CN113422485A - Two-channel switch reluctance fault-tolerant motor - Google Patents
Two-channel switch reluctance fault-tolerant motor Download PDFInfo
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- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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Abstract
The invention discloses a double-channel switched reluctance fault-tolerant motor which comprises an outer stator core (1), a rotor core (3) and an inner stator core (6) which are nested concentrically, wherein the inner circumferential wall of the outer stator core (1) is provided with inward convex main winding poles (2) at equal intervals, each main winding pole (2) is provided with a set of main winding (8), the inner circumferential wall and the outer circumferential wall of the rotor core (3) are respectively provided with winding-free rotor inner salient poles (5) and rotor outer salient poles (4) at equal intervals, the outer circumferential wall of the inner stator core (6) is provided with outward convex secondary winding poles (7) at equal intervals, and each secondary winding pole (7) is provided with a set of secondary winding (9); the pole arc width of the rotor external salient pole (4) is equal to the pole arc width of the main winding pole (3) and the pole arc width of the rotor internal salient pole (5) is equal to the pole arc width of the secondary winding pole (7). The invention has simple and compact structure and can improve the reliability and fault tolerance of the motor operation.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a double-channel magnetic suspension switch reluctance fault-tolerant motor which can run in double channels and improve the running reliability and fault tolerance of the motor.
Background
Switched reluctance machines originate in the uk and have two basic features: firstly, the switching performance, that is, the motor must work in a continuous switching mode state, is also the main reason that the motor is developed after various novel power semiconductor devices are developed; and secondly, the magnetic resistance is a real magnetic resistance motor, and the stator and the rotor are both in a salient pole structure and are provided with variable magnetic resistance loops.
The switched reluctance motor drives the rotor by means of reluctance torque generated by self-inductance variation of the windings. The switched reluctance motor has the advantages of simple manufacture, low cost, firm structure, good fault-tolerant performance, easy heat dissipation, suitability for high-speed operation and the like, and has strong competitiveness and wide application prospect in the fields of industrial driving, electric speed regulation, electric automobiles, household appliances, textile machinery and the like along with the severe price fluctuation of rare earth permanent magnet materials.
Along with the continuous expansion of the application field of the motor, people put forward higher requirements on the working reliability and safety of the motor. When the motor breaks down, immediate shutdown for maintenance is avoided as much as possible, and the motor is allowed to continue to work under the condition of the fault, so that time is reserved for reliable shutdown of other equipment in the system. Therefore, the fault-tolerant operation technology research of the motor has important significance for improving the system reliability.
For fault-tolerant operation of the switched reluctance motor, two ideas of adjusting a control strategy and a topological structure are provided on the whole.
Document 1 (li lei army, chun fang, research on open-phase operation characteristics of a switched reluctance motor [ J ]. micromotor, 2005, 38 (2): 27-30.) takes open-phase faults of a switched reluctance motor as a research object, and combines experimental results to verify that the normal switched reluctance motor can be used by derating to maintain operation when the open-phase faults occur. Document 2 (zhengyi, wanglie statics, detection and research of short-circuit fault of winding of switched reluctance motor [ J ]. electric transmission, 2008, 38 (11): 72-76.) indicates the conclusion that motor torque is lacked due to short circuit and torque current needs to be increased to maintain normal operation of the motor. The above is a research on fault-tolerant control from a strategic aspect.
For a switched reluctance fault-tolerant motor, the documents reported at present mainly focus on enhancing the independence between phase windings by embedding permanent magnets to change the path of magnetic lines of force, realizing fault-tolerant operation by adopting redundant windings to replace fault windings, and reducing the influence on other phases by changing the magnetic circuit of the motor into a short magnetic circuit through modularization of a stator and a rotor. The fault-tolerant capability of the motor body can be improved from the perspective of motor design, but the designed motor is usually of a special structure, a new control strategy needs to be introduced, and the universality is poor. Therefore, how to improve the reliability of actual operation while not increasing the structural specificity of the switched reluctance motor as much as possible by optimizing the topological structure of the switched reluctance motor has important significance.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a double-channel magnetic suspension switch reluctance fault-tolerant motor which can run in double channels and improve the running reliability and fault tolerance of the motor.
