CN207277925U - Power distribution room and air-conditioning system - Google Patents
Power distribution room and air-conditioning system Download PDFInfo
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- CN207277925U CN207277925U CN201721116281.2U CN201721116281U CN207277925U CN 207277925 U CN207277925 U CN 207277925U CN 201721116281 U CN201721116281 U CN 201721116281U CN 207277925 U CN207277925 U CN 207277925U
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- variable frequency
- power distribution
- distribution room
- direct current
- centrifuge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model provides a kind of power distribution room and air-conditioning system, the power distribution room is used to be powered variable frequency centrifuge system, the power distribution room includes the rectification module being connected with power grid, the rectification module is used to the alternating current of power grid being converted to direct current, and carries out direct current supply to the variable frequency centrifuge system by dc bus.The utility model can not only reduce the occupied space of the airborne frequency converter on variable frequency centrifuge, can also reduce the main screw lift of variable frequency centrifuge, in addition can reduce required cable compared with prior art, reach the simplified mode of connection, save the purpose of cable cost.
Description
Technical field
It the utility model is related to air-conditioning technical field, and in particular to a kind of power distribution room and air-conditioning system.
Background technology
Variable frequency centrifuge is commercial centrifuge type common at present, it usually requires construction power distribution room and it is supplied
Electricity, power distribution room mainly include power network switch, provide the alternating current of power grid to variable frequency centrifuge by power network switch, as shown in Figure 1,
After the alternating current of power grid is got by power distribution room, the airborne frequency converter of centrifuge using exchange-DC-AC (AC-
DC-AC) mode carry out frequency control, therefore, the circuit board of the airborne frequency converter of centrifuge also includes rectifying part accordingly
(rectification module) and Converting Unit (inverter module), the alternating current of power grid is converted to direct current after rectifying part, then passes through
Converting Unit is converted to frequency and the adjustable alternating current of voltage, and the alternating current come out by inversion removes control variable frequency centrifuge forever
Magneto, and the problem of the airborne frequency converter occupied space that thus causes centrifuge is larger (electric control part of frequency converter
Structure typically takes up the space of a quarter structural area of centrifuge complete machine), also improve the main screw lift of centrifuge.
Utility model content
Based on above-mentioned present situation, the main purpose of the utility model is that providing a kind of power distribution room and air-conditioning system, not only may be used
To reduce the occupied space of the airborne frequency converter of variable frequency centrifuge, the main screw lift of variable frequency centrifuge can also be reduced.
To achieve the above object, the technical solution of the utility model provides a kind of power distribution room, for variable frequency centrifuge
System is powered, and the power distribution room includes the rectification module being connected with power grid, and the rectification module is used for the exchange of power grid
Electricity is converted to direct current, and carries out direct current supply to the variable frequency centrifuge system by dc bus.
Preferably, the power distribution room further includes power network switch, for controlling the break-make of the rectification module and the power grid.
Preferably, the rectification module includes multiple rectification units.
Preferably, the multiple rectification unit is in parallel.
Preferably, the rated output power of the multiple rectification unit is identical or different.
Preferably, the power distribution room further includes photovoltaic combiner box, and the photovoltaic combiner box is connected with photovoltaic generating system, institute
Photovoltaic combiner box is stated to be used to after the direct current output of the photovoltaic generating system is collected centrifuge the frequency conversion by dc bus
Machine system carries out direct current supply.
Preferably, the rectification module and the photovoltaic combiner box by same dc bus to the variable frequency centrifuge system
System carries out direct current supply.
To achieve the above object, the technical solution of the utility model additionally provides a kind of air-conditioning system, including above-mentioned matches somebody with somebody
Electric room and the variable frequency centrifuge system, the variable frequency centrifuge system include at least one variable frequency centrifuge, each institute
Stating variable frequency centrifuge includes airborne frequency converter and magneto；
The airborne frequency converter includes inverter module, and the direct current that the inverter module is used to export the power distribution room turns
The alternating current of the magneto can be driven by being changed to.
