CN106712597A - Driving system applied to motion platform - Google Patents
Driving system applied to motion platform Download PDFInfo
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- CN106712597A CN106712597A CN201710076650.8A CN201710076650A CN106712597A CN 106712597 A CN106712597 A CN 106712597A CN 201710076650 A CN201710076650 A CN 201710076650A CN 106712597 A CN106712597 A CN 106712597A
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- Prior art keywords
- circuit
- controller
- phase
- brushless motor
- driver
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
Abstract
The application provides a driving system applied to a motion platform. The driving system adopts a brushless direct current (DC) motor; the counter electromotive force produced by the brushless DC motor is a square wave or a sinusoidal wave; the counter electromotive force is basically unchanged within a phase shifting period; the output drive torque fluctuation is smaller. Therefore, accurate measurement does not needed to be continuously carried out on the angular position of a rotor of the motor like the prior art, so that a high-accuracy position sensor is not needed, and a low-accuracy Hall sensor only needs to be used; therefore, the cost of the driving system can be lowered.
Description
Technical field
The present invention relates to electromechanical control field, in particular, it is related to a kind of drive system for being applied to vivid platform.
Background technology
Vivid platform, such as multidimensional seat, Spinning, can provide the user the rising synchronous with vision content, under
The innervation experiencings such as drop, left-right and front-back are inclined, rotation, improve the sense of reality of user.
The drive system of existing vivid platform uses permanent magnet ac servo system, and the system includes permanent magnet AC
Servomotor, position sensor and driver, because the counter electromotive force that permanent-magnet alternating current servo motor is produced is sine wave, work as needs
, it is necessary to constantly measure the rotor of permanent-magnet alternating current servo motor when ensureing that the output driving torque of permanent-magnet alternating current servo motor is constant
Angle Position, it is therefore desirable to high-precision position sensor, in the prior art, position sensor is generally adopted by photoelectric encoder
Or rotary transformer.Because the price of high-precision position sensor is higher, the drive system of vivid platform is in turn resulted in
It is relatively costly, be that the application and popularizations of vivid platform exert a certain influence.
Therefore, a kind of drive system of the vivid platform of low cost is needed badly.
The content of the invention
In view of this, the present invention provides a kind of drive system for being applied to vivid platform, dynamic in the prior art to solve
The problem of the drive system high cost of platform.
In order to solve the above technical problems, present invention employs following technical scheme：
A kind of drive system for being applied to vivid platform, including：
DC brushless motor, position sensor, driver and drive disk assembly；Wherein, the DC brushless motor respectively with
The connection of the position sensor, the driver and the drive disk assembly；The position sensor is connected with the driver；
The position sensor, the Angle Position of the rotor for measuring the DC brushless motor, generation position signalling, and
The position signalling is sent to the driver, wherein, the position sensor is Hall sensor；
The driver, for receive external equipment transmission movement instruction and the position sensor send described in
Position signalling, according to the movement instruction and the position signalling, output driving power to the DC brushless motor；
The DC brushless motor, for receiving the driving power, output driving torque to the drive disk assembly；
The drive disk assembly, for receiving the driving torque of the DC brushless motor output, driving vivid platform
Top surface movement.
Preferably, the driver includes：
Telecommunication circuit, controller, three-phase gate drive circuit and three phase full bridge circuit；
The position sensor, the telecommunication circuit, the three-phase gate drive circuit are connected with the controller respectively；
The three phase full bridge circuit is connected respectively with the three-phase gate drive circuit, the DC brushless motor；
The telecommunication circuit, for receiving the movement instruction that the external equipment sends and by movement instruction hair
It is sent to the controller；Wherein, the movement instruction is the instruction for controlling the top surface of the vivid platform to move or rotate；
The controller, for receiving the position signalling that the movement instruction and the position sensor send,
It is according to the movement instruction and the position signalling, generation three-phase pulse bandwidth modulation signals and the three-phase pulse is wide
Degree modulated signal is sent to the three-phase gate drive circuit；
The three-phase gate drive circuit, for the three-phase pulse bandwidth modulation signals to be amplified, and by after amplification
Three-phase pulse bandwidth modulation signals are sent to the three phase full bridge circuit；
The three phase full bridge circuit, for receiving the three-phase pulse bandwidth modulation signals after the amplification, generates and exports
The driving power is to the DC brushless motor.
