CN112953154A - Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation - Google Patents
Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation Download PDFInfo
- Publication number
- CN112953154A CN112953154A CN202110453821.0A CN202110453821A CN112953154A CN 112953154 A CN112953154 A CN 112953154A CN 202110453821 A CN202110453821 A CN 202110453821A CN 112953154 A CN112953154 A CN 112953154A
- Authority
- CN
- China
- Prior art keywords
- stator
- outer stator
- distributed
- armature winding
- inner stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 30
- 230000004907 flux Effects 0.000 title claims abstract description 19
- 238000010248 power generation Methods 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 36
- 230000005292 diamagnetic effect Effects 0.000 claims abstract description 14
- 238000003475 lamination Methods 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000010030 laminating Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000005389 magnetism Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/06—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving flux distributors, and both coil systems and magnets stationary
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a stator permanent magnet transverse flux linear generator for direct drive type wave power generation, which comprises an outer stator, wherein the outer stator is hollow, an inner stator is sleeved in the outer stator, a composite magnetic field is formed between the inner stator and the outer stator, rotors distributed in an array mode are arranged between the inner stator and the outer stator, and the rotors reciprocate along a straight line to cut magnetic induction lines between the inner stator and the outer stator. The generator can effectively block eddy current and is simple to process by arranging the outer stator and the inner stator in an axial lamination structure, the alternating permanent magnets are fixed on the inner stator, the armature winding is arranged on the outer stator, and the rotors with the magnetic sheets and the diamagnetic sheets distributed in a staggered manner are arranged, so that the consumption of the permanent magnets can be reduced and the utilization rate of the permanent magnets can be improved in a long-stroke occasion.
Description
Technical Field
The invention relates to the field of direct-drive wave-activated generators, in particular to a stator permanent magnet transverse magnetic flux linear generator for direct-drive wave-activated power generation.
Background
Wave energy can be converted into electric energy through different wave power generation devices, wherein the direct drive type wave power generation device has a simpler structure and higher efficiency due to the fact that intermediate transmission parts are reduced, and is considered to have a wider development prospect. The linear generator is widely applied to a direct drive type wave power generation system, and the current research focus is to improve the power density of the linear generator. The transverse flux permanent magnet linear motor is one of variable reluctance permanent magnet linear motors, the flux direction is perpendicular to the movement direction, and the power density of the motor can be improved by increasing the pole pair number. The transverse flux permanent magnet linear motor is suitable for low-speed direct-drive occasions, such as direct-drive wave power generation.
The traditional transverse flux motor is basically of a rotor permanent magnet type, namely permanent magnets are positioned on a rotor, three-phase symmetric back electromotive force is obtained by changing the arrangement of the permanent magnets, and the rotor permanent magnet type can obtain larger flux linkage, but is not suitable for long-stroke occasions. In a long-stroke occasion, the permanent magnet consumption is greatly increased along with the increase of the length of the rotor, the cost of the motor is increased, and the permanent magnet utilization rate is very low.
Disclosure of Invention
The invention aims to provide a stator permanent magnet transverse flux linear generator for direct drive type wave power generation, which can effectively block eddy current and is simple to process by arranging an outer stator and an inner stator in an axial lamination structure.
The purpose of the invention can be realized by the following technical scheme:
a stator permanent magnet transverse flux linear generator for direct drive type wave power generation comprises an outer stator, wherein the outer stator is hollow, an inner stator is sleeved in the outer stator, a composite magnetic field is formed between the inner stator and the outer stator, rotors distributed in an array mode are arranged between the inner stator and the outer stator, and the rotors reciprocate linearly to cut magnetic induction lines between the inner stator and the outer stator.
The outer stator comprises an outer stator core and an armature winding, and the outer stator core is formed by laminating outer stator core rings distributed in an array along axial direction.
The inner stator comprises an inner stator iron core, wherein S-level permanent magnets and N-level permanent magnets are fixed on the outer wall of the inner stator iron core and distributed in an array mode, and the S-level permanent magnets and the N-level permanent magnets are arranged in a double-N double-S alternating mode, namely N-N-S-S-N-N ….
The inner stator iron core is formed by laminating the inner stator iron core ring laminations which are distributed in an array.
The rotor is composed of magnetic sheets distributed in an array and diamagnetic sheets distributed in an array at intervals.
Furthermore, the inner wall of the outer stator iron core ring is provided with first groove teeth distributed in an array manner, the first groove teeth between the rings correspond up and down in the lamination and lamination process of the outer stator iron core ring, and outer stator grooves are formed between two adjacent rows of the first groove teeth.
