CN101141092A - Switch reluctance motor used for position control of electric activator - Google Patents
Switch reluctance motor used for position control of electric activator Download PDFInfo
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- CN101141092A CN101141092A CNA2007100599592A CN200710059959A CN101141092A CN 101141092 A CN101141092 A CN 101141092A CN A2007100599592 A CNA2007100599592 A CN A2007100599592A CN 200710059959 A CN200710059959 A CN 200710059959A CN 101141092 A CN101141092 A CN 101141092A
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Abstract
The invention relates to a switched reluctance motor which is used in the position control of the motor operator, mainly comprising a motor casing, a stator, a rotor, a motor shaft, a front cover, a back cover and a position transducer; wherein the stator, the rotor and the motor shaft are arranged in the motor casing, the stator is arranged at the periphery of the rotor, and the winding is enlaced with the rotor; the position transducer arranged at the front cover is fixed with the motor casing; and the motor shaft is connected with a motor operator; thereby the invention has the advantages of simple structure, high reliably, low cost, easy maintenance, big starting torque and small moment of inertia; moreover, the switched reluctance motor is capable of regulating speed to operate, realizing high-precision position control, in addition, the invention is suitable for two-way electrify, solving the prior trouble that the traditional motor operation utilizes the AC electric machine as the power; and at the same time. The performance of the reluctance machine of the switch is good, and the degree of protection is capable of achieving IP6; and in addition, the invention adopts the optimum design as reducing noise and torque pulsation, lowering noise.
Description
Technical field:
The present invention relates to the switched reluctance motor technology, particularly a kind of switched reluctance motor that is used for the electric actuator Position Control.
Technical background:
Electric actuator is the main performance element in the Industry Control, the typical products of conventional electric actuator is a DK series electric actuator, can simply be divided into angle stroke actuator and rectilinear path actuator two classes, they all are to be the position servomechanism of power with the alternating current machine.These two kinds of electric actuator, solved the Long-distance Control problem in dangerous work zone or real time control area territory, but can't carry out communication and be connected with host computer, can not with the mutual communication of the state of other instrument, host computer can not in time capture the operating condition of actuator.And also have following defective at aspect of performance: the motor output speed is non-adjustable, can't realize the location, exact position; Electromagnetic brake is malfunctioning easily, cause be used to walk, locking; The drift of position feedback circuit performance.
Based on the deficiency of traditional actuator, various intelligent electric activators are developed successively.The Intellectualized electric actuator though solved some shortcoming and defect of old-fashioned actuator, is not all broken through the basic framework of traditional actuator product, has only carried out upgrading or strengthening aspect discrete structure, technology and element.And the renewal on these element qualities, structural manufacturing process though improved the performance index of actuator, promotes production cost greatly, is unfavorable for popularizing of product.
Summary of the invention:
The object of the present invention is to provide a kind of switched reluctance motor that is used for the electric actuator Position Control.Novel switched reluctance motor of the present invention is simple in structure, reliability height, adjustable speed operation, the control of realization high precision position, adapt to two-way communication, add that switched reluctance motor has the ability of braking, well having solved is the existing difficult problem of the conventional electric actuator of power with the alternating current machine.Effectively reduce the cost of system, it is inaccurate to have solved the location that the conventional electric actuator occurs, the drift of position feedback circuit performance, band-type brake is malfunctioning cause be used to walk, the locking problem.
Electric actuator of the present invention can also be carried out communication with host computer easily, and digitized control technology makes the flexibility of system be improved, and man-machine dialog interface is hommization more, has reduced the system maintenance amount.Novel switched reluctance motor function admirable of the present invention, degree of protection can reach IP67, and detent torque is big, and moment of inertia is little.In structural design, adopted and reduced the Optimization Design that noise reduces torque pulsation, aspect the reduction noise progress is being arranged.
The switched reluctance motor that is used for the electric actuator Position Control provided by the invention mainly comprises: motor casing, stator, rotor, motor shaft, front and rear cover and position transducer; Motor casing inside is provided with stator, rotor and motor shaft, and rotor does not have winding and do not have permanent magnet, and stator is in the periphery of rotor, and winding is concentrated and is wrapped on the stator, radially the windings in series of antipode; Position transducer is installed on the front end housing and fixes with motor casing; Rotor has anti-dazzling screen, and motor shaft is connected with electric actuator.
Described position transducer is to comprise two grooved optoelectronic switches, be positioned at the position of A phase stator center line and 15 ° of mechanical angles of one side, the anti-dazzling screen of rotor, shield slot type optoelectronic switch during rotation, be used to produce the diverse location signal, make controller correctly determine turn-on and turn-off constantly.
Evenly have six holes on the described rotor.
Adopt elastomeric material to be connected between described motor shaft and the electric actuator spider gear as transition.
Described casing inner surface is coated with damping material, and varnish sticks together stator lasmination fully.
Described stator, rotor form by silicon steel plate stacking.
The rear end cap of described motor casing is provided with the installing hole of reservation.