Preferably, the driver also includes：
Thermal-shutdown circuit；The thermal-shutdown circuit is connected with the controller；
The thermal-shutdown circuit, the temperature for measuring the controller is preset when the temperature of the controller exceedes
During value, send temperature and cross high RST to the controller；
The controller, is additionally operable to receive the temperature and crosses high RST, and stop exporting the three-phase pulse width modulated
Signal.
Preferably, the driver also includes：
Current foldback circuit, the current foldback circuit is connected respectively with the controller, the three phase full bridge circuit；
The current foldback circuit, the size for detecting the electric current for being input to the three phase full bridge circuit, when the electricity
When stream exceedes preset value, the excessive signal of electric current to the controller is sent；
The controller, is additionally operable to receive the excessive signal of the electric current, and stops exporting the three-phase pulse width modulated
Signal.
Preferably, the drive disk assembly includes electric cylinder；
The input of the electric cylinder is connected by shaft coupling with the output shaft of the DC brushless motor；
The output end of the electric cylinder is connected by universal joint with the top surface of the vivid platform.
Preferably, the drive disk assembly includes ball screw assembly,；
The leading screw of the ball screw assembly, is connected by shaft coupling with the output shaft of the DC brushless motor；
The nut of the ball screw assembly, is connected by universal joint with the top surface of the vivid platform.
Preferably, the drive disk assembly includes decelerator and crank；
The input shaft of the decelerator is connected by shaft coupling with the output shaft of the DC brushless motor；
The output shaft of the decelerator is fixedly connected with one end of the crank；
The other end of the crank is connected by universal joint with the top surface of the vivid platform.
Preferably, the power supply unit of the driver includes：
EMC filter circuit, soft starting circuit, current rectifying and wave filtering circuit and alternating current/direct current AC/DC circuits；
The EMC filter circuit and the current rectifying and wave filtering circuit are connected with the soft starting circuit respectively, the rectification filter
Wave circuit is connected with the three phase full bridge circuit, the AC/DC circuits respectively with the EMC filter circuit, the telecommunication circuit,
The controller and the three-phase gate drive circuit are connected.
Compared to prior art, the invention has the advantages that：
The invention provides a kind of drive system for being applied to vivid platform, the drive system uses brush DC electricity
Machine, the counter electromotive force that DC brushless motor is produced is square wave or sine wave, and in a commutating period, counter electromotive force is substantially not
Become, the driving torque fluctuation of output is smaller.Therefore, there is no need to the rotor of continuous accurate measurement motor as prior art
Angle Position, and then no longer need using high-precision position sensor, it is only necessary to using the Hall sensor of low precision, enter
And the cost of drive system can be reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of structural representation of drive system for being applied to vivid platform of offer of the invention；
Fig. 2 be offer of the invention another kind be applied to vivid platform drive system structural representation；
Fig. 3 is the structural representation of the driver of offer of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the invention provides a kind of drive system for being applied to vivid platform, reference picture 1, including：
DC brushless motor 102, position sensor 103, driver 101 and drive disk assembly 104；Wherein, brush DC electricity
Machine 102 is connected with position sensor 103, driver 101 and drive disk assembly 104 respectively；Position sensor 103 and driver 101
Connection；
Position sensor 103, the Angle Position of the rotor for measuring DC brushless motor 102, generation position signalling, and will
Position signalling is sent to driver 101, wherein, position sensor 103 is Hall sensor；
Driver 101, the position letter that movement instruction and position sensor 103 for receiving external equipment transmission send
Number, according to movement instruction and position signalling, output driving power to DC brushless motor 102；
DC brushless motor 102, for receiving driving power, output driving torque to drive disk assembly 104；
Drive disk assembly 104, for receiving the driving torque of the output of DC brushless motor 102, driving the top surface of vivid platform
105 movements.
It should be noted that when position sensor 103 is Hall sensor, it is anti-electronic when DC brushless motor 102
When gesture is square wave, 102 1 swing circles of brshless DC motor only have 6 commutation points, it is only necessary to which 3 Hall sensors can be obtained
The Angle Position of the rotor of DC brushless motor 102.
