CN102231576A - Self-fault tolerance magnetic flux switching permanent magnet motor - Google Patents
Self-fault tolerance magnetic flux switching permanent magnet motor Download PDFInfo
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- CN102231576A CN102231576A CN2011101734526A CN201110173452A CN102231576A CN 102231576 A CN102231576 A CN 102231576A CN 2011101734526 A CN2011101734526 A CN 2011101734526A CN 201110173452 A CN201110173452 A CN 201110173452A CN 102231576 A CN102231576 A CN 102231576A
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Abstract
The invention discloses a self-fault tolerance magnetic flux switching permanent magnet motor in order to improve the reliability of a motor and a drive system thereof. The self-fault tolerance magnetic flux switching permanent magnet motor is a stator permanent magnet motor. A three-phase armature winding of a stator (1) is composed of an A-phase armature winding, a B-phase armature winding and a C-phase armature winding; a winding A1 and a winding A2 of the A-phase armature winding are vertical to each other; a winding A3 and a winding A4 of the A-phase armature winding are vertical to each other; the winding A1 and the winding A2 are serially connected to an A-phase first channel (5); the winding A3 and the winding A4 are serially connected to an A-phase second channel (6); the A-phase first channel (5) and the A-phase second channel (6) are connected in parallel; and the B-phase armature winding and the C-phase armature winding are connected in a same mode with the A-phase armature winding. The invention has the advantages of simple structure, good self-fault tolerance performance, high reliability and high power density. A drive system composed of the self-fault tolerance magnetic flux switching permanent magnet motor is particularly suitable for high-reliability fields, such as aviation, military, mine steel rolling, and the like which require continuous operations.
Description
Technical field
The invention belongs to the motor manufacturing technology field, be specifically related to a kind of based on the biconvex electrode structure, firm, cost is low, be applicable at a high speed and the hot operation environment, to system continuous service requirement high reliability field from fault-tolerant flux switch permanent magnet motor.
Background technology
Along with the range of application of motor in field such as military, industrial, civilian constantly enlarges, the integrity problem of motor driven systems has obtained association area scholar's concern more and more widely, it is important that the occasion that continued operation is had higher requirements in Aero-Space, military equipment, mine steel rolling etc. particularly, reliability show especially.With regard to technological layer, the approach that improves system reliability mainly can be divided into redundant and fault-tolerant two kinds.Aspect motor body,,, do not adopted widely because structure is comparatively complicated though doublewound redundance type structure has improved the reliability of motor.The fault tolerant type motor mainly is divided into two classes: the one, and the motor body structure cooperates with fault-tolerant control strategy, i.e. the cooperation of hardware, software; The 2nd, only rely on the motor body structure and do not need special fault-tolerant control strategy, claim this type of fault tolerant type motor for from fault-tolerant motor.Switched reluctance machines adopts the biconvex electrode structure, has simple in structure, characteristics such as circuit and magnetic circuit mutual independence between phase and phase, has the fault freedom technical foundation; Consider that simultaneously magneto does not have excitation loss, efficient height, power density advantages of higher, to be incorporated into magneto from fault-tolerant concept, develop integrate high reliability, high power density and high fault tolerance can novel from fault-tolerant magneto, become current focus.
Magneto rotor permanent magnet-type motor is ripe at present, and has occurred the fault-tolerant architecture of the concentrated winding of stator employing on this basis.Can the correlative study result (quote pertinent literature?) show that the fault freedom of this kind motor is better, and have power density height, advantage that efficient is high, but because permanent magnet is installed in rotor surface, when motor is in the high speed rotating adstante febre, be prone to fault because of its cooling is difficult, the reliability decrease that causes motor is so be subjected to considerable restraint in the application in its high reliability field of mainly using.
The research of stator permanent magnetic type electric starts from middle nineteen nineties in last century, multiple electric machine structure has appearred in development so far, as doubly salient permanent magnet motor, magnetic flux reverse motor and flux switch permanent magnet motor etc., reliability height, power density height are for novel stator permanent-magnet is laid a good foundation from the research of fault-tolerant motor drive system.Conventional binary channels flux switch permanent magnet motor is formed a passage with two radially relative coils, every phase armature winding is made up of the passage of two parallel connections, therefore open-phase fault will cause this complementarity destroyed, make that the fault opposite potential is asymmetric, need to realize fault-tolerant control by adjusting the phase place and the amplitude of non-fault phase winding electric current.
Summary of the invention
The present invention discloses a kind of flux switch motor of novel winding construction, promptly from fault-tolerant flux switch permanent magnet motor, to improve the reliability of motor and drive system thereof.
The present invention is a stator permanent magnetic type electric from fault-tolerant flux switch permanent magnet motor structure, the threephase armature winding of stator (1) by A phase armature winding, B phase armature winding and C mutually armature winding constitute; The winding A1 and the winding A2 of A phase armature winding are orthogonal, and winding A3 and winding A4 are orthogonal, and winding A1, winding A2 series connection is A phase first passage (5), and winding A3, winding A4 series connection is A phase second channel (6); A phase first passage (5) and A second channel (6) parallel connection mutually; Described B phase armature winding, C phase armature winding are taked and the identical connected mode of A phase armature winding.