Novel switched reluctance motor of the present invention is simple in structure, the reliability height, easy care, the adjustable speed operation, the control of realization high precision position, adapt to two-way communication, add that switched reluctance motor has the ability of braking, well having solved is the existing difficult problem of the conventional electric actuator of power with the alternating current machine.Effectively reduce the cost of system, it is inaccurate to have solved the location that the conventional electric actuator occurs, the drift of position feedback circuit performance, band-type brake is malfunctioning cause be used to walk, the locking problem.
Simultaneously, can also carry out communication with host computer easily based on electric actuator of the present invention, digitized control technology makes the flexibility of system be improved, and man-machine dialog interface is hommization more, has reduced the system maintenance amount.
Based on novel switched reluctance motor function admirable of the present invention, degree of protection can reach IP67, and detent torque is big, and moment of inertia is little.In structural design, adopted and reduced the Optimization Design that noise reduces torque pulsation, aspect the reduction noise progress having been arranged, overcome the big problem of noise of motor torque pulsation.
Description of drawings:
Fig. 1 is the installation diagram of novel switched reluctance motor of the present invention.
Fig. 2 is two grooved optoelectronic switches of novel switched reluctance motor of the present invention installation site.
Fig. 3 is that rotor-position signal and corresponding phase inductance change.
Fig. 4 is the timing stator rotor relative position at zero point.
Fig. 5 is the rotor vertical profile structural map of novel switched reluctance motor of the present invention.
Fig. 6 is the rotor vertical profile structure chart of existing switched reluctance machines.
Fig. 7 is the curve that the radial load of motor under the different bore size with rotor of rotor atresia changes with rotor angle.
Embodiment
As shown in the figure, 1-motor casing, 2-stator, 3-rotor, 4-motor shaft, 5-winding, 6-grooved optoelectronic switch, 7-front end.The 8-shadow shield.The present invention is used for the novel switched reluctance motor of electric actuator Position Control, for being exclusively used in the power source of electric actuator, comprises motor casing 1, is arranged on stator 2, rotor 3, the motor shaft 4 of motor casing inside, and rotor 2 forms by silicon steel plate stacking.Rotor 3 no windings do not have permanent magnet, and stator 2 is in the periphery of rotor 3, and winding 5 is concentrated and is wrapped on the stator 2, and radially the windings in series of antipode constitutes one group.Position transducer adopts two grooved optoelectronic switches 6 to carry out position probing, is installed on the front end housing 7 to fix with motor casing 1, and two grooved optoelectronic switches are positioned at the place of A phase stator center line and 15 ° of mechanical angles of one side.Rotor 3 has anti-dazzling screen 8, and shield slot type optoelectronic switch 6 during rotation produces the diverse location signal, makes controller correctly determine turn-on and turn-off constantly.
Position transducer adopts two flute profile optoelectronic switches 6 among the present invention, and the installation site is designated as S, P.Shown in Figure 2 as Fig. 1, when being blocked by shadow shield 8 in the fluting of grooved optoelectronic switch 6, the infrared ray that infrared diode on the position transducer produces can't shine the base stage of phototriode, phototriode ends, transistor collector is output as high level, have the non-low level that is output as behind the door through one, promptly output state is 0; When not having object to block in the groove, the phototriode base stage obtains irradiation, and the triode conducting finally is output as high level, and promptly output state is 1.Then a rotor angle period tau
t(τ
t=60 °) in, it is 15 ° that S, P produce two phase differences, duty ratio is 50% square-wave signal, is combined into four kinds of different states.Adopting two angles among the present invention is that 15 ° grooved optoelectronic switch carries out Position Control, the current location of rotor is provided according to output signal, and judge whether the needs commutation according to this signal, which switch on mutually to, adopting angle is that two grooved optoelectronic switches of 15 ° carry out Position Control and are specially adapted to two-way communication control, can guarantee that at any time the two-phase torque of energising is more than or equal to zero.Promptly adopting the grooved optoelectronic switch of 15 ° of angles to carry out Position Control is the motor optimal control angle of exerting oneself.
As shown in Figure 3, provided corresponding to the corresponding winding inductance variation of location status information.Relative position as shown in Figure 4 is timing zero point, and S=1 is arranged, P=1, and A, D switches on mutually; Rotor turns over 15 ° counterclockwise, and state becomes S=1, P=0, and A, B switches on mutually; Turn over 15 ° again, S=0 then, P=0, B, C switches on mutually; Turn over a step angle again, S=0 then, P=1, C, D switches on mutually; Through one 15 °, rotor has turned over a rotor angle period tau again
t, then state reverts to initial S=1 again, P=1, circulation and so forth.
Evenly have six holes on the rotor as shown in Figure 5, be the rotor vertical profile structural map of the switched reluctance machines of example of the present invention, Figure 6 shows that the rotor vertical profile structure chart of existing switched reluctance machines.Radially magnetic attraction is the Reeb of pulsation, do not produce the tangential motion torque, it is in tooth minimum during to the groove position, in tooth maximum during to the tooth position, stator 2 is a shell structure, form compression, extensional vibration inevitably, vibration constitutes the main source of switched reluctance machines noise by motor casing 1 outside shot noise.Perforate can reduce radial load in rotor core 3, represents the radial load of motor under the different bore size with rotor of rotor atresia and the curve that torque changes with rotor angle as shown in Figure 7.As seen, the rotor structure of novel switched reluctance motor of the present invention can effectively reduce radial load, and then reduces noise of motor.
