CN102064646A - Low-speed direct-drive permanent magnet synchronous submersible motor - Google Patents
Low-speed direct-drive permanent magnet synchronous submersible motor Download PDFInfo
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- CN102064646A CN102064646A CN2010106146827A CN201010614682A CN102064646A CN 102064646 A CN102064646 A CN 102064646A CN 2010106146827 A CN2010106146827 A CN 2010106146827A CN 201010614682 A CN201010614682 A CN 201010614682A CN 102064646 A CN102064646 A CN 102064646A
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Abstract
The invention relates to a low-speed direct-drive permanent magnet synchronous submersible motor comprising a rotor shaft, a stator and a rotor, wherein the rotor is fixed on the rotor shaft; the stator is arranged outside the rotor and encircles the rotor; the stator is provided with eighteen stator slots; a winding of the stator is a few-slot multi-stage fractional-slot double-layer short-distance winding; and the stage number of the rotor is 14. In the invention, the rotating speed of the low-speed direct-drive permanent magnet synchronous submersible motor is 428 turns/minute, thereby omitting a speed reducer of a common submersible electric pump unit and directly driving a submersible screw pump; and the low-speed direct-drive permanent magnet synchronous submersible motor can be used by combining with a frequency conversion control system, thereby directly driving the submersible screw pumps at different rotating speeds; and in addition, the low-speed direct-drive permanent magnet synchronous submersible motor can be widely used for the power equipment of the submersible electric pump unit positioned in an oil well of an oil field.
Description
Technical field
The present invention relates to a kind of low-speed direct driving permanent-magnet synchronous submersible electric machine with oil that can directly drive submersible screw pump underground work.
Background technology
The screw pump unit is mainly used in high viscosity, height degree of solidifying, height and contains husky oil well, rotating speed is lower, and the submersible electric machine with oil that is applied to oil field oil-extracting screw pump unit at present mainly is asynchronous machine and general permanent-magnet synchronous submersible electric machine with oil, its common ground is: rotating speed is too high, do not satisfy the speed requirement of screw pump unit, can only just can reach the rotating speed that requires of screw pump by the decelerator speed governing later on, so not only increased the whole mechanical loss of unit, influence the unit gross efficiency, and increased the failure rate and the maintenance frequency of unit.
At this problem, the present invention has designed a kind of low-speed direct driving permanent-magnet synchronous submersible electric machine with oil of directly drive screw pump work.
Summary of the invention
To achieve these goals, low-speed direct driving permagnetic synchronous motor of the present invention, a kind of low-speed direct driving permanent-magnet synchronous submersible electric machine with oil comprises: armature spindle, stator and rotor, described rotor is fixed on the armature spindle; Stator is arranged on outside the rotor, drives 18 stator slots on the described stator, and described rotor progression is 14 utmost points; Described motor is multipole for few groove, fractional-slot and double-deck short distance winding;
Further, according to submersible electric machine with oil described in the claim 1, it is characterized by, described rotor is by several minutes rotor and be arranged on the adjacent minute bearing between the rotor and form, rotor comprised rotor core, permanent magnet and did not have the latitude band in described minute, rotor core is a column structure, is fixed on the outer surface of described armature spindle, and permanent magnet is fixed on the positive camber of rotor core; The curing of permanent magnet positive camber has or not the latitude band.
Further, be arranged alternately 7 pairs 14 along described periphery of rotor and be listed as N, S permanent magnet; The permanent magnet of two neighboring pole is staggered; Closely arrange between the adjacent permanent magnet.
Further, described permanent magnet directly is fixed on the described rotor core.
Further, described stator slot is the groove of remaining silent.
The rotor of motor of the present invention adopts permanent magnet excitation, totally 14 utmost points, and motor speed is 428 rev/mins.Use designed motor of the present invention, can save the decelerator in the general Electric Submersible Pump Unit, be directly used in the driving submersible screw pump, and be used in combination with frequency-changing control system, can realize stepless time adjustment, can drive the submersible screw pump of different rotating speeds requirement, have very big practicality, can be widely used in the power disposition of Electric Submersible Pump Unit in the oilfield.
Description of drawings
Fig. 1 is a whole generator structural representation of the present invention;
Fig. 2-stator structure schematic diagram of the present invention;
Fig. 3-stator winding schematic diagram of the present invention;
Fig. 4-of the present invention minute rotor structure schematic diagram;
The E of Fig. 5-Fig. 4 is to view.
Embodiment
As shown in fig. 1, disclosed motor comprises among the present invention: armature spindle 6, stator 4 and rotor 7.Rotor 7 is arranged on the armature spindle 6, and stator 4 is arranged on outside the rotor 7, with its encirclement.
Shown in Fig. 2,3, drive 18 stator slots 51 on the stator 4, stator slot 51 is the groove of remaining silent.The winding 5 of stator 4 adopts that few groove is multipole, fractional-slot and double-deck short distance winding.Adopt the multipole low-speed direct driving operation that is implemented in submersible electric machine with oil of few groove; Adopt double-deck short distance effectively to reduce harmonic wave, improve the waveform of motor, reduce additional harmonic loss, raise the efficiency.
Low-speed direct driving submersible electric machine with oil among the present invention adopts few multipole mode of groove: 18 grooves, 14 utmost points, every extremely every be mark less than a groove, all have the coil of similar number to be composed in series so can not each utmost point be organized mutually.So each coil groups must be made up of each unequal coil number.The size coil groups must be evenly distributed along the iron core circumference, otherwise motor can not run well.And rotor progression is increased to 14, to realize the slowspeed machine running.
