CN209654430U - Magnetic suspension bearing control system - Google Patents
Magnetic suspension bearing control system Download PDFInfo
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- CN209654430U CN209654430U CN201920232380.XU CN201920232380U CN209654430U CN 209654430 U CN209654430 U CN 209654430U CN 201920232380 U CN201920232380 U CN 201920232380U CN 209654430 U CN209654430 U CN 209654430U
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Abstract
This application involves a kind of magnetic suspension bearing control systems, comprising: magnetic levitation bearing system；Receive floating axle instruction, it is instructed according to floating axle, substep sends floating information to each bearing of magnetic levitation bearing system, when each bearing is powered on all in accordance with the completion of floating information, the magnetically suspended bearing of rotation control signal is sent to the shaft of magnetic levitation bearing system, floating information is powered on for controlling each bearing, and rotation control signal is for controlling shaft rotation；Magnetically suspended bearing connects magnetic levitation bearing system.Above-mentioned magnetic suspension bearing control system; load sudden change amplitude when powering on each time is significantly reduced in such a way that above-mentioned substep powers on; so that the variable quantity of electric current is smaller in the case where load variation; avoid the occurrence of the excessive triggering overcurrent protection of curent change; the case where causing magnetic levitation bearing system floating axle to fail, has stronger functional reliability compared with traditional magnetic levitation bearing system control method.
Description
Technical field
This application involves technical field of bearings, more particularly to a kind of magnetic suspension bearing control system.
Background technique
Magnetic suspension bearing (Magnetic Bearing) system be it is a kind of using magneticaction by rotor suspension in aerial, make
There is no the bearing arrangement of Mechanical Contact between rotor and stator.A set of magnetic levitation bearing system generally uses two radial direction magnetic bearings
Come to carry out suspension support to shaft with an axial magnetic bearing, so that shaft is run in oil-free, friction free environment, there is height
The advantages that speed, small energy height and noise.
Magnetic levitation bearing system passes through DC power supply generally as bearing controller power supply, and high-power magnetic-suspension bearing system
In system, shaft is all universal heavier.It therefore, is that bearing is powered to realize floating axle by traditional magnetic levitation bearing system control method
During, since load sudden change causes the output electric current of DC power supply bigger, it is easy triggering power supply overcurrent protection, so that turning
Axis cannot reliable floating.Traditional magnetic levitation bearing system control method haves the shortcomings that functional reliability is low.
Utility model content
Based on this, it is necessary to for the low problem of traditional magnetic levitation bearing system control method functional reliability, provide
A kind of magnetic suspension bearing control system.
In one embodiment, magnetic suspension bearing control system further includes power supply device, described in the power supply device connection
Magnetically suspended bearing.
In one embodiment, the power supply device includes power supply processing circuit and current foldback circuit, at the power supply
Current foldback circuit described in circuit connection is managed, the current foldback circuit connects the magnetically suspended bearing.
In one embodiment, magnetic suspension bearing control system further includes suspension precision acquisition device, the suspension precision
Acquisition device connects the magnetically suspended bearing.
In one embodiment, the suspension precision acquisition device is displacement sensor.
In one embodiment, institute's displacement sensors are eddy current displacement sensor.
In one embodiment, magnetic suspension bearing control system further includes alarm, and the alarm connects the magnetcisuspension
Floating bearing controller.
In one embodiment, the alarm is phonetic alarm.
In one embodiment, the magnetically suspended bearing is micro-control unit.
In one embodiment, the magnetic levitation bearing system is suspension of five-freedom degree magnetic bearing arrangement.
Above-mentioned magnetic suspension bearing control system, when receiving floating axle instruction, step by step to each axis of magnetic levitation bearing system
It holds and sends floating information, to realize the substep power on operation to each bearing, completed when each bearing is instructed all in accordance with floating axle
When powering on, control shaft rotation works.It is significantly reduced when powering on each time in such a way that above-mentioned substep powers on
Load sudden change amplitude avoids the occurrence of that curent change is excessive to be triggered so that the variable quantity of electric current is smaller in the case where load variation
The case where stream is protected, and magnetic levitation bearing system floating axle is caused to fail, has compared with traditional magnetic levitation bearing system control method
There is stronger functional reliability.
