TY - GEN
T1 - Adopting MOSFET multilevel inverters to improve the partial load efficiency of electric vehicles
AU - Chang, Fengqi
AU - Ilina, Olga
AU - Hegazi, Omar
AU - Voss, Leon
AU - Lienkamp, Markus
N1 - Publisher Copyright:
© assigned jointly to the European Power Electronics and Drives Association & the Institute of Electrical and Electronics Engineers (IEEE)
PY - 2017/11/6
Y1 - 2017/11/6
N2 - The efficiency of the electric powertrain has a direct influence on the cost and range of electric vehicles, which are the two key factors hindering the public acceptance of electric vehicles (EVs). Inverters, as an important component of the electric powertrain, have a high efficiency at full load, but an unsatisfying performance at partial load due to the bipolar characteristics of IGBT. To improve the partial load efficiency, this paper proposes to use multilevel inverters composed of low voltage MOSFETs to replace six-pack IGBT inverters in EVs. The proposal is justified by a detailed analysis based on a BMW i3 vehicle model and an accurate model of semiconductor losses in ANSYS Simplorer. Moreover, a cost comparison proved that the multilevel inverter using common low voltage MOSFETs is the best option among all the solutions considering the current costs of the components.
AB - The efficiency of the electric powertrain has a direct influence on the cost and range of electric vehicles, which are the two key factors hindering the public acceptance of electric vehicles (EVs). Inverters, as an important component of the electric powertrain, have a high efficiency at full load, but an unsatisfying performance at partial load due to the bipolar characteristics of IGBT. To improve the partial load efficiency, this paper proposes to use multilevel inverters composed of low voltage MOSFETs to replace six-pack IGBT inverters in EVs. The proposal is justified by a detailed analysis based on a BMW i3 vehicle model and an accurate model of semiconductor losses in ANSYS Simplorer. Moreover, a cost comparison proved that the multilevel inverter using common low voltage MOSFETs is the best option among all the solutions considering the current costs of the components.
KW - MOSFET
KW - Multilevel Converter
KW - Partial Load Efficiency
UR - http://www.scopus.com/inward/record.url?scp=85042153232&partnerID=8YFLogxK
U2 - 10.23919/EPE17ECCEEurope.2017.8099071
DO - 10.23919/EPE17ECCEEurope.2017.8099071
M3 - Conference contribution
AN - SCOPUS:85042153232
T3 - 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
BT - 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
Y2 - 11 September 2017 through 14 September 2017
ER -