Furthermore, the armature winding is sleeved on the first slot tooth, the armature winding comprises a phase A armature winding, a phase B armature winding and a phase C armature winding, the phase A armature winding, the phase B armature winding and the phase C armature winding are symmetrically distributed, the phase A armature winding, the phase B armature winding and the phase C armature winding are distributed in a staggered mode, and the adjacent two-phase armature winding is arranged in the same outer stator slot.
Furthermore, the laminated thickness of the inner stator iron core is the same as that of the outer stator iron core, and twelve S-level permanent magnets and N-level permanent magnets are provided.
Further, the number of the movers is twenty-four, the length of the magnetic sheet is equal to that of the diamagnetic sheet, the length of the magnetic sheet is defined as a polar distance, the dislocation arrangement of each mover is different, and the mover dislocation of the adjacent phase is set to be 2/3 polar distances, so that three-phase symmetric counter electromotive force is obtained.
When the rotor reciprocates along a straight line, the magnetic sheets and the diamagnetic sheets between the outer stator and the inner stator change at intervals, so that a sinusoidal magnetic chain is formed, and three-phase sinusoidal counter electromotive force is obtained.
Furthermore, the outer stator and the inner stator are both cylindrical, and the rotor is in a strip arc shape.
The invention has the beneficial effects that:
1. the generator has the advantages that the outer stator and the inner stator are arranged to be in the axial lamination structure, so that the eddy current can be effectively blocked, and the processing is simple;
2. the generator has the advantages that the alternating permanent magnets are fixed on the inner stator, the armature winding is arranged on the outer stator, and the rotors with the magnetic sheets and the diamagnetic sheets distributed in a staggered manner are arranged, so that the consumption of the permanent magnets can be reduced and the utilization rate of the permanent magnets can be improved in a long-stroke occasion;
3. compared with a rotor consisting of permanent magnets, the rotor consisting of the magnetic sheets and the diamagnetic sheets is easy to process.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a top view of a generator of the present invention;
fig. 2 is a schematic diagram of the generator structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A stator permanent magnet transverse flux linear generator for direct drive type wave power generation is disclosed, as shown in fig. 1 and fig. 2, the generator comprises an outer stator 1, the inner part of the outer stator 1 is hollow, an inner stator 2 is sleeved in the outer stator 1, a composite magnetic field is formed between the inner stator 2 and the outer stator 1, rotors 3 distributed in an array mode are arranged between the inner stator 2 and the outer stator 1, the rotors 3 move linearly in a reciprocating mode to cut magnetic induction lines between the inner stator 2 and the outer stator 1, the outer stator 1 and the inner stator 2 are both cylindrical, and the rotors 3 are in a strip arc shape.
The outer stator 1 comprises an outer stator core, the outer stator core is formed by laminating outer stator core rings 11 distributed in an array along an axial direction, first slot teeth 12 distributed in an array are arranged on the inner wall of each outer stator core ring 11, the first slot teeth 12 between the rings correspond to each other up and down in the lamination laminating process, and outer stator slots 13 are formed between every two adjacent rows of the first slot teeth 12.
The outer stator 1 further comprises an armature winding 14, the armature winding 14 is sleeved on the first slot tooth 12, the armature winding 14 comprises a symmetrically distributed A-phase armature winding, a symmetrically distributed B-phase armature winding and a symmetrically distributed C-phase armature winding, the A-phase armature winding, the B-phase armature winding and the C-phase armature winding are distributed in a staggered mode, and adjacent two-phase armature windings are arranged in the same outer stator slot 13.
The inner stator 2 comprises an inner stator iron core, the inner stator iron core is formed by laminating and laminating inner stator iron core rings 21 distributed in an array mode, the laminating thickness of the inner stator iron core is the same as that of the outer stator iron core, S-level permanent magnets 22 distributed in an array mode and N-level permanent magnets 23 distributed in an array mode are fixed on the outer wall of the inner stator iron core, the S-level permanent magnets 22 and the N-level permanent magnets 23 are twelve, the S-level permanent magnets 22 and the N-level permanent magnets 23 are double-N and double-S in an alternating mode, and therefore N-N-S-S-N-N … is formed.
The number of the movers 3 is twenty-four, the movers 3 are formed by arranging the magnetic sheets 31 distributed in an array and the diamagnetic sheets 32 distributed in an array at intervals, the length of the magnetic sheets 31 is equal to that of the diamagnetic sheets 32, the length of the magnetic sheets 31 is defined as a polar distance, the staggered arrangement of each mover 3 is different, and the mover staggered arrangement of adjacent phases is 2/3 polar distances, so that three-phase symmetric counter electromotive force is obtained.
