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High-power high-transformation-ratio high-voltage direct-current converter for space and photovoltaic power generation system

A high-voltage DC-DC conversion technology, applied in photovoltaic power generation, conversion of DC power input to DC power output, parallel operation of DC power supplies, etc., to achieve the effect of meeting transmission requirements and easy power expansion and reduction

Inactive Publication Date: 2020-05-29
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above-mentioned defects, the present invention is proposed to provide a space-use high-power high-transformer solution that solves or at least partially solves the problem of how to transmit the ultra-high-power electric energy output by the space solar power station to the high-voltage DC bus and ensure the stable operation of the high-voltage DC bus. Compared with high voltage DC converter and photovoltaic power generation system

Method used

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  • High-power high-transformation-ratio high-voltage direct-current converter for space and photovoltaic power generation system
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  • High-power high-transformation-ratio high-voltage direct-current converter for space and photovoltaic power generation system

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Embodiment Construction

[0043] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0044] In the description of the present invention, a "module" may include hardware, software or a combination of both. A module may include hardware circuits, various suitable sensors, communication ports, memory, and may also include software parts, such as program codes, or a combination of software and hardware. The term "A and / or B" means all possible combinations of A and B, such as only A, only B or A and B. The term "at least one of A or B" or "at least one of A and B" has a similar meaning to "A and / or B" and may include only A, only B or both A and B. The terms "a" and "the" in the singular may also include plural forms. The terms "fir...

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Abstract

The invention relates to the technical field of direct-current converters, particularly provides a high-power high-transformation-ratio high-voltage direct-current converter for a space and a photovoltaic power generation system, and aims to solve a problem of how to transmit super-power electric energy output by a space solar power station to a high-voltage direct-current bus and ensure stable operation of the direct-current bus. The high-voltage direct-current converter comprises a plurality of direct-current conversion modules, and each direct-current conversion module comprises one or moredirect-current conversion sub-modules which are connected in parallel. A direct-current input side of each direct-current conversion module forms a plurality of direct-current input side ports of theconverter, and direct-current output sides of the direct-current conversion modules are sequentially connected through redundant switches to form direct-current output side ports of the converter sothat output voltages of the direct-current conversion modules is boosted in series, and transmission requirements of microwave transmitters connected later are met. When each direct-current conversionmodule breaks down, the corresponding redundant switch can be switched on to bypass the direct-current conversion module so that normal transmission of each microwave transmitter is not affected, andnormal operation of the system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of DC converters, in particular to a space-use high-power, high-transformation-ratio, high-voltage DC converter and a photovoltaic power generation system. Background technique [0002] Space solar power station (Solar Power from Space) mainly uses the principle of photoelectric conversion to convert solar energy in space into electrical energy and transmit the electrical energy to the earth in the form of microwaves. For example: the electrical energy is collected to the high-voltage DC bus through DC, and then transmitted to the microwave transmitter, and the microwave transmitter is used to transmit the electrical energy to related equipment on the earth to receive the electrical energy. The structure of high-voltage DC converters in space solar power stations will directly affect the reliability of power transmission, and then affect the normal transmission of microwave transmitters. Moreover, in order ...

Claims

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Application Information

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IPC IPC(8): H02M3/00H02M3/335H02J1/12
CPCH02J1/12H02M3/00H02M3/33569Y02E10/56
Inventor 霍群海王文勇吴理心尹靖元韦统振
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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