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Energy storage type charging system

A charging system and energy storage technology, applied in current collectors, electric vehicles, electrical components, etc., can solve the problems of high grid capacity configuration requirements, low utilization rate, and large peak power

Inactive Publication Date: 2016-05-11
INVENTRONICS HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an energy storage charging system to solve the problems of low usage rate of existing independent AC-DC chargers but high peak power and high requirements for grid capacity configuration

Method used

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Embodiment Construction

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the following in conjunction with the attached

[0030] The figure describes in detail the specific embodiment of the present invention.

[0031] The invention provides an energy storage charging system to solve the problems of low utilization rate of existing independent AC-DC chargers but high peak power and high requirements for grid capacity configuration.

[0032] Specifically, the charging system is as figure 2 As shown, it includes: AC-DC module 100, one or more DC-DC charging modules 200, control module 300, DC bus 400 and energy storage unit 500 wherein,

[0033] The output end of the AC-DC module 100 is connected to the DC bus 400, and provides electric power for all DC-DC charging modules 200 through the DC bus 400;

[0034] The input ends of the DC-DC charging module 200 are all connected to the DC bus 400, and the output ends t...

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Abstract

The invention provides an energy storage type charging system. According to the energy storage type charging system, concentrated power supply is realized by a DC bus, the power of the DC bus is provided by an AC-DC module, the DC bus is in bridge connection with an energy storage unit, and one or multiple paths of input of a DC-DC charging module are from the DC bus. When the output power of the AC-DC module is not sufficient, the DC-DC charging module is supplied with power by the energy storage unit, so the peak load shifting effect is realized, the total AC-DC conversion power is reduced, a problem of power grid power supply capacity bottleneck generated during development of a new energy automobile charging station is solved, moreover, through concentrated power supply of the DC bus, the DC-DC charging module can satisfy various charging demands of new energy automobiles in different types at quite low cost, and the integrated cost of the charging system is reduced.

Description

technical field [0001] The invention relates to a charging system for a new energy vehicle, in particular to a charging system with a peak-shaving and valley-filling energy storage unit. Background technique [0002] With the development of new energy vehicles, especially the popularization of electric vehicles, the demand for fast charging stations is increasing. People generally expect electric vehicles to have a long mileage and short charging time, which means that the power of fast chargers will become larger and larger, while the load capacity of the power grid is limited, especially in urban centers where the maximum capacity of the power grid is basically fixed. The needs of charging stations greatly increase the power consumption capacity, while the demand for charging stations in densely populated areas is even greater, so the load of the power grid has become a key bottleneck in the construction of charging stations. Traditional charging stations are mostly compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J3/32
CPCH02J7/0013H02J3/32
Inventor 华桂潮
Owner INVENTRONICS HANGZHOU
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