The invention aims to solve the problems by the following technical scheme:
the utility model provides a fault-tolerant motor of binary channels switched reluctance, includes outer stator core, rotor core, the interior stator core of concentric nestification in proper order from outside to inside, its characterized in that: the inner stator core is provided with a plurality of inner stator iron cores, the inner stator iron cores are provided with inner convex main winding poles at equal intervals on the circumferential inner wall, each main winding pole is provided with a set of main winding, the inner and outer walls of the circumference of the rotor iron core are respectively provided with inner rotor salient poles and outer rotor salient poles without windings at equal intervals, the outer wall of the circumference of the inner stator iron core is provided with outer convex secondary winding poles at equal intervals, and each secondary winding pole is provided with a set of secondary winding; the pole arc width of the rotor external salient pole is equal to the pole arc width of the main winding pole, and the pole arc width of the rotor internal salient pole is equal to the pole arc width of the secondary winding pole; the structure forms an inner rotor single-winding magnetic suspension switched reluctance motor and an outer rotor single-winding magnetic suspension switched reluctance motor which share a rotor core.
To make the motor self-starting, the main winding is divided into at least three phases, and a single-phase alternate conduction mode is adopted to provide electromagnetic torque.
The main windings of the same phase are connected in series in sequence to form one phase.
The secondary winding is used as a standby winding of the main winding, the phase number of the secondary winding is the same as that of the main winding, the fault-tolerant function is realized through a dual-channel operation technology, and when the main winding cannot work normally due to fault, a power circuit of the main winding is cut off, and the secondary winding is changed to provide electromagnetic torque required by the operation of the motor; the secondary winding also employs a single phase alternate conduction mode to provide backup electromagnetic torque.
The secondary windings of the same phase are connected in series in sequence to form one phase.
The number of poles N of the main winding pole1sNumber of poles N with rotor external salient pole1rSatisfies the relationship: n is a radical of1s＝2mk,N1r2(m ± 1) k, when the machine has a long magnetic circuit; or the number of poles N of the main winding pole1sNumber of poles N with rotor external salient pole1rSatisfies the relationship: n is a radical of1s＝4mk,N1r2(2m ± 1) k, when the machine has a short magnetic circuit; wherein m is the number of main winding phases, and k is a positive integer.
In the running process of the motor, a phase inductance change area of a main winding is used as a torque excitation area of the phase, and electromagnetic torque is generated after symmetric excitation; the selection of the torque excitation phase is matched with the operation mode of the motor, if the motor operates in the electric mode, the inductance rising phase is selected as the torque excitation phase, and if the motor operates in the power generation mode, the inductance falling phase is selected as the torque excitation phase.
In the running process of the motor, a phase inductance change area of the secondary winding is used as a torque excitation area of the phase, and electromagnetic torque is generated after symmetric excitation; the selection of the torque excitation phase is matched with the operation mode of the motor, if the motor operates in the electric mode, the inductance rising phase is selected as the torque excitation phase, and if the motor operates in the power generation mode, the inductance falling phase is selected as the torque excitation phase.
When the main winding is switched to be switched on, the instantaneous fluctuation range of the rotating speed of the motor is 0-2%.
The rotor position angle of the rotor outer salient pole relative to the main winding pole is theta1And the coincidence position of the center of the rotor external slot and the center of the corresponding main winding pole is a rotor position angle theta1Is positive in the clockwise direction.
The rotor position angle of the rotor inner salient pole relative to the secondary winding pole is theta2And the coincidence position of the center of the rotor internal slot and the center of the corresponding secondary winding pole is a rotor position angle theta2Is positive in the clockwise direction.
Compared with the prior art, the invention has the following advantages:
the invention utilizes the radial space of the switched reluctance motor, enables the switched reluctance motor to realize fault-tolerant operation by utilizing the inner channel and the outer channel by improving the topological structure of the motor, and essentially realizes the fault-tolerant operation by the redundant structure, so that the reliability of the motor is improved, the output performance of the motor is not influenced, and meanwhile, the control rules of the inner channel and the outer channel are the same, the transportability is strong, and the invention has innovativeness.
The switched reluctance fault-tolerant motor improves the fault tolerance and reliability of system operation through double-channel operation, realizes the fault-tolerant function through a double-channel operation technology by arranging the secondary winding as the standby winding of the main winding, can disconnect the main winding and use the secondary winding when the main winding fails and cannot work normally, and provides electromagnetic torque required by the motor operation through the secondary winding to ensure the reliable operation of the motor.