Described from fault-tolerant flux switch permanent magnet motor stator 12 utmost points, rotor 10 utmost points.
Described excitation mode from fault-tolerant flux switch motor is electric excitation mode or permanent magnet excitation mode or composite excitation mode.
The invention has the beneficial effects as follows:
1. the armature winding structure from fault-tolerant flux switch permanent magnet motor is simple, its circuit and magnetic circuit independence are good, when system's generation open circuit fault, the operation of non-fault phase can not be affected, do not need loaded down with trivial details fault-tolerant control strategy can realize electric system from fault-tolerant operation, have the stronger ability that operates with failure, the operating characteristic of motor approaches normal operating condition, and the torque output performance greatly improves;
2. compare with the series coil type flux switch motor of equal output torque capacity, have littler terminal voltage from fault-tolerant flux switch permanent magnet motor, be about equal output torque capacity flux switch motor 1/2;
3. during normal operating condition, two coil-induced electromotive force sum near sinusoidal of two passages of every phase armature winding distribute, and armature winding can lead to sinusoidal ac, uses vector control thought, and motor torque ripple is little.
4. stator permanent magnet is easy to cooling, is difficult for taking place the high temperature demagnetization.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is elaborated.
Fig. 1 be stator 12 utmost points, rotor 10 utmost points from fault-tolerant flux switch permanent magnet motor structure chart;
Fig. 2 is A phase winding connecting circuit figure;
Icon in the accompanying drawing: stator 1, rotor 2, permanent magnet 3, armature winding 4, winding A1, winding A2, winding A3, winding A4, A phase first passage 5, A phase second channel 6.
Embodiment
Is example with one 12/10 utmost point from fault-tolerant flux switch permanent magnet motor, and its sectional view as shown in Figure 1.Constituted by stator 1, rotor 2, permanent magnet 3 and armature winding 4 from fault-tolerant flux switch permanent magnet motor; Stator 1 is combined by 12 " U " shape stator cores and 12 permanent magnets 3 being embedded in the middle of the stator core of " U " shape, and the center of circle that permanent magnet 3 is symmetrical in stator 1 distributes." U " shape stator core and rotor core be with silicon steel sheet by shape shown in Figure 1, strike out stator iron-core lamination and rotor-core lamination respectively, laminate respectively with the iron-core lamination of sufficient amount and rotor-core lamination again and make stator core and rotor core.Armature winding 4 is for concentrating winding, and each coil windings is across on two stator 1 teeth.12 coils of threephase armature winding (A phase armature winding, B phase armature winding and C phase armature winding) have been divided into into six groups, and mutually perpendicular two coils series connection constitutes a passage, radially relative two passages formation in parallel, one phase winding.Winding A1 and winding A2 are orthogonal in four coils of A phase armature winding as shown in Figure 1, and winding A3 and winding A4 are orthogonal; As shown in Figure 1 and Figure 2, winding A1, winding A2 series connection for A phase first passage 5, is A phase second channel 6 with winding A3, winding A4 series connection, A phase first passage 5 and A second channel 6 mutually compose in parallel A phase armature winding.By that analogy, B phase armature winding, C phase armature winding are taked and the identical connected mode of A phase armature winding.
Rotor 2 has 10 teeth, is called 10 utmost points, and for stator permanent magnetic type electric, its rotor number of poles has determined rotor cycle.At normal operating condition, identical from two passage institute galvanization phase places of fault-tolerant each phase winding of flux switch permanent magnet motor with amplitude, A, B, C three-phase mutual deviation 120 degree, motor operate as normal.
Under normal operating condition, two passages of same phase feed identical winding current, under the condition of the same torque of output, have less terminal voltage from fault-tolerant flux switch permanent magnet motor than series coil type flux switch motor.When system's generation open circuit fault, even do not take any action, still can keep operation characteristic preferably, and not need to introduce loaded down with trivial details fault-tolerant control strategy from fault-tolerant flux switch permanent magnet motor.A1 is short-circuited as the A phase winding, and then A phase first passage 5 winding A1 and winding A2 all do not have electric current to flow through; But the winding A3 of A phase second channel 6 and winding A4 be operate as normal still, A phase induced potential does not change and still is near sinusoidal, and amplitude is constant, then three opposite potential still can keep sinusoidal symmetry, do not need to revise other parameters and have promptly realized fault-tolerant control, and just the A phase current becomes original 1/2, three-phase current is symmetry no longer, there is electric current to flow through in the neutral line, makes motor nonserviceable and still can improve operation characteristic down, guarantee that this motor driven systems possesses higher reliability.It is higher to be particularly useful for some reliability requirements from the drive system that fault-tolerant flux switch motor constitutes, and requires the high reliability field of continued operation as Aero-Space, military field, mine steel rolling etc.
The excitation mode of stator 12 utmost points/rotor 10 utmost point flux switch permanent magnet motors is electric excitation modes, or permanent magnet excitation mode, or the composite excitation mode, the permanent magnet 3 and the armature winding 4 that are wound with armature winding 4 are combined into an integral body, permanent magnet 3 along circumference tangentially by alternating magnetization.
