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Bidirectional topology for automotive charging systems

A topology and vehicle charging technology, applied in electric vehicle charging technology, charging stations, electric vehicles, etc., can solve problems such as high cost, complex structure, and low charging efficiency

Active Publication Date: 2019-02-15
协鑫储能科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a bi-directional topology structure with high charging efficiency and simple structure applied to the car charging system for the technical problems of low charging efficiency, complex structure and high cost of the above-mentioned car charging circuit.

Method used

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  • Bidirectional topology for automotive charging systems
  • Bidirectional topology for automotive charging systems
  • Bidirectional topology for automotive charging systems

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

[0035] Unless otherwise defined, all technical and scientific ter...

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Abstract

The invention relates to a bidirectional topological structure applied to an automobile charging system, comprising: a transformer having a primary side and a secondary side opposite to the primary side; a terminal arranged on the primary side of the transformer for connecting to an AC power grid and household loads are electrically connected; the charging terminal is arranged on the secondary side of the transformer for docking with the vehicle battery; the first half-bridge conversion module is connected between the primary side of the transformer and the terminal, and the second The second half-bridge conversion module is connected to the control module between the secondary side of the transformer and the charging terminal, and has a power tube control unit. The above control module can pass through the first power tube, the second power tube, the third power tube, The fourth power tube, the fifth power tube, and the sixth power tube adjust the duty cycle of the corresponding positions, thereby increasing the charging efficiency of the bidirectional topological structure. At the same time, the structure is relatively simple and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a bidirectional topology applied to a car charging system. Background technique [0002] The traditional electric vehicle charging system only uses the on-board battery as an electrical device for the AC grid. With the rise of the smart grid concept, the vehicle battery not only obtains electrical energy from the AC grid, but also transfers energy to the grid. This is the so-called V2G (Vehicle-to-grid) technology. In addition, when the household load is connected to the electric vehicle charger, the vehicle battery can supply power to the household load when the AC power grid is out, which realizes the V2H (Vehicle-to-home) technology. [0003] However, traditional on-board battery chargers and grid-connected converters usually require a two-stage topology, which will reduce the transmission efficiency of the car charging system due to the excessive number of power devices ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/24B60L53/66B60L55/00
CPCB60L53/24B60L53/60B60L55/00Y02T10/70Y02T10/7072Y02T90/12Y02T90/14Y02T90/16
Inventor 王文杰陈德荣冯莹戴飞雄王海潮
Owner 协鑫储能科技(苏州)有限公司
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