Detailed description of the invention
Fig. 1 is magnetic suspension bearing control system architecture schematic diagram in an embodiment；
Fig. 2 is the current waveform schematic diagram of magnetic levitation bearing system in an embodiment；
Fig. 3 is the current waveform schematic diagram of magnetic levitation bearing system in another embodiment；
Fig. 4 is magnetic suspension bearing control system architecture schematic diagram in another embodiment；
Fig. 5 is magnetic levitation bearing system structural schematic diagram in an embodiment；
Fig. 6 is magnetic suspension bearing control system architecture schematic diagram in another embodiment；
Fig. 7 is magnetic levitation bearing system control flow chart in an embodiment；
Fig. 8 is magnetic suspension bearing control system architecture schematic diagram in another embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to disclosure of this application more saturating
It is thorough comprehensive.
Referring to Fig. 1, a kind of magnetic levitation bearing system control, comprising: magnetic levitation bearing system 120；Floating axle instruction is received,
Instructed according to floating axle, step by step to each bearing of magnetic levitation bearing system 120 send floating information, when each bearing all in accordance with rise
When floating information completion powers on, the magnetically suspended bearing of rotation control signal is sent to the shaft of magnetic levitation bearing system 120
110, floating information is powered on for controlling each bearing, and rotation control signal is for controlling shaft rotation；Magnetic suspension bearing control
Device 110 connects magnetic levitation bearing system 120.
Specifically, floating axle instruction is that control magnetic levitation bearing system 120 powers on the instruction to work.Floating axle instruction
Type is not unique, for example, in one embodiment, be provided with and start switch on magnetically suspended bearing 110, when with
When family needs to be worked using magnetic levitation bearing system 120, unlatching will be directly started switch, in the present embodiment, will be floated
Axis instructs generated enabling signal, magnetic levitation bearing system 120 when as user starts switch to receive enabling signal
It indicates to receive corresponding floating axle instruction.It is appreciated that in other embodiments, since magnetic levitation bearing system 120 is logical
The device of the suspension powered on for bearing realize to shaft and rotation control is crossed, corresponding floating axle instruction can also be and magnetic suspension
Power supply signal transmitted by the power supply device that bearing controller 110 is connected.When user needs magnetic levitation bearing system 120 to carry out
When work, the power switch of power supply device is set to by opening, power switch can send electricity to magnetically suspended bearing 110
The instruction of source signal, as floating axle.
It is instructed according to floating axle, sends floating information to each bearing of magnetic levitation bearing system 120 step by step, floating information is used
It is powered in controlling each bearing.Substep as divides different to each bearing of magnetic levitation bearing system 120 transmission floating information
Batch sends floating information to each bearing respectively, for example, sending in two steps to each bearing of magnetic levitation bearing system 120
Floating information (sending floating information to each bearing in two batches), which can be, sends floating information to a part of bearing first, when this
A part of bearing powers on according to the completion of floating information and then sends floating information, control other one to another part bearing
Split bearing is powered on.When magnetically suspended bearing 110 receives floating axle instruction, instructed according to floating axle first to magnetcisuspension
A part of bearing of floating bearing arrangement 120 sends floating information, controls a part of bearing and first powers on and works.When the part axis
It holds after completion powers on, magnetically suspended bearing 110 sends floating information to other bearings again, completes the upper of other bearings
Electrically operated, after each bearing is completed to power on, due to the effect of electromagnetic force, the shaft of magnetic levitation bearing system 120 will
In suspended state.It is appreciated that according to number of bearings and user demand etc. in a set of magnetic levitation bearing system 120, it can
Floating information is sent to each bearing with a point different step number, completes working on power for all bearings.
It is appreciated that in one embodiment, floating information is current signal, when magnetically suspended bearing 110 connects
It when receiving floating axle instruction, is powered first to a part of bearing, is then powered to other bearings, magnetic levitation bearing system can be realized
120 substep floating axle operation.Referring to Fig. 2, for the current waveform figure of magnetic suspension bearing control system in an embodiment, Cong Tuzhong
It can be seen that when magnetically suspended bearing 110 controls each bearing while powering on the floating axle control for realizing shaft, due to negative
Carry excessive, the immediate current of generation can be more than the corresponding current value of overcurrent early warning, be easy overcurrent protection of setting out, lead to magnetic suspension shaft
Hold the floating axle control failure of system 120.Referring to Fig. 3, for the corresponding current waveform figure of substep control strategy in the present embodiment, from
It can be seen that in figure, under the control of substep floating axle, the variation of electric current can be smaller, does not exceed the corresponding current value of overcurrent early warning.
