CN101599689B - High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux - Google Patents
High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux Download PDFInfo
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- CN101599689B CN101599689B CN2009100725999A CN200910072599A CN101599689B CN 101599689 B CN101599689 B CN 101599689B CN 2009100725999 A CN2009100725999 A CN 2009100725999A CN 200910072599 A CN200910072599 A CN 200910072599A CN 101599689 B CN101599689 B CN 101599689B
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Abstract
A hybrid-magnetic-circuit flux high-temperature superconducting motor having a rotor with permanent magnets is provided, aiming at solving the problems of the traditional superconducting motors, such as huge copper loss, strong armature reaction and complex cooling structure. The motor comprises a stator module, a body module, two bearings and a motor rotating shaft; wherein, the body module is composed of a case, a first end cap and a second end cap; the stator module is composed of an armature iron core and an AC armature winding; the armature iron core is fixedly connected with the case by the way of mechanical tight fit; the AC armature winding is wound on the armature iron core; the two bearings are respectively arranged on inner rings serving as bearing blocks in the first end cap and the second end cap; the motor rotating shaft is connected with the case provided with the first end cap and the second end cap in a rotary manner through the two bearings. The motor also comprises the rotor with radial and tangential magnet steels; wherein, the rotor is arranged on the motor rotating shaft; an air gap is arranged between the rotor and the armature iron core. The motor has the advantages of little copper loss, weak armature reaction and simple cooling structure.
Description
Technical field
The present invention relates to a kind of superconducting motor, be specifically related to a kind of high-temperature superconducting motor of mixed magnetic circuit magnetic flux.
Background technology
Along with the development of hts tape technology, the superconducting power technology is that expanding economy and social progress bring extremely far-reaching influence.Cryomotor with its energy density height, the unit power-carrying is big, efficient is high, size is little, lightweight advantage is widely used in fields such as naval vessel electric propulsion system, electric locomotive traction, but the structure of traditional cryomotor is generally all imitated conventional synchronous motor structure, both rotor adopted the direct supercurrent excitation winding, stator adopts the copper winding, and rotating shaft adopts the quill shaft structure to provide circulation path for cold-producing medium.This structure exists problems such as copper loss is big, armature reaction is big, cooling structure complexity, is difficult to use and make, and has also reduced the reliability of system simultaneously.
Summary of the invention
The present invention is big for the copper loss that solves traditional superconducting motor existence, armature reaction big, the cooling structure complicated problems, and has proposed the high-temperature superconducting motor that a kind of rotor has permanent magnet mixed magnetic circuit magnetic flux.
Rotor has the high-temperature superconducting motor of permanent magnet mixed magnetic circuit magnetic flux, and it comprises stator module, cylinder block set, two bearings and machine shaft; Cylinder block set is made up of casing, first end cap and second end cap; First end cap is fixedlyed connected with casing by screw with second end cap; Stator module by armature core with exchange armature winding and form; Exchange armature winding and adopt hts tape, armature core is fixedlyed connected with casing in the friction tight mode of machinery; Exchange armature winding around the home on armature core; Two bearings are separately positioned on the interior ring that serves as bearing pedestal in first end cap and second end cap, and machine shaft is rotationally connected by two bearings and the casing that first end cap and second end cap are installed; Described high-temperature superconducting motor also comprises the rotor that has radial magnet steel and tangential magnet-steel; The rotor that has radial magnet steel and tangential magnet-steel is installed on the machine shaft, the outward flange of axial cross section that has the rotor of radial magnet steel and tangential magnet-steel is to be connected and composed by the quantity equal length circular arc identical with motor pole number, the junction of per two adjacent equal length circular arcs is provided with the axially extending bore of radial radial magnetizing permanent magnetism body, along the circumferential direction be set side by side with the axially extending bore of at least two cutting orientation magnetizing permanent magnets on the outer yoke of the axially extending bore of every adjacent two radial radial magnetizing permanent magnetism bodies, be placed with the permanent magnet of radial magnetizing in the axially extending bore of radial radial magnetizing permanent magnetism body, the axially extending bore of cutting orientation magnetizing permanent magnet is placed with the permanent magnet of cutting orientation magnetizing, has between the rotor of radial magnet steel and tangential magnet-steel and the armature core to be provided with air gap.
