CN110311537A - Power cabinet and current transformer - Google Patents
Power cabinet and current transformer Download PDFInfo
- Publication number
- CN110311537A CN110311537A CN201810236379.4A CN201810236379A CN110311537A CN 110311537 A CN110311537 A CN 110311537A CN 201810236379 A CN201810236379 A CN 201810236379A CN 110311537 A CN110311537 A CN 110311537A
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- China
- Prior art keywords
- power cabinet
- power
- phase module
- cabinet
- face
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
Abstract
The present invention provides a kind of power cabinet and current transformer, the power cabinet includes the cabinet body and three phase modules that braced frame is constituted, three phase modules distinguish vertical device on the top, middle part and lower part of the cavity of the power cabinet, each phase module includes two current-limiting reactors, two current-limiting reactors corresponding with each phase module are arranged on the rear end face of the power cabinet, and with corresponding phase module against setting.Power cabinet and current transformer provided by the invention, enable to the structure of power cabinet more compact, and the size of power cabinet in the direction of the width is substantially reduced, and meet the requirement in blower fan tower barrel to size.
Description
Technical field
The present invention relates to a kind of energy power supply technique field more particularly to a kind of power cabinets and current transformer.
Background technique
Currently, offshore wind farm unit mainstream is 3~5MW, generally higher than 4MW, maximum is 8MW.With China's sea turn
Electric construction, which is set from intertidal zone toward coastal waters direction, to be developed, the considerations of for cost and O&M, Wind turbines single-machine capacity 4.0MW and with
On will become long-term trend, can be seen that high-power wind turbine unit is gradually increasing from external sea turn motor assembling machine situation
It is more, such as Wind turbines can reach 6MW, 7MW and 8MW etc., and come into the commercial operation stage, and 10MW Wind turbines
There has also been experimental prototypes.It can be seen that offshore wind farm unit is future trend towards single machine more high power development, while being examined long-range
The scheme of volage current transformer more has advantage in the case where power is bigger in worry.
However, existing, using IGCT, (Intergrated Gate Commutated Thyristors, integral gate are changed
Stream thyristor) size of the power cabinet of middle pressure offshore wind farm current transformer done of device is bigger than normal, and maintainable bad, offshore wind farm becomes
Flowing device includes numerous components, and occupied area is larger, not compact enough, and in the market to the power density requirements of current transformer increasingly
Height, how to make the power cabinet of IGCT current transformer more compact under the premise of guaranteeing current transformer performance is urgently to be solved at present ask
Topic.
Summary of the invention
In view of this, the present invention provides a kind of power cabinet and current transformer, enable to the structure of power cabinet more compact, and
And the size of power cabinet in the direction of the width is substantially reduced, and meets the requirement in blower fan tower barrel to size.
The present invention provides a kind of power cabinet, and the power cabinet includes the cabinet body and three phase modules that braced frame is constituted, and three
A phase module distinguishes the top, middle part and lower part of cavity of the vertical device in the power cabinet, each phase module packet
Two current-limiting reactors are included, two current-limiting reactors corresponding with each phase module are arranged in the rear end of the power cabinet
On face, and with corresponding phase module against setting.
Further, each phase module further includes two absorption resistances, two corresponding with each phase module
Absorption resistance is arranged on the left side of the power cabinet.
Further, each phase module is arranged in corresponding phase module with the busbar that the inside of the power cabinet connects
Vacant position on, and the mounting surface of each busbar both face towards the power cabinet front end face setting.
Further, the top of the left side of the power cabinet is provided with short-circuit detecting plate.
Further, setting is there are three gate pole power supply on the left side of the power cabinet, in three gate pole power supplys
Two left sides for being arranged in the power cabinet middle part, one in three gate pole power supplys is arranged in the power
The lower part of the left side of cabinet.
Further, low-inductance bus corresponding with each phase module is respectively arranged on the rear end face of the power cabinet.
Further, each low-inductance bus is fixed to the branch of the rear end face of the power cabinet by corresponding epoxy plate
It supports on metal plate, and each low-inductance bus is located between the rear end face of the power cabinet and the current-limiting reactor.
Further, respectively symmetrically device has two to top, middle part and the lower part on the two sides of the cavity of the power cabinet
Heavy duty guide rail, the extending direction of the every heavy duty guide rail is consistent with the depth direction of the power cabinet, each phase mould
Block is fixedly connected with the sliding part of corresponding heavy duty guide rail.
