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Identificação de Falhas de Semicondutores em Circuito-aberto para Conversores Modulares Utilizando a Operação de Cancelamento por Sinal Atrasado Generalizado

2022; Linguagem: Inglês

10.20906/cba2022/3467

2525-8311

Henrique F. de Souza, Alessandro Luiz Batschauer, Felipe Joel Zimann,

Power Systems Fault Detection

This paper presents an open-circuit semiconductor fault detection strategy for modular converters. It is proposed a specific technique for filtering the harmonic signals of the output voltage, with a faster identification capacity than the Fast Fourier Transform (FFT), the most used method until then. The technique proposed uses the Generalized Delayed Signal Cancellation operation (GDSC), a method capable of cancelling groups of harmonics, similar to a bandpass filter, but with a faster response.