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Electric vehicle charging/discharging system based on photovoltaic array and energy storage unit

A technology for electric vehicles and photovoltaic arrays, applied in electric vehicle charging technology, electric vehicles, vehicle energy storage, etc., can solve the problem of mismatching charging time periods, reduce the peak-to-valley difference of the power grid, promote development, and improve economic and technical characteristics Effect

Inactive Publication Date: 2016-04-13
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the technical problem to be solved by the present invention is to provide a charging and discharging system for electric vehicles based on photovoltaic arrays and energy storage units, to solve the impact of large-scale access of electric vehicles on the power grid in the prior art, and the time period of photovoltaic power generation Problems that do not match the charging time period of electric vehicles

Method used

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  • Electric vehicle charging/discharging system based on photovoltaic array and energy storage unit
  • Electric vehicle charging/discharging system based on photovoltaic array and energy storage unit
  • Electric vehicle charging/discharging system based on photovoltaic array and energy storage unit

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the spirit of the disclosure of the present invention will be clearly described below with the accompanying drawings and detailed descriptions. Any person skilled in the art will understand the embodiments of the present invention. , when it can be changed and modified by the technology taught in the content of the present invention, it does not depart from the spirit and scope of the content of the present invention.

[0017] The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.

[0018] As used herein, "first", "second", ... etc. do not refer to a particular sequence or order, nor are they used to limit the pre...

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Abstract

The invention provides an electric vehicle charging / discharging system based on a photovoltaic array and an energy storage unit, wherein the electric vehicle charging / discharging system comprises the photovoltaic array which is used for converting light energy to electric energy; an energy management system which is connected with the photovoltaic array and is used for managing operation of the electric vehicle charging / discharging system; the energy storage unit which is connected with the energy management system and is used for storing the electric energy that is converted by the photovoltaic array when the output current of the photovoltaic array is higher than a preset threshold; and a charging / discharging unit which is connected with the energy management system and is used for charging the electric vehicle by the energy management system or discharging to energy management system by the electric vehicle. The electric vehicle charging / discharging system improves utilization rate of clean energy and can perform peak load shifting through the electric vehicle and an energy storage battery, thereby maximally reducing a difference between an electric power consumption peak and an electric power consumption valley of an electric network.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to electric vehicle charging and discharging technology, specifically an electric vehicle charging and discharging system based on a photovoltaic array and an energy storage unit. Background technique [0002] At present, my country's electric vehicle industry is developing very rapidly, and the number of electric vehicles is increasing rapidly. Electric vehicle charging facilities are an important guarantee for the promotion and application of electric vehicles. Therefore, the construction of electric vehicle charging stations has also received more and more attention. However, current electric vehicle charging stations are generally directly connected to the existing power system, and most of the electric energy in the existing power system comes from thermal power generation technology. Therefore, from this perspective, electric vehicles are not really "green" means of transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/35H02J7/02H02J3/00H02J3/32
CPCB60L53/51B60L55/00H02J3/008H02J3/32H02J7/0013H02J7/022H02J7/35Y02E70/30Y02T10/70Y02T10/7072Y02T90/12
Inventor 周国鹏方茂益孙志杰李雪梅王鹏伍
Owner STATE GRID CORP OF CHINA
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