4.7 Article

Effect of Fault Ride Through Capability on Electric Vehicle Charging Station Under Critical Voltage Conditions

期刊

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTE.2022.3145864

关键词

Batteries; Power quality; Rectifiers; Voltage control; Electric vehicle charging; Power system stability; Transformers; Distribution grid; electric vehicle (EV) charger; fault ride-through capability (FRTC); power quality; voltage sag

资金

  1. Renewable Energy Laboratory, SASTRA Deemed University
  2. VILLUM FONDEN [25920]

向作者/读者索取更多资源

This article examines the impact of voltage disturbance on EV batteries and charging systems and proposes a fault ride-through capability system to improve voltage quality. Through the use of a three-phase controlled rectifier and a dc-dc converter in the charging system, and the implementation of a dynamic voltage restorer, the EV battery and charging system are protected from critical voltage sag levels. The performance of the proposed EV charging station is evaluated under different voltage sag conditions using the MATLAB/Simulink platform and validated through software-in-the-loop testing.
A high-quality power supply is required for the proper functioning of the electric vehicle (EV) charging system. However, the voltage quality is one of the significant issues in the distribution grid. This article aims to examine the impacts of voltage disturbance on EV batteries and charging systems, and provides a fault ride-through capability (FRTC) to enhance the voltage quality. The charging system is constructed by the three-phase controlled rectifier and the dc-dc converter. The EV battery pack is modeled with lithium-ion batteries. The FRTC system is designed to improve the voltage quality, and it is achieved through the dynamic voltage restorer. It protects the EV batteries and charging system from the critical voltage sag levels. The performance of the proposed EV charging station (EVCS) has been investigated in 30%, 60%, and 90% voltage sag through the MATLAB/Simulink platform. Also, the real-time validation has been carried out by the software-in-the-loop test with the help of the dSPACE (DS1202) real-time system. The EVCS with an FRTC system provides better performance than the conventional EVCS.

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