Claims (3)
1. one kind from fault-tolerant flux switch permanent magnet motor, and structure is a stator permanent magnetic type electric, it is characterized in that: the threephase armature winding of described stator (1) by A phase armature winding, B phase armature winding and C mutually armature winding constitute; The winding A1 and the winding A2 of A phase armature winding are orthogonal, and winding A3 and winding A4 are orthogonal, and winding A1, winding A2 series connection is A phase first passage (5), and winding A3, winding A4 series connection is A phase second channel (6); A phase first passage (5) and A second channel (6) parallel connection mutually; Described B phase armature winding, C phase armature winding are taked and the identical connected mode of A phase armature winding.
2. described from fault-tolerant flux switch permanent magnet motor according to claim 1, it is characterized in that: described from fault-tolerant flux switch permanent magnet motor stator 12 utmost points, rotor 10 utmost points.
3. according to claim 1 or 2 described from fault-tolerant flux switch permanent magnet motor, it is characterized in that: described excitation mode from fault-tolerant flux switch motor is electric excitation mode or permanent magnet excitation mode or composite excitation mode.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283353A (en) * | 2014-10-30 | 2015-01-14 | 东南大学 | Winding complementary type multiphase half-tooth-winding flux switching motor |
| CN104319917A (en) * | 2014-10-30 | 2015-01-28 | 东南大学 | Redundant half-tooth-winding magnetic flux switching motor |
| CN107026550A (en) * | 2017-05-19 | 2017-08-08 | 北京航空航天大学 | A kind of Hybrid Excitation Switched Reluctance Motor |
| CN110383634A (en) * | 2017-03-16 | 2019-10-25 | 罗伯特·博世有限公司 | The motor of electronic commutation |
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| CN201038839Y (en) * | 2007-05-22 | 2008-03-19 | 东南大学 | Twisted mutually-supplementary magnetic pass switching dual protrusion pole permanent magnetic motor |
| CN101159391A (en) * | 2007-09-21 | 2008-04-09 | 东南大学 | Double-channel fault tolerant type flux switch permanent magnet motor and control method thereof |
| CN201365146Y (en) * | 2009-02-27 | 2009-12-16 | 东南大学 | Permanent-magnet machine with permanent magnet embedded on stator and projecting pole rotor |
| CN101697431A (en) * | 2009-10-21 | 2010-04-21 | 南京航空航天大学 | Multi-gear fault-tolerance permanent magnetism magnetic flux switching electric machine and fault-tolerance method thereof |
| CN202111547U (en) * | 2011-06-24 | 2012-01-11 | 大连名阳实业有限公司 | Self fault-tolerant magnetic flux switching permanent magnetism motor |
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2011
- 2011-06-24 CN CN2011101734526A patent/CN102231576B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038839Y (en) * | 2007-05-22 | 2008-03-19 | 东南大学 | Twisted mutually-supplementary magnetic pass switching dual protrusion pole permanent magnetic motor |
| CN101159391A (en) * | 2007-09-21 | 2008-04-09 | 东南大学 | Double-channel fault tolerant type flux switch permanent magnet motor and control method thereof |
| CN201365146Y (en) * | 2009-02-27 | 2009-12-16 | 东南大学 | Permanent-magnet machine with permanent magnet embedded on stator and projecting pole rotor |
| CN101697431A (en) * | 2009-10-21 | 2010-04-21 | 南京航空航天大学 | Multi-gear fault-tolerance permanent magnetism magnetic flux switching electric machine and fault-tolerance method thereof |
| CN202111547U (en) * | 2011-06-24 | 2012-01-11 | 大连名阳实业有限公司 | Self fault-tolerant magnetic flux switching permanent magnetism motor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283353A (en) * | 2014-10-30 | 2015-01-14 | 东南大学 | Winding complementary type multiphase half-tooth-winding flux switching motor |
| CN104319917A (en) * | 2014-10-30 | 2015-01-28 | 东南大学 | Redundant half-tooth-winding magnetic flux switching motor |
| CN104319917B (en) * | 2014-10-30 | 2016-10-05 | 东南大学 | Redundancy-type half tooth is around flux switch motor |
| CN104283353B (en) * | 2014-10-30 | 2017-02-15 | 东南大学 | Winding complementary type multiphase half-tooth-winding flux switching motor |
| CN110383634A (en) * | 2017-03-16 | 2019-10-25 | 罗伯特·博世有限公司 | The motor of electronic commutation |
| CN110383634B (en) * | 2017-03-16 | 2022-04-01 | 罗伯特·博世有限公司 | Electronically commutated electric machine |
| CN107026550A (en) * | 2017-05-19 | 2017-08-08 | 北京航空航天大学 | A kind of Hybrid Excitation Switched Reluctance Motor |
| CN107026550B (en) * | 2017-05-19 | 2019-07-02 | 北京航空航天大学 | A kind of Hybrid Excitation Switched Reluctance Motor |
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| CN102231576B (en) | 2013-08-21 |
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