When the mover 3 reciprocates linearly, the magnetic sheets 31 and the diamagnetic sheets 32 between the outer stator 1 and the inner stator 2 change at intervals, thereby forming a sinusoidal flux linkage and obtaining a three-phase sinusoidal back electromotive force.
During the use, be axial lamination structure through setting up outer stator 1 and inner stator 2, not only can block the vortex effectively, and processing is simple moreover, through fixed alternate permanent magnetism on inner stator 2 and set up armature winding on outer stator 1, and set up magnetic sheet 31 and the crisscross active cell 3 who distributes of diamagnetic sheet 32, make this generator in the occasion of long stroke, can reduce the permanent magnetism quantity, improve the permanent magnetism utilization ratio, active cell 3 through magnetic sheet 31 and diamagnetic sheet 32 constitution compares the active cell by permanent magnetism constitution and easily processes.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. The stator permanent magnet transverse flux linear generator for the direct drive type wave power generation is characterized by comprising an outer stator (1), wherein the outer stator (1) is hollow, an inner stator (2) is sleeved in the outer stator (1), a composite magnetic field is formed between the inner stator (2) and the outer stator (1), rotors (3) distributed in an array mode are arranged between the inner stator (2) and the outer stator (1), and the rotors (3) move linearly in a reciprocating mode to cut magnetic induction lines between the inner stator (2) and the outer stator (1);
the outer stator (1) comprises an outer stator core and an armature winding (14), and the outer stator core is formed by laminating outer stator core rings (11) distributed in an array along the axial direction;
the inner stator (2) comprises an inner stator iron core, S-level permanent magnets (22) distributed in an array mode and N-level permanent magnets (23) distributed in an array mode are fixed on the outer wall of the inner stator iron core, and the S-level permanent magnets (22) and the N-level permanent magnets (23) are arranged in a double-N double-S alternating mode, namely N-N-S-S-N-N …;
the inner stator iron core is formed by laminating inner stator iron core rings (21) distributed in an array;
the rotor (3) is composed of magnetic sheets (31) distributed in an array and diamagnetic sheets (32) distributed in an array at intervals.
2. The stator permanent magnet transverse flux linear generator for direct drive wave power generation according to claim 1, characterized in that the inner wall of the outer stator core ring (11) is provided with first slot teeth (12) distributed in an array, the first slot teeth (12) between the rings correspond up and down during lamination of the outer stator core ring (11), and the outer stator slots (13) are formed between two adjacent rows of the first slot teeth (12).
3. The stator permanent magnet transverse flux linear generator for direct drive wave power generation according to claim 2, characterized in that the armature winding (14) is sleeved on the first slot tooth (12), the armature winding (14) comprises a symmetrically distributed a-phase armature winding, a symmetrically distributed B-phase armature winding and a symmetrically distributed C-phase armature winding, the a-phase armature winding, the B-phase armature winding and the C-phase armature winding are distributed in a staggered manner, and adjacent two-phase armature windings are arranged in the same outer stator slot (13).
4. The stator permanent magnet transverse flux linear generator for direct drive wave power generation according to claim 2, wherein the laminated thickness of the inner stator core is the same as that of the outer stator core, and each of the S-stage permanent magnets (22) and the N-stage permanent magnets (23) is twelve.
5. The stator permanent magnet transverse flux linear generator for direct drive wave power generation according to claim 1, characterized in that the number of the movers (3) is twenty four, the length of the magnetic sheet (31) is equal to that of the diamagnetic sheet (32), the length of the magnetic sheet (31) is defined as a polar distance, the dislocation arrangement of each mover (3) is different, the mover dislocation of adjacent phases is set as 2/3 polar distances, and three-phase symmetric counter electromotive force is obtained;
when the rotor (3) reciprocates along a straight line, the magnetic sheets (31) and the diamagnetic sheets (32) between the outer stator (1) and the inner stator (2) change at intervals to form a sinusoidal magnetic chain, and three-phase sinusoidal counter electromotive force is obtained.
