Experimental Validation of a Three-Phase Off-Board Electric Vehicle Charger with New Power Grid Voltage Control

Jia Ying Yong, Vigna Kumaran Ramachandaramurthy, Kang Miao Tan, Jeyraj Selvaraj

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The deployment of electric vehicles (EVs) protects the environment by reducing carbon emissions. Since plugged-in EVs require energy from the power grid to charge their batteries, the charger component is inevitable. With the appropriate control, additional functions can be achieved with the existing charger's converter topology. This paper discussed the implementation of a new control strategy in a three-phase off-board EV charger, which provided grid voltage regulation while charging the vehicle. The vehicle charging control (P-control) and grid voltage regulation control (V-control) were implemented in the back-end DC/DC converter and front-end AC/DC converter of the charger, respectively. The proposed P-control utilized the constant current/reduced constant current charging approach to rapidly charge the battery while alleviating battery deterioration. Meanwhile, the proposed V-control had the capability to regulate the grid voltage and DC-link voltage during the EV charging process. Besides the PSCAD/EMTDC simulation, experimental testing was performed on a 2 kVA laboratory EV charger to validate the control performance. While complying with the harmonic standards, the experimental results showed that the charger prototype effectively regulated the grid voltage to the pre-charge voltage while maintaining the DC-link voltage at 150 V during various charging currents of up to 5 A.

Original languageEnglish
Pages (from-to)2703-2713
Number of pages11
JournalIEEE Transactions on Smart Grid
Volume9
Issue number4
DOIs
Publication statusPublished - 01 Jul 2018

Fingerprint

Electric vehicles
Voltage control
Electric potential
DC-DC converters
Deterioration
Topology
Carbon
Testing

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

Cite this

@article{889a85cc25454c0a93af8e623b1f1a39,
title = "Experimental Validation of a Three-Phase Off-Board Electric Vehicle Charger with New Power Grid Voltage Control",
abstract = "The deployment of electric vehicles (EVs) protects the environment by reducing carbon emissions. Since plugged-in EVs require energy from the power grid to charge their batteries, the charger component is inevitable. With the appropriate control, additional functions can be achieved with the existing charger's converter topology. This paper discussed the implementation of a new control strategy in a three-phase off-board EV charger, which provided grid voltage regulation while charging the vehicle. The vehicle charging control (P-control) and grid voltage regulation control (V-control) were implemented in the back-end DC/DC converter and front-end AC/DC converter of the charger, respectively. The proposed P-control utilized the constant current/reduced constant current charging approach to rapidly charge the battery while alleviating battery deterioration. Meanwhile, the proposed V-control had the capability to regulate the grid voltage and DC-link voltage during the EV charging process. Besides the PSCAD/EMTDC simulation, experimental testing was performed on a 2 kVA laboratory EV charger to validate the control performance. While complying with the harmonic standards, the experimental results showed that the charger prototype effectively regulated the grid voltage to the pre-charge voltage while maintaining the DC-link voltage at 150 V during various charging currents of up to 5 A.",
author = "Yong, {Jia Ying} and Ramachandaramurthy, {Vigna Kumaran} and Tan, {Kang Miao} and Jeyraj Selvaraj",
year = "2018",
month = "7",
day = "1",
doi = "10.1109/TSG.2016.2617400",
language = "English",
volume = "9",
pages = "2703--2713",
journal = "IEEE Transactions on Smart Grid",
issn = "1949-3053",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

Experimental Validation of a Three-Phase Off-Board Electric Vehicle Charger with New Power Grid Voltage Control. / Yong, Jia Ying; Ramachandaramurthy, Vigna Kumaran; Tan, Kang Miao; Selvaraj, Jeyraj.

In: IEEE Transactions on Smart Grid, Vol. 9, No. 4, 01.07.2018, p. 2703-2713.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental Validation of a Three-Phase Off-Board Electric Vehicle Charger with New Power Grid Voltage Control

AU - Yong, Jia Ying

AU - Ramachandaramurthy, Vigna Kumaran

AU - Tan, Kang Miao

AU - Selvaraj, Jeyraj

PY - 2018/7/1

Y1 - 2018/7/1

N2 - The deployment of electric vehicles (EVs) protects the environment by reducing carbon emissions. Since plugged-in EVs require energy from the power grid to charge their batteries, the charger component is inevitable. With the appropriate control, additional functions can be achieved with the existing charger's converter topology. This paper discussed the implementation of a new control strategy in a three-phase off-board EV charger, which provided grid voltage regulation while charging the vehicle. The vehicle charging control (P-control) and grid voltage regulation control (V-control) were implemented in the back-end DC/DC converter and front-end AC/DC converter of the charger, respectively. The proposed P-control utilized the constant current/reduced constant current charging approach to rapidly charge the battery while alleviating battery deterioration. Meanwhile, the proposed V-control had the capability to regulate the grid voltage and DC-link voltage during the EV charging process. Besides the PSCAD/EMTDC simulation, experimental testing was performed on a 2 kVA laboratory EV charger to validate the control performance. While complying with the harmonic standards, the experimental results showed that the charger prototype effectively regulated the grid voltage to the pre-charge voltage while maintaining the DC-link voltage at 150 V during various charging currents of up to 5 A.

AB - The deployment of electric vehicles (EVs) protects the environment by reducing carbon emissions. Since plugged-in EVs require energy from the power grid to charge their batteries, the charger component is inevitable. With the appropriate control, additional functions can be achieved with the existing charger's converter topology. This paper discussed the implementation of a new control strategy in a three-phase off-board EV charger, which provided grid voltage regulation while charging the vehicle. The vehicle charging control (P-control) and grid voltage regulation control (V-control) were implemented in the back-end DC/DC converter and front-end AC/DC converter of the charger, respectively. The proposed P-control utilized the constant current/reduced constant current charging approach to rapidly charge the battery while alleviating battery deterioration. Meanwhile, the proposed V-control had the capability to regulate the grid voltage and DC-link voltage during the EV charging process. Besides the PSCAD/EMTDC simulation, experimental testing was performed on a 2 kVA laboratory EV charger to validate the control performance. While complying with the harmonic standards, the experimental results showed that the charger prototype effectively regulated the grid voltage to the pre-charge voltage while maintaining the DC-link voltage at 150 V during various charging currents of up to 5 A.

UR - http://www.scopus.com/inward/record.url?scp=85049007822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049007822&partnerID=8YFLogxK

U2 - 10.1109/TSG.2016.2617400

DO - 10.1109/TSG.2016.2617400

M3 - Article

AN - SCOPUS:85049007822

VL - 9

SP - 2703

EP - 2713

JO - IEEE Transactions on Smart Grid

JF - IEEE Transactions on Smart Grid

SN - 1949-3053

IS - 4

ER -