Banca de DEFESA: CAMILA MENDES BANDEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CAMILA MENDES BANDEIRA
DATE: 21/02/2024
TIME: 08:00
LOCAL: Sessão por videoconferência
TITLE:

PROJECT AND CONTROL OF A CC-CC CONVERTER APPLYED TO NA ELECTRIC VEHICLE CHARGING STATION.

KEY WORDS:

Electric vehicles; direct current fast charge; phase-shift full-bridge converter; digital control.

PAGES: 93
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

Concerns related to climate change, particularly those arising from greenhouse gas emissions, have driven the search for alternatives in both production and consumption areas, aiming to achieve sustainable development. An explored strategy for reaching this goal and concurrently reducing pollutant emissions is the electrification of vehicles, replacing internal combustion vehicles with hybrid or purely electric vehicles. Despite the recognition of the importance of adopting electric vehicles in transportation systems, some challenges still need further examination, such as the impacts on the electrical grid and the need for a broad and efficient recharging infrastructure. Despite substantial incentives for expanding charging infrastructure, it remains limited compared to that allocated for internal combustion vehicles, as it also involves longer charging times. An alternative to reduce charging time and enhance user experience is the adoption of publicly accessible direct current charging stations. These stations connect directly to the battery terminals, enabling higher power delivery with less compromise to the vehicle's weight and volume. These stations, therefore, need to operate across a wide range to accommodate the various models of electric vehicles available in the market. In this context, this dissertation aims to design a direct current vehicle charger, in compliance with international and national standards, to attend a broad range of vehicles. A literature review of the technical and normative requirements related to direct current charging systems is conducted, along with the design of the phase-shift full-bridge (PSFB) converter to accommodate vehicles with 400V and 800V batteries. The converter modeling is based on the small signal model of the buck converter, incorporating specific operational features of the PSFB. Digital control is developed and implemented in the Matlab/Simulink simulation environment, where performance tests are conducted for the charging stages when connected to various battery models.

COMMITTEE MEMBERS:
Externo à Instituição - CASSIANO RECH - UFSM
Presidente - 2889145 - GUSTAVO MEDEIROS DE SOUZA AZEVEDO
Interno - 1814693 - LEONARDO RODRIGUES LIMONGI