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Orientador(es)
Resumo(s)
This paper presents a new fault diagnostic technique applied to switched reluctance motor drives, based on the analysis of the power converter supply current. A fault is detected when the measured amplitude of the dc bus current differs from its expected amplitude, assuming normal operating conditions. The information
about phase currents amplitudes and the control commands of all power switches permit to easily estimate the amplitude of the power converter supply current, since an asymmetric bridge converter is used. Simulation and experimental results are presented. Open- and short-circuit fault occurrences in the converter power switches are considered and analyzed. The proposed technique can early detect these fault occurrences and can also identify the affected motor phase. In almost all situations, the faulty element
is also identified. An early fault diagnosis, with an accurate fault identification, is of a paramount importance since it permits the early adoption of fault-tolerant procedures that minimize the fault impact on the machine operation.
Descrição
Palavras-chave
Fault analysis Fault diagnosis switched reluctance motor (SRM) Variable speed drives
Contexto Educativo
Citação
N. S. Gameiro and A. J. Marques Cardoso, "A New Method for Power Converter Fault Diagnosis in SRM Drives," in IEEE Transactions on Industry Applications, vol. 48, no. 2, pp. 653-662, March-April 2012, doi: 10.1109/TIA.2011.2180876.
Editora
Institute of Electrical and Electronics Engineers (IEEE)
Licença CC
Sem licença CC