CN201663041U - High-impedance transformer for solar power generation - Google Patents
High-impedance transformer for solar power generation Download PDFInfo
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- CN201663041U CN201663041U CN2010201590145U CN201020159014U CN201663041U CN 201663041 U CN201663041 U CN 201663041U CN 2010201590145 U CN2010201590145 U CN 2010201590145U CN 201020159014 U CN201020159014 U CN 201020159014U CN 201663041 U CN201663041 U CN 201663041U
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- transformer
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- limiting reactor
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- solar power
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Abstract
The utility model provides a high-impedance transformer for solar power generation. The high-impedance transformer comprises a transformer and a current-limiting reactor; the current-limiting reactor mounted at the inner part of the transformer is connected in series with a low-voltage winding of the transformer; and the current-limiting reactor adopts an iron-core reactor. The high-impedance transformer has the advantages of simple structure and high reliability; as the current-limiting reactor is positioned at the inner part of the transformer, the impact of short-circuit current on the winding connected in series with the current-limiting reactor can be minimized; as the current-limiting reactor is connected with the low-voltage winding with low anti-short circuit ability, the far-end short-circuit fault impact bearing ability of the low-voltage winding of the transformer is improved, and the low-voltage near-end outlet short-circuit fault bearing ability is also greatly improved, so that the anti-short circuit ability of the transformer is greatly improved, and the operation reliability of the transformer is correspondingly greatly improved.
Description
Technical field
The utility model relates to a kind of high-impedance transformer that is applied in the solar power system.
Background technology
Solar power system is made up of solar panel (group), controller for solar, storage battery (group).As out-put supply is alternating current 220V or 110V, also needs to dispose inverter.Solar panel is the core in the solar power system, and its effect is that the radianting capacity with the sun is converted to electric energy, or is sent in the storage battery and stores, or promotes loaded work piece.The effect of controller for solar is a control whole system operation state, and storage battery is played the effect of additives for overcharge protection, over.In the bigger place of the temperature difference, qualified controller also should possess the function of temperature-compensating.The effect of storage battery be when illumination is arranged with the electrical power storage that solar panel sent, it's time to needs to discharge again.The direct output of solar energy generally all is 12VDC, 24VDC, 48VDC.For providing electric energy to the ac electric apparatus of 220VAC, the direct current energy that solar power system sent need be converted to AC energy, therefore need to use power supply change-over device DC-AC inverter, convert direct current to alternating current.
Chinese patent literature CN1337775 discloses a kind of " solar generator and inversion step-up circuit thereof ", form inversion step-up circuit by two outputs access by inversion promotion circuit, the power amplifying part of two groups of symmetries, step-up transformer in solar battery group and the batteries that stores solar energy, low-voltage DC is converted to the alternating current output consistent with source power supply voltage and frequency, be connected with commercial power load, solar energy converting is become electric energy, be used for family and use.This patent documentation adopts step-up transformer to boost, but the treatment measures when not providing circuit and being short-circuited, the power transmission and distribution loss is big, and the solar power generation efficiency of transmission is low.Existing transformer anti-short circuit capability is relatively poor, in addition owing to be subjected to circuit breaker to cut-off the restriction of capacity, some circuits are to improve impedance as solution, in order to reduce the short circuit current in the circuit, often select non-standard high-impedance transformer for use, though the anti-short circuit capability of such transformer is improved, its cost is higher, complex structure.
Summary of the invention
The utility model provides a kind of anti-short circuit capability strong, reliable solar power generation high-impedance transformer at the problem that existing solar power system transformation technology exists.
Solar power generation of the present utility model adopts following technical solution with high-impedance transformer:
This solar power generation comprises transformer and current limiting reactor with high-impedance transformer, and current limiting reactor is installed in transformer inside, and the low pressure windings in series of current limiting reactor and transformer, and current limiting reactor is an iron-core reactor.
The utility model is simple in structure, reliability is high, because current limiting reactor is positioned at transformer inside, can reduce the impact of the short circuit current pair winding that is in series with it to greatest extent, the low pressure winding more weak owing to current limiting reactor and anti-short circuit capability links to each other, the ability of the low pressure winding of transformer tolerance short trouble impact is improved like this, the anti-short circuit capability of transformer is strengthened greatly, and the transformer operational reliability has obtained significantly improving accordingly.
Description of drawings
Fig. 1 is the elementary diagram of the utility model solar power generation with high-impedance transformer.
Among the figure: 1, transformer, 2, current limiting reactor, 3, the transformer low voltage winding.
Embodiment
As shown in Figure 1, solar power generation of the present utility model comprises transformer 1 and current limiting reactor 2 with high-impedance transformer, adopt the form of built-in current limiting reactor, current limiting reactor 2 is installed in the inside of transformer 1, and current limiting reactor 2 is connected with transformer low voltage winding 3.Because the linearity of air core reactor reactance is better than iron-core reactor, so current limiting reactor 2 adopts air core reactor.The utility model has reduced the impact of the transformer low voltage winding 3 that short circuit current pair and current limiting reactor 2 be in series to greatest extent, the ability that transformer low voltage winding 3 tolerance short troubles impact is improved, strengthen the anti-short circuit capability of whole transformer, improved the operational reliability of transformer.
Claims (1)
1. a solar power generation high-impedance transformer comprises transformer and current limiting reactor, it is characterized in that: current limiting reactor is installed in transformer inside, and the low pressure windings in series of current limiting reactor and transformer, and current limiting reactor is an iron-core reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201590145U CN201663041U (en) | 2010-04-15 | 2010-04-15 | High-impedance transformer for solar power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201590145U CN201663041U (en) | 2010-04-15 | 2010-04-15 | High-impedance transformer for solar power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201663041U true CN201663041U (en) | 2010-12-01 |
Family
ID=43233460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201590145U Expired - Fee Related CN201663041U (en) | 2010-04-15 | 2010-04-15 | High-impedance transformer for solar power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201663041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543406A (en) * | 2011-01-04 | 2012-07-04 | 特变电工衡阳变压器有限公司 | High-impedance combined-type transformer |
| CN112038062A (en) * | 2020-07-15 | 2020-12-04 | 国网宁夏电力有限公司 | Transformer current limiting device and current limiting method thereof |
-
2010
- 2010-04-15 CN CN2010201590145U patent/CN201663041U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543406A (en) * | 2011-01-04 | 2012-07-04 | 特变电工衡阳变压器有限公司 | High-impedance combined-type transformer |
| CN102543406B (en) * | 2011-01-04 | 2015-07-22 | 特变电工衡阳变压器有限公司 | High-impedance combined-type transformer |
| CN112038062A (en) * | 2020-07-15 | 2020-12-04 | 国网宁夏电力有限公司 | Transformer current limiting device and current limiting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20120415 |