In the present embodiment, the course of work of all parts is：
To after DC brushless motor 102, DC brushless motor 102 starts to rotate the output driving power of driver 101, produces
To drive disk assembly 104, drive disk assembly drives the top surface 105 of vivid platform to move to driving torque.
The Angle Position of the rotor of the real-time detection DC brushless motor 102 of position sensor 103, generation position signalling, and will
Position signalling is sent to driver 101, and the movement instruction and position that driver 101 sends according to the external equipment for receiving are passed
The position signalling that sensor 103 sends, real-time adjustment is input to the driving power of DC brushless motor 102, and then brush DC electricity
Machine 102 can adjust the rotating speed of rotor, so that drive disk assembly 104 drives the top surface 105 of vivid platform to enter according to default direction
Row movement.
Wherein, movement instruction is the instruction for controlling the top surface 105 of vivid platform to move or rotate, comprising dynamic in movement instruction
Feel direction, distance and the speed of the movement of top surface 105 of platform, or the rotation of top surface 105 of vivid platform direction, rotation speed
Degree and the number of turns of rotation.External equipment can be notebook, computer or mobile phone etc., wherein, movement instruction is manually to be set external
The instruction of standby upper input.
Optionally, in another embodiment of the present invention, drive disk assembly 104 includes electric cylinder；
The input of electric cylinder is connected by shaft coupling with the output shaft of DC brushless motor 102, the output end of electric cylinder
It is connected with the top surface 105 of vivid platform by universal joint.
It should be noted that the input of electric cylinder can also be using other connected modes and DC brushless motor 102
Output shaft connection, the output end of electric cylinder can also be connected by other connected modes with the top surface 105 of vivid platform.
Optionally, in another embodiment of the present invention, drive disk assembly 104 includes ball screw assembly,；
The leading screw of ball screw assembly, is connected by shaft coupling with the output shaft of DC brushless motor 102；
The nut of ball screw assembly, is connected by universal joint with the top surface 105 of vivid platform.
It should be noted that the leading screw of ball screw assembly, can also be using other connected modes and DC brushless motor
102 output shaft connection, the nut of ball screw assembly, can also be connected by other connected modes with the top surface 105 of vivid platform
Connect.
Additionally, the leading screw of ball screw assembly, is connected with the nut of ball screw assembly, by screw thread.
In the case of using ball screw assembly, it is assumed that the pitch of leading screw is about 5mm, and air line distance is about 150mm, one
30 turns of 102 corotating of DC brushless motor in individual complete stroke, will produce 30*6*P pulse, it is sufficient to meet vivid platform essence
Degree needs.
Optionally, in another embodiment of the present invention, reference picture 2, drive disk assembly 104 includes decelerator 106 and crank
107；
The input shaft of decelerator 106 is connected by shaft coupling with the output shaft of DC brushless motor 102；
The output shaft of decelerator 106 is fixedly connected with one end of crank 107；
The other end of crank 107 is connected by universal joint with the top surface 105 of vivid platform.
Specifically, the input shaft of decelerator 106 can also be by the output of other connected modes and DC brushless motor 102
Axle is connected, and the output shaft of decelerator 106 is fixedly connected with one end of crank 107 by connecting shaft, and the other end of crank 107 may be used also
It is connected with the top surface 105 of vivid platform with by other connected modes.
It should be noted that because the rotating speed of DC brushless motor 102 is higher, therefore the offer of DC brushless motor 102
Driving torque is smaller, is not enough to directly drive the top surface 105 of vivid platform, therefore DC brushless motor 102 is connected into deceleration
Device 106, with by the rotating speed of the reduction DC brushless motor 102 of decelerator 106, there is provided larger output torque.
In the case where decelerator 106 and crank 107 is used, it is assumed that the speed reducing ratio of decelerator 106 can reach 100: 1, song
Handle 107 moves 90 degree, then 25 turns of 102 corotating of DC brushless motor in a complete stroke, will produce 25*6*P arteries and veins
Punching, it is sufficient to meet vivid platform precision needs.
Present embodiments provide one kind and be applied to vivid platform drive system, the drive system uses brush DC electricity
Machine, the counter electromotive force that DC brushless motor is produced is square wave or sine wave, and in a commutating period, counter electromotive force is substantially not
Become, the driving torque fluctuation of output is smaller.Therefore, there is no need to the rotor of continuous accurate measurement motor as prior art
Angle Position, and then no longer need using high-precision position sensor, it is only necessary to using the Hall sensor of low precision, enter
And the cost of drive system can be reduced.
