Tri-Port Power Management System for Electric Vehicles

Abstract

This thesis is aimed to study on tri-port power management system in electric vehicles The three ports of the system are the track-powered port motor port and battery port The working mode of the power is divided into five modes for the three ports Then the five working modes can be classified as the track supply power to the motor and charge the battery simultaneously the track supply power to the motor the battery supply power to the motor the track charge the battery the track and the battery supply power to the motor at the same time The EV picks up the power from the track too much the remaining power will charge the battery Then the battery can simultaneously supply power to the motor in order to compensate for the lack part if the track can't supply enough power In this study the Tri-port switching circuit is made of MOSFETs and diodes The Tri-port switching circuit combine with the buck converter in the track-powered port and the bidirectional buck/boost converter in the battery-port forming a tri-port power management system Furthermore the mode of the discrimination will be controlled by the DSP Finally the experiment is finished and verified that the system of this study can operate normally for all five power modes

Date of Award	2019
Original language	English
Supervisor	Jia-You Lee (Supervisor)