Virtual Voltage Vector Based Predictive Control of High Performance Modified Quasi-Z-Source Inverter with the Aim of Constant Common-Mode Voltage

Majid Akbari, S. Alireza Davari, Reza Ghandehari, Cristian Garsia, Jose Rodriguez

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

Resumen

Removal of the transformer from quasi-Z-source inverters (q-ZSI) in photovoltaic systems creates an oscillating common-mode voltage (CMV) on the parasitic capacitors. Fluctuations in this voltage cause leakage current to flow in the system. Due to the shoot-through (ST) state in q-ZSIs, the CMV fluctuations are also higher than those of the conventional voltage source converters. In this paper, the predictive control method and the concept of virtual voltage vectors (VVVs) and their combination with the odd PWM (OPWM) method are proposed for elimination of the oscillation of the common state voltage in the q-ZSI. In the proposed method, the CMV fluctuations are kept constant for a complete switching period. In addition, the total harmonic distortion (THD) of the output current of the converter decreases, and consequently, the converter's operating range and performance increase. By simulating a two-level q-ZSI, the performance of the proposed method are proved.

Idioma originalInglés
Título de la publicación alojada2021 12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021
EditorialInstitute of Electrical and Electronics Engineers Inc.
ISBN (versión digital)9780738111971
DOI
EstadoPublicada - 2 feb 2021
Evento12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021 - Tabriz, República Islámica de Irán
Duración: 2 feb 20214 feb 2021

Serie de la publicación

Nombre2021 12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021

Conferencia

Conferencia12th Power Electronics, Drive Systems, and Technologies Conference, PEDSTC 2021
País/TerritorioRepública Islámica de Irán
CiudadTabriz
Período2/02/214/02/21

Áreas temáticas de ASJC Scopus

  • Ingeniería mecánica
  • Ingeniería energética y tecnologías de la energía
  • Ingeniería eléctrica y electrónica

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