CN207573076U - A kind of stand-by power supply electric power system of magnetic suspension motor - Google Patents
A kind of stand-by power supply electric power system of magnetic suspension motor Download PDFInfo
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- CN207573076U CN207573076U CN201721718037.3U CN201721718037U CN207573076U CN 207573076 U CN207573076 U CN 207573076U CN 201721718037 U CN201721718037 U CN 201721718037U CN 207573076 U CN207573076 U CN 207573076U
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- power supply
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- electrically connected
- contactor
- magnetic suspension
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- 239000000725 suspension Substances 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of stand-by power supply electric power systems of magnetic suspension motor, belong to technical field of electric control, electric power system includes first input end, contactor, uninterruptible power supply and the first output terminal, and first input end is electrically connected by the contact mechanism of contactor with the first output terminal；First input end is electrically connected with the second input terminal of uninterruptible power supply, the second output terminal of uninterruptible power supply is electrically connected by contact mechanism with the first output terminal, the second output terminal of uninterruptible power supply is also electrically connected with delay circuit, and the control terminal of uninterruptible power supply is connected with control circuit；It is gone back between first input end and contact mechanism and is connected to contactor coil and the first relay coil.The utility model can eliminate the disconnection fault as caused by powering off the external world in time, failure rate effectively be reduced, at the same time it can also provide fault data, to analyzing failure cause.
Description
Technical field
The utility model is related to a kind of power supplies of the stand-by power supply of technical field of electric control more particularly to magnetic suspension motor to be
System.
Background technology
It is applied in actual production more and more widely with increasingly maturation, the magnetic suspension motor of magnetic levitation technology.When
Magnetic suspension motor is during running at high speed, if occurring the failure powered off suddenly, suspension magnetic will disappear, and rotor will be straight
It connects and falls, magnetic bearing is caused to be damaged, magnetic suspension motor is damaged.
Existing solution is, using large bulk capacitance accumulation of energy, to achieve the purpose that protect magnetic bearing.It is however, this
Scheme power-on time is too short, and power supply effect is poor, also, can only provide and rotor is maintained not fall required a little electricity, when disconnected
After electricity occurs, the power down immediately of the intrinsic monitoring system of magnetic suspension motor can not preserve current failure code, give later period maintenance band
Difficulty is carried out.
Utility model content
In order to solve problem of the prior art, the utility model embodiment provides a kind of stand-by power supply of magnetic suspension motor
Electric power system.The technical solution is as follows：
The stand-by power supply electric power system of a kind of magnetic suspension motor, including first input end, contactor, uninterruptible power supply and
One output terminal, the first input end are electrically connected by the contact mechanism of the contactor with first output terminal；
The first input end is electrically connected with the second input terminal of the uninterruptible power supply, and the second of the uninterruptible power supply
Output terminal is electrically connected by the contact mechanism with first output terminal, and the second output terminal of the uninterruptible power supply is also electrically connected
Delay circuit is connected to, the control terminal of the uninterruptible power supply is connected with control circuit；
It is gone back between the first input end and the contact mechanism and is connected to contactor coil and the first relay coil.
Further, the contact mechanism includes at least two contactor normally-closed contacts and at least two contactors are normally opened tactile
Point, the contactor normally opened contact and the contactor normally-closed contact are electrically connected with first output terminal.
Further, the first input end is electrically connected with the contactor normally opened contact.
Further, the second output terminal of the uninterruptible power supply is electrically connected with the contactor normally-closed contact.
Further, the delay circuit includes the first branch and the second branch that are in parallel, and the first branch includes
Sequentially connected second relay coil and time relay normally closed contact, the second branch include the sequentially connected time after
Electric apparatus coil and the first relay normally closed contact.