Low precision Hall sensor in the present embodiment by after electric cylinder, ball screw assembly, or decelerator, Ke Yiti
For sufficiently high positional precision, the need for meeting vivid platform.
Additionally, the DC brushless motor used in this programme is easily controllable, therefore moved in the prior art also without using
The driver of high-speed computation that sense platform is used, using the relatively low low speed computing of price driver just, also reduce innervation
The cost of platform.
Optionally, in another embodiment of the present invention, reference picture 3, driver 101 includes：
Telecommunication circuit 1011, controller 1012, three-phase gate drive circuit 1013 and three phase full bridge circuit 1014；
Position sensor 103, telecommunication circuit 1011, three-phase gate drive circuit 1013 are connected with controller 1012 respectively；
Three phase full bridge circuit 1014 is connected respectively with three-phase gate drive circuit 1013, DC brushless motor 102；
Telecommunication circuit 1011, for receiving the movement instruction of external equipment transmission and movement instruction being sent into controller
1012；Wherein, movement instruction is the instruction for controlling the top surface 105 of vivid platform to move or rotate；
Controller 1012, for receiving the position signalling that movement instruction and position sensor 103 send, refers to according to motion
Order and position signalling, generation three-phase pulse bandwidth modulation signals, and three-phase pulse bandwidth modulation signals are sent to three-phase door
Pole drive circuit 1013；
Three-phase gate drive circuit 1013, for three-phase pulse bandwidth modulation signals to be amplified, and by the three-phase after amplification
Pulse width modulating signal is sent to three phase full bridge circuit 1014；
Three phase full bridge circuit 1014, for receiving the three-phase pulse bandwidth modulation signals after amplifying, generates and output driving
Power is to DC brushless motor 102.
Specifically, the course of work of all parts is：
After telecommunication circuit 1011 receives the movement instruction that external equipment sends, movement instruction is sent to controller 1012；
After the generation position signalling of position sensor 103, position signalling is sent to controller 1012, controller 1012 is according to movement instruction
And position signalling, three-phase pulse bandwidth modulation signals are generated, and three-phase pulse bandwidth modulation signals are sent to three-phase gate pole
Drive circuit 1013, three-phase gate drive circuit 1013 amplifies three-phase pulse bandwidth modulation signals, specifically, by three-phase pulse
Bandwidth modulation signals amplify, will controller 1012 output voltage be amplified, output voltage amplify after, also can just improve
The ability of output current.Three-phase pulse bandwidth modulation signals after amplification are sent to three phase full bridge circuit 1014, three phase full bridge
Circuit 1014 receives the three-phase pulse bandwidth modulation signals after amplifying, and generates and output driving power is to DC brushless motor 102,
And then DC brushless motor 102 can output driving torque to drive disk assembly 104.
It should be noted is that, in the present embodiment, telecommunication circuit, controller, three-phase gate-drive electricity in driver 101
The quantity of road and three phase full bridge circuit is respectively one, additionally, telecommunication circuit, controller, three-phase gate-drive in driver 101
The quantity of circuit and three phase full bridge circuit can be two or three, now, have inside driver 101 one, two or
It is the global facility in three Fig. 3, it may be said that have one, two or three sub- driver element inside driver 101, often
The internal structure of individual driver element is identical with the structure in Fig. 3.
Additionally, reference picture 3, in order to protect the service life of driver, driver 101 also includes：
Thermal-shutdown circuit 1015；Thermal-shutdown circuit 1015 is connected with controller 1012；
Thermal-shutdown circuit 1015, for the temperature of Mersure Controler 1012, presets when the temperature of controller 1012 exceedes
During value, send temperature and cross high RST to controller 1012；
Controller 1012, is additionally operable to reception temperature and crosses high RST, and stop exporting three-phase pulse bandwidth modulation signals.
Specifically, the temperature of the real-time measuring controller 1012 of thermal-shutdown circuit 1015, when the temperature of controller 1012 surpasses
When crossing preset value, send temperature and cross high RST to controller 1012, now controller stops output three-phase pulse width modulated letter
Number, i.e., controller 1012 is enforceable is stopped.
