Real-Time Fault Detection to Ensure the Safe Operation of the Single-Phase Five-Level VIENNA Rectifier

This work aims to explore and evaluate the nonreversible AC/DC five-level structure from point of view its operational safety: high electrical security on internal destruction continuity in operation. It only has low-voltage monotransistor cells (Si SiC 600 V max) is intrinsically tolerant imperfection control parasites, therefore naturally secure. The design lab-test fault monitoring diagnosis with just one voltage sensor a single-phase VIENNA rectifier were proposed. real-time diagnostic method allows for safe stop or corrective strategy based reconfiguration modulation. reconstruction optimization current signals as well power factor. A continuous post-fault operation can be achieved critical applications. An experimental prototype 3 kW/230 VAC/800 VDC/32 kHz was created validate proposed method.