Further, the front end face that the front end face of each phase module passes through multiple auxiliary fixing members and the power cabinet
On braced frame connection.
The present invention also provides a kind of current transformer, the current transformer includes such as above-mentioned power cabinet.
It can be seen that power cabinet provided in an embodiment of the present invention and current transformer, by the way that three vertical devices of phase module are existed
Top, middle part and the lower part of the cavity of power cabinet, and after corresponding two current-limiting reactors of phase module are arranged in power cabinet
On end face, so that the structure of power cabinet is more compact, and the size of power cabinet in the direction of the width is substantially reduced,
Meet the requirement in blower fan tower barrel to size.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
Fig. 1 is the structural block diagram for the power cabinet that first embodiment of the invention provides.
Fig. 2 is the circuit topological structure schematic diagram of phase module in Fig. 1.
Fig. 3 is the schematic view of the front view for the power cabinet that first embodiment of the invention provides.
Fig. 4 is schematic view of the front view of the power cabinet that provides of first embodiment of the invention after removing power cell.
Fig. 5 is the left view structural representation for the power cabinet that first embodiment of the invention provides.
Fig. 6 is the backsight structural representation for the power cabinet that first embodiment of the invention provides.
Fig. 7 is backsight structural representation of the power cabinet that provides of first embodiment of the invention after removing low-inductance bus.
Fig. 8 is the overlooking structure diagram for the power cabinet that first embodiment of the invention provides.
Fig. 9 to Figure 10 is the schematic perspective view for the power cabinet that first embodiment of the invention provides.
Figure 11 is the structural schematic diagram of the heavy duty guide rail in the power cabinet that first embodiment of the invention provides.
Figure 12 is the structural schematic diagram of the auxiliary fixing member in the power cabinet that first embodiment of the invention provides.
Figure 13 is the structural block diagram for the current transformer that second embodiment of the invention provides.
Specific embodiment
Further to illustrate that the present invention is the technical means and efficacy realizing expected purpose and being taken, below in conjunction with attached drawing
And preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description is as follows.
Fig. 1 is the structural block diagram for the power cabinet 100 that first embodiment of the invention provides.Fig. 2 is the electricity of phase module 20 in Fig. 1
Road topological structure schematic diagram.As shown in Figure 1 to Figure 2, power cabinet 100 provided in this embodiment is included at least by 12 structure of braced frame
At cabinet body 10 and three phase modules 20, and three phase modules 20 distinguish vertical device the cavity 14 of power cabinet 100 top,
Middle part and lower part.
Specifically, in the present embodiment, each phase module 20 includes power cell 22, two current-limiting reactors L1, L2
And two absorption resistances R2, R3.
Further, power cell 22 include four IGCT V1, V2, V3, V4, four sustained diodes 1, D2, D3,
D4, two neutral point clamp diode D5, D6, two absorption diode D7, D8, two groups of clamp Absorption Capacitance C1, C2 and midpoint
Clamp resistance R1.
Wherein, the circuit connection signal of each phase module 20 is as shown in Fig. 2, specifically, four IGCTV1, V2, V3, V4 according to
Between the secondary cathode for being connected in series in sustained diode 1 and the anode of sustained diode 4, the anode of sustained diode 1 and continuous
The cathode of stream diode D2 is electrical connected, and the anode of sustained diode 2 and the cathode of sustained diode 3 are electrical connected, afterflow
The anode of diode D3 and the cathode of sustained diode 4 are electrical connected, and the cathode of neutral point clamp diode D5 is electrically connected at continuous
Flow the node between the anode of diode D1, the cathode of sustained diode 2, the anode and midpoint pincers of neutral point clamp diode D5
The cathode of position diode D6 is electrical connected, the anode of neutral point clamp diode D6 be electrically connected at the anode of sustained diode 3,
Node between the cathode of sustained diode 4, the anode of absorption diode D7 and the cathode of sustained diode 1 are electrical connected,
The cathode of absorption diode D7 passes sequentially through clamp Absorption Capacitance C1, C2 and the anode of absorption diode D8 is electrical connected, and absorbs
The cathode of diode D8 and the anode of sustained diode 4 are electrical connected, the first end and neutral point clamp two of neutral point clamp resistance R1
The cathode of pole pipe D5 is electrical connected, and the second end of neutral point clamp resistance R1 and the anode of neutral point clamp diode D6 are electrical connected.