Preferably, the variable frequency centrifuge system includes multiple variable frequency centrifuges.
Preferably, the rectification module includes multiple rectification units, the multiple rectification unit respectively with multiple changes
Frequency centrifuge corresponds.
Power distribution room provided by the utility model, direct current is converted to by rectification module by the alternating current of power grid, then will be turned
The direct current changed is supplied to variable frequency centrifuge system by dc bus, and variable frequency centrifuge system need to only export power distribution room straight
Galvanic electricity carries out inversion processing, is converted into frequency and the adjustable alternating current of voltage, and no longer needs to carry out the process of rectification, i.e.,
Variable frequency centrifuge in variable frequency centrifuge system no longer needs corresponding rectification module, so as to reach the electricity of simplified variable frequency centrifuge
Control the purpose of part, can not only reduce the occupied space of the airborne frequency converter on variable frequency centrifuge, can also reduce frequency conversion from
The main screw lift of scheming, further, since power distribution room is powered variable frequency centrifuge system by dc bus, compared to existing skill
The power supply mode of ac bus is used in art, it is possible to reduce required cable, reaches the simplified mode of connection, saves cable cost
Purpose.
Brief description of the drawings
Hereinafter reference will be made to the drawings is described to according to the present utility model.In figure：
Fig. 1 is the principle schematic that existing variable frequency centrifuge carries out frequency control；
Fig. 2 is a kind of schematic diagram for power distribution room that the utility model embodiment provides；
Fig. 3 is the schematic diagram for another power distribution room that the utility model embodiment provides；
Fig. 4 is a kind of schematic diagram for air-conditioning system that the utility model embodiment provides.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.
Referring to Fig. 2, Fig. 2 is a kind of schematic diagram for power distribution room that the utility model embodiment provides, which is used for
Variable frequency centrifuge system is powered, variable frequency centrifuge system includes at least one variable frequency centrifuge, and the power distribution room includes
Power network switch 110, the power distribution room further include the rectification module 120 being connected with the power network switch 110, pass through power network switch
110 can realize the break-make control between power grid and rectification module 120, and the rectification module 120 is used for the alternating current of power grid
Direct current is converted to, and direct current supply is carried out to the variable frequency centrifuge system by dc bus.
The power distribution room that the utility model embodiment provides, direct current is converted to by rectification module by the alternating current of power grid
Electricity, then the direct current of conversion is supplied to variable frequency centrifuge system by dc bus, variable frequency centrifuge system only need to be to distribution
The direct current of room output carries out inversion processing, is converted into frequency and the adjustable alternating current of voltage, and no longer needs to carry out whole
Variable frequency centrifuge in the process of stream, i.e. variable frequency centrifuge system no longer needs corresponding rectification module, so as to reach simplified change
The purpose of the electric control part of frequency centrifuge, can not only reduce the occupied space of the airborne frequency converter on variable frequency centrifuge, may be used also
To reduce the main screw lift of variable frequency centrifuge, further, since power distribution room supplies variable frequency centrifuge system by dc bus
Electricity (only needs 2 direct current cables), and the middle power supply mode using ac bus is (it is generally necessary to 4 AC lines compared with prior art
Cable), it is possible to reduce required cable, reaches the simplified mode of connection, saves the purpose of cable cost.
Preferably, in the utility model embodiment, the rectification module of power distribution room can include multiple rectification units, institute
The rated output power for stating multiple rectification units may be the same or different.For example, can previously according to common frequency conversion from
Scheming designs the normal rectification unit of several specification, and the rated output power of the normal rectification unit of different size is different, it
Be directed to different service conditions afterwards, by varying rectification module Plays rectification unit quantity and specification obtain it is required whole
Flow module, therefore, can be with for example, the power grade of common variable frequency centrifuge mainly includes 240KW and two kinds of 400KW at present
It is pre-designed the normal rectification unit (i.e. rated output power is 240KW) of 240KW specifications and the normal rectification list of 400KW specifications
First (i.e. rated output power is 400KW), if variable frequency centrifuge system includes the frequency conversion that two power grades are 400KW and centrifuges
Machine, then can configure the normal rectification unit of two 400KW specifications in rectification module, if variable frequency centrifuge system includes one
The variable frequency centrifuge that the variable frequency centrifuge and a power grade that power grade is 400KW are 240KW, then can be in rectification module
The normal rectification unit of middle one 240KW specification of configuration and the normal rectification unit of a 400KW specification, through the above way
It can achieve the purpose that according to different service condition flexible configurations.
