CN201656881U - Coaxial driving system of two permanent-magnet synchronous motors - Google Patents
Coaxial driving system of two permanent-magnet synchronous motors Download PDFInfo
- Publication number
- CN201656881U CN201656881U CN201020129577XU CN201020129577U CN201656881U CN 201656881 U CN201656881 U CN 201656881U CN 201020129577X U CN201020129577X U CN 201020129577XU CN 201020129577 U CN201020129577 U CN 201020129577U CN 201656881 U CN201656881 U CN 201656881U
- Authority
- CN
- China
- Prior art keywords
- motors
- coaxial
- motor
- feedback device
- electric machine
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Multiple Motors (AREA)
Abstract
The utility model provides a coaxial driving system of two permanent-magnet synchronous motors, which comprises two coaxial motors, a set of motor controller and a set of position feedback device, wherein motive power lines of the two coaxial motors are both connected to a motive power output port of the motor controller, the position feedback device is arranged on one motor and is connected with an encoder interface of the motor controller, and the positions of rotor magnet poles of the two coaxial motors conform to relative space positions of respective stator windings. The utility model provides the scheme that a set of motor controller and a set of position feedback device are used for driving the two coaxial motors, a set of position feedback device and a set of motor controller can be eliminated by the coaxial driving system of the two motors, and the actual system can be greatly simplified.
Description
Technical field
The utility model relates to a kind of drive system of permagnetic synchronous motor, is specifically related to a kind of coaxial drive system of two permanent magnet synchronous motors.
Background technology
Permagnetic synchronous motor claims AC servo motor again, can not directly be connected on the electrical network to move, and generally need be driven and be controlled by special driver.Simultaneously, on motor shaft, the rotor-position feedback device must be installed, as optical encoder and resolver etc.Driver is according to detected rotor real time position, and the electric current and the rotor-position of control motor are synchronous, thereby realizes the rotation of permagnetic synchronous motor.The typical permagnetic synchronous motor drive system of one cover as shown in Figure 1.
In some industrial application, often need exert oneself, as a link of motion control by many permanent magnet synchronous motors are collaborative.The axle of these motors can be connected in together, the motor coaxle operation.Operate to example with two motor coaxles, Fig. 2 a is the form that two motor mirror images are installed, and Fig. 2 b is two forms that motor is installed in the same way.Certainly, also can be not have coupling, and adopt the form of an axle.
Permagnetic synchronous motor drive system commonly used requires every motor that a driver and position coder are independently all arranged independently, by the synchronizing shaft controlled function realization driven in synchronism of digital control system.For driven shaft, according to encoder with respect to the grid offset of driving shaft encoder as position reference, the Control Parameter of driven shaft is arranged to use the driving shaft parameter controls.So for drive system shown in Figure 2, just need two drivers and two cover position feedback devices, control the operation of two motors respectively, the system cost height, and two motors uneven phenomenon of exerting oneself takes place easily.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of coaxial drive system of two permanent magnet synchronous motors to be provided.
The technical solution of the utility model is: a kind of coaxial drive system of two permanent magnet synchronous motors, comprise two coaxial motors, a cover electric machine controller and a cover position feedback device, the power line of described two coaxial motors all is connected to the clutch end mouth of described electric machine controller, wherein on a coaxial motor position feedback device is installed, this position feedback device is connected with the encoder interfaces of described electric machine controller, the locus unanimity of the position of described two coaxial motor rotor magnetic poles stator winding relatively separately.
Can be provided with shaft coupling between described two coaxial motors, or not be provided with shaft coupling and a shared axle, the two ends of axle are connected and fixed with rotor separately respectively.
When two coaxial motors are to install in the same way, when described electric machine controller was connected with two coaxial motors respectively, the connection phase sequence of two motors all was UVW.
When two coaxial motors are that mirror image is installed, when described electric machine controller was connected with two coaxial motors respectively, the connection phase sequence of a motor was UVW, and the connection phase sequence of an other motor is UWV.
Described electric machine controller is owing to need to drive two motors, and the power grade of controller is wanted corresponding increasing.
Beneficial effect: the utility model proposes the scheme that drives two coaxial motors with a cover electric machine controller and a cover position feedback device, the system of two motor coaxles can omit a cover position feedback device and a cover electric machine controller, and real system is simplified greatly.