Further, the first end of current-limiting reactor L1 and the anode of IGCT V1 are electrical connected, and the of current-limiting reactor L1
Two ends and the first end of absorption resistance R2 are electrical connected, and the second end of absorption resistance R2 is connected to absorption diode D7 and absorbs electricity
Holding the node between C1, the first end of current-limiting reactor L2 and the cathode of IGCT V4 are electrical connected, and the second of current-limiting reactor L2
End be connected with the first end of absorption resistance R3, the second end of absorption resistance R3 be connected to absorption diode D8 and Absorption Capacitance C2 it
Between node.
Fig. 3 to Figure 10 is please referred to, Fig. 3 is the schematic view of the front view for the power cabinet 100 that first embodiment of the invention provides,
Fig. 4 is schematic view of the front view of the power cabinet 100 that provides of first embodiment of the invention after removing power cell 22, Fig. 5
For the left view structural representation for the power cabinet 100 that first embodiment of the invention provides, Fig. 6 is what first embodiment of the invention provided
The backsight structural representation of power cabinet 100, Fig. 7 are that the power cabinet 100 that first embodiment of the invention provides is removing low-inductance bus
Backsight structural representation after 33, Fig. 8 are the overlooking structure diagram for the power cabinet 100 that first embodiment of the invention provides,
Fig. 9 to Figure 10 is the schematic perspective view for the power cabinet 100 that first embodiment of the invention provides.As shown in Figures 1 to 10, originally
The power cabinet 100 that embodiment provides includes the cabinet body 10 and three phase modules 20 that braced frame 12 is constituted, and three phase modules 20 divide
For not vertical device in top, middle part and the lower part of the cavity 14 of power cabinet 100, each phase module 20 includes two current-limiting reactors
24, two current-limiting reactors 24 corresponding with each phase module 20 are arranged on the rear end face 11 of power cabinet 100, and with it is corresponding
Phase module 20 against setting.Specifically, in the present embodiment, current-limiting reactor 24 is mainly the change rate for limiting electric current,
Protection power device is not subject to excessively high current changing rate.Into one, in order to enable power cabinet 100 is more compact, while simultaneous
Gu Tigao is maintainable, power cell 22 is placed using vertical, while will be on circuit and corresponding power cell 22 connects
The rear end face 11 of two current-limiting reactors 24 arrangements and power cabinet 100, so that the width direction of cabinet body 10 greatly reduces.
Specifically, in the present embodiment, braced frame 12 includes a plurality of first supporting element 121 that is vertically arranged and along cross
To a plurality of second supporting element 122 of setting.Specifically, in one embodiment, the first supporting element 121 is 4, the second supporting element
122 can be, but not limited to be 16, and specifically, every 4 the second supporting elements 122 are one group of same level that cabinet body 10 is arranged in
On, so that the cavity 14 of cabinet body 10 is divided into top, middle part and lower part by 4 group of second supporting element 122.
Specifically, in the present embodiment, two current-limiting reactors 24 in each phase module 20 pass through support metal plate respectively
Part 35 is fixed on the second supporting element 122 in the rear end face 11 of power cabinet 100, so that current-limiting reactor 24 can be with
Rear end face 11 against power cabinet 100 is arranged, and under the depth for not increasing power cabinet 100, reduces the broad-ruler of power cabinet 100
It is very little, so that the structure of power cabinet 100 is more compact, meet the needs of blower fan tower barrel.
Specifically, in the present embodiment, each phase module 20 further includes two absorption resistances 26, right with each phase module 20
Two absorption resistances 26 answered are arranged on the left side 15 of power cabinet 100, but not limited to this, such as in other embodiments
In, two absorption resistances 26 corresponding with each phase module 20 can also be arranged on the right side 17 of power cabinet 100.
Specifically, in the present embodiment, braced frame 12 can be, but not limited to further include a plurality of first be vertically arranged
Support plate 123 and a plurality of second support plate 124 being transversely arranged.Specifically, the first support plate 123 can be, but not limited to be 4
Item, the first support plate of two of them 123 are separately fixed on the second supporting element 122 on the left side 15 of power cabinet 100, in addition
Two the first support plates 123 are separately fixed on the right side 17 of power cabinet 100.Distinguish at the both ends of a plurality of second support plate 124
Be arranged on the left side 15 of power cabinet 100 in two the first support plates 123 or the first supporting element 121 with close to corresponding first
In first support plate 123 of support member 121.
