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Title

Monitoring Single-Phase LV Charging of Electric Vehicles

Authors

[ 1 ] Instytut Elektrotechniki i Elektroniki Przemysłowej, Wydział Automatyki, Robotyki i Elektrotechniki, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.2] Automation, electronics and electrical engineering

Year of publication

2023

Published in

Sensors

Journal year: 2023 | Journal volume: vol. 23 | Journal number: iss. 1

Article type

scientific article

Publication language

english

Keywords
EN
  • charging process
  • electric vehicles
  • power quality monitoring
  • reliability of electrical machines
Abstract

EN The paper presents the results of the monitoring process of the charging of an electric vehicle battery pack. Battery pack charging with a capacity of 58kWh was monitored in a singlephase 230V/50 Hz circuit. The slow charging system used was configured to obtain a current of 10A. During monitoring, the focus was on the recognition of the charging, considering the impact of this process on power quality and, consequently, on the reliability of electrical machines. Research results show that the monitored charges are one-, two-, or three-stage processes. The variations in the currents, power, and higher harmonic contents were observed. The effects of such variations depend on the properties of the power grid at the point of connection of the charging system. Knowledge of the variation of the voltages, currents, and active and reactive power allows for the determination of the requirements of the measuring equipment used for charging the monitoring, including the selection of discrimination/averaging time of monitored quantities. The research results also indicate the need for continuous monitoring of the power quality in the power supply circuit of electrical loads, e.g., electrical machines. Continuous monitoring supports the diagnostics of electrical machines and allows the appropriate measures to increase their reliability.

Date of online publication

23.12.2022

Pages (from - to)

141-1 - 141-26

DOI

10.3390/s23010141

URL

https://www.mdpi.com/1424-8220/23/1/141

Comments

Article number: 141 This article belongs to the Special Issue Sensor Applications in Fault Diagnosis and Monitoring of Electrical Machines II

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Release date

23.12.2022

Date of Open Access to the publication

at the time of publication

Full text of article

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Access level to full text

public

Ministry points / journal

100.0

Impact Factor

3.847 [List 2021]

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