Description of drawings
Fig. 1 is existing permagnetic synchronous motor driving system structure schematic diagram;
The form that Fig. 2 a installs for existing two coaxial motor mirror images;
Fig. 2 b is existing two forms that coaxial motor is installed in the same way;
Electrical connection diagram when Fig. 3 a is two coaxial motor mirror images installations of the utility model;
Fig. 3 b is the electrical connection diagrams of two coaxial motors of the utility model when installing in the same way;
Fig. 4 is the schematic diagram of the utility model motor mounting technique method two.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in Figure 3: a kind of coaxial drive system of two permanent magnet synchronous motors, comprise two coaxial motors, a cover electric machine controller and a cover position feedback device, the power line of two coaxial motors all is connected to the clutch end mouth of described electric machine controller, wherein on a coaxial motor position feedback device is installed, this position feedback device is connected with the encoder interfaces of described electric machine controller.
Be provided with shaft coupling between described two coaxial motors, or be not provided with shaft coupling and a shared axle, the two ends of axle are connected and fixed with rotor separately respectively.
When two coaxial motors are that mirror image is installed, when described electric machine controller was connected with two motors respectively, the connection phase sequence of two motors all was UVW.
When two coaxial motors are oppositely to install, when described electric machine controller was connected with two motors respectively, the connection phase sequence of a motor was UVW, and the connection phase sequence of an other motor is UWV.
When electromechanics connects, it should be noted that if the angle of two motors position stator winding relatively separately of rotor magnetic pole when connecting is incorrect, can occur two motors exert oneself inhomogeneous, even the opposite situation of torque direction.At this moment must guarantee that the locus of the position of the rotor magnetic pole of coaxial connection stator winding relatively separately must be consistent, otherwise will occur that two motors exert oneself asymmetric.At this moment, can realize the consistent of two rotor magnetic poles and stator winding locus by different technology.
Method one: when motor is installed, at first guarantee two positions of motor stator winding on circumference (from going out axle head) in full accord, when connecting two motor shafts, guarantee that the position of rotor magnetic pole on circumference is also in full accord then, this has just realized the unanimity of relative position.
Method two: when motor was installed, elder generation is fixed electrical machinery stator and casing respectively, and at this moment the setting angle to stator and casing does not require.Then, it is through a DC respectively to the winding of two motors to use linear direct current regulated power supply, and electric current must be large enough to can overcome friction and motor teeth groove moment etc., and electric current is big more, and effect is good more.There is different connections can reach same effect.
Connection as shown in Figure 4 is after motor passes through a direct current, because the effect of electromagnetic field, rotor can turn over an angle, static then and be locked in this angle, at this moment the magnetic pole of rotor has just in time been aimed at the magnetic field center line of motor windings U phase, and at this moment motor coupling and locking can be installed.Just can disconnect direct current after coupling is installed, at this moment just realize the consistency of rotor relative position.
Claims (4)
1. the coaxial drive system of a two permanent magnet synchronous motors, it is characterized in that: comprise two coaxial motors, a cover electric machine controller and a cover position feedback device, the power line of two coaxial motors all is connected to the clutch end mouth of described electric machine controller, wherein on a coaxial motor position feedback device is installed, this position feedback device is connected with described electric machine controller encoder interfaces, the locus unanimity of the position of described two rotor magnetic poles stator winding relatively separately.
2. the coaxial drive system of two permanent magnet synchronous motors according to claim 1 is characterized in that: can be provided with shaft coupling between described two motors, or not be provided with shaft coupling and a shared axle, the two ends of axle are connected and fixed with rotor separately respectively.
3. the coaxial drive system of two permanent magnet synchronous motors according to claim 1 is characterized in that: when two coaxial motors are to install in the same way, when described electric machine controller was connected with two coaxial motors respectively, the connection phase sequence of two motors all was U V W.