Specifically, in the present embodiment, two absorption resistances 26 corresponding with each phase module 20 are separately fixed at power
In the second support plate 124 on the left side 15 of cabinet 100.Specifically, in one embodiment, to be mounted on power cabinet 100
It is described as follows for the phase module 20 on the top of cavity 14.It is mounted on second of 15 top of left side of power cabinet 100
Two absorption resistances 26 on fagging 124 vertically arrange, and one end of two absorption resistances 26 can share one second
Fagging 124, it should be noted that the top close to power cell 22 in two absorption resistances 26 is arranged, and two
Another in absorption resistance 26 is then arranged close to the lower part of power cell 22, distinguishes so as to shorten two absorption resistances 26
With the connection line of the corresponding power device in power cell 22, stray inductance is reduced.
Specifically, in the present embodiment, absorption resistance 26 is mainly the energy for absorbing current-limiting reactor 24 and storing above, is subtracted
The induced voltage of current-limiting reactor 24, guarantees the safety of power device when the small shutdown due to power device.
Specifically, in the present embodiment, power cabinet 100 further includes a short-circuit detecting plate 31, and short-circuit detecting plate 31 is mainly
The voltage on current-limiting reactor 24 is detected to determine whether short circuit.Specifically, it is arranged on the top of the left side of power cabinet 100 15
There is short-circuit detecting plate 31.Specifically, in one embodiment, short-circuit detecting plate 31 can be fixed at a left side for power cabinet 100
In the second support plate 124 on the top of side 15.
Specifically, in the present embodiment, there are three gate pole power supplys 32 for setting on the left side of power cabinet 100 15.Specifically
Ground, in one embodiment, the middle part of two in three gate pole power supplys 32 left sides 15 for being arranged in power cabinet 100, three
The lower part of one in a gate pole power supply 32 left side 15 for being arranged in power cabinet 100.Specifically, power cabinet 100 is set
One be located above in supermedial two gate pole power supplys 32 of left side 15 and 14 top of cavity that power cabinet 100 is set
Power cell 22 be electrically connected, be arranged under being located in supermedial two gate pole power supplys 32 of the left side 15 of power cabinet 100
One of side is electrically connected with the power cell 22 at 14 middle part of cavity that power cabinet 100 is arranged in.The left side of power cabinet 100 is set
The gate pole power supply 32 of the lower part in face 15 is electrically connected with the power cell 22 for 14 lower part of cavity that power cabinet 100 is arranged in.Three doors
Pole power supply 32 provides power supply to the driving of the power device in corresponding power cell 22 respectively.
Specifically, in the present embodiment, power cabinet 100 further includes three low-inductance bus 33.Specifically, in power cabinet 100
Rear end face 11 on be respectively arranged with low-inductance bus 33 corresponding with each phase module 20.Specifically, connected using low-inductance bus 33
It connects so that connecting stray inductance and reduces, help to improve the performance of power cell 22.
Specifically, in the present embodiment, each low-inductance bus 33 is fixed to function by corresponding epoxy plate (not shown go out)
On the support sheet metal component 35 of the rear end face 11 of rate cabinet 100, and each low-inductance bus 33 is located at the rear end face 11 of power cabinet 100
Between current-limiting reactor 24.
Specifically, in one embodiment, the fixation of low-inductance bus 33 is placed directly against low-inductance bus by using epoxy plate
Above 33, epoxy plate is recycled to be fixed on the support sheet metal component 35 on 100 rear end face of power cabinet, so as to compression horsepower cabinet
100 front and back space.Simultaneously dismantle low-inductance bus 33 when, can by epoxy plate with support sheet metal component 35 connection bolt tear open
After falling, low-inductance bus 33 and support sheet metal component 35, which are staggered, on the left and right directions of cabinet body 10 can facilitate taking-up low-inductance bus
33, and then the crossbeam on 100 rear end face of power cabinet can be made less, facilitate assembling and maintenance.