When each bearing is powered on all in accordance with the completion of floating information, sends and rotate to the shaft of magnetic levitation bearing system 120
Control signal.Rotation control signal is for controlling shaft rotation.When magnetically suspended bearing 110 is right according to floating axle instruction substep
After each bearing completion powers on, under the action of electromagnetic force, the shaft of magnetic levitation bearing system 120 will be in suspension
State completes corresponding work, at this time magnetically suspended bearing 110 in order to enable the shaft of magnetic levitation bearing system 120 rotates
Rotation control signal, control shaft rotation will be sent to shaft.
It should be pointed out that in one embodiment, 110 substep of magnetically suspended bearing is to magnetic levitation bearing system
When 120 each bearing sends floating information, after can be every transmission for carrying out a floating information, all can be once
The no judgement for completing to power on, specifically judgment method is when magnetically suspended bearing 110 sends floating letter to corresponding bearing
After breath, the suspension precision for obtaining the shaft of magnetic levitation bearing system 120 is judged, is corresponded to when the suspension precision of shaft meets
Default suspension precision can indicate that the completion of corresponding shaft powers on.In another embodiment, it can also be magnetic suspension shaft
Hold 110 substep of controller to each bearing of magnetic levitation bearing system 120 send floating information when, only in final step floating
The judgement whether each bearing powers on all in accordance with the completion of floating information is just carried out after the transmission of information.That is, carry out
As long as being continued directly to down after the floating information of the corresponding bearing of previous step is sent when substep sends floating information to each bearing
The floating information of the corresponding bearing of one step is sent, until all bearings receive floating information, magnetic suspension bearing control
Device 110 can just obtain the suspension precision of shaft, judge whether to power on completion according to suspension precision and default suspension precision.
Above-mentioned magnetic suspension bearing control system is significantly reduced negative when powering on each time by way of powering on step by step
Mutation amplitude is carried, so that the variable quantity of electric current is smaller in the case where load variation, avoids the occurrence of the excessive triggering overcurrent of curent change
The case where protecting, 120 floating axle of magnetic levitation bearing system caused to fail, with traditional 120 control method phase of magnetic levitation bearing system
Than with stronger functional reliability.
In one embodiment, referring to Fig. 4, magnetic suspension bearing control system further includes power supply device 130, power supply device
130 connection magnetically suspended bearings 110.
Specifically, power supply device 130 is used to power for magnetic levitation bearing system 120, when magnetically suspended bearing 110 connects
After receiving floating axle instruction, the electric current that power supply device 130 exports can be transferred to corresponding axis by magnetically suspended bearing 110
It holds, realizes the power on operation to bearing.Electromagnetic force can be generated after bearing powers on, and then make magnetic under the action of electromagnetic force
The shaft of suspension bearing system 120 suspends, and shaft is in oil-free, friction free ring when in order under the action of rotation control signal
It is run in border.
In one embodiment, referring to Fig. 5, magnetic levitation bearing system 120 is suspension of five-freedom degree magnetic bearing arrangement, i.e.,
Magnetic levitation bearing system 120 include the first transverse bearing, the second transverse bearing, axial bearing and shaft, the first transverse bearing and
Second transverse bearing is respectively arranged at the opposite end of shaft.