The switched reluctance fault-tolerant motor is structurally characterized in that the motor is formed by radially combining two single-winding switched reluctance motors, a yoke part of a rotor core is shared, the structure is compact, the principle is clear, and no extra axial space is occupied; the rotor iron core is not provided with a winding, so that a magnetic flux path can be provided for a main winding current together with the outer stator iron core, and a magnetic flux path can also be provided for a secondary winding current together with the inner stator iron core; when the main winding works normally, the motor can be regarded as an inner rotor switched reluctance motor; when the secondary winding works normally, the secondary winding can be regarded as an outer rotor switched reluctance motor; the working principle is clear, the control method and the switched reluctance motor have universality, and engineering technicians can conveniently understand and maintain the switched reluctance motor.
The main winding and the secondary winding in the switched reluctance fault-tolerant motor have mutually independent magnetic circuits, coupling influence does not exist, and the difficulty of designing a controller is not increased, so that the coupling of the main winding and the secondary winding is effectively weakened, and the difficulty of designing the controller is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a two-channel wide switch reluctance fault-tolerant motor of the present invention;
wherein: 1-an outer stator core; 2-main winding pole; 3-a rotor core; 4-rotor external salient pole; 5-salient pole in rotor; 6, an inner stator iron core; 7-secondary winding pole; 8-main winding; 9-secondary winding;
FIG. 2 is a schematic diagram of the distribution of the main windings of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 3 is a schematic diagram of the secondary winding distribution of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 4 is a schematic diagram of a change curve of phase inductance of a main winding of the dual-channel switched reluctance fault-tolerant motor with respect to a rotor position angle, and a result is obtained through two-dimensional finite element simulation;
FIG. 5 is a schematic diagram of a change curve of a secondary winding phase inductance of the dual-channel switched reluctance fault-tolerant motor of the invention with respect to a rotor position angle, and a result is obtained by two-dimensional finite element simulation;
FIG. 6 is a magnetic force line distribution diagram when the main winding of the switched reluctance fault-tolerant motor of the present invention is excited alone to generate electromagnetic torque, and a result is obtained by two-dimensional finite element simulation;
FIG. 7 is a magnetic force line distribution diagram when the secondary winding of the switched reluctance fault-tolerant motor of the present invention is excited alone to generate electromagnetic torque, and a result is obtained by two-dimensional finite element simulation;
FIG. 8 is a schematic diagram of a main winding conduction control operation interval of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 9 is a schematic diagram of a secondary winding conduction control operation interval of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 10 is a main winding phase current curve obtained by Simplorer-Maxwell combined simulation of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 11 is a secondary winding phase current curve obtained by Simplorer-Maxwell combined simulation of the dual-channel switched reluctance fault-tolerant motor of the present invention;
FIG. 12 is a rotation speed curve of the dual-channel switched reluctance fault-tolerant motor of the invention obtained under Simplorer-Maxwell combined simulation.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, the double-channel switched reluctance fault-tolerant motor adopts a 12/8/8/12-pole four-salient-pole structure, and comprises an outer stator core 1, a main winding pole 2, a rotor core 3, a rotor outer salient pole 4, a rotor inner salient pole 5, an inner stator core 6, a secondary winding pole 7, a main winding 8 and a secondary winding 9, wherein the outer stator core 1, the rotor core 3 and the inner stator core 6 are nested together from outside to inside in a concentric manner.
Twelve main winding poles 2 are disposed on the inner wall of the outer stator core 1 at equal intervals, eight rotor outer salient poles 4 are disposed on the outer wall of the rotor core 3 at equal intervals, eight rotor inner salient poles 5 are disposed on the inner wall of the rotor core 3 at equal intervals, and twelve sub-winding poles 7 are disposed on the outer wall of the inner stator core 6 at equal intervals. The pole arcs of the main winding pole, the secondary winding pole and the rotor are all 15 degrees, and the pole arcs of the rotor external salient pole and the rotor internal salient pole are all 15 degrees.
Referring to fig. 2 and fig. 3, the distribution schematic diagram of the primary winding and the secondary winding of the dual-channel switched reluctance fault-tolerant motor of the present invention is that only one set of primary winding 8 is wound on each primary winding pole 2, and four radially opposite primary windings 8 are sequentially connected in series to form one phase, which is divided into A, B, C three phases. i.e. iA1、iA2、iA3、iA4Currents, i, of the A-phase four-pole main winding 8, respectivelyB1、iB2、iB3、iB4Currents, i, of the B-phase four-pole main winding 8, respectivelyC1、iC2、iC3、iC4The currents of the C-phase four-pole main winding 8 are respectively.No winding is wound on the rotor external salient pole 4 and the rotor internal salient pole 5. Each secondary winding pole 7 is wound with only one set of secondary windings 9, and four radially opposite secondary windings 9 are sequentially connected in series to form one phase, and are divided into three phases of a, b and c. i.e. ia1、ia2、ia3、ia4Currents of the a-phase four-pole sub-winding 9, ib1、ib2、ib3、ib4Currents of the b-phase four-pole sub-winding 9, ic1、ic2、ic3、ic4The currents of the c-phase four-pole sub-winding 9 are respectively.
