Modified staircase modulation with low input current distortion for multicell converters

Marcelo Pérez, Samir Kouro, José Rodríguez, Bin Wu

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferencia

20 Citas (Scopus)

Resumen

Cascaded H Bridge Multilevel Inverters are traditionally controlled using Phase Shifted PWM. This method allows an even power distribution among the different cells of the converter, which enables input current harmonic cancelations due to the isolation multipulse transformer and rectifier system. For high power applications a selective harmonic elimination based method, also known as staircase modulation, has been proposed. This method is devised to reduce switching losses to a minimum, improving the efficiency of the converter. The switching angles are calculated to eliminate low order harmonics at the output voltage. However, this method does not provide even power distribution among the cells, avoiding the input current harmonic cancelation. This work proposes a redistribution of the switching angles between the cells, maintaining the overall switching pattern of the staircase modulation. The methods maintains the harmonic elimination characteristic at the output voltage, while improving the power distribution and consequently the input current harmonic performance. Mathematical analysis and simulation results are presented to support the strategy.

Idioma originalInglés
Título de la publicación alojadaPESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Proceedings
Páginas1989-1994
Número de páginas6
DOI
EstadoPublicada - 2008
EventoPESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Rhodes, Grecia
Duración: 15 jun 200819 jun 2008

Otros

OtrosPESC '08 - 39th IEEE Annual Power Electronics Specialists Conference
PaísGrecia
CiudadRhodes
Período15/06/0819/06/08

Áreas temáticas de ASJC Scopus

  • Modelización y simulación
  • Física de la materia condensada
  • Ingeniería energética y tecnologías de la energía
  • Ingeniería eléctrica y electrónica

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    Pérez, M., Kouro, S., Rodríguez, J., & Wu, B. (2008). Modified staircase modulation with low input current distortion for multicell converters. En PESC '08 - 39th IEEE Annual Power Electronics Specialists Conference - Proceedings (pp. 1989-1994). [4592235] https://doi.org/10.1109/PESC.2008.4592235