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Photovoltaic charging system and charging control method therefor

A charging system and photovoltaic cell technology, applied in the field of solar power generation, can solve problems such as low conversion efficiency, and achieve the effect of high energy conversion efficiency

Active Publication Date: 2016-09-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the existing research is still mainly based on multi-level power electronic conversion, and the conversion efficiency is low.

Method used

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  • Photovoltaic charging system and charging control method therefor
  • Photovoltaic charging system and charging control method therefor
  • Photovoltaic charging system and charging control method therefor

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Embodiment Construction

[0021] In the following description, numerous details are provided in order to provide a thorough understanding of the invention. However, it will be appreciated by those skilled in the art that the following description relates only to preferred embodiments of the invention and that the invention may be practiced without one or more of these details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0022] According to one aspect of the present invention, a photovoltaic charging system is provided. figure 1 A schematic block diagram of a photovoltaic charging system 100 according to an embodiment of the present invention is shown. Such as figure 1 As shown, the photovoltaic charging system 100 includes one or more photovoltaic cell assemblies 110 (using 110 1 、110 2 ... 110 n indicated), one or more high frequency inverters 120 (with 120 1 、120 2 ... 120 n denoted) and the multiport trans...

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Abstract

The embodiments of the invention provide a photovoltaic charging system and a charging control method therefore. The photovoltaic charging system includes: one or a plurality of photovoltaic battery assemblies; one or a plurality of high frequency inverters which is or are in one-by-one corresponding connection to the one or the plurality of photovoltaic battery assemblies, and the one or each of the plurality of high frequency inverters having a first output end and a second output end, and first output ends of all high frequency inverters being connected together and constituting a first end of a high frequency AC bus, and second output ends of all high frequency inverters being connected together and constituting a second end of the high frequency AC bus; and a multi-port converter which includes two ports which are in respective connection to the high frequency AC bus and DC bus and one port which is intended for connection to a battery, the multi-port converter being intended for realizing energy conversion between the high frequency AC bus and DC bus and the battery. The photovoltaic charging system has high efficiency of energy conversion.

Description

technical field [0001] The invention relates to the technical field of solar power generation, and more particularly to a photovoltaic charging system and a charging control method for the photovoltaic charging system. Background technique [0002] Driven by the energy crisis and energy conservation and emission reduction, the vigorous development of electric vehicles has become an effective way to alleviate the energy crisis and environmental pollution. Automobile fuel is the main body of oil consumption. Vehicle exhaust accounts for 10% to 15% of the world's total carbon dioxide emissions. Electric vehicles can reduce carbon dioxide emissions and improve the atmospheric environment. Electric vehicle charging and discharging stations using photovoltaic cells as energy input will also have greater advantages. Promoting the construction of photovoltaic-powered electric vehicle charging and discharging stations not only develops the electric vehicle industry, but also promo...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02J7/04
CPCH02J7/00716H02J7/35Y02E10/56
Inventor 郭志强孙凯
Owner TSINGHUA UNIV