CN206575345U - A kind of electric supply installation of the magnetic suspension air blower with soft start - Google Patents
A kind of electric supply installation of the magnetic suspension air blower with soft start Download PDFInfo
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- CN206575345U CN206575345U CN201621394026.XU CN201621394026U CN206575345U CN 206575345 U CN206575345 U CN 206575345U CN 201621394026 U CN201621394026 U CN 201621394026U CN 206575345 U CN206575345 U CN 206575345U
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Abstract
The utility model embodiment discloses a kind of electric supply installation of the magnetic suspension air blower with soft start; it is related to electronic engineering field; it ensure that when happening suddenly power failure; magnetic suspension bearing can work to rotor always stop operating after; rotor stops suspending again, it is ensured that when burst has a power failure rotor also will not high rotating speed fall and break protection bearing.The utility model includes：Three-phase alternating current input reactance device, three-phase alternating current input filter, silicon controlled rectifier, intelligent power module, transformer, SCR control, magnetic bearing and motor control, busbar and DCLink electric capacity, two DC D/C powers, magnetic bearing power amplifiers；Characterized in that, the three-phase alternating current input reactance device, the three-phase alternating current input filter, the silicon controlled rectifier, the intelligent power module are in series between three-phase alternating-current supply and controlled motor in main circuit power supply；The bus of the magnetic bearing power amplifier is supplied by DC D/C powers 1；The light current of the soft initiator is supplied by DC D/C powers 2 and transformer two-way.The utility model is applied to improve the electric supply installation of magnetic suspension air blower.
Description
Technical field
The present invention relates to electronic engineering field, more particularly to a kind of power supply mode of the magnetic suspension air blower with soft start.
Background technology
Magnetic suspension air blower uses magnetic suspension bearing, contactless loss and mechanical loss, realizes stepless become of high rotating speed and turns
Velocity modulation section, fan operation efficiency may be up to 84.5%, than the electric energy that traditional roots blower can save more than 25%.Meanwhile, machine
Device is directly driven using high-speed permanent magnet motor, and efficient three-dimensional flow impeller is directly installed on the main shaft of high-speed motor, and the whole series are set
Standby collection high-speed permanent magnetic synchronous motor, Active Magnetic Suspending Bearing, high speed frequency conversion, the cooling of em filtering enclosed circulate and automatically controlled one
Body technology is in one, and equipment is in operation without any friction.Equipment operates steadily, and overall efficiency reaches design requirement, efficiency
More than 8% is carried compared with gear driven type monopole high-speed blower.
But either prior art is without soft start, or the control of soft start is only supplied by AC 380V/12V transformers, when
Transformer breaks down, and controllable silicon will not work；
Prior art magnetic bearing power amplifier bus is obtained, it is necessary to introduce zero line, having the following disadvantages by AC 220V rectifications：1、
Blower fan scene will introduce zero line, and general industry scene only has live wire and ground wire；Once the 2, having a power failure, magnetic bearing power amplifier bus will lose
Electricity, magnetic bearing will fall；
Prior art light current is typically derived from AC 220V-DC Switching Power Supplies, has the following disadvantages：
1st, blower fan scene will introduce zero line, and general industry scene only has live wire and ground wire；
Once the 2, having a power failure, light current will fall dead electricity, magnetic bearing；
Prior art does not have the function that " generates electricity ".
Therefore, it is necessory to be improved to prior art to solve the deficiency of prior art.
The content of the invention
Embodiments of the invention provide a kind of electric supply installation of the magnetic suspension air blower with soft start, and the present invention ensure that
Happen suddenly have a power failure when, magnetic suspension bearing can work to rotor always stop operating after, rotor stops suspending again, it is ensured that prominent
When hair has a power failure rotor also will not high rotating speed fall and break protection bearing.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
A kind of electric supply installation of the magnetic suspension air blower with soft start, including：Three-phase alternating current input reactance device, three-phase alternating current
Input filter, silicon controlled rectifier, intelligent power module, transformer, SCR control, magnetic bearing and motor control, busbar
With DCLink electric capacity, two DC-DC power supplys, magnetic bearing power amplifiers；
Further, the three-phase alternating current is in series between three-phase alternating-current supply and controlled motor in main circuit power supply defeated
Enter reactor, the three-phase alternating current input filter, the silicon controlled rectifier, the intelligent power module；
Further, the bus of the magnetic bearing power amplifier is supplied by DC-DC power source 1；
Further, the light current of the electric supply installation is supplied by DC-DC power source 2.
Further, the control of the electric supply installation is powered by two-way power supply and supplied through diode：It is electric on AC 380V
When, before DC-DC power source 2 does not work, the control of the soft initiator is supplied by AC 380V/12V transformers after diode rectification
Give；After being worked in DC-DC power source 2, the control of the soft initiator is supplied by two-way power supply and through diode；
Further, during power failure, motor is changed into generator by motor, converts kinetic energy into electric energy, gives DCLink electricity
Capacity charge, ensures DC-DC power source 1 and the continuous firing of DC-DC power source 2.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below by using required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
The structured flowchart that Fig. 1 provides for the present invention, 1- compressor impellers, 2- radial magnetic bearings, 3- axial magnetic suspensions
Bearing.
Embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to the present invention.It is described in more detail below embodiments of the present invention, the embodiment is shown
Example is shown in the drawings, wherein same or similar label represents same or similar element or with identical or class from beginning to end
Like the element of function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the present invention, and can not
It is construed to limitation of the present invention.Those skilled in the art of the present technique are appreciated that unless expressly stated, odd number shape used herein
Formula " one ", " one ", " described " and "the" may also comprise plural form.It is to be further understood that the specification of the present invention
The middle wording " comprising " used refers to there is the feature, integer, step, operation, element and/or component, but it is not excluded that
In the presence of or add one or more other features, integer, step, operation, element, component and/or their group.It should be understood that
When we claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or
There can also be intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Here make
Wording "and/or" includes one or more associated any cells for listing item and all combined.The art
Technical staff is appreciated that unless otherwise defined all terms (including technical term and scientific terminology) used herein have
With the general understanding identical meaning of the those of ordinary skill in art of the present invention.It should also be understood that such as general
Those terms defined in dictionary, which should be understood that, has the meaning consistent with the meaning in the context of prior art, and
Unless defined as here, it will not be explained with idealization or excessively formal implication.
The embodiment of the present invention provides a kind of electric supply installation of the magnetic suspension air blower with soft start, as shown in figure 1, bag
Include：Including：Three-phase alternating current input reactance device, three-phase alternating current input filter, silicon controlled rectifier, intelligent power module, transformation
Device, SCR control, magnetic bearing and motor control, busbar and DCLink electric capacity, two DC-DC power sources, magnetic bearing power amplifiers；
Further, the three-phase alternating current is in series between three-phase alternating-current supply and controlled motor in main circuit power supply defeated
Enter reactor, the three-phase alternating current input filter, the silicon controlled rectifier, the intelligent power module；
Further, the bus of the magnetic bearing power amplifier is supplied by DC-DC power source 1；
Further, the light current of the soft initiator is supplied by DC-DC power source 2.
Further, the control of the soft initiator is powered and simultaneously supplied by two-way power supply (through diode)：On AC 380V
When electric, before DC-DC power source 2 does not work, the control of the soft initiator is by AC 380V/12V transformers after diode rectification
Supply；After being worked in DC-DC power source 2, the control of the soft initiator is supplied by two-way power supply and through diode；
Further, during power failure, motor is changed into generator by motor, converts kinetic energy into electric energy, gives DCLink electricity
Capacity charge, it is ensured that DC-DC power source 1 and the continuous firing of DC-DC power source 2.
First, power up：
Air switch is closed, and transformer is powered to SCR control plate, and it is (soft to open that controllable silicon carries out controlled rectification to three-phase electricity
It is dynamic), with limiting starting current, for uncontrollable rectifier, save charging resistor and contactor.Busbar+DC after rectification
Link electric capacity provides 540V buses to ipm motor inverter, and it is female that power supply 1 provides 300V to magnetic bearing power amplifier (magnetic bearing inverter)
Line, power supply 2 provides 24V light current；Even if hereafter transformer breaks down, because SCR control plate is that transformer and power supply 2 supply power with double circuit,
Controllable silicon can be with normal work.
2nd, have a power failure or power process：
During power failure, motor is changed to power generation mode and busbar+DC Link electric capacity is charged, and power supply 1 and power supply 2 can be held
Continuous work stops to rotor, that is, magnetic bearing power amplifier can ensure rotor suspension until rotor stops operating with continuous firing
Land rotor again afterwards, so that avoiding rotor from falling at high speed breaks protection bearing.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.It is real especially for equipment
Apply for example, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to embodiment of the method
Part explanation.The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, the change that can readily occur in or replace
Change, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claim
Enclose and be defined.
Claims (2)
1. a kind of electric supply installation of the magnetic suspension air blower with soft start, including：Three-phase alternating current input reactance device, three-phase alternating current are defeated
Enter wave filter, silicon controlled rectifier, intelligent power module, transformer, SCR control, magnetic bearing and motor control, busbar and
DC Link electric capacity, two DC-DC power sources, magnetic bearing power amplifiers；
Characterized in that, the three-phase alternating current input is in series between three-phase alternating-current supply and controlled motor in main circuit power supply
Reactor, the three-phase alternating current input filter, the silicon controlled rectifier, the intelligent power module；
The bus of the magnetic bearing power amplifier is supplied by DC-DC power source 1；
The light current of the electric supply installation is supplied by DC-DC power source 2 and transformer two-way.
2. the electric supply installation of a kind of magnetic suspension air blower with soft start according to claim 1, it is characterised in that described
The control of soft initiator is powered by two-way power supply and supplied through diode：When electric on AC 380V, do not worked in DC-DC power source 2
Before, the control of the soft initiator is supplied by AC 380V/12V transformers after diode rectification；Worked when in DC-DC power source 2
Afterwards, the control of the soft initiator is supplied by two-way power supply and through diode；
During power failure, motor is changed into generator by motor, converts kinetic energy into electric energy, gives the charging of DCLink electric capacity, it is ensured that DC-
D/C power 1 and the continuous firing of DC-DC power source 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394026.XU CN206575345U (en) | 2016-12-19 | 2016-12-19 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394026.XU CN206575345U (en) | 2016-12-19 | 2016-12-19 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
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| Publication Number | Publication Date |
|---|---|
| CN206575345U true CN206575345U (en) | 2017-10-20 |
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| CN201621394026.XU Active CN206575345U (en) | 2016-12-19 | 2016-12-19 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222136A (en) * | 2016-12-19 | 2017-09-29 | 南京磁谷科技有限公司 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
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2016
- 2016-12-19 CN CN201621394026.XU patent/CN206575345U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222136A (en) * | 2016-12-19 | 2017-09-29 | 南京磁谷科技有限公司 | A kind of electric supply installation of the magnetic suspension air blower with soft start |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 211100 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: 211100 Jiangning Development Zone, Jiangsu Province, nine bamboo Road, No. 100, No. Patentee before: NANJING CIGU LIMITED Corp. |