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Method and device for determining charging station capacity

A determination method and charging station technology, applied in the field of power grid, can solve the problems of large load peak-to-valley difference and instability of charging station, and achieve the effect of reducing the load peak-to-valley difference

Active Publication Date: 2021-07-20
STATE GRID BEIJING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method and device for determining the capacity of a charging station to solve the problem of instability caused by large peak-to-valley load differences in charging stations

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  • Method and device for determining charging station capacity
  • Method and device for determining charging station capacity
  • Method and device for determining charging station capacity

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0030] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a method and a device for determining the capacity of a charging station. The method includes: collecting the electric energy load data of the charging station; expressing the time series signal of the electric energy load data as a superposition signal of a limited frequency domain component through Fourier transform; converting the superposition signal of the limited frequency domain component into a Time-domain signal; configure the energy storage capacity of the charging station according to the time-domain signal. Through the invention, the effect of reducing the load peak-valley difference of the charging station is achieved.

Description

technical field [0001] The invention relates to the field of power grids, in particular to a method and device for determining the capacity of a charging station. Background technique [0002] The power and current of the DC charger are very large, and the direct connection to the grid will have a large impact on the grid. The large load fluctuation of the charging station will cause a voltage offset to the grid, which seriously affects the safe operation of the power distribution system. The charging station contains multiple chargers and charging piles. The impact on the power grid is related to the size of the power distribution capacity of each charging station. The larger the power distribution capacity, the higher the power to be supplemented, the greater the battery charging power, and the unit time. The impact of the grid is greater. How to build a charging station that can greatly improve equipment utilization, reduce the impact on the power grid, and reduce invest...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32
CPCH02J3/32
Inventor 陈平曾爽金渊关宇陈熙李香龙陈艳霞刘秀兰迟源
Owner STATE GRID BEIJING ELECTRIC POWER