Specifically, magnetic levitation bearing system 120 includes two transverse bearings and an axial bearing, two of them radial axle
Hold the opposite end for being located at shaft, respectively the first transverse bearing and the second transverse bearing.For magnetcisuspension in the present embodiment
Floating bearing arrangement 120 is classified as 5 freedom degrees according to the freedom degree of different bearings, i.e. the X freedom degree of the first transverse bearing and
Y freedom degree, the X freedom degree of the second transverse bearing and the one degree of freedom of Y freedom degree and axial bearing.Refer to according to floating axle
It enables, when sending floating information to the first transverse bearing, the second transverse bearing and axial bearing in two steps, can be first to first
Transverse bearing or the second transverse bearing send floating information, when the first transverse bearing or the second transverse bearing are complete according to floating information
Send upper power information at power on operation and then to another transverse bearing and axial bearing, realize another transverse bearing and
Axial bearing powers on, i.e., realizes the floating control of two freedom degrees first, then realizes the floating control of three degree of freedom, with
Reach the control of substep floating, reduce instantaneous current value, realizes that magnetic levitation bearing system 120 stablizes the purpose of floating control.Another
In one embodiment, it can also be that bearing sends floating information in the axial direction first, realize the floating operation of one degree of freedom, then
Floating information is sent simultaneously to the first transverse bearing and the second transverse bearing, controls the first transverse bearing and the second transverse bearing
It powers on, realizes the floating control of four freedom degrees, it is same that there is reduction instantaneous current value, realize that magnetic levitation bearing system 120 is steady
Determine the function of floating control.
In one embodiment, can also be instructed according to floating axle, point three steps to the first transverse bearing, the second transverse bearing and
Axial bearing sends floating information.Specifically, three steps is divided to send to the first transverse bearing, the second transverse bearing and axial bearing
Floating information, the power on operation for as dividing three steps to realize magnetic levitation bearing system 120, the first transverse bearing, the second transverse bearing and
Powering on for axial bearing individually carries out, and to realize reduction instantaneous current value, magnetic levitation bearing system 120 is made to stablize floating
Function.It is appreciated that magnetically suspended bearing 110 is sent to the first transverse bearing, the second transverse bearing and axial bearing
The step of floating information is not unique, powers on completion and then to next axis in a upper bearing as long as can be realized
It holds and sends floating information, realize the electric control upper respectively of the first transverse bearing, the second transverse bearing and axial bearing.
To be the floating for realizing the corresponding one degree of freedom of axial bearing first, corresponding two freedom of the first transverse bearing are then realized
The floating of degree finally realizes the floating etc. of corresponding two freedom degrees of the second transverse bearing.
In other embodiments, can lead to for other type magnetic levitation bearing systems 120 with different number of bearings
Above-mentioned similar method is crossed, realizes that point three steps carry out upper electric control to different bearings, to reduce instantaneous current value, realizes magnetcisuspension
Floating bearing arrangement 120 stablizes the function of floating control.Further, for the magnetic suspension bearing system with greater number of bearing
System 120, can also be that a point other step numbers are controlled, for example, four steps, five steps etc., real as long as can reach reduction instantaneous current value
Existing magnetic levitation bearing system stablizes the effect of floating control.
In one embodiment, referring to Fig. 6, magnetic suspension bearing control system is additionally provided with suspension precision acquisition device
140, suspension precision acquisition device 140 connects magnetically suspended bearing 110.
In conjunction with refering to Fig. 7, floating information is sent to the first transverse bearing, the second transverse bearing and axial bearing in two steps
When, send floating information to the first transverse bearing and axial bearing simultaneously first, realize the floating of three degree of freedom, then again to
Second transverse bearing sends the floating of two freedom degrees of floating information realization, and suspension precision acquisition device 140 is used for when acquisition magnetic
First suspension precision of the shaft of suspension bearing system 120.It should be pointed out that in one embodiment, suspension precision acquisition
Device 140 is displacement sensor, the application in order to facilitate understanding, with suspension precision acquisition device 140 is below displacement sensing
Device is explained.After the first transverse bearing and axial bearing are powered on according to floating information, in the work of electromagnetic force
Under, magnetic levitation bearing system 120 can be made to suspend accordingly.Magnetic levitation bearing system 120 is additionally provided with suspension precision
Acquisition device 140, when shaft suspends under the action of electromagnetic force, suspension precision acquisition device 140 can acquire shaft
Displacement information, be denoted as the first suspension precision, and suspend precision acquisition device 140 can by collect first suspend essence
Degree is sent to magnetically suspended bearing 110 and is analyzed, thus judge be when the first transverse bearing and axial bearing power on
It is no so that shaft rise floating to corresponding position.In other embodiments, it can also be and shaft deflection reference detected by sensor
The range information is denoted as the first suspension precision, and the first obtained suspension precision is sent to by the range information of equilbrium position
Magnetically suspended bearing 110 is analyzed, and judges whether the first suspension precision meets the first default suspension precision and (namely sentence
Whether the disconnected range information collected is less than the first default suspension precision).
