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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 problems such as high peak power, high requirements for grid capacity configuration, and low utilization rate

Inactive Publication Date: 2016-05-11
INVENTRONICS HANGZHOU
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  • 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

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] 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.

[0041] Specifically, the charging system is as figure 2 As shown, it includes: AC-DC module 100, one or more DC-DC charging modules 200, energy storage unit 500, DC bus 400, bidirectional DC-DC module 600 and control module 300, wherein,

[0042] 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;

[0043] The input ends of the DC-DC charging module 200 are all connected to the DC bus 400, and the output end...

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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, one or multiple paths of input of a DC-DC charging module are from the DC bus, and the DC bus is in connection with an energy storage unit through a bidirectional DC-DC module. When the output power of the AC-DC module is not sufficient, the energy is transmitted by the bidirectional DC-DC module from the energy storage unit to the DC bus for supplying the energy for the DC-DC charging module, so the peak load shifting effect is realized, 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, moreover, the voltage of the DC bus is made by the bidirectional DC-DC module to be independent from the voltage of the energy storage unit, so optimization design of the AC-DC module and the DC-DC charging module is facilitated, and efficiency of the charging system is integrally improved.

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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IPC IPC(8): H02J7/00H02J3/32
CPCH02J7/0013H02J3/32
Inventor 华桂潮
Owner INVENTRONICS HANGZHOU
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