Efficient Power Management Converter for EVs

Abstract

Recently, the popularity of electric vehicles (EVs) has risen worldwide. Being environmentally friendly and highly efficient, electric vehicles are often included in any discussion regarding sustainability. Moreover, the rapid development in electric vehicle technologies is a clear indicator of the bright prospects of this transportation mean. The EV drivetrain is the set of components that deliver power needed to drive the EV, including the battery pack, electric motor, dc-dc converters and inverters. DC-DC converters play a vital role in the operation of an electric vehicle drivetrain and are widely used in various applications. The voltage produced by the battery pack is insufficient to supply the traction part of the EV. Hence, high gain bidirectional DC-DC converters are required to boost the voltage to the desired DC bus voltage. In the forward direction, the voltage from the battery pack is boosted to drive the motor via the inverter. During regenerative braking, the voltage from the motor is stepped down to recharge the battery through the converter. In this thesis, a bidirectional high gain converter for EV applications will be presented and analyzed. In the literature review section, the isolated and non-isolated basic converter topologies will be discussed along with an overview on the EV industry and high gain converters. The following section presents the bidirectional converter topology along with the closed loop control. The fourth section deals with the experimental setup. The concluding remarks and future work are mentioned in the fifth section.

Date of Award	Apr 2023
Original language	American English
Supervisor	KHALED AL JAAFARI (Supervisor)