It should be pointed out that the acquisition of suspension precision and judgment method are not uniquely, to be not limited in above-mentioned two
Method shown in embodiment, as long as can reasonably indicate that the first transverse bearing and axial bearing power on front and back, shaft phase
Change in location situation.It is appreciated that the type of suspension precision acquisition device 140 is not that uniquely, can be current vortex
Displacement sensor, inductive displacement transducer, capacitance displacement sensor and photoelectric displacement sensor etc., as long as being capable of reasonable table
Show the change in location situation of shaft.
Further, in one embodiment, please continue to refer to Fig. 6, magnetic suspension bearing control system is additionally provided with alarm
Device 150, alarm 150 connect magnetically suspended bearing 110.
In conjunction with refering to Fig. 7, alarm 150 is used for when the first suspension precision is unsatisfactory for the first default suspension precision, is issued
Warning message.Specifically, when sensor send the first suspension precision be unsatisfactory for the first default suspension precision, illustrate in the first diameter
In the case where powering on to bearing and axial bearing, shaft is not made to be suspended to corresponding position.If magnetically suspended bearing
110 continue to send floating axle instruction to the second transverse bearing, execute subsequent operation, will be unable to guarantee magnetic levitation bearing system 120
Safe and stable operation, at this time magnetically suspended bearing 110 will control 150 alert of alarm inform user,
In order to which user takes corresponding solution in time.Similarly, it is balanced by shaft deflection reference of the first default suspension precision
For the distance of position and the first default suspension precision are 10um, when the distance of collected shaft deflection reference equilbrium position is believed
When breath is greater than or equal to 10um, magnetically suspended bearing 110 will alert informing user.It is appreciated that at it
In its embodiment, it can also be when the first suspension precision is unsatisfactory for the first default suspension precision, magnetically suspended bearing 110
It directly cuts off the power, the operation of magnetic levitation bearing system 120 is interrupted, to guarantee the safety of magnetic levitation bearing system 120.By right
Rotating shaft position after magnetic levitation bearing system 120 powers on is analyzed and determined, when shaft is not suspended to corresponding position,
It can make a response in time, effectively improve the operational reliability of magnetic levitation bearing system 120.
It should be pointed out that the type of alarm 150 is not that uniquely, can be phonetic alarm or other types of
Alarm per family may be used as long as the information that shaft can not be suspended into corresponding position is told to use.Further, alarm 150
Setting position be not yet it is unique, can be set inside magnetic levitation bearing system 120, be also possible to dress of individually alarming
It sets, per family may be used as long as the information that shaft can not be suspended into corresponding position is told to use.
In one embodiment, suspension precision acquisition device 140 is also used to obtain the second suspension precision of shaft.Specifically
Ground, after being powered on above-mentioned first transverse bearing and axial bearing, the first suspension precision of acquisition is similar, is obtained by sensor
The suspension precision of shaft is taken, is then compared and analyzed with the second default suspension precision, in order to judge on the second transverse bearing
After electricity, whether shaft can reach corresponding levitation position.Detailed process is similar to the above embodiments, and details are not described herein.
Alarm 150 is also used to when the second suspension precision is unsatisfactory for the second default suspension precision, alert.Together
Sample, when sensor send the second suspension precision be unsatisfactory for the second default suspension precision, illustrate to power in the second transverse bearing
In the case where, do not make shaft be suspended to corresponding position.At this point, magnetically suspended bearing 110 is by alert
User is informed, to guarantee the safe and stable operation of magnetic levitation bearing system 120.In the present embodiment, when second step controls second
When transverse bearing powers on, the detection of shaft suspension precision is also carried out, judges whether shaft is suspending stabilized, further improves magnetcisuspension
The operational reliability of floating bearing arrangement 120.
