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Special three-phase three-pole amorphous alloy transformer for solar power generation

An amorphous alloy, three-phase three-column technology, applied in transformers, fixed transformers, transformer/inductor cores, etc., to achieve the effects of reducing power generation loss, ultra-low no-load loss, and improving power generation efficiency

Inactive Publication Date: 2013-02-27
JIANGSU HONGAN TRANSFORMER
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Problems solved by technology

Solar power generation has obvious seasonality, so the annual load rate of solar power transformers is only about 30%-50%, which requires that the no-load loss of transformers should be as low as possible. At present, the transformers used in solar power generation are 10KV distribution transformers. Mainly, there are still many deficiencies in reducing no-load loss and improving power generation efficiency

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  • Special three-phase three-pole amorphous alloy transformer for solar power generation
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Embodiment Construction

[0012] The present invention is further described below: the transformer uses amorphous alloy as the core to make an amorphous alloy iron core distribution transformer, which can reduce the no-load loss of the transformer to about 25% of SCB11 type, and its efficiency can reach more than 98%. The iron core adopts a three-phase three-column structure, which can not only be used for connection group Dyn11, but also meet the wiring requirements of Yyn0, and has a wide range of applications. The internal winding adopts a three-phase split winding structure, with one high-voltage winding and two low-voltage windings, and the sum of their capacities is equal to the total capacity of the transformer. After the low-voltage winding is split, the distance between the high-voltage coil and each low-voltage coil will be greatly increased, as well as the short-circuit impedance value between the parts after the low-voltage coil is split. This will limit the short-circuit current of the netw...

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Abstract

The invention discloses a special three-phase three-pole amorphous alloy transformer for solar power generation, belonging to the technical field of design and manufacturing of a transformer. Amorphous alloy is adopted as an iron core to prepare the amorphous alloy distribution transformer. No-load losses of the transformer can be reduced effectively, and the efficiency of solar power generation can be improved. A three-phase three-pole structure is adopted by the iron core, the iron core can be connected with a Dyn11 group, and wiring requirements of Yyn0 can be satisfied. A three-phase split winding structure is adopted by an internal winding and the internal winding comprises a high-voltage winding and two split low-voltage windings, the short-circuit current of a network can be limited effectively, and the investment cost and coverage of construction can be reduced. The transformer can be widely applied in distributed power generation, particularly solar power generation.

Description

technical field [0001] The invention discloses a special transformer for three-phase three-column amorphous alloy solar power generation, which belongs to the technical field of transformer design and manufacture. Background technique [0002] With the progress of modern society and the improvement of people's living standards, the human demand for energy has been increasing in recent years. In today's world energy structure, the energy used by human beings is mainly fossil energy such as coal, natural gas and oil. The large-scale exploitation and use of fossil energy has caused the energy situation to become increasingly tense and triggered the world energy crisis. The use of fossil energy such as coal, oil, and natural gas also produces a large amount of gases such as carbon dioxide and sulfur dioxide. Problems such as the greenhouse effect and acid rain have caused extremely serious air pollution, which has affected the ecological balance of the earth and the living envir...

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Application Information

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IPC IPC(8): H01F30/12H01F27/24H01F27/28
Inventor 李杰
Owner JIANGSU HONGAN TRANSFORMER
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