TY - GEN
T1 - Smart charger for electric vehicles with power quality compensator on single-phase three-wire distribution feeders
AU - Tanaka, Toshihiko
AU - Sekiya, Tsukasa
AU - Tanaka, Hidenori
AU - Hiraki, Eiji
AU - Okamoto, Masayuki
PY - 2012/12/17
Y1 - 2012/12/17
N2 - In this paper, we propose a smart charger for electric vehicles (EVs) with a power quality compensator. The proposed smart charger consists of four-leg IGBTs. Three legs are used for a single-phase full-bridge-based PWM rectifier, which converts power from ac to dc during the battery-charging operation, or from dc to ac during the battery-discharging operation. This PWM rectifier can compensate reactive and unbalanced active currents on single-phase three-wire distribution systems because the third leg is connected to the neutral line of single-phase three-wire distribution feeders. The fourth leg is used as a bidirectional dc-dc converter for battery-charging and discharging operations. The three-leg PWM rectifier uses only constant dc-capacitor voltage control, which is commonly used in active power line conditioners. Thus, the authors have developed the simplest possible control method for a single-phase power quality compensator. The basic principle of the proposed smart charger is discussed in detail, and then confirmed by digital computer simulation using PSIM software. A prototype experimental model is constructed and tested. Experimental results demonstrate that balanced source currents are obtained on the secondary side of the pole-mounted distribution transformer for battery-charging and discharging operations.
AB - In this paper, we propose a smart charger for electric vehicles (EVs) with a power quality compensator. The proposed smart charger consists of four-leg IGBTs. Three legs are used for a single-phase full-bridge-based PWM rectifier, which converts power from ac to dc during the battery-charging operation, or from dc to ac during the battery-discharging operation. This PWM rectifier can compensate reactive and unbalanced active currents on single-phase three-wire distribution systems because the third leg is connected to the neutral line of single-phase three-wire distribution feeders. The fourth leg is used as a bidirectional dc-dc converter for battery-charging and discharging operations. The three-leg PWM rectifier uses only constant dc-capacitor voltage control, which is commonly used in active power line conditioners. Thus, the authors have developed the simplest possible control method for a single-phase power quality compensator. The basic principle of the proposed smart charger is discussed in detail, and then confirmed by digital computer simulation using PSIM software. A prototype experimental model is constructed and tested. Experimental results demonstrate that balanced source currents are obtained on the secondary side of the pole-mounted distribution transformer for battery-charging and discharging operations.
KW - bidirectional dc-dc converter
KW - constant dc-capacitor voltage control
KW - single-phase PLL circuit
KW - single-phase d-q transformation
KW - single-phase three-wire distribution system
KW - smart charger
KW - three-leg inverter
UR - http://www.scopus.com/inward/record.url?scp=84870914690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870914690&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2012.6342512
DO - 10.1109/ECCE.2012.6342512
M3 - Conference contribution
AN - SCOPUS:84870914690
SN - 9781467308014
T3 - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
SP - 3075
EP - 3081
BT - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
T2 - 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012
Y2 - 15 September 2012 through 20 September 2012
ER -