CN209526660U - Novel electric power electric transformer device suitable for the application of more scenes - Google Patents
Novel electric power electric transformer device suitable for the application of more scenes Download PDFInfo
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- CN209526660U CN209526660U CN201920690170.5U CN201920690170U CN209526660U CN 209526660 U CN209526660 U CN 209526660U CN 201920690170 U CN201920690170 U CN 201920690170U CN 209526660 U CN209526660 U CN 209526660U
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Abstract
The utility model discloses a kind of novel electric power electric transformer devices suitable for the application of more scenes, including A phase high-voltage alternating end, B phase high-voltage alternating end, C phase high-voltage alternating end, A phase inversion module, B phase inversion module, C phase inversion module, DC bus, DC port and AC port；DC port is connect by DC/DC converter with DC bus, and AC port is connect by AC/DC converter with DC bus；A phase inversion module, B phase inversion module, C phase inversion module are set and realize DC bus and A phase high-voltage alternating end, B phase high-voltage alternating end, the transformation of electrical energy between C phase high-voltage alternating end, DC port and AC port are also configured for connecting with extraneous alternating current-direct current load or power of alterating and direct current, port can configure on demand, it can be realized the transformation of electrical energy of diversified forms, by integrating, reduce number of peripheral devices, O&M is facilitated to overhaul, breakpoint in system is reduced, and reduces system loss.
Description
Technical field
The utility model relates to field of electrical equipment, in particular to a kind of novel electric power electric suitable for the application of more scenes
Device for transformer.
Background technique
The design scheme of traditional photovoltaic energy storage system or micro-grid system needs to complete through individual inversion rectifier equipment
DC/AC transformation is connected with bulk power grid again by AC transformer boosting.Equipment is more in legacy system scheme, equipment land occupation
Space relatively disperses, and breakpoint increases in system, and system jam probability increases with it, and corresponding fault point can also increase, by
It is difficult in time coordinations between the superior and the subordinate, cause fault point protection scope indefinite, it is possible to overstepping phenomenon occurs,
O&M maintenance difficulty is caused to increase；Equipment, which increases, simultaneously also results in system loss increase.
Utility model content
The purpose of this utility model is that at least solving one of the technical problems existing in the prior art, a kind of be applicable in is provided
Number of peripheral devices is reduced by integrating in the novel electric power electric transformer device of more scenes application, facilitates O&M
It overhauls, the breakpoint in system is reduced, and reduces system loss.
The utility model in a first aspect, provide it is a kind of suitable for more scenes application novel electric power electric transformer dress
It sets, including A phase high-voltage alternating end, B phase high-voltage alternating end, C phase high-voltage alternating end, A phase inversion module, B phase inversion module, C phase
Conversion module, DC bus, DC port and AC port；The A phase inversion module, B phase inversion module and C phase inversion module
It include the identical submodule of quantity, the submodule includes the first inductance, the second inductance and sequentially connected first rectification
Bridge, first capacitor, inverter bridge, isolating transformer, the second arrangement bridge and the second capacitor, second capacitor both ends are separately connected institute
The positive and negative anodes of DC bus are stated, first inductance and the second inductance are separately connected two exchanges input of first rectifier bridge
End；First inductance connection of first submodule of the A phase inversion module is to the A phase high-voltage alternating end, the A phase inversion
Second inductance connection of first submodule of module to next submodule the first inductance；The of the B phase inversion module
First inductance connection of one submodule is to the B phase high-voltage alternating end, and the of first submodule of the B phase inversion module
Two inductance connections to next submodule the first inductance；First inductance of first submodule of the C phase inversion module connects
It is connected to the C phase high-voltage alternating end, the second inductance connection of first submodule of the C phase inversion module to next submodule
First inductance of block；Second electricity of the last one submodule of the A phase inversion module, B phase inversion module and C phase inversion module
Sense links together；The DC port is connect by DC/DC converter with the DC bus, and the AC port passes through
AC/DC converter is connect with the DC bus.
Above-mentioned novel electric power electric transformer device at least has the following beneficial effects: setting A phase inversion module, B phase transformation
Change the mold block, C phase inversion module realizes DC bus and A phase high-voltage alternating end, B phase high-voltage alternating end, between C phase high-voltage alternating end
Transformation of electrical energy, also configure DC port and AC port for connect with extraneous alternating current-direct current load or power of alterating and direct current, end
Mouth can configure on demand, can be realized the transformation of electrical energy of diversified forms, by integrating, reduce number of peripheral devices, side
Just O&M overhauls, and the breakpoint in system is reduced, and reduces system loss.
A kind of novel electric power electric transformer suitable for the application of more scenes according to the utility model first aspect
Device, the DC port include the bidirectional, dc port for connecting with energy storage device and the list for connecting with DC load
To DC port.When needing to connect with DC load, Unidirectional direct-current port is configured, when needs and energy storage device such as battery
When, bidirectional, dc port is configured, port number can according to need to configure.
A kind of novel electric power electric transformer suitable for the application of more scenes according to the utility model first aspect
Device, the AC port include input AC port for connecting with photovoltaic power generation apparatus and for connecting with AC load
Output AC port, the input AC port is connect by MPPT controller with the DC bus.When needs and exchange
When load connects, configuration output AC port configures input AC port and MPPT control when needing to configure photovoltaic power generation apparatus
Device processed, port number can according to need to configure.
Preferably, the voltage class of the DC bus is 600-800V, the A phase high-voltage alternating end, B phase high-voltage alternating
The voltage class at end and C phase high-voltage alternating end is 10kV, and the A phase inversion module, B phase inversion module and C phase inversion module are equal
Including 13 submodules.
A kind of novel electric power electric transformer suitable for the application of more scenes according to the utility model first aspect
Device, first rectifier bridge, inverter bridge and the second arrangement bridge include the switching tube that four bridge-types connect, and the switching tube is equal
It is parallel with freewheeling diode and Absorption Capacitance.Preferably, the switching tube is p-type field-effect tube.Freewheeling diode is for absorbing
Surge voltage when switching tube turns off, Absorption Capacitance are opened for absorbing freewheeling diode Reverse recovery surge voltage to reduce
Close the switching loss of pipe.
Detailed description of the invention
The utility model is further explained with reference to the accompanying drawings and examples；
Fig. 1 is a kind of novel electric power electric transformer dress suitable for the application of more scenes provided by the embodiment of the utility model
The structural schematic diagram set.
Specific embodiment
This part will be described in specific embodiment of the utility model, and the preferred embodiment of the utility model is in the accompanying drawings
It shows, the effect of attached drawing is the description with figure supplementary explanation book word segment, enables a person to intuitively, visually understand originally
The each technical characteristic and overall technical architecture of utility model, but it should not be understood as the limit to scope of protection of the utility model
System.
In the description of the present invention, it should be understood that be related to orientation description, such as above and below, it is forward and backward, left,
The orientation or positional relationship of right equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical
Novel and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific side
Position construction and operation, therefore should not be understood as limiting the present invention.
It is several in the description of the present invention, to be meant that one or more, it is multiple to be meant that two or more, greatly
In, be less than, more than etc. be interpreted as not including this number, it is above, following, within etc. be interpreted as including this number.If there is being described to
One, it second is only intended to for the purpose of distinguishing technical characteristic, is not understood to indicate or imply relative importance or implicit finger
The quantity of bright indicated technical characteristic or the precedence relationship for implicitly indicating indicated technical characteristic.
In the description of the utility model, unless otherwise restricted clearly, the words such as setting, installation, connection should do broad sense reason
Solution, skilled artisan can rationally determine above-mentioned word in the utility model with the particular content of combination technology scheme
In concrete meaning.
Referring to Fig.1, one embodiment of the utility model provides a kind of novel electric power electric suitable for the application of more scenes
Device for transformer, including A phase high-voltage alternating end 11, B phase high-voltage alternating end 12, C phase high-voltage alternating end 13, A phase inversion module 21,
B phase inversion module 22, C phase inversion module 23, DC bus 30, DC port and AC port；The A phase inversion module 21, B
Phase inversion module 22 and C phase inversion module 23 include the identical submodule 20 of quantity, and the submodule 20 includes the first inductance
L1, the second inductance L2 and sequentially connected first rectifier bridge 24, first capacitor C1, inverter bridge 25, isolating transformer 26, second
Arranging bridge 27 and the second capacitor C2, the both ends the second capacitor C2 are separately connected the positive and negative anodes of the DC bus 30, and described the
One inductance L1 and the second inductance L2 is separately connected two ac input ends of first rectifier bridge 24；The A phase inversion module
First inductance L1 of 21 first submodule 20 is connected to the A phase high-voltage alternating end 11, and the of the A phase inversion module 21
Second inductance L2 of one submodule 20 is connected to the first inductance L1 of next submodule 20；The B phase inversion module 22
First inductance L1 of first submodule 20 is connected to the B phase high-voltage alternating end 12, and first of the B phase inversion module 22
Second inductance L2 of submodule 20 is connected to the first inductance L1 of next submodule 20；The first of the C phase inversion module 23
First inductance L1 of a submodule 20 is connected to the C phase high-voltage alternating end 13, first submodule of the C phase inversion module 23
Second inductance L2 of block 20 is connected to the first inductance L1 of next submodule 20；The A phase inversion module 21, B phase transformation mold changing
Second inductance L2 of block 22 and the last one submodule 20 of C phase inversion module 23 links together；The DC port passes through
DC/DC converter 41 is connect with the DC bus 30, and the AC port passes through AC/DC converter 51 and the DC bus
30 connections.
In the present embodiment, A phase inversion module 21, B phase inversion module 22, C phase inversion module 23 are set and realize that direct current is female
Line 30 and A phase high-voltage alternating end 11, B phase high-voltage alternating end 12, the transformation of electrical energy between C phase high-voltage alternating end 13, also configure straight
For connecting with extraneous alternating current-direct current load or power of alterating and direct current, port can configure on demand, can for flow port and AC port
It realizes that the transformation of electrical energy of diversified forms reduces number of peripheral devices by integrating, facilitates O&M to overhaul, in system
Breakpoint is reduced, and reduces system loss.
Referring to Fig.1, another embodiment according to the present utility model also provides a kind of suitable for the novel of more scenes application
Electric power electric transformer device, wherein the DC port include bidirectional, dc port 42 for being connect with energy storage device and
Unidirectional direct-current port 43 for being connect with DC load.
In the present embodiment, when needing to connect with DC load, Unidirectional direct-current port 43 is configured, when needs and energy storage fill
When setting such as battery, bidirectional, dc port 42 is configured, port number can according to need to configure.
Referring to Fig.1, another embodiment according to the present utility model also provides a kind of suitable for the novel of more scenes application
Electric power electric transformer device, wherein the AC port includes the input AC port for connecting with photovoltaic power generation apparatus
52 and the output AC port 53 for connecting with AC load, the input AC port 52 passes through MPPT controller 54 and institute
State the connection of DC bus 30.
In the present embodiment, it when needing connect with AC load, configures and exports AC port 53, when needing to configure photovoltaic
When power generator, configuring input AC port 52 and MPPT controller 54, port number can according to need to configure.MPPT control
Full name " MPPT maximum power point tracking " Maximum Power Point Tracking solar controller of device processed, is traditional sun
The upgraded product of energy charging-discharging controller.MPPT controller is capable of the generating voltage of detecting real-time solar panels, and tracks
Ceiling voltage current value (VI) makes system charge with maximum power output to battery, is applied in solar energy photovoltaic system, association
Adjust solar panel, battery, load work, be the brain of photovoltaic system.
Preferably, the voltage class of the DC bus 30 is 600-800V, the A phase high-voltage alternating end 11, B phase high pressure
The voltage class for exchanging end 12 and C phase high-voltage alternating end 13 is 10kV, the A phase inversion module 21, B phase inversion module 22 and C
Phase inversion module 23 includes 13 submodules 20.
Referring to Fig.1, another embodiment according to the present utility model also provides a kind of suitable for the novel of more scenes application
Electric power electric transformer device, wherein it includes four bridge-types that first rectifier bridge 24, inverter bridge 25 and second, which arrange bridge 27,
The switching tube of connection, the switching tube are parallel with freewheeling diode and Absorption Capacitance.Preferably, the switching tube is p-type field
Effect pipe.
In the present embodiment, freewheeling diode is used to absorb surge voltage when switching tube turns off, and Absorption Capacitance is for inhaling
Freewheeling diode Reverse recovery surge voltage is received, to reduce the switching loss of switching tube.
The utility model embodiment is explained in detail above in conjunction with attached drawing, but the utility model is not limited to above-mentioned reality
Example is applied, within the scope of knowledge possessed by those of ordinary skill in the art, the utility model ancestor can also not departed from
Various changes can be made under the premise of purport.
Claims (6)
1. a kind of novel electric power electric transformer device suitable for the application of more scenes, which is characterized in that including A phase high-voltage alternating
End, B phase high-voltage alternating end, C phase high-voltage alternating end, A phase inversion module, B phase inversion module, C phase inversion module, DC bus,
DC port and AC port；The A phase inversion module, B phase inversion module and C phase inversion module include the identical son of quantity
Module, the submodule include the first inductance, the second inductance and sequentially connected first rectifier bridge, first capacitor, inverter bridge,
Isolating transformer, the second arrangement bridge and the second capacitor, second capacitor both ends are separately connected the positive and negative anodes of the DC bus,
First inductance and the second inductance are separately connected two ac input ends of first rectifier bridge；The A phase inversion module
First submodule the first inductance connection to the A phase high-voltage alternating end, first submodule of the A phase inversion module
The second inductance connection to next submodule the first inductance；First electricity of first submodule of the B phase inversion module
Sense is connected to the B phase high-voltage alternating end, and the second inductance connection of first submodule of the B phase inversion module is to next
First inductance of submodule；First inductance connection of first submodule of the C phase inversion module is to the C phase high-voltage alternating
End, the first inductance of the second inductance connection of first submodule of the C phase inversion module to next submodule；The A
Phase inversion module, B phase inversion module are together with the second inductance connection of the last one submodule of C phase inversion module；It is described
DC port connect by DC/DC converter with the DC bus, the AC port by AC/DC converter with it is described directly
Flow bus connection.
2. a kind of novel electric power electric transformer device suitable for the application of more scenes according to claim 1, feature
It is, the DC port includes the bidirectional, dc port for connecting with energy storage device and the list for connecting with DC load
To DC port.
3. a kind of novel electric power electric transformer device suitable for the application of more scenes according to claim 1, feature
It is, the AC port includes input AC port for connecting with photovoltaic power generation apparatus and for connecting with AC load
Output AC port, the input AC port is connect by MPPT controller with the DC bus.
4. a kind of novel electric power electric transformer device suitable for the application of more scenes according to claim 1, feature
It is, the voltage class of the DC bus is 600-800V, and the A phase high-voltage alternating end, the phase high-voltage alternating end B and C phase are high
The voltage class at pressure exchange end is 10kV, and the A phase inversion module, B phase inversion module and C phase inversion module include 13 sons
Module.
5. a kind of novel electric power electric transformer device suitable for the application of more scenes according to claim 1, feature
It is, first rectifier bridge, inverter bridge and the second arrangement bridge include the switching tube that four bridge-types connect, and the switching tube is equal
It is parallel with freewheeling diode and Absorption Capacitance.
6. a kind of novel electric power electric transformer device suitable for the application of more scenes according to claim 5, feature
It is, the switching tube is p-type field-effect tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920690170.5U CN209526660U (en) | 2019-05-14 | 2019-05-14 | Novel electric power electric transformer device suitable for the application of more scenes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920690170.5U CN209526660U (en) | 2019-05-14 | 2019-05-14 | Novel electric power electric transformer device suitable for the application of more scenes |
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| Publication Number | Publication Date |
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| CN209526660U true CN209526660U (en) | 2019-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219375A (en) * | 2021-03-29 | 2021-08-06 | 广东电网有限责任公司 | Method and system for testing operation reliability of power electronic transformer |
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2019
- 2019-05-14 CN CN201920690170.5U patent/CN209526660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219375A (en) * | 2021-03-29 | 2021-08-06 | 广东电网有限责任公司 | Method and system for testing operation reliability of power electronic transformer |
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