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Charging power supply module, charging power supply including same and charging device

A charging power supply and main circuit technology, applied in charging stations, transportation and packaging, electric vehicle charging technology, etc., can solve the problems of increasing the difficulty of charging power supply development, limited output voltage range, performance degradation, etc., and shorten the charging time. , The effect of reducing the design difficulty and improving the power level

Inactive Publication Date: 2019-03-19
NIO ANHUI HLDG CO LTD
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  • Claims
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Problems solved by technology

[0002] At present, the DC fast charging piles used for electric vehicles on the market are mostly equipped with charging power modules with lower power levels. This charging power module adopts a combination of three-level PFC and LLC converter or three-level PFC and phase-shifting full bridge. , the output voltage range of this topology is limited (the ratio of the highest voltage to the lowest voltage generally does not exceed 3), otherwise the design of the DC / DC level magnetic components of the power module will become extremely difficult, and it will also lead to Degraded performance in certain output voltage ranges
In addition, if it is necessary to further increase the power level while keeping the size and weight from increasing too much, it will further increase the difficulty of developing a charging power supply based on this topology

Method used

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  • Charging power supply module, charging power supply including same and charging device
  • Charging power supply module, charging power supply including same and charging device
  • Charging power supply module, charging power supply including same and charging device

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Embodiment Construction

[0031] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in different forms and should not be construed as limited to only the embodiments set forth herein. The above-mentioned embodiments are given to make the disclosure of this document comprehensive and complete, so as to more fully convey the protection scope of the present invention to those skilled in the art.

[0032] In this specification, terms such as "comprising" and "comprising" mean that in addition to the units and steps that are directly and explicitly stated in the specification and claims, the technical solution of the present invention does not exclude Or the situation of other units and steps clearly stated.

[0033] Words such as "first" and "second" do not denote the order of elements in terms of time, space, size, etc. but are merely used to disting...

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Abstract

The invention relates to a charging technology, in particular to a charging power supply module, a charging power supply comprising the charging power supply module and a charging device. According tothe invention, the charging power supply module comprises: an AC / DC conversion unit including at least one main circuit with a three-phase three-level Wiener topological structure; a DC / DC conversionunit including a first interleaved parallel BUCK converter coupled between a DC positive bus and zero bus of the main circuit and a second interleaved parallel BUCK converter coupled between a DC negative bus and zero bus of the main circuit; and a control unit configured to control the duty ratio of the switching elements in the main circuit, and the first and second interleaved parallel BUCK converters.

Description

technical field [0001] The invention relates to charging technology, in particular to a charging power supply module, a charging power supply including the charging power supply module and a charging device. Background technique [0002] At present, the DC fast charging piles used for electric vehicles on the market are mostly equipped with charging power modules with lower power levels. This charging power module adopts a combination of three-level PFC and LLC converter or three-level PFC and phase-shifting full bridge. , the output voltage range of this topology is limited (the ratio of the highest voltage to the lowest voltage generally does not exceed 3), otherwise the design of the DC / DC level magnetic components of the power module will become extremely difficult, and it will also lead to degraded performance over certain output voltage ranges. In addition, if it is necessary to further increase the power level while keeping the size and weight from increasing too muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/60
CPCY02T10/70Y02T10/7072Y02T10/72Y02T90/12
Inventor 甘银华吴广涛
Owner NIO ANHUI HLDG CO LTD
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