Specifically, in one embodiment, by the way that current-limiting reactor 24 to be arranged in the dead astern of corresponding phase module 20,
And the connection outlet of current-limiting reactor 24 is located next to the connection outlet of power cell 22, and low-inductance bus 33 is arranged in limit
24 rear end of reactor is flowed, so that current-limiting reactor 24 and the connection of low-inductance bus 33 are closer, so that connection is spuious
Inductance is smaller, is more advantageous to the performance for improving power device.
Specifically, in the present embodiment, the busbar that each phase module 20 is connect with the inside of power cabinet 100 (figure does not indicate)
It is arranged on the vacant position of corresponding phase module 20, and the mounting surface of each busbar both faces towards the front end face 13 of power cabinet 100
Setting.
Specifically, in one embodiment, the busbar in each power cell 22 can be, but not limited to include DC positive busbar
341, DC negative busbar 342, NP busbar 343, PH busbar 344, positive absorption busbar 345 and negative absorption busbar 346.Specifically, DC is being just
It is electrical in busbar 341, DC negative busbar 342, PH busbar 344, NP busbar 343, positive absorption busbar 345 and negative absorption busbar 346
Mounting hole (figure does not indicate) is arranged in the surrounding of power cell 22, and DC positive busbar 341, DC negative busbar 342, PH busbar
344, NP busbar 343, the positive electrical mounting hole absorbed in busbar 345 and negative absorption busbar 346 can orthographic projection in power cabinet
On 100 front end face 13, thus facilitate user from the front end face 13 of power cabinet 100 to DC positive busbar 341, DC negative busbar 342,
PH busbar 344, NP busbar 343, the bolt in the positive electrical mounting hole for absorbing busbar 345 and negative absorption busbar 346 are (not shown
Assembly and disassembly out).
Specifically, in the present embodiment, it is carried out for the power cell 22 at 14 middle part of cavity of power cabinet 100 is set
It is described as follows, the outwardly extending edge in top of the trailing flank of power cell 22, DC positive busbar is arranged in DC positive busbar 341
341 are arranged in the following outwardly extending edge of the trailing flank of power cell 22.Power cell 22 is arranged in NP busbar 343
The outwardly extending edge in the left side of trailing flank, PH busbar 344, which is arranged on the right of the trailing flank of power cell 22, to extend outwardly
Edge.The positive place that extends outwardly for absorbing busbar 345 and the left side of power cell 22 being set, and close to power cell 22
Top setting.The place that extends outwardly of the left side of power cell 22 is arranged in negative absorption busbar 346, and close to power cell 22
Lower part setting.Further, DC positive busbar 341, DC negative busbar 342, PH busbar 344, NP busbar 343, it is positive absorb busbar 345 and
End face where the electrical mounting hole of negative absorption busbar 346 is arranged in parallel with the front end face 13 of power cabinet 100, to facilitate use
Family is assembled and disassembled from bolt of the front end face to the electrical mounting hole of each busbar, facilitates user, and be able to satisfy the requirement of maintained from front end.
Specifically, in the present embodiment, power cabinet 100 further includes that connection busbar 37 connect busbar 38 with NP.Specifically, even
Busbar 37 is connect for current-limiting reactor 24 to be connect with low-inductance bus 33.NP connection busbar 38 is used for power cell 22 and low sense
Busbar 33 connects.
Please also refer to Figure 11, Figure 11 is the heavy duty guide rail 40 in the power cabinet 100 that first embodiment of the invention provides
Structural schematic diagram.As shown in Figure 1 to 11, power cabinet 100 provided in this embodiment further includes more heavy duty guide rails 40.Specifically
Ground, in one embodiment, heavy duty guide rail 40 can be, but not limited to as the six roots of sensation.Specifically, heavy duty guide rail 40 includes fixed part 42
And sliding part 44 specifically offers the strip sliding slot 422 for accommodating sliding part 44 on an end face of fixed part 42.Sliding part
44 are embedded in the sliding slot 422 of fixed part 42, and can slide along the extending direction of the sliding slot 422 of fixed part 42.Further, exist
The first end of fixed part 42 is equipped with the locking part 424 for locking sliding part 44.Specifically, after unlocking locking part 424,
The first end of sliding part 44 can be slided with along the chute 422 extending direction, and can skid off fixed part 42 first end it is outer
Portion.Further, limiting section (not shown go out) is additionally provided in the first end of fixed part 42, for limiting fixed sliding part 44
Second end, prevent the second end of sliding part 44 from skidding off the outside of the first end of fixed part 42.
Specifically, in the present embodiment, the top on the two sides of the cavity 14 of power cabinet 100, middle and top part are right respectively
Weighing device has two heavy duty guide rails 40, and the extending direction of every heavy duty guide rail 40 is consistent with the depth direction of power cabinet 100, often
A phase module 20 is fixedly connected with the sliding part 44 of corresponding heavy duty guide rail 40.Specifically, the fixed part 42 of heavy duty guide rail 40 can
To be fixed on the two sides of power cabinet 100 by fastening bolt, the sliding part 44 of heavy duty guide rail 40 passes through fastening bolt and power
The bottom of unit 22 is fixed.
Specifically, power cell 22 is installed to weight by using heavy duty guide rail 40 by power cabinet 100 provided in this embodiment
Above type guide rail 40, when power device needs replacing, DC positive busbar 341, DC negative busbar 342, PH mother are mounted on having dismantled
Row 344, NP busbar 343, bolt in the positive electrical mounting hole for absorbing busbar 345 and negative absorption busbar 346, and by heavy duty guide rail 40
Locking part 424 be unlocked after, easily the sliding part 44 of heavy duty guide rail 40 can be followed sliding corresponding power cell 22
It is dynamic and pulled into certain position, and then user is facilitated to safeguard corresponding power cell 22, without by power list
Member 22 is carried off out of power cabinet 100 to be come, and is facilitated user to repair, is improved maintenance efficiency.
Please also refer to Figure 12, Figure 12 is the auxiliary fixing member 50 in the power cabinet 100 that first embodiment of the invention provides
Structural schematic diagram.As shown in Figures 1 to 12, power cabinet 100 provided in this embodiment further includes multiple auxiliary fixing members 50.Tool
Body, in one embodiment, auxiliary fixing member 50 can with but be not limited to include first end 52 and with the first end 52
It is extended through on vertically disposed the second end 54, first end 52 and the second end 54 and offers mounting hole 58.Further,
First end 52 and the second end 54 can with but be not limited to obtain by one piece of sheet metal component by bending.Specifically, auxiliary is solid
Determining part 50 can also include third end 56, and specifically, third end 56 can be, but not limited to bending by first end 52
It arrives, third end 56 is vertically arranged with first end 52 and the second end 54 respectively.
Specifically, in the present embodiment, the front end face of each phase module 20 passes through multiple auxiliary fixing members 50 and power cabinet
Braced frame 12 on 100 front end face 13 connects.Specifically, in an embodiment, the front end face of each phase module 20 can be with
But it is not limited by 4 auxiliary fixing members 50 to be fixed, specifically, each auxiliary fixing member 50 is bolted on respectively
On the corner of power cell 22 and corresponding braced frame 12, to realize the fixed limit of power cell 22, power is avoided
The vibration during transportation or in the course of work of cabinet 100.
Specifically, in the present embodiment, the exchange end of each 22 rear end of power cell is arranged with a current sensor
72.Specifically, current sensor 72 predominantly detects the electric current that power cell 22 exchanges end, according to the electric current setting control detected
Input condition processed.
Specifically, in the present embodiment, the rear portion of power cabinet 100 is through with the main inlet and outlet pipes 62 of current transformer, power cabinet
The main inlet and outlet pipes 64 of each power cell 22 in 100 can be, but not limited to the master by Straub's connector 63 and current transformer
Inlet and outlet pipes 62 are attached.Specifically, in one embodiment, the master of each power cell 22 in power cabinet 100 into
Outlet pipe 64 draws the water inlet pipe 66 and outlet pipe 68 of corresponding power device above, wherein the main inlet and outlet pipes 62 of current transformer
Main inlet and outlet pipes 64 with power cell 22 are two, and one is main water inlet tube, and another is primary flow pipe, specifically, function
The water inlet pipe 66 of rate device is connect with the main water inlet tube of power cell 22, the outlet pipe 68 of power device and the master of power cell 22
Outlet pipe connection.
Specifically, in the present embodiment, absorption resistance 26 and current-limiting reactor 24 are also water-cooling, 26 He of absorption resistance
The master of disengaging water route corresponding power cell 22 from the main inlet and outlet pipes 62 of current transformer and power cabinet 100 of current-limiting reactor 24
Inlet and outlet pipes 64 are drawn above, and then shorten the disengaging water route of absorption resistance 26 and current-limiting reactor 24.