4. the coaxial drive system of two permanent magnet synchronous motors according to claim 1, it is characterized in that: when two coaxial motors are that mirror image is installed, when described electric machine controller is connected with two coaxial motors respectively, the connection phase sequence of a motor is U V W, and the connection phase sequence of an other motor is U W V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020129577XU CN201656881U (en) | 2010-03-12 | 2010-03-12 | Coaxial driving system of two permanent-magnet synchronous motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020129577XU CN201656881U (en) | 2010-03-12 | 2010-03-12 | Coaxial driving system of two permanent-magnet synchronous motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656881U true CN201656881U (en) | 2010-11-24 |
Family
ID=43122111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020129577XU Expired - Lifetime CN201656881U (en) | 2010-03-12 | 2010-03-12 | Coaxial driving system of two permanent-magnet synchronous motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656881U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783633A (en) * | 2010-03-12 | 2010-07-21 | 江苏金方圆数控机床有限公司 | Coaxial drive system for two permanent magnet synchronous motors |
| CN103501139A (en) * | 2013-07-26 | 2014-01-08 | 浙江盛迈电气技术有限公司 | Permanent magnet synchronous motor coaxial drive system with phase shifting |
| CN103840622A (en) * | 2014-03-31 | 2014-06-04 | 苏州大学 | Synchronous-driven positioning platform |
| CN104528277A (en) * | 2014-11-27 | 2015-04-22 | 苏州紫金港智能制造装备有限公司 | Dual-motor coaxial-line real-time synchronous dragging system and synchronization method |
-
2010
- 2010-03-12 CN CN201020129577XU patent/CN201656881U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783633A (en) * | 2010-03-12 | 2010-07-21 | 江苏金方圆数控机床有限公司 | Coaxial drive system for two permanent magnet synchronous motors |
| CN103501139A (en) * | 2013-07-26 | 2014-01-08 | 浙江盛迈电气技术有限公司 | Permanent magnet synchronous motor coaxial drive system with phase shifting |
| CN103840622A (en) * | 2014-03-31 | 2014-06-04 | 苏州大学 | Synchronous-driven positioning platform |
| CN104528277A (en) * | 2014-11-27 | 2015-04-22 | 苏州紫金港智能制造装备有限公司 | Dual-motor coaxial-line real-time synchronous dragging system and synchronization method |
| CN104528277B (en) * | 2014-11-27 | 2017-01-11 | 苏州紫金港智能制造装备有限公司 | Dual-motor coaxial-line real-time synchronous dragging system and synchronization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101783633A (en) | Coaxial drive system for two permanent magnet synchronous motors | |
| CN102497157B (en) | Sensor-less control device and control method of sectional-winding linear motor | |
| EP2819298B1 (en) | Position sensorless permanent magnet electrical machine | |
| CN201656881U (en) | Coaxial driving system of two permanent-magnet synchronous motors | |
| CN202475198U (en) | Single-phase brushless direct-current motor with birotor structure | |
| US20150096863A1 (en) | Electrical actuator for vehicle transmission system | |
| CN101369767A (en) | Underwater integrated electric motor thruster | |
| CN105356796A (en) | Permanent magnet brushless DC Motor position sensorless control system | |
| CN102324817A (en) | Electric variable frequency brushless synchronous generating set | |
| EP2632033A2 (en) | Interface module and method for communicating with an electric machine | |
| CN202309428U (en) | Electric frequency converting brushless synchronous generator set | |
| CN204179910U (en) | A kind of electric tool brushless motor structure | |
| CN108880047B (en) | Permanent magnet motor and control method and system for same | |
| CN102291069B (en) | Hybrid excitation synchronous starting system and method of synchronous motor | |
| CN204376565U (en) | The peristaltic pump system that a kind of brushless servo drives | |
| CN103490576B (en) | Three-phase control synchronous self motor | |
| CN202889270U (en) | Angle positioning device using encoder to output absolute position directly | |
| CN102891640B (en) | A kind of angle positioning system utilizing encoder directly to export absolute position | |
| CN202218187U (en) | Hybrid excitation synchronous starting system of synchronous motor and wind driven generator | |
| CN203406757U (en) | Three-phase automatic control synchronous motor | |
| CN206595869U (en) | A kind of alternating current impression servo high-speed motor | |
| JP2011015587A (en) | Motor control system | |
| CN203896111U (en) | Permanent magnetism motor with high magnetic-field adjusting capability | |
| CA2818381C (en) | Cross-interlocked switch type dc electric machine having auxiliary excitation winding and conduction ring and brush | |
| CN103501139A (en) | Permanent magnet synchronous motor coaxial drive system with phase shifting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |