CN204614624U - A kind of Novel photovoltaic contravariant transformer - Google Patents

A kind of Novel photovoltaic contravariant transformer Download PDF

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Publication number
CN204614624U
CN204614624U CN201520288350.2U CN201520288350U CN204614624U CN 204614624 U CN204614624 U CN 204614624U CN 201520288350 U CN201520288350 U CN 201520288350U CN 204614624 U CN204614624 U CN 204614624U
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CN
China
Prior art keywords
winding
input
reactor
tap
protective casing
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Expired - Fee Related
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CN201520288350.2U
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Chinese (zh)
Inventor
张建
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JIANGXI XINGU ELECTRIC Co Ltd
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JIANGXI XINGU ELECTRIC Co Ltd
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Priority to CN201520288350.2U priority Critical patent/CN204614624U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model relates to a kind of Novel photovoltaic contravariant transformer, comprise protective casing, reactor and tap-changing windings, protective casing upper surface establishes input terminal and outlet terminal, reactor and tap-changing windings all at least one and be positioned at protective casing, and isolated by aluminium foil guard screen between reactor and tap-changing windings, tap-changing windings comprises core limb, input winding, export winding and inductance coil, wherein inputting winding is looped around on core limb, exporting winding is looped around outside input winding, inductance coil distributes around core limb, and its one end and output windings in series, the other end is connected with outlet terminal, reactor is another respectively with input terminal and input windings in series.This novel small in volume, and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, and the needs of larger current output can be met, also eliminate independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.

Description

A kind of Novel photovoltaic contravariant transformer
Technical field
The utility model relates to a kind of Novel photovoltaic contravariant transformer, belongs to photovoltaic generation technical field of transformer equipment.
Background technology
At present when carrying out photovoltaic generation, the electric energy sent due to photovoltaic is direct current, therefore in order to meet the needs be connected with power supply grid, usually need to be reverse into alternating current by power transformer to the electric energy that photovoltaic sends, then grid-connected power supply can be realized after carrying out voltage modulated, method the most frequently used is at present that the electric energy that transferred out by photovoltaic system is after the equipment such as reactor processes after filtering, then contravariant transformer is utilized to carry out modulation treatment to voltage, although this kind of method can meet the needs of inversion, but whole inversion voltage-regulating system relative complex, deadweight, volume and floor space larger, and current used contravariant transformer also also exists the drawback owing to lacking necessary safeguard procedures simultaneously, thus cause transformer to there is this serious eddy current loss and leakage inductance phenomenon, thus it is larger to result in energy loss when transformer runs on the one hand, operating efficiency is relatively low, therefore in the urgent need to developing a kind of novel dynamical photovoltaic power generation transformer, with the needs that satisfied reality uses.
Utility model content
For the deficiency that prior art exists, the utility model provides a kind of Novel photovoltaic contravariant transformer, this new structure is simple, rationally distributed, small in volume, and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, and can meet the needs of larger current output, also eliminates independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
To achieve these goals, the utility model realizes by the following technical solutions:
A kind of Novel photovoltaic contravariant transformer, comprise protective casing, reactor and tap-changing windings, wherein protective casing is confined space structure, and its upper surface establishes input terminal and outlet terminal, reactor and tap-changing windings all at least one and be positioned at protective casing, and isolated by aluminium foil guard screen between reactor and tap-changing windings, tap-changing windings comprises core limb, input winding, export winding and inductance coil, wherein inputting winding is looped around on core limb, and distribute with core limb is concentric, exporting winding is looped around outside input winding, and with input, winding is concentric distributes, and separately establish aluminium foil guard screen to isolate between input winding and output winding, inductance coil distributes around core limb, and its one end and output windings in series, the other end is connected with outlet terminal, input winding, output winding and inductance coil outer surface separately have insulating resin composite protection layer, aluminium foil guard screen is separately established to isolate between inductance coil and output winding, aluminium foil guard screen and protective casing, core limb, input winding, export winding, all insulator is established between inductance coil and aluminium foil guard screen, reactor is another respectively with input terminal and input windings in series.
Further, described protective casing inner surface separately covers insulating protective layer, and protective casing outer surface establishes heating panel.
Further, described aluminium foil guard screen comprises rigid insulation base material and aluminium foil, and wherein Aluminium Foil Package overlays on outside rigid insulation base material, and at least one deck.
Further, when establishing multiple tap-changing windings in described protective casing, then the input winding between multiple tap-changing windings, output winding are connected by bus bar, and are isolated by insulator between adjacent bus bar, when establishing multiple reactor in protective casing, then connect successively between reactor.
This new structure is simple, rationally distributed, small in volume, and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, and can meet the needs of larger current output, also eliminates independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
Accompanying drawing explanation
The utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is this new structure schematic diagram;
Fig. 2 is aluminium foil guard screen structural scheme of mechanism.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
A kind of Novel photovoltaic contravariant transformer as described in Figure 1, comprise protective casing 1, reactor 2 and tap-changing windings 3, wherein protective casing 1 is confined space structure, and its upper surface establishes input terminal 4 and outlet terminal 5, reactor 2 and tap-changing windings 3 equal at least one and be positioned at protective casing 1, and to be isolated by aluminium foil guard screen 6 between reactor 2 and tap-changing windings 3.
In the present embodiment, described tap-changing windings 3 comprises core limb 31, input winding 32, export winding 33 and inductance coil 34, wherein inputting winding 32 is looped around on core limb 31, and distribute with core limb 31 is concentric, exporting winding 33 is looped around outside input winding 32, and with input, winding 32 is concentric distributes, and separately establish aluminium foil guard screen 6 to isolate between input winding 32 and output winding 33, inductance coil 31 distributes around core limb 31, and connect with output winding 33 in its one end, the other end is connected with outlet terminal 5, input winding 32, output winding 33 and inductance coil 34 outer surface separately have insulating resin composite protection layer 35, aluminium foil guard screen 6 is separately established to isolate between inductance coil 34 and output winding 33, aluminium foil guard screen 6 and protective casing 1, core limb 31, input winding 32, export winding 33, insulator 7 is all established between inductance coil 34 and aluminium foil guard screen 6, reactor 2 is another respectively with input terminal 4 and input winding 31 and connect.
Further, described protective casing 1 inner surface separately covers insulating protective layer 8, and protective casing 1 outer surface establishes heating panel 9.
Further, described aluminium foil guard screen 6 comprises rigid insulation base material 61 and aluminium foil 62, and wherein aluminium foil 62 is coated on outside rigid insulation base material 61, and at least one deck.
Further, when establishing multiple tap-changing windings 3 in described protective casing 1, input winding 31 then between multiple tap-changing windings 3, output winding 32 are connected by bus bar 36, and isolated by insulator 7 between adjacent bus bar 36, when establishing multiple reactor 2 in protective casing 1, then connect successively between reactor 2.
This new structure is simple, rationally distributed, small in volume, and there is good Short Circuit withstand, antijamming capability, electromagnetic eddy loss is little, and can meet the needs of larger current output, also eliminates independently filter reactance device simultaneously, greatly simplify photovoltaic inversion voltage-regulating system, improve the operating efficiency of transformer.
General principle and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. a Novel photovoltaic contravariant transformer, it is characterized in that: described photovoltaic inversion transformer comprises protective casing, reactor and tap-changing windings, wherein said protective casing is confined space structure, and its upper surface establishes input terminal and outlet terminal, described reactor and tap-changing windings all at least one and be positioned at protective casing, and isolated by aluminium foil guard screen between reactor and tap-changing windings, described tap-changing windings comprises core limb, input winding, export winding and inductance coil, wherein said input winding is looped around on core limb, and distribute with core limb is concentric, described output winding is looped around outside input winding, and with input, winding is concentric distributes, and separately establish aluminium foil guard screen to isolate between described input winding and output winding, described inductance coil distributes around core limb, and its one end and output windings in series, the other end is connected with outlet terminal, described input winding, output winding and inductance coil outer surface separately have insulating resin composite protection layer, aluminium foil guard screen is separately established to isolate between described inductance coil and output winding, described aluminium foil guard screen and protective casing, core limb, input winding, export winding, all insulator is established between inductance coil and aluminium foil guard screen, described reactor is another respectively with input terminal and input windings in series.
2. a kind of Novel photovoltaic contravariant transformer according to claim 1, is characterized in that, described protective casing inner surface separately covers insulating protective layer, and protective casing outer surface establishes heating panel.
3. a kind of Novel photovoltaic contravariant transformer according to claim 1, is characterized in that, described aluminium foil guard screen comprises rigid insulation base material and aluminium foil, and wherein Aluminium Foil Package overlays on outside rigid insulation base material, and at least one deck.
4. a kind of Novel photovoltaic contravariant transformer according to claim 1, it is characterized in that, when establishing multiple tap-changing windings in described protective casing, input winding then between multiple tap-changing windings, output winding are connected by bus bar, and isolated by insulator between adjacent bus bar, when establishing multiple reactor in protective casing, then connect successively between reactor.
CN201520288350.2U 2015-05-07 2015-05-07 A kind of Novel photovoltaic contravariant transformer Expired - Fee Related CN204614624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520288350.2U CN204614624U (en) 2015-05-07 2015-05-07 A kind of Novel photovoltaic contravariant transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520288350.2U CN204614624U (en) 2015-05-07 2015-05-07 A kind of Novel photovoltaic contravariant transformer

Publications (1)

Publication Number Publication Date
CN204614624U true CN204614624U (en) 2015-09-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105225811A (en) * 2015-10-21 2016-01-06 国家电网公司 A kind of invention photovoltaic inversion transformer
CN105261464A (en) * 2015-11-09 2016-01-20 国家电网公司 Low-loss transformer for photovoltaic power generation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105225811A (en) * 2015-10-21 2016-01-06 国家电网公司 A kind of invention photovoltaic inversion transformer
CN105261464A (en) * 2015-11-09 2016-01-20 国家电网公司 Low-loss transformer for photovoltaic power generation

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150902

Termination date: 20170507

CF01 Termination of patent right due to non-payment of annual fee