
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Application publication date: 20180413 |
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