The rotor position angle of the rotor external salient pole 4 relative to the main winding pole 2 is defined as theta1The rotor position angle of the salient pole 5 in the rotor relative to the secondary winding pole 7 is theta2. Referring to fig. 4, the variation curve diagram of the phase inductance of the main winding of the dual-channel switched reluctance fault-tolerant motor of the invention with respect to the rotor position angle shows that the inductance of the main winding 8 is along with the rotor position angle theta during the rotation of the motor1May be varied. One phase inductance period is 45 degrees, and the position angle theta of the rotor is formed at the position where the center of the rotor external slot is superposed with the center of the A-phase main winding pole 21Is positive in the clockwise direction.
Referring to fig. 5, a schematic diagram of a change curve of a secondary winding phase inductance of the magnetic levitation switched reluctance fault-tolerant motor with the double-channel wide rotor teeth of the invention with respect to a rotor position angle is shown, wherein a phase inductance period is 45 degrees, and a rotor position angle theta is formed at a position where the center of a rotor inner slot coincides with the center of an a-phase secondary winding pole 72Is positive in the clockwise direction.
Under normal conditions, the main winding 8 provides electromagnetic torque required by normal operation of the motor, at the moment, the fault-tolerant motor is equivalent to a switched reluctance motor with an 12/8-pole structure, and the influences of the secondary winding 9, the inner stator iron core 6 and the rotor inner salient pole 5 can be ignored. Referring to fig. 8, a schematic diagram of a main winding conduction control operation interval of the dual-channel switched reluctance fault-tolerant motor of the present invention is shown, in the motor operation process, a phase inductance change area of the main winding 8 is used as a torque excitation area of the phase, and an electromagnetic torque is generated after symmetric excitation. The torque excitation phase is selected to match the desired electromagnetic torque of the motor, and the inductance-increasing phase is selected as the torque excitation phase if positive electromagnetic torque is desired to be generated, and the inductance-decreasing phase is selected as the torque excitation phase if negative electromagnetic torque is desired to be generated.
Table 1: main winding excitation interval selection rule
When the main winding 8 is cut off due to fault, the secondary winding 9 is used for providing electromagnetic torque required by the operation of the motor, and double-channel fault-tolerant operation is realized. At the moment, the fault-tolerant motor is equivalent to an outer rotor switched reluctance motor with an 8/12-pole structure, and the influence of the main winding 8, the outer stator core 1 and the rotor outer salient pole 4 can be ignored. Referring to fig. 9, a schematic diagram of a secondary winding conduction control operation interval of the dual-channel suspended switched reluctance fault-tolerant motor of the present invention takes a phase inductance change region of the secondary winding 9 as a torque excitation region of the phase, and generates an electromagnetic torque after symmetric excitation. The torque excitation phase is selected to match the desired electromagnetic torque of the motor, and the inductance-increasing phase is selected as the torque excitation phase if positive electromagnetic torque is desired to be generated, and the inductance-decreasing phase is selected as the torque excitation phase if negative electromagnetic torque is desired to be generated.
Table 2: selection rule of excitation interval of secondary winding
Referring to fig. 5, the magnetic force line distribution when the main winding of the dual-channel switched reluctance fault-tolerant motor of the present invention is excited to generate electromagnetic torque by single symmetric excitation, when iA1～iA4When symmetrically excited, the torque of the main winding 8 is magnetically passed through the channels A1～A4The poles, air gap and rotor external salient poles 4 form a closed magnetic circuit. A. the1～A4The torque flux of the main winding 8 in the vicinity of the poles is almost the same, and the flux generated by the current of the main winding 8 does not pass through the inner stator core 6 and the sub winding 9, and less flux is distributed on the rotor inner salient pole 5. Therefore, when the main winding 8 is excited symmetrically and separately, electromagnetic rotation is generatedMoment, the influence on the secondary winding 9, the inner stator core 6 and the rotor inner salient pole 5 is negligible.
