Dissertação
Conversor DAB ressonante como opção para carregadores on-board de veículos elétricos
Fecha
2022-02-23Autor
Staats, Arthur de Jesus
Institución
Resumen
The environmental need in the use of renewable energy sources, just as the reduction
in greenhouse gas emissions put electric vehicles as the great solution in the
transportation market for the coming years. Parallel to the advent of these vehicles arises
the need for a better use of energy in the converters used. Therefore, this work proposes
the development of an isolated converter for the application in more efficient, smaller and
lighter chargers. The proposed topology presents high efficiency when switching at the
resonance point and excludes the need for a control system when operating at constant
voltage gain. The converter design methodology for a 3300 W application is presented.
A technique is proposed to track the resonance and ensure operation with maximum efficiency
of the topology. Computer simulations and prototype tests are performed in order
to prove the effectiveness of design and proposed technique. The results obtained were
satisfactory, reaching efficiency above 98 % for operation at nominal load. In addition,
the consumption of computational resources required to perform the real-time tracking is
analyzed.