The usage of the power load as a physical diagram for electric vehicle charging modelling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F20%3A43961240" target="_blank" >RIV/49777513:23220/20:43961240 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1149/09901.0429ecst" target="_blank" >https://iopscience.iop.org/article/10.1149/09901.0429ecst</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/09901.0429ecst" target="_blank" >10.1149/09901.0429ecst</a>

Result language

angličtina

Original language name

The usage of the power load as a physical diagram for electric vehicle charging modelling

Original language description

The development of electric vehicles (EVs) brings a lot of new problems from the point of view of the electrical grid. Electric vehicles (EV) charging causes an impact load on the distribution grid, which is often non-symmetrical, and can reach high levels in relevant parts of the grid. This leads to deterioration of the electrical energy parameters, mainly voltage level and its symmetry. The inverters operation in electric vehicle charging stations (EVCSs) generates harmonics, which also leads to deterioration of the voltage quality. In the case of simultaneous charging of a large number of EVs from a poorly designed distribution grid, significant losses inside conductors occur, and the service life of the distribution grid is shortened. In order to find out reverse influences of the EVCSs on the electrical grid when EV charging, it is desirable to simulate these states on a suitable software before installing EVCSs to the grid. This may eliminate problems with the voltage quality during the actual charging. In the paper, the authors deal with the modelling of EVCSs by using an alternative simulation tool when charging them as a power load, which consumes predefined active power with desired level and duration at supply voltage changes in the grid. Such defined load differs from a general load in its behaviour. The authors&apos; created load model is based on the real measured data. The behaviour of the created power load model is verified in the paper on a small distribution grid, where individual power consumers correspond to the standardized daily load diagrams of households and services. The goal of the paper is to verify the proposed power load model. The load model is used for solving active power losses in conductors of the electrical distribution lines, and mainly the levels of supplied voltage.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ECS Transactions : /conference proceedings/

ISBN

978-1-60768-539-5

ISSN

1938-6737

e-ISSN

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Number of pages

12

Pages from-to

429-440

Publisher name

IOP Publishing Ltd

Place of publication

Bristol

Event location

on-line, Brno, Czech Republic

Event date

Sep 6, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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