Figure 13 is please referred to, Figure 13 is the structural block diagram for the current transformer 200 that second embodiment of the invention provides.Such as Figure 13 institute
Show, current transformer 200 provided in this embodiment includes power cabinet 210.Specifically, in the present embodiment, the specific knot of power cabinet 210
Structure please refers to the description of the power cabinet 100 in embodiment shown in Fig. 1 to Figure 12, and details are not described herein.
Power cabinet and current transformer provided in an embodiment of the present invention, by by three vertical devices of phase module power cabinet chamber
Top, middle part and the lower part of body, and corresponding two current-limiting reactors of phase module are arranged on the rear end face of power cabinet, thus
It enables to the structure of power cabinet more compact, and the size of power cabinet in the direction of the width is substantially reduced, meets in blower
Requirement of the tower to size.
More than, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention has been disclosed in a preferred embodiment above, however is not limited to invent, any person skilled in the art, not
It is detached within the scope of inventive technique scheme, when the technology contents using the disclosure above make a little change or are modified to equivalent variations
Equivalent embodiment, but all without departing from inventive technique scheme content, the technical spirit according to invention makees above embodiments
Any simple modification, equivalent change and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of power cabinet, which is characterized in that the power cabinet include braced frame constitute cabinet body and three phase modules, three
The phase module distinguishes vertical device on the top, middle part and lower part of the cavity of the power cabinet, and each phase module includes
Two current-limiting reactors, two current-limiting reactors corresponding with each phase module are arranged in the rear end face of the power cabinet
On, and with corresponding phase module against setting.
2. power cabinet as described in claim 1, which is characterized in that each phase module further includes two absorption resistances, with
Corresponding two absorption resistances of each phase module are arranged on the left side of the power cabinet.
3. power cabinet as described in claim 1, which is characterized in that each phase module is connect with the inside of the power cabinet
Busbar be arranged on the vacant position of corresponding phase module, and the mounting surface of each busbar both faces towards the front end of the power cabinet
Face setting.
4. power cabinet as described in claim 1, which is characterized in that the top of the left side of the power cabinet is provided with short circuit
Detection plate.
5. power cabinet as described in claim 1, which is characterized in that there are three gate poles for setting on the left side of the power cabinet
Power supply, the middle part of two in the three gate pole power supplys left sides for being arranged in the power cabinet, three gate poles electricity
The lower part of one in the source left side for being arranged in the power cabinet.
6. power cabinet as described in claim 1, which is characterized in that be respectively arranged on the rear end face of the power cabinet with often
The corresponding low-inductance bus of a phase module.
7. power cabinet as claimed in claim 6, which is characterized in that each low-inductance bus is fixed by corresponding epoxy plate
Onto the support metal plate of the rear end face of the power cabinet, and each low-inductance bus is located at the rear end face of the power cabinet
Between the current-limiting reactor.
8. power cabinet as described in claim 1, which is characterized in that top, middle part on the two sides of the cavity of the power cabinet
And respectively symmetrically device has two heavy duty guide rails, depth of the extending direction of the every heavy duty guide rail with the power cabinet for lower part
Degree direction is consistent, and each phase module is fixedly connected with the sliding part of corresponding heavy duty guide rail.
9. power cabinet as described in claim 1, which is characterized in that the front end face of each phase module is solid by multiple auxiliary
Determine part to connect with the braced frame on the front end face of the power cabinet.
10. a kind of current transformer, which is characterized in that the current transformer includes power as claimed in any one of claims 1-9 wherein
Cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236379.4A CN110311537B (en) | 2018-03-21 | 2018-03-21 | Power cabinet and converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236379.4A CN110311537B (en) | 2018-03-21 | 2018-03-21 | Power cabinet and converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110311537A true CN110311537A (en) | 2019-10-08 |
| CN110311537B CN110311537B (en) | 2021-03-16 |
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| CN201810236379.4A Active CN110311537B (en) | 2018-03-21 | 2018-03-21 | Power cabinet and converter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114257108A (en) * | 2020-09-22 | 2022-03-29 | 株洲变流技术国家工程研究中心有限公司 | Three-level converter module |
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