6. The stator permanent magnet transverse flux linear generator for direct drive wave power generation according to any one of claims 1-5, characterized in that the outer stator (1) and the inner stator (2) are both cylindrical, and the mover (3) is in the shape of a bar arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453821.0A CN112953154A (en) | 2021-04-26 | 2021-04-26 | Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110453821.0A CN112953154A (en) | 2021-04-26 | 2021-04-26 | Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112953154A true CN112953154A (en) | 2021-06-11 |
Family
ID=76233513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110453821.0A Pending CN112953154A (en) | 2021-04-26 | 2021-04-26 | Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112953154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738175A (en) * | 2022-01-27 | 2022-07-12 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wave energy power generation device, and wind and wave integrated power generation system and method |
| WO2022268802A1 (en) * | 2021-06-22 | 2022-12-29 | Alberto Roncan | Electric current generation apparatus with improved efficiency |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008041660A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Stator or rotor of an electric rotary or moving field machine |
| CN106130214A (en) * | 2016-07-26 | 2016-11-16 | 江苏大学 | A kind of electromagnetic suspension fault-tolerant permanent magnetism vernier cylinder motor |
| CN110112876A (en) * | 2019-05-17 | 2019-08-09 | 东南大学 | A kind of controllable transverse magnetic field modulation linear electric generator |
| CN111900852A (en) * | 2020-07-28 | 2020-11-06 | 东南大学 | Controllable transverse magnetic field modulation linear generator |
-
2021
- 2021-04-26 CN CN202110453821.0A patent/CN112953154A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008041660A1 (en) * | 2008-08-28 | 2010-03-04 | Robert Bosch Gmbh | Stator or rotor of an electric rotary or moving field machine |
| CN106130214A (en) * | 2016-07-26 | 2016-11-16 | 江苏大学 | A kind of electromagnetic suspension fault-tolerant permanent magnetism vernier cylinder motor |
| CN110112876A (en) * | 2019-05-17 | 2019-08-09 | 东南大学 | A kind of controllable transverse magnetic field modulation linear electric generator |
| CN111900852A (en) * | 2020-07-28 | 2020-11-06 | 东南大学 | Controllable transverse magnetic field modulation linear generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022268802A1 (en) * | 2021-06-22 | 2022-12-29 | Alberto Roncan | Electric current generation apparatus with improved efficiency |
| CN114738175A (en) * | 2022-01-27 | 2022-07-12 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wave energy power generation device, and wind and wave integrated power generation system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111404290B (en) | Concentrated winding transverse flux permanent magnet synchronous motor | |
| CN110224563B (en) | Three-phase magnetic-gathering bilateral passive rotor transverse flux permanent magnet motor | |
| CN102832771A (en) | Combined-type flux switching permanent magnet motor | |
| Zhao et al. | Improvement of power factor in a double-side linear flux-modulation permanent-magnet motor for long stroke applications | |
| CN102035270A (en) | Axial excitation double salient pole motors | |
| CN112953154A (en) | Stator permanent magnet transverse magnetic flux linear generator for direct-drive type wave power generation | |
| CN109802501A (en) | A kind of divided stator carnassial tooth flux switching motor | |
| CN111313576B (en) | Modularized permanent magnet motor | |
| CN113949244B (en) | Single-tooth concentrated winding few-harmonic axial flux motor | |
| CN112865348A (en) | Linear-rotary low-speed cylinder generator | |
| CN113141097A (en) | Magnetic field modulation hybrid excitation transverse magnetic flux linear generator | |
| Lu et al. | High torque density transverse flux machine without the need to use SMC material for 3-D flux paths | |
| CN111262358A (en) | Low-torque ripple magnetic flux reverse motor | |
| CN111082622A (en) | Decoupling type birotor alternating pole permanent magnet motor | |
| Yuan et al. | Design and analysis of a novel modular linear double-stator biased flux machine | |
| CN118074369A (en) | High-torque-density magnetic field modulation fault-tolerant permanent magnet direct-driven cutting motor for tunneling robot | |
| CN111277092B (en) | Stator modularized double-rotor alternating pole permanent magnet motor | |
| CN103248193A (en) | Fault-tolerate primary permanent magnetic vernier linear motor | |
| CN111245187B (en) | Annular winding dual-rotor flux reversal motor | |
| CN102223050B (en) | Cylindrical non-overlapping type transverse flux permanent magnet linear motor | |
| CN111181339A (en) | Stator modularized double-rotor doubly-salient permanent magnet motor | |
| Zhang et al. | Optimal design of a novel double-stator linear-rotary flux-switching permanent-magnet generator for offshore wind-wave energy conversion | |
| CN110112852B (en) | Double-fed permanent magnet motor | |
| CN108512393B (en) | A kind of novel four sides type linear motor | |
| Farahani et al. | Performance analysis and optimization of a H-type flux switching linear generator for wave energy converters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210611 |