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Centralized energy storage charging pile

A charging pile, centralized technology, used in charging stations, current collectors, vehicle energy storage, etc., can solve problems such as limited capacity

Pending Publication Date: 2019-12-31
SHENZHEN YINGFEIYUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, electric vehicles get power from the AC grid, but due to the limitation of the AC grid in terms of power supply, especially the limited capacity of a single box transformer, it is impossible to connect charging piles exceeding its capacity
At the same time, there may be some differences in the electricity cost of the AC grid in different time periods, and the charging of electric vehicles is a random electricity consumption, so there are cases where peak electricity charges are used or full power cannot be charged.

Method used

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  • Centralized energy storage charging pile
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Experimental program
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Embodiment approach 1

[0042] like figure 2 As shown, the photovoltaic array A is connected to the energy storage bus through the MPPT maximum power tracking conversion device B,

[0043] The above embodiment is a photovoltaic energy storage charging system, the electric energy can be supplemented by the photovoltaic array, supply power to the energy storage bus through the maximum power tracking, and then supply power to the electric vehicle through the DC bus, and the excess electric energy is stored in the energy storage device. When there is no solar energy or the solar energy is not enough, the alternating current or the energy storage device is used to discharge the electricity to provide the DC bus with electric energy to ensure the electric energy for charging the electric vehicle.

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Abstract

The invention discloses a centralized energy storage charging pile. The charging pile comprises two-way or unidirectional DC / DC conversion device with a high-frequency isolation transformation function and a direct-current bus. A first connecting point of the DC / DC device is connected to one or more energy storage devices through an energy storage bus, and a second connecting point is connected tothe direct-current bus. The charging pile also comprises first and second two-way or unidirectional AC / DC conversion devices with a high-frequency isolation transformation function. Electric energy of the energy storage device can be concentrated in the energy storage bus, and the electric energy of the energy storage device, electric energy of an alternating-current power grid and electric energy of a battery in an electric vehicle are combined, so that the electric energy can freely flow among the energy storage bus, the alternating-current power grid and the battery, and impact of chargingof the electric vehicle on the alternating-current power grid is reduced. Meanwhile, the battery in the vehicle can be effectively utilized and used for energy storage to feed the power grid or charge the energy storage device reversely, the electric energy of the energy storage device can also be used for charging the electric vehicle or feeding the power grid, and an integrated solution is formed.

Description

technical field [0001] The invention relates to the field of charging piles, in particular to a centralized energy storage charging pile. Background technique [0002] Generally, electric vehicles draw power from the AC power grid, but due to the limitation of the power supply of the AC power grid, especially the limited capacity of a single box transformer, it is impossible to connect to a charging pile that exceeds its capacity. At the same time, there may be some differences in the electricity cost of the AC power grid in different time periods, and the charging of electric vehicles is a random electricity consumption, so there are cases where the peak electricity cost is used, or the full power cannot be charged. If the energy storage device stores the electric energy when the electricity bill is low or the grid is idle, and releases the electric energy when the electricity consumption is overloaded when the electricity bill is high or the electricity consumption peaks, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/60B60L53/62B60L53/51B60L55/00H02J3/32H02J3/38
CPCB60L53/51B60L53/60B60L53/62B60L55/00H02J3/32Y02T10/70Y02T10/7072Y02T10/72Y02T90/12
Inventor 王渭渭朱春辉岳兴
Owner SHENZHEN YINGFEIYUAN TECH CO LTD
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