Beneficial effect of the present invention: exchange armature winding 8 and adopt the hts tape coiling, can reduce the copper loss of motor, and need the part of cooling not rotatablely move, simplified the sub-cooled structure of motor, improved the reliability of motor; The rotor 4 that has radial magnet steel and tangential magnet-steel can reduce the armature reaction of motor, increases the overload capacity of motor; The practicality of raising system.The scope of application that these have all widened high-temperature superconducting motor makes it can be widely used in fields such as pod propulsion electric propulsion system, electric locomotive traction, wind power generation and large scale industry steel rolling.
Description of drawings
Fig. 1 is a longitudinal sectional view of the present invention, and Fig. 2 has the longitudinal sectional view of the rotor 4 of radial permanent magnet body and tangential permanent magnet body for the present invention.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment comprises stator module, cylinder block set, two bearings 5 and machine shaft 6; Cylinder block set is made up of casing 1, first end cap 2 and second end cap 7; First end cap 2 is fixedlyed connected with casing 1 by screw with second end cap 7; Stator module by armature core 3 with exchange armature winding 8 and form; Armature core 3 is fixedlyed connected with casing 1 in the friction tight mode of machinery; Exchange armature winding 8 around the home on armature core 3; Two bearings 5 are separately positioned in first end cap 2 and second end cap 7 and serve as on the interior ring of bearing pedestal, and machine shaft 6 is rotationally connected by two bearings 5 and the casing 1 that first end cap 2 and second end cap 7 are installed; It also comprises the rotor 4 that has radial magnet steel and tangential magnet-steel; The rotor 4 that has radial magnet steel and tangential magnet-steel is installed on the machine shaft 6, the outward flange of axial cross section that has the rotor 4 of radial magnet steel and tangential magnet-steel is to be connected and composed by the quantity equal length circular arc identical with motor pole number, the junction of per two adjacent equal length circular arcs is provided with the axially extending bore 4-1 of radial radial magnetizing permanent magnetism body, along the circumferential direction be set side by side with the axially extending bore 4-2 of at least two cutting orientation magnetizing permanent magnets on the outer yoke of the axially extending bore 4-1 of every adjacent two radial radial magnetizing permanent magnetism bodies, be placed with the permanent magnet of radial magnetizing in the axially extending bore 4-1 of radial radial magnetizing permanent magnetism body, the axially extending bore 4-2 of cutting orientation magnetizing permanent magnet is placed with the permanent magnet of cutting orientation magnetizing, has between the rotor 4 of radial magnet steel and tangential magnet-steel and the armature core 3 to be provided with air gap.
Embodiment two: in conjunction with Fig. 2 present embodiment is described, the interior yoke that present embodiment and embodiment one difference are to have between the axially extending bore 4-1 of every adjacent two radial radial magnetizing permanent magnetism bodies of rotor 4 of radial magnet steel and tangential magnet-steel has a keyway 4-3 vertically; Machine shaft 6 is provided with key, the quantity of described keyway 4-3 and key is all identical with motor pole number quantity, the key of machine shaft 6 is pegged graft with the keyway 4-3 of the rotor 4 of radial magnet steel and tangential magnet-steel and is cooperated, and other composition is identical with embodiment one with connected mode.The purpose that keyway 4-3 is set is to make the rotor 4 that has radial magnet steel and tangential magnet-steel more fastening with being connected of machine shaft 6, and keyway 4-3 also plays the effect every the magnetic magnetic bridge simultaneously, to improve the utilance of permanent magnet.
Embodiment three: in conjunction with Fig. 2 present embodiment is described, the base angle that the axially extending bore 4-2 of cutting orientation magnetizing permanent magnet that present embodiment and embodiment one difference are to have the rotor 4 of radial magnet steel and tangential magnet-steel is positioned at axially extending bore 4-1 one side of radial radial magnetizing permanent magnetism body is a fillet.Other composition is identical with embodiment one with connected mode.Purpose is in order to increase the mechanical strength of rotor.
Embodiment four: present embodiment is to exchange armature winding 8 with embodiment one difference and adopts hts tape.Other composition is identical with embodiment one with connected mode.Purpose is to reduce the copper loss of motor
Embodiment five: in conjunction with Fig. 1 present embodiment is described, present embodiment and embodiment one or four differences are that stator adopts the fractional-slot structure, so that place the racetrack superconducting coil in the armature winding adjacent slot of motor.Other composition is identical with embodiment one or four with connected mode.