Optionally, in another embodiment of the present invention, driver 101 also includes：
Current foldback circuit 1016, current foldback circuit 1016 connects respectively with controller 1012, three phase full bridge circuit 1014
Connect；
Current foldback circuit 1016, the size for detecting the electric current for being input to three phase full bridge circuit 1014, when electric current is super
When crossing preset value, the excessive signal of electric current to controller 1012 is sent；
Controller 1012, is additionally operable to receive the excessive signal of electric current, and stop exporting three-phase pulse bandwidth modulation signals.
Specifically, dc bus is three phase full bridge circuit 1014 providing electric current, the detection of current foldback circuit 1016 is input to
The size of the electric current of three phase full bridge circuit 1014, that is, detect the size of current of dc bus, when the electric current of dc bus exceedes in advance
If during value, current foldback circuit 1016 sends the excessive signal of electric current to controller 1012, controller 1012 stops output three-phase arteries and veins
Bandwidth modulation signals are rushed, i.e., controller 1012 is enforceable is stopped.
In the present embodiment, controller 1012 passes through the movement instruction and position signalling for receiving, and generation three-phase pulse is wide
Degree modulated signal, and three-phase pulse bandwidth modulation signals are sequentially inputted to three-phase gate drive circuit 1013 and three phase full bridge electricity
Road 1014, and then driving power can be input into for DC brushless motor 102.Additionally, being additionally provided with overcurrent protection in the present embodiment
Circuit 1016 and thermal-shutdown circuit 1015, ensure that driver is preferably operated.
Optionally, in another embodiment of the present invention, the power supply unit of driver 101 includes：
EMC filter circuit, soft starting circuit, current rectifying and wave filtering circuit and alternating current/direct current AC/DC circuits；
EMC filter circuit and current rectifying and wave filtering circuit are connected with soft starting circuit respectively, current rectifying and wave filtering circuit and three phase full bridge
Circuit 1014 is connected, AC/DC circuits respectively with EMC filter circuit, telecommunication circuit 1011, controller 1012 and three-phase gate-drive
Circuit 1013 is connected.
Specifically, AC220V or AC380V AC powers are input in EMC filter circuit, the interference on power line is filtered,
Soft starting circuit is then sent to, to reduce upper electric rush of current, current rectifying and wave filtering circuit is then sent to, produces HVDC female
Line voltage, is transported in the three phase full bridge circuit 1014 of driver 101 by dc bus.
Meanwhile, the alternating current of EMC filter circuit output is also fed to AC/DC circuits, produces low-voltage dc power supply, is communication
Circuit 1011, controller 1012 and three-phase gate drive circuit 1013 are powered, thermal-shutdown circuit 1015 and current foldback circuit
1016 power supplies.
Additionally, also including brake energy consuming circuitry in vivid platform, brake energy consuming circuitry is connected with controller 1012, brake consumption
Energy circuit is used to ensure ceiling voltage of the DC bus-bar voltage no more than design.When DC brushless motor 102 drives potential energy load
Or inertia load, and when being braked, DC brushless motor 102 occurs the situation of regenerative braking, is operated in generating state,
The energy of recovery can raise the voltage of dc bus, so needing to increase brake energy consuming circuitry.When controller 1012 is monitored
After DC bus-bar voltage exceedes higher limit, brake energy consuming circuitry is opened, decline DC bus-bar voltage, when the door for dropping to setting
After limit value, brake energy consuming circuitry is closed.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (8)
1. a kind of drive system for being applied to vivid platform, it is characterised in that including：
DC brushless motor, position sensor, driver and drive disk assembly；Wherein, the DC brushless motor respectively with it is described
The connection of position sensor, the driver and the drive disk assembly；The position sensor is connected with the driver；
The position sensor, the Angle Position of the rotor for measuring the DC brushless motor, generation position signalling, and by institute
State position signalling and be sent to the driver, wherein, the position sensor is Hall sensor；
The driver, the position that movement instruction and the position sensor for receiving external equipment transmission send
Signal, according to the movement instruction and the position signalling, output driving power to the DC brushless motor；
The DC brushless motor, for receiving the driving power, output driving torque to the drive disk assembly；
The drive disk assembly, for receiving the driving torque of the DC brushless motor output, driving the top of vivid platform
Move in face.