Further, the control terminal includes the first control terminal, the second control terminal and common end, and the control circuit includes
The first relay normally open contact and the second relay normally open contact that are in parallel and the first relay normally closed contact being in series
With the second relay normally closed contact；
Wherein, first control terminal is touched by the first relay normally open contact being in parallel and the second relay normally open
Point is electrically connected with the common end；Second control terminal passes through the first relay normally closed contact and the second relay that are in series
Device normally-closed contact is electrically connected with the common end.
Further, the uninterruptible power supply is exchange output type uninterruptible power supply.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The utility model can eliminate the disconnection fault as caused by powering off the external world in time, effectively reduce failure rate, meanwhile, also
The monitoring system continued power of magnetic suspension motor can be given, to preserve fault data, for analyzing failure cause.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of stand-by power supply electric power system schematic diagram for magnetic suspension motor that the utility model embodiment provides.
Specific embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of stand-by power supply electric power system of magnetic suspension motor, including the first input
End, contactor, uninterruptible power supply and the first output terminal, first input end pass through the contact mechanism of contactor and the first output terminal electricity
Connection；
First input end is electrically connected with the second input terminal of uninterruptible power supply, and the second output terminal of uninterruptible power supply is by touching
Point mechanism is electrically connected with the first output terminal, and the second output terminal of uninterruptible power supply is also electrically connected with delay circuit, uninterruptible power supply
Control terminal be connected with control circuit；
It is gone back between first input end and contact mechanism and is connected to contactor coil and the first relay coil.
Referring to Fig. 1, specifically, first input end includes two terminals of L and N, the power supply outside two terminals accesses of L and N
Power supply, contact mechanism of two terminals of L and N also with the second input terminal of uninterruptible power supply UPS and contactor KM connect, to
It charges for uninterruptible power supply UPS and the first output terminal L1 and N1 to be connect with contact mechanism powers, so that it is guaranteed that first is defeated
The magnetic suspension system load that outlet L1 is connected with N1 runs well.Meanwhile two terminals of first input end L and N and contactor KM
Contact mechanism between also and be connected to contactor KM coils and the first relay KA1 coils.
When power supply normal power supply, control circuit is used to control the normal switch machine of uninterruptible power supply UPS, works as power supply
During power cut-off, delay circuit cooperation control circuit for controlling the time of shutdown, protects the battery of uninterruptible power supply UPS not
It can be damaged due to over-discharge.
When power supply normal power supply, power supply is by two terminals of L and N and contact mechanism to magnetic suspension system
Load supplying, meanwhile, power supply is powered by two terminals of L and N to uninterruptible power supply UPS.When power supply powers off, connect
The contact mechanism action of tentaculum KM, so as to be switched to uninterruptible power supply UPS as magnetic suspension system load supplying, it is ensured that power off
When magnetic suspension system load can run well.
In the present embodiment, contact mechanism includes at least two contactor normally-closed contacts and at least two contactors are normally opened tactile
Point, contactor normally opened contact and contactor normally-closed contact are and the electrical connection of the first output terminal, first input end are normally opened with contactor
Contact is electrically connected, and the second output terminal of uninterruptible power supply is electrically connected with contactor normally-closed contact.
Specifically, referring again to Fig. 1, when the external power supply normal power supply of L, N, KM coils are powered, KM contacts machine
Structure acts, wherein, contactor normally opened contact is closed, and contactor normally-closed contact disconnects, so as to which L, N are connected with L1, N1, to magnetcisuspension
Floating system load normal power supply, meanwhile, contactor normally-closed contact cuts off the connection of L2, N2 and L1, N1.
Similarly, when L, N external power supply stops power supply or failure, KM coil losing electricities, KM contact mechanisms reset,
In, contactor normally opened contact disconnects, and contactor normally-closed contact is closed, so as to which L, N and L1, N1 are disconnected, and L2, N2 and L1, N1 connect
It connects, normal power supply is loaded to magnetic suspension system by uninterruptible power supply UPS.
In the present embodiment, delay circuit includes the first branch and the second branch that are in parallel, and the first branch is included successively
The second relay coil and time relay normally closed contact of connection, the second branch include sequentially connected time relay coil
With the first relay normally closed contact.
