TY - GEN
T1 - High Efficiency and High-Power Quality Modulation Strategy for Single-Stage Electrolytic Capacitor-less On-board EV Charger
AU - Geda, Million Gerado
AU - Le, Tat Thang
AU - Kim, Sunju
AU - Kim, Kihoon
AU - Kieu, Huu Phuc
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2023 The Korean Institute of Power Electronics.
PY - 2023
Y1 - 2023
N2 - This article presents a modulation scheme for achieving high-efficiency and high-power quality based on the secondary duty cycle and the phase shift for a single-stage electrolytic capacitor-less bidirectional onboard charger. Zero voltage switching is achieved for all switches for wide voltage range operation based on an optimized duty cycle which increased the efficiency of the converter. Meanwhile, high power quality is guaranteed by a varying phase shift which is directly generated by a controller. To validate the proposed modulation scheme, experimental results from the 3.7kW onboard charger are provided at 1kW power showing an improvement of 0.4% over the conventional method. Furthermore, the efficiency of the converter is improved by 3% at low battery voltage where zero voltage switching is severe while using the conventional method.
AB - This article presents a modulation scheme for achieving high-efficiency and high-power quality based on the secondary duty cycle and the phase shift for a single-stage electrolytic capacitor-less bidirectional onboard charger. Zero voltage switching is achieved for all switches for wide voltage range operation based on an optimized duty cycle which increased the efficiency of the converter. Meanwhile, high power quality is guaranteed by a varying phase shift which is directly generated by a controller. To validate the proposed modulation scheme, experimental results from the 3.7kW onboard charger are provided at 1kW power showing an improvement of 0.4% over the conventional method. Furthermore, the efficiency of the converter is improved by 3% at low battery voltage where zero voltage switching is severe while using the conventional method.
KW - and high-power quality
KW - high-efficiency
KW - modulation scheme
KW - Onboard charger
KW - zero voltage switching
UR - http://www.scopus.com/inward/record.url?scp=85170652072&partnerID=8YFLogxK
U2 - 10.23919/ICPE2023-ECCEAsia54778.2023.10213846
DO - 10.23919/ICPE2023-ECCEAsia54778.2023.10213846
M3 - Conference contribution
AN - SCOPUS:85170652072
T3 - ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics
SP - 1603
EP - 1608
BT - ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia
Y2 - 22 May 2023 through 25 May 2023
ER -