Referring to fig. 6, the magnetic force line distribution diagram when the secondary winding of the dual-channel switched reluctance fault-tolerant motor of the present invention is separately and symmetrically excited to generate electromagnetic torque. When i isa1～ia4When symmetrically excited, the torque of the secondary winding 9 is produced through the magnetic channel a1～a4The poles, air gap and salient poles 5 in the rotor form a closed magnetic circuit. a is1～a4The torque magnetic fluxes of the sub-windings 9 in the vicinity of the poles are almost the same, and the magnetic flux generated by the current of the sub-windings 9 does not pass through the outer stator core 1 and the main winding 8, and the torque magnetic flux of the sub-windings 9 is less distributed to the rotor outer salient poles 4. Therefore, when the secondary windings 9 are symmetrically excited alone to generate electromagnetic torque, the influence on the main windings 8, the outer stator core 1, and the rotor outer salient poles 4 is negligible.
It can therefore be concluded that the flux paths of the primary and secondary windings 8, 9 are independent of each other and that the coupling effect is negligible.
Referring to fig. 10 and 11, the phase current curve of the dual-channel switched reluctance fault-tolerant motor of the invention is obtained under Simplorer-Maxwell combined simulation. Starting position angle theta1The motor is 22.5 degrees, the initial rotating speed is 1000rpm, the reference rotating speed is 1000rpm, the load torque is 2.2 N.m, the motor is in a normal running state in an interval of 0-21 ms, and the three-phase main winding 8 is symmetrically electrified with current with the size of about 7.5A; at the time of 21ms, the analog main winding 8 is cut off due to a fault, and the secondary winding 9 is conducted to continue providing the required electromagnetic torque, so that the three-phase main winding 8 symmetrically passes a current with the magnitude of about 12A. Referring to fig. 12, the two-channel switched reluctance fault-tolerant motor of the present invention has a rotation speed curve obtained under simlorer-Maxwell joint simulation. In the interval of 0-21 ms, the motor normally operates, and the fluctuation of the rotating speed is very small near 1000 rpm; at the time of 21ms, the simulation main winding 8 is cut off due to faults, the simulation main winding is switched to be conducted by the secondary winding 9, and the fluctuation range of the rotating speed of the motor is 0-2%. Therefore, the feasibility of the double-channel fault-tolerant operation of the motor is verified.
The double-channel switched reluctance fault-tolerant motor is formed by concentrically nesting an outer stator iron core 1, a rotor iron core 3 and an inner stator iron core 6 from outside to inside. Wherein, the outer wall of the rotor iron core 3 is provided with a rotor external salient pole 4, and the inner wall is provided with a rotor internal salient pole 5. The secondary winding 9 is used as a spare winding of the main winding 8, under the normal condition, the main winding 8 provides electromagnetic torque required by the normal operation of the motor, at the moment, the fault-tolerant motor is equivalent to a switched reluctance motor with an 12/8-pole structure, and the influence of the secondary winding 9, the inner stator iron core 6 and the rotor inner salient pole 5 can be ignored. When the main winding 8 is cut off due to a fault, the secondary winding 9 is used for providing electromagnetic torque required by the operation of the motor, and double-channel fault-tolerant operation is realized. At this time, the fault-tolerant motor of the invention is equivalent to an 8/12-pole outer rotor switched reluctance motor, and the influence of the main winding 8, the outer stator core 1 and the rotor outer salient pole 4 can be ignored. The fault-tolerant function is realized through a double-channel operation technology, and the fault tolerance and the reliability of the operation of the whole motor system are improved.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (10)
1. The utility model provides a fault-tolerant motor of binary channels switched reluctance, includes from outer to interior outer stator core (1), rotor core (3), the interior stator core (6) of concentric nestification in proper order, its characterized in that: the inner stator comprises an outer stator core (1), inner convex main winding poles (2) are arranged on the inner circumferential wall of the outer stator core (1) at equal intervals, a set of main winding (8) is arranged on each main winding pole (2), inner rotor salient poles (5) without windings and outer rotor salient poles (4) are arranged on the inner circumferential wall and the outer circumferential wall of the rotor core (3) at equal intervals respectively, outer convex secondary winding poles (7) are arranged on the outer circumferential wall of the inner stator core (6) at equal intervals, and a set of secondary winding (9) is arranged on each secondary winding pole (7); the pole arc width of the rotor external salient pole (4) is equal to that of the main winding pole (3), and the pole arc width of the rotor internal salient pole (5) is equal to that of the secondary winding pole (7); the structure forms an inner rotor single-winding magnetic suspension switched reluctance motor and an outer rotor single-winding magnetic suspension switched reluctance motor which share a rotor core (3).
2. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: the main winding (8) is at least divided into three phases, and a single-phase alternate conduction mode is adopted to provide electromagnetic torque.
3. The dual channel switched reluctance fault tolerant motor of claim 1 or 2, wherein: the main windings (8) of the same phase are connected in series in sequence to form one phase.
4. The dual channel switched reluctance fault tolerant motor of claim 1 or 2, wherein: the secondary winding (9) is at least divided into three phases, and a single-phase alternate conduction mode is adopted to provide electromagnetic torque.
5. The dual-channel switched reluctance fault-tolerant motor of claim 4, wherein: the secondary windings (9) of the same phase are connected in series in sequence to form one phase.
6. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: the number of poles of the main winding pole (2)N 1sNumber of poles with rotor external salient pole (4)N 1rSatisfies the relationship:N 1s =2mk, N 1r =2(m±1)kwhen the motor has a long magnetic circuit; or the number of poles of the main winding pole (2)N 1sNumber of poles with rotor external salient pole (4)N 1rSatisfies the relationship:N 1s =4mk, N 1r=2(2m±1)kwhen the motor has a short magnetic circuit; wherein,mthe number of the main winding phases is,kis a positive integer.
7. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: in the running process of the motor, a phase inductance change area of a main winding (8) is used as a torque excitation area of the phase, and electromagnetic torque is generated after symmetrical excitation; the selection of the torque excitation phase is matched with the operation mode of the motor, if the motor operates in the electric mode, the inductance rising phase is selected as the torque excitation phase, and if the motor operates in the power generation mode, the inductance falling phase is selected as the torque excitation phase.
8. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: in the running process of the motor, a phase inductance change area of the secondary winding (9) is used as a torque excitation area of the phase, and electromagnetic torque is generated after symmetrical excitation; the selection of the torque excitation phase is matched with the operation mode of the motor, if the motor operates in the electric mode, the inductance rising phase is selected as the torque excitation phase, and if the motor operates in the power generation mode, the inductance falling phase is selected as the torque excitation phase.
9. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: when the main winding (8) is switched to be switched on by the secondary winding (9), the instantaneous fluctuation range of the rotating speed of the motor is 0-2%.
10. The dual-channel switched reluctance fault-tolerant motor of claim 1, wherein: the rotor position angle of the rotor external salient pole (4) relative to the main winding pole (2) isq 1And the coincidence position of the center of the rotor external slot and the center of the corresponding main winding pole (2) is a rotor position angleq 1The rotating speed is positive in the clockwise direction; the rotor position angle of the salient pole (5) in the rotor relative to the secondary winding pole (7) isq 2And the coincidence position of the center of the rotor internal slot and the center of the corresponding secondary winding pole (7) is a rotor position angleq 2Is positive in the clockwise direction.
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| CN202110721313.6A CN113422485A (en) | 2021-06-28 | 2021-06-28 | Two-channel switch reluctance fault-tolerant motor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753289A (en) * | 2005-11-02 | 2006-03-29 | 张大鹏 | Bisalient pole magnetic resistance wheel hub electric motor |
| JP2010119263A (en) * | 2008-11-14 | 2010-05-27 | Denso Corp | Motor and controller for the same |
| CN104795952A (en) * | 2014-01-22 | 2015-07-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Switched reluctance motor |
| CN112953045A (en) * | 2021-02-07 | 2021-06-11 | 南京工程学院 | Radial strong-interference-resistance magnetic suspension switched reluctance motor |
-
2021
- 2021-06-28 CN CN202110721313.6A patent/CN113422485A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753289A (en) * | 2005-11-02 | 2006-03-29 | 张大鹏 | Bisalient pole magnetic resistance wheel hub electric motor |
| JP2010119263A (en) * | 2008-11-14 | 2010-05-27 | Denso Corp | Motor and controller for the same |
| CN104795952A (en) * | 2014-01-22 | 2015-07-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Switched reluctance motor |
| CN112953045A (en) * | 2021-02-07 | 2021-06-11 | 南京工程学院 | Radial strong-interference-resistance magnetic suspension switched reluctance motor |
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