2. drive system according to claim 1, it is characterised in that the driver includes：
Telecommunication circuit, controller, three-phase gate drive circuit and three phase full bridge circuit；
The position sensor, the telecommunication circuit, the three-phase gate drive circuit are connected with the controller respectively；It is described
Three phase full bridge circuit is connected respectively with the three-phase gate drive circuit, the DC brushless motor；
The telecommunication circuit, for receiving the movement instruction that the external equipment sends and being sent to the movement instruction
The controller；Wherein, the movement instruction is the instruction for controlling the top surface of the vivid platform to move or rotate；
The controller, for receiving the position signalling that the movement instruction and the position sensor send, according to
The movement instruction and the position signalling, generation three-phase pulse bandwidth modulation signals, and the three-phase pulse width is adjusted
Signal processed is sent to the three-phase gate drive circuit；
The three-phase gate drive circuit, for the three-phase pulse bandwidth modulation signals to be amplified, and by the three-phase after amplification
Pulse width modulating signal is sent to the three phase full bridge circuit；
The three phase full bridge circuit, for receiving the three-phase pulse bandwidth modulation signals after the amplification, generates and exports described
Driving power is to the DC brushless motor.
3. drive system according to claim 2, it is characterised in that the driver also includes：
Thermal-shutdown circuit；The thermal-shutdown circuit is connected with the controller；
The thermal-shutdown circuit, the temperature for measuring the controller, when the temperature of the controller exceedes preset value,
Send temperature and cross high RST to the controller；
The controller, is additionally operable to receive the temperature and crosses high RST, and stop exporting the three-phase pulse bandwidth modulation signals.
4. drive system according to claim 2, it is characterised in that the driver also includes：
Current foldback circuit, the current foldback circuit is connected respectively with the controller, the three phase full bridge circuit；
The current foldback circuit, the size for detecting the electric current for being input to the three phase full bridge circuit, when the electric current is super
When crossing preset value, the excessive signal of electric current to the controller is sent；
The controller, is additionally operable to receive the excessive signal of the electric current, and stops exporting the three-phase pulse bandwidth modulation signals.
5. drive system according to claim 1, it is characterised in that the drive disk assembly includes electric cylinder；
The input of the electric cylinder is connected by shaft coupling with the output shaft of the DC brushless motor；
The output end of the electric cylinder is connected by universal joint with the top surface of the vivid platform.
6. drive system according to claim 1, it is characterised in that the drive disk assembly includes ball screw assembly,；
The leading screw of the ball screw assembly, is connected by shaft coupling with the output shaft of the DC brushless motor；
The nut of the ball screw assembly, is connected by universal joint with the top surface of the vivid platform.
7. drive system according to claim 1, it is characterised in that the drive disk assembly includes decelerator and crank；
The input shaft of the decelerator is connected by shaft coupling with the output shaft of the DC brushless motor；
The output shaft of the decelerator is fixedly connected with one end of the crank；
The other end of the crank is connected by universal joint with the top surface of the vivid platform.
8. drive system according to claim 2, it is characterised in that the power supply unit of the driver includes：
EMC filter circuit, soft starting circuit, current rectifying and wave filtering circuit and alternating current/direct current AC/DC circuits；
The EMC filter circuit and the current rectifying and wave filtering circuit are connected with the soft starting circuit respectively, the rectifying and wave-filtering electricity
Road is connected with the three phase full bridge circuit, the AC/DC circuits respectively with the EMC filter circuit, telecommunication circuit, described
Controller and the three-phase gate drive circuit are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076650.8A CN106712597A (en) | 2017-02-13 | 2017-02-13 | Driving system applied to motion platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076650.8A CN106712597A (en) | 2017-02-13 | 2017-02-13 | Driving system applied to motion platform |
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| CN106712597A true CN106712597A (en) | 2017-05-24 |
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Cited By (1)
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| CN108744472A (en) * | 2018-04-19 | 2018-11-06 | 福建工程学院 | Ride equipment and its control method based on virtual reality technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744472A (en) * | 2018-04-19 | 2018-11-06 | 福建工程学院 | Ride equipment and its control method based on virtual reality technology |
| CN108744472B (en) * | 2018-04-19 | 2019-11-15 | 福建工程学院 | Ride equipment and its control method based on virtual reality technology |
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Application publication date: 20170524 |
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