Wherein, in the utility model embodiment, multiple rectification units in rectification module can use parallel way.
Referring to Fig. 3, Fig. 3 is the schematic diagram for another power distribution room that the utility model embodiment provides, which uses
It is powered in variable frequency centrifuge system, the power distribution room includes power network switch 210, rectification module 220 and photovoltaic conflux
Case 230；
Wherein, rectification module 220 is connected with power network switch 210, and power grid 21 and rectification can be realized by power network switch 210
Break-make control between module 220, when power network switch 210, which controls, to be turned between power grid 21 and sorting module 220, passes through institute
Direct current can be converted to by the alternating current of power grid 21 by stating rectification module 220, afterwards by dc bus 23 to variable frequency centrifuge
System carries out direct current supply；
Photovoltaic combiner box 230 is used for after the direct current output of photovoltaic generating system 22 is collected by dc bus 23 to described
Variable frequency centrifuge system carries out direct current supply, so as to realize that photovoltaic generating system is powered variable frequency centrifuge system；
Wherein, rectification module 220 can be exported with 230 common DC bus of photovoltaic combiner box, i.e. rectification module 220 and photovoltaic
Header box 230 can carry out direct current supply by same dc bus to variable frequency centrifuge system；
For current photovoltaic variable frequency centrifuge, its airborne frequency converter generally includes ac input end and direct-flow input end,
The alternating current of power grid is obtained from distribution box by ac input end, photovoltaic generation is obtained from distribution box by direct-flow input end
The direct current of system, correspondingly, power distribution room generally includes the power network switch being connected with power grid and is connected with photovoltaic generating system
Photovoltaic combiner box, and power network switch is connected by ac bus with the ac input end of airborne frequency converter, and photovoltaic combiner box leads to
The direct-flow input end that dc bus is crossed with airborne frequency converter is connected, after the alternating current of power grid is obtained by ac input end, machine
Load frequency converter, which first passes through rectifying part (rectifier bridge structure), to be converted to direct current after the alternating current of power grid, then by Converting Unit
(inverter bridge structure) is converted to frequency and the adjustable alternating current of voltage, by inversion come out alternating current go control photovoltaic frequency conversion from
The magneto of scheming；
, can be by electricity by the rectification module and the utility model embodiment is in power distribution room by adding rectification module
The alternating current of net is converted to direct current, and power distribution room is powered variable frequency centrifuge using direct current, variable frequency centrifuge it is airborne
Frequency converter no longer needs to carry out the process of rectification, i.e. the airborne frequency converter of variable frequency centrifuge need to only include inverter module, without
Rectification module is needed again, so as to can not only reduce the occupied space of airborne frequency converter, can also reduce the whole of variable frequency centrifuge
Machine weight, in addition, in the utility model embodiment, the rectification module and photovoltaic combiner box common DC bus of distribution box are defeated
Go out, distribution box only needs a dc bus to can be achieved to power to variable frequency centrifuge, and airborne frequency converter also only needs a direct current to input
End, and ac input end is no longer needed, so as to not only can further simplify the structure of airborne frequency converter, can also subtract
Cable needed for few transmission of electricity, reaches the simplified mode of connection, saves the purpose of cable cost.
In addition, the utility model is embodiment further provides a kind of air-conditioning system, including above-mentioned power distribution room and described
Variable frequency centrifuge system, the variable frequency centrifuge system include at least one variable frequency centrifuge, each described variable frequency centrifuge
Including airborne frequency converter and magneto；
The airborne frequency converter includes inverter module, and the direct current that the inverter module is used to export the power distribution room turns
The alternating current of the magneto can be driven by being changed to.