Specifically, the first branch includes sequentially connected second relay KA2 coils and time relay KT normally-closed contacts,
The second branch includes sequentially connected time relay KT coils and the first relay KA1 normally-closed contacts.
In the present embodiment, control terminal includes the first control terminal, the second control terminal and common end, and control circuit is included mutually simultaneously
The first relay normally open contact and the second relay normally open contact of connection and the first relay normally closed contact for being in series and the
Two relay normally closed contacts；
Wherein, the first control terminal is by the first relay normally open contact and the second relay normally open contact that are in parallel, with
Common end is electrically connected；Second control terminal by the first relay normally closed contact and the second relay normally closed contact that are in series, with
Common end is electrically connected.
Referring again to Fig. 1, specifically, CN1, CN2, CN3 are respectively the first control terminal, the second control terminal and common end, CN1
By the KA1 normally opened contacts and KA2 normally opened contacts being in parallel, be electrically connected with CN3, CN2 by the KA1 normally-closed contacts that are in series and
KA2 normally-closed contacts, are electrically connected with CN3.At this point, the control logic of uninterruptible power supply UPS is, CN2 and CN1 is connected, and CN3 with
When CN1 is disconnected, uninterruptible power supply UPS normal boot-straps, CN2 and CN1 is disconnected or CN3 and CN1 is connected, and leads to uninterruptible power supply
UPS shuts down.
In the present embodiment, uninterruptible power supply is exchange output type uninterruptible power supply, specifically, uninterruptible power supply can be
General alternating current 220V output uninterruptible power supply.
Fig. 1 is recombined below, and the course of work is specifically described.
During power supply normal power-up, L, N-terminal add 220V voltages, and contactor KM coils are powered, the action of KM contact mechanisms, from
And L, N are connected with L1, N1, and normal power supply is loaded for magnetic suspension system, meanwhile, the first relay KA1 coils are powered, and KA1 is normally opened
Contact closure, CN2 and CN1 are connected, while CN3 and CN1 is disconnected, and uninterruptible power supply UPS normal boot-straps, L2, N2 are equally defeated at this time
Go out voltage 220V, but since the contact mechanism of KM acts, L2, N2 and L1, N1 are disconnected, uninterruptible power supply UPS is in unloaded shape
State.
When power supply powers off, contactor KM coil losing electricities, contact mechanism resets, at this point, L, N and L1, N1 are disconnected,
L2, N2 are connected with L1, N1, are powered by uninterruptible power supply UPS for magnetic suspension system load continuous.Meanwhile the first relay KA1 lines
Dead electricity is enclosed, KA1 normally-closed contacts are closed, and the time relay KT coils at L2, N2 end are powered, and the delay of KT normally-closed contacts disconnects, later,
CN2 and CN1 is disconnected or CN3 and CN1 is connected, and leads to the normal delay switching-offs of uninterruptible power supply UPS, reaches protection UPS battery
Effect.
It should be noted that magnetic suspension system load further includes the monitoring system of magnetic suspension motor, when power supply powers off
When, due to being switched to uninterruptible power supply UPS power supplies at once, the monitoring system of magnetic suspension motor is able to continue to work normally, so as to
The fault data that power supply power-off generates can be preserved, convenient for subsequent analysis failure cause.
The utility model can eliminate the disconnection fault as caused by powering off the external world in time, effectively reduce failure rate, meanwhile, also
The monitoring system continued power of magnetic suspension motor can be given, to preserve fault data, for analyzing failure cause.