It should be pointed out that in one embodiment, referring to Fig. 8, power supply device 130 includes power supply processing circuit 131
With current foldback circuit 132, power supply processing circuit 131 connects current foldback circuit 132, and current foldback circuit 132 connects magnetcisuspension
Floating bearing controller 110.Power supply processing circuit 131 can be handled input power, obtain being suitble to magnetic levitation bearing system
120 generate electromagnetic force, realize the DC power supply of floating axle control.When heavier-weight (the loading larger) of shaft, may lead
The instantaneous output current value for sending a telegraph source device 130 is excessive, in order to guarantee the safe and stable fortune of 120 system of magnetic levitation bearing system
Row, will trigger overcurrent protection, directly cut off the power, fall the shaft of magnetic levitation bearing system 120, at this time to prevent magnetic
The operation of suspension bearing system 120 effectively improves the safety of magnetic levitation bearing system 120.
Further, in one embodiment, magnetically suspended bearing 110 is micro-control unit
(Microcontroller Unit, MCU).MCU is that one is central processing unit (Central Process Unit, CPU)
Frequency and specification do appropriate reduction, and by memory (memory), counter (Timer), USB, A/D conversion, UART, PLC,
The perimeter interfaces such as DMA or even LCD driving circuit all integrate the computer for forming chip-scale on a single chip, answer to be different
Various combination control is done with occasion.In the present embodiment, control unit is adopted as magnetically suspended bearing, and there is control
Highly reliable and easy to accomplish advantage.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of magnetic suspension bearing control system characterized by comprising
Magnetic levitation bearing system；
Floating axle instruction is received, is instructed according to the floating axle, sends floating information to each bearing of magnetic levitation bearing system step by step,
When each bearing is powered on all in accordance with floating information completion, the shaft of Xiang Suoshu magnetic levitation bearing system sends rotation
The magnetically suspended bearing of signal is controlled, the floating information is powered on for controlling each bearing, the rotation control signal
For controlling the shaft rotation；
The magnetically suspended bearing connects the magnetic levitation bearing system.
2. magnetic suspension bearing control system according to claim 1, which is characterized in that the system also includes power supply dresses
It sets, the power supply device connects the magnetically suspended bearing.
3. magnetic suspension bearing control system according to claim 2, which is characterized in that the power supply device includes at power supply
Circuit and current foldback circuit are managed, the power supply processing circuit connects the current foldback circuit, and the current foldback circuit connects
Connect the magnetically suspended bearing.
4. magnetic suspension bearing control system according to claim 3, which is characterized in that the system also includes suspension precision
Acquisition device, the suspension precision acquisition device connect the magnetically suspended bearing.
5. magnetic suspension bearing control system according to claim 4, which is characterized in that the suspension precision acquisition device is
Displacement sensor.
6. magnetic suspension bearing control system according to claim 5, which is characterized in that institute's displacement sensors are current vortex
Displacement sensor.
7. magnetic suspension bearing control system according to claim 4, which is characterized in that the system also includes alarm,
The alarm connects the magnetically suspended bearing.
8. magnetic suspension bearing control system according to claim 7, which is characterized in that the alarm is audio alert
Device.
9. magnetic suspension bearing control system according to claim 1, which is characterized in that the magnetically suspended bearing is
Micro-control unit.
10. magnetic suspension bearing control system according to claim 1, which is characterized in that the magnetic levitation bearing system is
Suspension of five-freedom degree magnetic bearing arrangement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232380.XU CN209654430U (en) | 2019-02-21 | 2019-02-21 | Magnetic suspension bearing control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232380.XU CN209654430U (en) | 2019-02-21 | 2019-02-21 | Magnetic suspension bearing control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630546A (en) * | 2019-02-21 | 2019-04-16 | 珠海格力电器股份有限公司 | Magnetic levitation bearing system control method, device and magnetic suspension bearing control system |
| CN113700747A (en) * | 2021-09-27 | 2021-11-26 | 珠海格力电器股份有限公司 | Levitation control device and method of magnetic levitation system and magnetic levitation system |
-
2019
- 2019-02-21 CN CN201920232380.XU patent/CN209654430U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630546A (en) * | 2019-02-21 | 2019-04-16 | 珠海格力电器股份有限公司 | Magnetic levitation bearing system control method, device and magnetic suspension bearing control system |
| CN109630546B (en) * | 2019-02-21 | 2023-08-08 | 珠海格力电器股份有限公司 | Magnetic suspension bearing system control method and device |
| CN113700747A (en) * | 2021-09-27 | 2021-11-26 | 珠海格力电器股份有限公司 | Levitation control device and method of magnetic levitation system and magnetic levitation system |
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