Voltage transformation circuit with wide voltage output range and DC charging pile

A technology of DC charging pile and output range, which is applied in the field of power transformation and distribution, and can solve problems such as the mismatch between the car and the charging pile

Inactive Publication Date: 2015-12-02
SHENZHEN EN PLUS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problem of mismatch between the car and the charging pile, this application provides a transformer circuit with a wide voltage output range and a DC charging pile

Method used

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  • Voltage transformation circuit with wide voltage output range and DC charging pile
  • Voltage transformation circuit with wide voltage output range and DC charging pile
  • Voltage transformation circuit with wide voltage output range and DC charging pile

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Embodiment Construction

[0023] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

[0024] The present application discloses a DC charging pile, whose output charging voltage range is very large, and can meet the charging voltage requirements of different types of vehicles, which will be described in detail below.

[0025] Please refer to figure 1 , In an embodiment, the DC charging pile includes two-stage converters: a first-stage converter 1 and a second-stage converter 2, and the first-stage converter 1 and the second-stage converter 2 are cascaded.

[0026] The first-stage converter 1 is used to convert the input alternating current into direct current, where the alternating current may be three-phase 220V or 380V alternating current. In a preferred embodiment, please refer to figure 2 , the first-stage converter 1 includes a power factor correction circuit 10, and the power factor correction circuit 10 ...

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PUM

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Abstract

The invention discloses a voltage transformation circuit with a wide voltage output range and a DC charging pile. The voltage transformation circuit comprises multiple DC / DC conversion units and a series and parallel switching unit, wherein the multiple DC / DC conversion units are used for carrying out voltage transformation on inputted DC and outputting the DC; and the series and parallel switching unit is electrically connected with the output end of each DC / DC conversion unit for switching the output ends of the multiple DC / DC conversion units in serial and parallel electrical connection modes to enable the voltage output range of the voltage transformation circuit to be increased. The DC charging pile comprises the voltage transformation circuit with the wide voltage output range. The DC charging pile disclosed by the invention has a large output voltage range and can be compatible with various electric vehicles with different charging voltage.

Description

technical field [0001] The present application relates to the field of power transformation and power distribution, in particular to a transformer circuit with a wide voltage output range and a DC charging pile. Background technique [0002] According to the 2012-2020 energy-saving and new energy vehicle industry development plan, by 2015, the cumulative production and sales of pure electric vehicles and plug-in hybrid vehicles will reach 500,000 units, and by 2020, pure electric vehicles and plug-in The annual production capacity of hybrid electric vehicles will reach 2 million, and the cumulative production and sales will exceed 5 million. At the same time, the construction of charging facilities must keep up with the scale of production and sales of new energy vehicles. According to the "13th 1st" plan, it is estimated that by 2020, the number of centralized charging and swapping stations will increase to 12,000, while the number of decentralized charging piles will incre...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/02
Inventor 戴国峰
Owner SHENZHEN EN PLUS TECH CO LTD
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