A semiconductor DC transformer

Abstract

The invention provides a semiconductor direct current transformer which comprises a plurality of series connected semiconductor electric light conversion structures which are used for converting input electric energy into luminous energy and a plurality of series connected semiconductor photoelectric conversion structures which are used for converting the luminous energy into output electric energy, wherein a number of the semiconductor photoelectric conversion structures is different from a number of the semiconductor electric light conversion structures so as to realize direct current transformation, and work light of the semiconductor electric light conversion structures is coupled with work light of the semiconductor photoelectric conversion structures. According to the embodiment, the semiconductor direct current transformer has the advantages of high voltage resistant, no electromagnetic radiation, no coil structure, being safe and reliable and the like.

Description

technical field [0001] The invention relates to the field of current and voltage transformation, in particular to a semiconductor DC transformer. Background technique [0002] The vast majority of traditional power systems use the transmission form of alternating current. The main reason is that because of the convenience of alternating current transformation, the electromagnetic field is used as the energy transmission medium, and the coupling between the primary and secondary coils with different turns is achieved by using the principle of electromagnetic induction. Realize voltage transformation, especially from low pressure to high pressure. Compared with AC power, DC power has huge advantages in terms of transmission loss, grid stability, and line cost. However, there has been no simple and efficient boosting technology and devices in DC transformation, especially DC boosting. With the development of the development, solar cells, fuel cells and other power generation t...

AI Technical Summary

Problems solved by technology

[0003] 1. The required device is complex, with many components, large volume and high cost;

[0004] 2. There are different degrees of energy loss in each link, such as power conversion loss, conversion loss, transmission loss, user end and then conversion to DC drive loss, etc., and the overall efficiency of energy transmission is not high;

[0005] 3. In the process of AC high-voltage transmission, it is difficult to completely synchronize the AC phases between different power generation systems, and the stability of the entire power grid is poor

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