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A Buck-Boost Multilevel Inverter for PV Systems in Smart Cities

  • Anh-Vu HoEmail author
  • Tae-Won Chun
Conference paper
  • 580 Downloads
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 221)

Abstract

This paper proposes a new buck-boost multilevel inverter topology, which is named as a hybrid quasi-Z-source network multilevel inverter, for photovoltaic systems in smart cities. This topology employs an impedance source network and a high frequency three-level switching unit connected to the low frequency single phase inverter. In comparison with other quasi-Z-source network multilevel inverter topologies, the proposed topology uses a lower number of circuit components and more reliable operation. In addition, an effective modulation technique based on phase-shifted disposition scheme is introduced to control the shoot-through state for both boost and buck states of the output voltage. The operating principle of the proposed topology is analyzed in detail. Both simulation and experimental results are carried out to validate the performance of the proposed topology.

Keywords

Multilevel inverters Quasi-Z-source inverter Boost control method Pulse width modulation (PWM) 

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  1. 1.School of EngineeringEastern International UniversityThu Dau MotVietnam
  2. 2.School of Electrical and Electronic EngineeringUniversity of UlsanUlsanKorea

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