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Expressway distributed photovoltaic-storage-charging AC-DC hybrid microgrid self-service charging stations

An AC-DC hybrid, AC-DC charging technology, applied in the field of charging stations, can solve the problems of not going far, no electric piles, etc., to achieve the effect of small installation and implementation project, cost saving, and easy construction along the line

Pending Publication Date: 2018-08-14
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a self-service charging station for distributed light-storage-charging AC / DC hybrid micro-grid on highways, so as to solve the problem of "currently new energy vehicles can only be used in cities and suburbs." Can't go far" and "no electricity pile" problems

Method used

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  • Expressway distributed photovoltaic-storage-charging AC-DC hybrid microgrid self-service charging stations
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  • Expressway distributed photovoltaic-storage-charging AC-DC hybrid microgrid self-service charging stations

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Embodiment

[0028] Such as figure 1 As shown, the freeway distributed light-storage-charging AC / DC hybrid micro-grid self-charging stations provided in this embodiment are arranged in a straight line along the road, and the construction site is selected at a place where there are no trees on both sides of the expressway, and the two sides of the road are relatively symmetrical Each place installs a charging station, such as figure 2 As shown, the charging station includes a power generation side and a load side; where the power generation side mainly includes a photovoltaic array 1, a battery pack 2 with a BMS (BATTERY MANAGEMENT SYSTEM, battery management system) and a DC bus. Use the existing expressway network to install photovoltaic array 1 along it, and install photovoltaic array 1 within the ownership range of 3-5 meters on both sides of the expressway every 20 kilometers or less. The photovoltaic array 1 can be taken from the ground Installation or installation of photovoltaic pa...

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Abstract

The invention discloses expressway distributed photovoltaic-storage-charging AC-DC hybrid microgrid self-service charging stations which are arranged on two sides of an expressway respectively. Each station mainly includes a power generating side and a load side; the power generating side includes renewable energy generation systems, energy storage stations and a direct-current bus, the output ends of the renewable energy generation systems are connected to the direct-current bus via DC-DC converters having a maximum power tracking function, and the energy storage stations are connected with the direct-current bus via bidirectional DC-DC converters; the load side includes dual-mode AC-DC charging piles and an alternating current bus, the direct-current bus is connected with the alternatingbus via DC-AC converters; the direct-current buses of the stations on opposing side of the expressway are connected via an energy mutual supply line. A photovoltaic-storage-charging distributed AC-DChybrid microgrid is established herein; relay charging is provided for new energy vehicles running on inter-city roads or on expressways for long range; the application problems that new energy vehicles have low storage battery energy density, dependence on grid construction, 'short driving range' and the like are solved.

Description

technical field [0001] The invention relates to a charging station, in particular to a distributed light-storage-charging AC / DC hybrid micro-grid self-service charging station for expressways. Background technique [0002] The new energy automobile industry is in the ascendant. At present, the number of new energy vehicles in my country is increasing at a rate of 30% per year, and related industries are also gradually growing and developing rapidly. [0003] On the one hand, the development bottleneck of new energy vehicles mainly depends on the high specific energy, long life, high (efficiency charging and discharging) performance, and low-cost industrial solutions of energy storage battery technology; on the other hand, the popularization and application of new energy vehicles The promotion is also subject to the influence of lagging infrastructure construction such as charging piles and new energy vehicle operation and maintenance value-added service cloud platforms. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18H02J7/00
CPCH02J7/0027B60L53/00Y02T10/7072Y02T10/72Y02T10/70Y02T90/14
Inventor 舒杰吴昌宏王浩
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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