It should be noted that term " comprising " or any other variant thereof is intended to cover non-exclusive inclusion, so as to
So that include a series of elements commodity or system not only including those elements, but also other including being not explicitly listed
It element or further includes as this commodity or the intrinsic element of system.In the absence of more restrictions, by sentence
The element that "including a ..." limits, it is not excluded that also there are other phases in the commodity including the element or system
Same element.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of stand-by power supply electric power system of magnetic suspension motor, which is characterized in that including first input end, contactor, not between
Power-off source and the first output terminal, the first input end are electrically connected by the contact mechanism of the contactor with first output terminal
It connects；
The first input end is electrically connected with the second input terminal of the uninterruptible power supply, the second output of the uninterruptible power supply
End is electrically connected by the contact mechanism with first output terminal, and the second output terminal of the uninterruptible power supply is also electrically connected with
Delay circuit, the control terminal of the uninterruptible power supply are connected with control circuit；
It is gone back between the first input end and the contact mechanism and is connected to contactor coil and the first relay coil.
2. the stand-by power supply electric power system of magnetic suspension motor according to claim 1, which is characterized in that the contact mechanism
Including at least two contactor normally-closed contacts and at least two contactor normally opened contacts, the contactor normally opened contact and described connect
Tentaculum normally-closed contact is electrically connected with first output terminal.
3. the stand-by power supply electric power system of magnetic suspension motor according to claim 2, which is characterized in that first input
End is electrically connected with the contactor normally opened contact.
4. the stand-by power supply electric power system of magnetic suspension motor according to claim 3, which is characterized in that the uninterrupted electricity
The second output terminal in source is electrically connected with the contactor normally-closed contact.
5. the stand-by power supply electric power system of magnetic suspension motor according to claim 4, which is characterized in that the delay circuit
Including the first branch and the second branch being in parallel, the first branch includes sequentially connected second relay coil and time
Relay normally closed contact, the second branch include sequentially connected time relay coil and the first relay normally closed contact.
6. the stand-by power supply electric power system of magnetic suspension motor according to claim 5, which is characterized in that the control terminal packet
Include the first control terminal, the second control terminal and common end, the control circuit include the first relay normally open contact being in parallel and
Second relay normally open contact and the first relay normally closed contact and the second relay normally closed contact being in series；
Wherein, first control terminal is by the first relay normally open contact and the second relay normally open contact that are in parallel, with
The common end electrical connection；Second control terminal is normally closed by the first relay normally closed contact being in series and the second relay
Contact is electrically connected with the common end.
7. the stand-by power supply electric power system of magnetic suspension motor according to any one of claims 1 to 6, which is characterized in that institute
Uninterruptible power supply is stated as exchange output type uninterruptible power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718037.3U CN207573076U (en) | 2017-12-11 | 2017-12-11 | A kind of stand-by power supply electric power system of magnetic suspension motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718037.3U CN207573076U (en) | 2017-12-11 | 2017-12-11 | A kind of stand-by power supply electric power system of magnetic suspension motor |
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| Publication Number | Publication Date |
|---|---|
| CN207573076U true CN207573076U (en) | 2018-07-03 |
Family
ID=62686814
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721718037.3U Active CN207573076U (en) | 2017-12-11 | 2017-12-11 | A kind of stand-by power supply electric power system of magnetic suspension motor |
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| Country | Link |
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| CN (1) | CN207573076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725991A (en) * | 2020-05-25 | 2021-11-30 | 重庆高孚透平科技有限公司 | Power-off protection circuit of magnetic bearing control system |
-
2017
- 2017-12-11 CN CN201721718037.3U patent/CN207573076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113725991A (en) * | 2020-05-25 | 2021-11-30 | 重庆高孚透平科技有限公司 | Power-off protection circuit of magnetic bearing control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200306 Address after: 261061 no.5201 Yingqian street, Zhangying community, Qingchi street, Weifang High tech Zone, Weifang City, Shandong Province Patentee after: Tianrui maglev Intelligent Technology (Shandong) Co., Ltd Address before: High tech Zone in Shandong city of Weifang Province, 261061 Silver Street No. 6699 Patentee before: SHANDONG TIANRUI HEAVY INDUSTRY CO., LTD. |
|
| TR01 | Transfer of patent right |