Claims (4)
1. rotor has the high-temperature superconducting motor of permanent magnet mixed magnetic circuit magnetic flux, and it comprises stator module, cylinder block set, two bearings (5) and machine shaft (6); Cylinder block set is made up of casing (1), first end cap (2) and second end cap (7); First end cap (2) is fixedlyed connected with casing (1) by screw with second end cap (7); Stator module by armature core (3) with exchange armature winding (8) and form; Exchange armature winding (8) and adopt hts tape, armature core (3) is fixedlyed connected with casing (1) in the friction tight mode of machinery; Exchange armature winding (8) around the home on armature core (3); Two bearings (5) are separately positioned on the interior ring that serves as bearing pedestal in first end cap (2) and second end cap (7), and machine shaft (6) is rotationally connected by two bearings (5) and the casing (1) that first end cap (2) and second end cap (7) are installed; It is characterized in that described high-temperature superconducting motor also comprises the rotor (4) that has radial magnet steel and tangential magnet-steel; The rotor (4) that has radial magnet steel and tangential magnet-steel is installed on the machine shaft (6), the outward flange of axial cross section that has the rotor (4) of radial magnet steel and tangential magnet-steel is to be connected and composed by the quantity equal length circular arc identical with motor pole number, the junction of per two adjacent equal length circular arcs is provided with the axially extending bore (4-1) of radial radial magnetizing permanent magnetism body, along the circumferential direction be set side by side with the axially extending bore (4-2) of at least two cutting orientation magnetizing permanent magnets on the outer yoke of the axially extending bore (4-1) of every adjacent two radial radial magnetizing permanent magnetism bodies, be placed with the permanent magnet of radial magnetizing in the axially extending bore of radial radial magnetizing permanent magnetism body (4-1), the axially extending bore of cutting orientation magnetizing permanent magnet (4-2) is placed with the permanent magnet of cutting orientation magnetizing, has between the rotor (4) of radial magnet steel and tangential magnet-steel and the armature core (3) to be provided with air gap.
2. rotor according to claim 1 has the high-temperature superconducting motor of permanent magnet mixed magnetic circuit magnetic flux, and the interior yoke that it is characterized in that having between the axially extending bore (4-1) of every adjacent two radial radial magnetizing permanent magnetism bodies of rotor (4) of radial magnet steel and tangential magnet-steel has a keyway (4-3) vertically; Machine shaft (6) is provided with key, and the quantity of described keyway (4-3) and key is all identical with motor pole number quantity, and the key of machine shaft (6) connects with the keyway (4-3) of the rotor that has magnet steel and tangential magnet-steel (4) and cooperates.
3. rotor according to claim 1 has the high-temperature superconducting motor of permanent magnet mixed magnetic circuit magnetic flux, and the base angle that the axially extending bore (4-2) of cutting orientation magnetizing permanent magnet that it is characterized in that having the rotor (4) of radial magnet steel and tangential magnet-steel is positioned at axially extending bore (4-1) side of radial radial magnetizing permanent magnetism body is a fillet.
4. rotor according to claim 1 has the high-temperature superconducting motor of permanent magnet mixed magnetic circuit magnetic flux, it is characterized in that stator adopts the fractional-slot structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100725999A CN101599689B (en) | 2009-07-27 | 2009-07-27 | High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100725999A CN101599689B (en) | 2009-07-27 | 2009-07-27 | High-temperature superconducting motor having rotor with permanent magnets hybrid-magnetic-circuit flux |
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| CN101599689A CN101599689A (en) | 2009-12-09 |
| CN101599689B true CN101599689B (en) | 2011-02-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101969239B (en) * | 2010-07-09 | 2013-03-06 | 瑞声声学科技(深圳)有限公司 | Magnetic steel and motor using same |
| CN101969238A (en) * | 2010-07-09 | 2011-02-09 | 瑞声声学科技(深圳)有限公司 | Magnetic steel and motor applying magnetic steel |
| CN109617373A (en) * | 2019-01-17 | 2019-04-12 | 上海交通大学 | A kind of synchronous motor and starting method of based superconductive permanent magnetism mixed rotor magnet |
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