Electric automobile charging station
A technology for electric vehicles and charging stations, which is applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of re-laying, large amount of reconstruction projects, and high investment costs, and achieve simple transformation, low investment costs, and improved energy The effect of conversion efficiency
Pending Publication Date: 2018-07-24
QINGDAO TELD NEW ENERGY TECH CO LTD
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- Application Information
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Problems solved by technology
However, the power electronic equipment and cable paths in the electric vehicle charging station are relatively fixed. If it is to be transformed, the original power electronic equipment will be replaced and eliminated, and the cable path will be re-laid.
Method used
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] see figure 2 , the embodiment of the present invention discloses an electric vehicle charging station, comprising:
[0027] AC bus L1;
[0028] N unidirectional AC / DC converters 30 connected to the AC bus L1, N≥2, figure 2 Just to have 5 unidirectional AC / DC converters 30 as an example;
[0029] At least one power distribution device 100, each power distribution device 100 includes N+3 switching devices, wherein: 3 switching devices are connected e...
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The invention discloses an electric automobile charging station. The electric automobile charging station comprises N unidirectional AC / DC converters, at least one power distribution device, an energystorage device, a voltage sampling circuit and a control unit, wherein the N unidirectional AC / DC converters are connected to an AC bus; N is greater than or equal to 2; the power distribution devicecomprises N plus 3 switches; the 3 switches are sequentially connected end to end to form a triangular connector; one ends of the rest N switches are connected with a first terminal of the triangularconnector, and the other ends of the rest N switches are connected to DC sides of the N unidirectional AC / DC converters in a one-to-one way; a second terminal of the triangular connector is connectedto an electric automobile; third terminals of the triangular connectors in all the power distribution device are connected as a point; the energy storage device comprises an energy storage battery and a bidirectional DC / DC converter connected with the energy storage battery and the third terminals; the voltage sampling circuit is used for sampling voltage data on the two sides of each switch; thecontrol unit is connected with the voltage sampling circuit and the control end of each switch. Through simple transformation of the existing electric automobile charging station, the energy conversion efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of electric vehicle charging, and more specifically, relates to an electric vehicle charging station. Background technique [0002] An electric vehicle charging station is a station for charging electric vehicles. With the popularity of electric vehicles, electric vehicle charging stations will become the focus of the development of the automobile industry and energy industry. [0003] The existing electric vehicle charging station is an AC microgrid that uses energy storage devices combined with grid power to charge electric vehicles. Such as figure 1 As shown, the electric vehicle charging station specifically includes an AC bus L1, at least one power distribution device 10, and an energy storage device 20 connected to the AC bus L1 and a plurality of unidirectional AC / DC converters 30, wherein: the energy storage device 20 includes an energy storage battery and a bidirectional AC / DC converter 202 conne...
Claims
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IPC IPC(8): B60L11/18H02J3/32
CPCH02J3/32B60L50/53B60L53/60B60L2210/10Y02T10/72Y02T10/7072Y02T10/70Y02T90/12
Inventor 于德翔周强周君卫建荣何照安孙运杰胡水东黄艳璐
Owner QINGDAO TELD NEW ENERGY TECH CO LTD