Claims (5)
1. low-speed direct driving permanent-magnet synchronous submersible electric machine with oil is characterized by: comprising: armature spindle, stator and rotor, and described rotor is fixed on the armature spindle; Stator is arranged on outside the rotor described rotor is surrounded, and drives 18 stator slots on the described stator, and described rotor progression is 14 utmost points; Described motor is multipole for few groove, fractional-slot and double-deck short distance winding.
2. according to submersible electric machine with oil described in the claim 1, it is characterized by, described rotor is by several minutes rotor and be arranged on the adjacent minute bearing between the rotor and form, rotor comprised rotor core, permanent magnet and did not have the latitude band in described minute, rotor core is a column structure, be fixed on the outer surface of described armature spindle, permanent magnet is fixed on the positive camber of rotor core; The curing of permanent magnet positive camber has or not the latitude band.
3. according to submersible electric machine with oil described in the claim 2, it is characterized by, be arranged alternately 7 pairs 14 along described periphery of rotor and be listed as N, S permanent magnet; The permanent magnet of two neighboring pole is staggered; Closely arrange between the adjacent permanent magnet.
4. submersible electric machine with oil according to claim 2 is characterized by, and described permanent magnet directly is fixed on the described rotor core.
5. according to submersible electric machine with oil described in the claim 1, it is characterized by, described stator slot is the groove of remaining silent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106146827A CN102064646A (en) | 2010-12-30 | 2010-12-30 | Low-speed direct-drive permanent magnet synchronous submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106146827A CN102064646A (en) | 2010-12-30 | 2010-12-30 | Low-speed direct-drive permanent magnet synchronous submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102064646A true CN102064646A (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106146827A Pending CN102064646A (en) | 2010-12-30 | 2010-12-30 | Low-speed direct-drive permanent magnet synchronous submersible motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102064646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633755A (en) * | 2013-11-21 | 2014-03-12 | 中国石油天然气股份有限公司 | Submersible pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacturing method thereof |
| CN113162355A (en) * | 2021-04-22 | 2021-07-23 | 苏州大学 | Permanent magnet synchronous submersible motor based on screw pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218324A (en) * | 1997-11-21 | 1999-06-02 | 哈尔滨工业大学 | Permanent magnet low speed synchronous motor with self starting impulsive magnetic field |
| JP2002262487A (en) * | 2001-02-28 | 2002-09-13 | Hitachi Ltd | Power generation system and rotating electric machine |
| CN1459911A (en) * | 2002-05-15 | 2003-12-03 | 株式会社日立制作所 | Permanent magnet type rotary electric machine |
| CN2872720Y (en) * | 2005-08-25 | 2007-02-21 | 天津市油田采油成套设备有限公司 | Large-power oil-submersible electric motor |
| CN101610010A (en) * | 2009-07-18 | 2009-12-23 | 赣州发电设备成套制造有限公司 | High efficiency energy-saving rare earth permanent-magnet synchronous motor |
-
2010
- 2010-12-30 CN CN2010106146827A patent/CN102064646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218324A (en) * | 1997-11-21 | 1999-06-02 | 哈尔滨工业大学 | Permanent magnet low speed synchronous motor with self starting impulsive magnetic field |
| JP2002262487A (en) * | 2001-02-28 | 2002-09-13 | Hitachi Ltd | Power generation system and rotating electric machine |
| CN1459911A (en) * | 2002-05-15 | 2003-12-03 | 株式会社日立制作所 | Permanent magnet type rotary electric machine |
| CN2872720Y (en) * | 2005-08-25 | 2007-02-21 | 天津市油田采油成套设备有限公司 | Large-power oil-submersible electric motor |
| CN101610010A (en) * | 2009-07-18 | 2009-12-23 | 赣州发电设备成套制造有限公司 | High efficiency energy-saving rare earth permanent-magnet synchronous motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633755A (en) * | 2013-11-21 | 2014-03-12 | 中国石油天然气股份有限公司 | Submersible pump direct-drive ultra-slender concentrated winding permanent magnet motor and manufacturing method thereof |
| CN113162355A (en) * | 2021-04-22 | 2021-07-23 | 苏州大学 | Permanent magnet synchronous submersible motor based on screw pump |
| CN113162355B (en) * | 2021-04-22 | 2023-06-23 | 苏州大学 | A permanent magnet synchronous submersible motor based on screw pump |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: ONE-UP (BEIJING) PETROLEUM ENGINEERING TECHNOLOGY Free format text: FORMER OWNER: NUOXINWEI (BEIJING) SCIENCE AND TECHNOLOGY DEVELOPMENT CO. LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 163316 HIGH-TECH. ZONE, DAQING CITY, HEILONGJIANG PROVINCE TO: 163316 JIANSHE ROAD, HIGH-TECH. ZONE, DAQING CITY, HEILONGJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110627 Address after: 163316 Daqing hi tech Zone, Heilongjiang, Jianshe Road Applicant after: Dafeng Oil Field Tech Co., Ltd., Daqing Co-applicant after: Wanaopu (Beijing) Petroleum Engineering Technology Development Research Institute Co., Ltd. Address before: 163316 hi tech Zone, Heilongjiang, Daqing Applicant before: Dafeng Oil Field Tech Co., Ltd., Daqing Co-applicant before: North Winner (Beijing) Technology Development Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110518 |