Referring to Fig. 4, Fig. 4 be the utility model embodiment provide a kind of air-conditioning system schematic diagram, the air-conditioning system
Including variable frequency centrifuge system 34 and power distribution room；
Wherein, variable frequency centrifuge system 34 includes multiple variable frequency centrifuges (can be photovoltaic variable frequency centrifuge) 34a, each
A variable frequency centrifuge 34a includes airborne frequency converter and magneto (permanent magnet synchronous motor), each variable frequency centrifuge it is airborne
Frequency converter includes inverter module (i.e. DC-AC components), but does not have rectification module (i.e. AC-DC components)；
The power distribution room includes power network switch 310, rectification module 320 and photovoltaic combiner box 330；
Wherein, rectification module 320 is connected with power network switch 310, and power grid 31 and rectification can be realized by power network switch 310
Break-make control between module 320, when power network switch 310, which controls, to be turned between power grid 31 and rectification module 320, passes through institute
Direct current can be converted to by the alternating current of power grid 21 by stating rectification module 320, afterwards by dc bus 33 to variable frequency centrifuge
Each variable frequency centrifuge 34a in system carries out direct current supply；
Photovoltaic combiner box 330 is exported with 320 common DC bus of rectification module, can be by photovoltaic by photovoltaic combiner box 330
The direct current output of electricity generation system 32 collect after by dc bus 33 to each variable frequency centrifuge 34a in variable frequency centrifuge system into
Row direct current supply；
Wherein, in the utility model embodiment, the rectification module 320 can include multiple rectification units, and more
A rectification unit is corresponded with multiple variable frequency centrifuges respectively.
For example, the normal rectification of several specification can be designed previously according to existing photovoltaic variable frequency centrifuge power grade
Unit and standard inverter module, the rated output power of the normal rectification unit of different size is different, and the standard of different size is inverse
Become module rated output power it is also different, multiple normal rectification units can be arranged on it is used in parallel in power distribution room, and according to
The quantity of variable frequency centrifuge in variable frequency centrifuge system, determines the use number of power distribution room Plays rectification unit, determines to make
After number, power grid is accessed by power network switch, realizes the direct current supply to each variable frequency centrifuge in variable frequency centrifuge system；
The airborne frequency converter of each variable frequency centrifuge in variable frequency centrifuge system includes the standard inverter module being pre-designed,
The variable frequency centrifuge of different model uses the standard inverter module of different size, and the specification of standard inverter module is chosen according to centrifugation
The power grade of machine determines, for example, centrifuge power grade common at present is 240KW and 400KW, can be pre-designed 240KW,
The normal rectification unit of 400KW and the standard inverter module of 240KW, 400KW, normal rectification unit, which is installed in power distribution room, to be made
With standard inverter module is installed on variable frequency centrifuge, so as to realize flexible configuration according to different service conditions；
If for example, including the photovoltaic variable frequency centrifuge of two 400KW in variable frequency centrifuge system, can match somebody with somebody in power distribution room
The normal rectification unit of two 400KW is put, and with being exported after the photovoltaic output common DC bus of photovoltaic combiner box in power distribution room, and
The airborne frequency converter of each variable frequency centrifuge in variable frequency centrifuge system only needs to configure the standard inverter module of a 400KW, mark
Quasi- inverter module drives magneto after the direct current that power distribution room exports is converted to alternating current, compared to existing technology scheme,
The half volume of cabinet used in airborne frequency converter can be reduced.
The air-conditioning system that the utility model embodiment provides, can obtain the volume of airborne frequency converter on variable frequency centrifuge
To significantly (half or so can be reduced) is reduced, the main screw lift of variable frequency centrifuge is reduced, in addition, by by rectification unit and inverse
Become unit to separate, can not only reduce electromagnetic interference and noise, can also improve production efficiency, and when investigating failure also more
Add conveniently, meanwhile, also it is reduced from power distribution room to the cable of variable frequency centrifuge system, existing power supply mode needs alternating current
Cable and direct current cables realize power supply, and the utility model only needs direct current cables that power distribution room can be achieved to variable frequency centrifuge system
The power supply of system, has saved cable cost.
