Dissertação
Desenvolvimento de um inversor fotovoltaico modular de fases reconfiguráveis
Fecha
2021-10-01Autor
Schardong, Charles
Institución
Resumen
This Master’s Thesis presents the development of a modular photovoltaic inverter with reconfigurable
phases. A power module to compose a modular photovoltaic inverter is proposed with
with the aim of creating hardware that can be expanded as needed. The presented module is
responsible for the energy processing of one phase, allowing the connection of up to three modules.
A configuration detection system is also proposed to identify the grid voltage amplitude,
number of connected phases, angular phase shift and phase sequence. These data ensure the
selection of the most adequate control strategy for each situation. The reconfigurable structure
has different control strategies, which are chosen according to the desired network configuration.
In addition, the inverter has an error detection system, which guarantees security for the
hardware and at the same time makes it easier for the installer to identify problems. Simulation
and experimental results are presented demonstrating the operation in different network configurations.