The torque pulsation that existing switched reluctance machines is bigger causes and its coaxial other vibrations of rotating components that are connected easily.Adopt elastomeric material to be connected between motor shaft 4 of the present invention and the actuator spider gear, connect by elasticity and avoid tangential vibrations to be delivered to other coaxial elements, can effectively reduce vibration, avoid because the resonance noise that tangential vibrations causes as transition.
On stator 2 iron cores, be coated with damping material among the present invention, stator lasmination sticked together fully, can increase the damping of electric machine structure, reduce the vibration on casing surface with varnish.
As electric actuator special switch reluctance motor of the present invention, motor casing one end is provided with the installation rear end cap, and rear end cap is provided with the installing hole of reservation.
Claims (7)
1. a switched reluctance motor that is used for the electric actuator Position Control is characterized in that it mainly comprises: motor casing, stator, rotor, motor shaft, front and rear cover and position transducer; Motor casing inside is provided with stator, rotor and motor shaft, and rotor does not have winding and do not have permanent magnet, and stator is in the periphery of rotor, and winding is concentrated and is wrapped on the stator, and radially the windings in series of antipode constitutes one group; Position transducer is installed on the front end housing and fixes with motor casing; Rotor has anti-dazzling screen, and motor shaft is connected with electric actuator.
2. according to the described switched reluctance motor of claim 1, it is characterized in that described position transducer is to comprise two grooved optoelectronic switches, is positioned at the position of A phase stator center line and 15 ° of mechanical angles of one side.
3. according to the described switched reluctance motor of claim 1, it is characterized in that evenly having on the described rotor six holes.
4. according to the described switched reluctance motor of claim 1, it is characterized in that adopting elastomeric material to be connected between described motor shaft and the electric actuator spider gear as transition.
5. according to the described switched reluctance motor of claim 1, it is characterized in that described casing inner surface is coated with damping material, varnish sticks together stator lasmination fully.
6. according to the described switched reluctance motor of claim 1, it is characterized in that described stator, rotor form by silicon steel plate stacking.
7. according to the described switched reluctance motor of claim 1, it is characterized in that the rear end cap of described motor casing is provided with the installing hole of reservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100599592A CN101141092A (en) | 2007-10-19 | 2007-10-19 | Switch reluctance motor used for position control of electric activator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100599592A CN101141092A (en) | 2007-10-19 | 2007-10-19 | Switch reluctance motor used for position control of electric activator |
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| Publication Number | Publication Date |
|---|---|
| CN101141092A true CN101141092A (en) | 2008-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100599592A Pending CN101141092A (en) | 2007-10-19 | 2007-10-19 | Switch reluctance motor used for position control of electric activator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478197B (en) * | 2009-01-22 | 2011-07-20 | 河北工业大学 | Intelligent electric actuator apparatus based on frequency conversion control technique |
| CN103090082A (en) * | 2012-12-31 | 2013-05-08 | 张家政 | Seal valve switch electric machine |
| CN103151880A (en) * | 2013-02-02 | 2013-06-12 | 宋社民 | Temperature rise controllable type switch reluctance motor |
| CN108561222A (en) * | 2018-04-04 | 2018-09-21 | 江苏凯迪航控系统股份有限公司 | Having electronic quickly starts the turbocharger of separate structure |
| CN109470483A (en) * | 2018-12-14 | 2019-03-15 | 中国航发沈阳发动机研究所 | Aircraft engine high pressure rotor rocking-turn power device and rocking-turn system |
-
2007
- 2007-10-19 CN CNA2007100599592A patent/CN101141092A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478197B (en) * | 2009-01-22 | 2011-07-20 | 河北工业大学 | Intelligent electric actuator apparatus based on frequency conversion control technique |
| CN103090082A (en) * | 2012-12-31 | 2013-05-08 | 张家政 | Seal valve switch electric machine |
| CN103090082B (en) * | 2012-12-31 | 2015-07-15 | 张家政 | Seal valve switch electric machine |
| CN103151880A (en) * | 2013-02-02 | 2013-06-12 | 宋社民 | Temperature rise controllable type switch reluctance motor |
| CN108561222A (en) * | 2018-04-04 | 2018-09-21 | 江苏凯迪航控系统股份有限公司 | Having electronic quickly starts the turbocharger of separate structure |
| CN108561222B (en) * | 2018-04-04 | 2024-05-14 | 江苏凯迪航控系统股份有限公司 | Turbocharger with electronic quick-start split structure |
| CN109470483A (en) * | 2018-12-14 | 2019-03-15 | 中国航发沈阳发动机研究所 | Aircraft engine high pressure rotor rocking-turn power device and rocking-turn system |
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Open date: 20080312 |