The utility model embodiment further provides a kind of method of supplying power to, including：
The alternating current of power grid is converted to direct current by power distribution room by rectification module, and the direct current is female by direct current
Line is exported to variable frequency centrifuge system；
The direct current is converted to and can driven by inverter module by the variable frequency centrifuge in the variable frequency centrifuge system
The alternating current of the magneto of the variable frequency centrifuge.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred solution can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only exemplary, and it is nonrestrictive, without departing from the utility model
In the case of basic principle, those skilled in the art can be directed to the various obvious or equivalent modification that above-mentioned details is made
Or replace, all it is included in the right of the utility model.
Claims (10)
1. a kind of power distribution room, for being powered to variable frequency centrifuge system, it is characterised in that the power distribution room includes and power grid
Connected rectification module, the rectification module are used to the alternating current of power grid being converted to direct current, and by dc bus to institute
State variable frequency centrifuge system and carry out direct current supply.
2. power distribution room according to claim 1, it is characterised in that the power distribution room further includes power network switch, for controlling
The break-make of the rectification module and the power grid.
3. power distribution room according to claim 1, it is characterised in that the rectification module includes multiple rectification units.
4. power distribution room according to claim 3, it is characterised in that the multiple rectification unit is in parallel.
5. power distribution room according to claim 3, it is characterised in that the rated output power of the multiple rectification unit is identical
It is or different.
6. power distribution room according to claim 1, it is characterised in that the power distribution room further includes photovoltaic combiner box, the light
Volt header box is connected with photovoltaic generating system, and the photovoltaic combiner box is used to collect the direct current output of the photovoltaic generating system
Direct current supply is carried out to the variable frequency centrifuge system by dc bus afterwards.
7. power distribution room according to claim 6, it is characterised in that the rectification module passes through same with the photovoltaic combiner box
One dc bus carries out direct current supply to the variable frequency centrifuge system.
8. a kind of air-conditioning system, it is characterised in that including any power distribution rooms of claim 1-7 and frequency conversion centrifugation
Machine system, the variable frequency centrifuge system include at least one variable frequency centrifuge, each described variable frequency centrifuge includes airborne
Frequency converter and magneto；
The airborne frequency converter includes inverter module, and the inverter module is used to be converted in the direct current that the power distribution room exports
The alternating current of the magneto can be driven.
9. air-conditioning system according to claim 8, it is characterised in that the variable frequency centrifuge system includes multiple changes
Frequency centrifuge.
10. air-conditioning system according to claim 9, it is characterised in that the rectification module includes multiple rectification units, institute
Multiple rectification units are stated to correspond with multiple variable frequency centrifuges respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721116281.2U CN207277925U (en) | 2017-09-01 | 2017-09-01 | Power distribution room and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721116281.2U CN207277925U (en) | 2017-09-01 | 2017-09-01 | Power distribution room and air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207277925U true CN207277925U (en) | 2018-04-27 |
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ID=61989461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721116281.2U Active CN207277925U (en) | 2017-09-01 | 2017-09-01 | Power distribution room and air-conditioning system |
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| CN (1) | CN207277925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933372A (en) * | 2018-07-27 | 2018-12-04 | 中国工程物理研究院总体工程研究所 | Geotechnical centrifuge hanging basket power supply unit |
-
2017
- 2017-09-01 CN CN201721116281.2U patent/CN207277925U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933372A (en) * | 2018-07-27 | 2018-12-04 | 中国工程物理研究院总体工程研究所 | Geotechnical centrifuge hanging basket power supply unit |
| CN108933372B (en) * | 2018-07-27 | 2024-01-16 | 中国工程物理研究院总体工程研究所 | Geotechnical centrifuge hanging basket power supply device |
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