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Charging pile charging and discharging control method and charging and discharging system

A technology of charge and discharge control and charging pile, which is applied in the field of power electronics technology and energy storage, can solve the problem of low utilization rate of energy storage power supply, and achieve the effect of improving the utilization rate

Active Publication Date: 2020-06-05
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a charging pile charging and discharging control method and a charging and discharging system to solve the problem of low utilization rate of energy storage power supply

Method used

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  • Charging pile charging and discharging control method and charging and discharging system
  • Charging pile charging and discharging control method and charging and discharging system
  • Charging pile charging and discharging control method and charging and discharging system

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Charging pile charging and discharging system embodiment:

[0026] This embodiment provides a charging and discharging system for charging piles, which can realize fast charging of electric vehicles without changing the distribution network. When the electric vehicle has a charging demand, if the energy storage power supply is sufficient, the energy storage power supply will be used to charge the electric vehicle directly. Only when the energy storage power supply is not sufficient, the electric vehicle will be charged by the grid. In the case of electric vehicle charging demand, the utilization rate of energy storage power supply is effectively improved. When the electric vehicle has no charging demand, the electric energy flow be...

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Abstract

The invention relates to a charging pile charging and discharging control method and a charging and discharging system. The method comprises the steps of detecting the charging requirement of an electric vehicle; if the electric vehicle has the charging demand, detecting the electric quantity state of the energy storage power supply; if the electric quantity state of the energy storage power supply is larger than the set electric quantity threshold value, outputting electric energy to the electric automobile by the energy storage power supply to charge the electric automobile; if the electricquantity state of the energy storage power supply is not greater than the set electric quantity threshold, outputting electric energy to the electric vehicle by the power grid to charge the electric vehicle; and if the electric vehicle has no charging demand, correspondingly controlling the electric energy flow direction between the power grid and the energy storage power supply according to whether the power grid is in the peak power period. According to the method, when the electric vehicle has a charging demand, the energy storage power supply is preferentially adopted to charge the electric vehicle, and the power grid is adopted to charge the electric vehicle only under the condition that the electric quantity of the energy storage power supply is insufficient, so that the utilizationrate of the energy storage power supply is effectively improved under the condition of ensuring the charging demand of the electric vehicle.

Description

technical field [0001] The invention relates to a charging and discharging control method and a charging and discharging system of a charging pile, belonging to the fields of power electronics technology and energy storage technology. Background technique [0002] In recent years, with the increasing attention to energy shortage and environmental issues worldwide, the development of electric vehicles has become a hot spot, and the development of my country's electric vehicle industry is in a good situation. The development of electric vehicles is bound to be inseparable from the construction of charging infrastructure. Fast charging is a method to solve the battery life problem of electric vehicles, and it is the direction of vigorous development in the future, but fast charging load will affect the power quality and safe and stable operation of the grid. [0003] In some areas, due to the increasing investment and construction of charging piles, most charging piles have be...

Claims

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Application Information

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IPC IPC(8): B60L53/00B60L53/53B60L53/50B60L53/62
CPCY02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 张亚萍任云英吴冬田振清汪宁宋波景琦李守业张增祥
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC
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