Buck-boost single-stage microinverter for building integrated photovoltaic systems

Derick Mathew*, Mohamed Emad Farrag*, Rani Chinnappa Naidu*, Rajesh Kumar Muthu, A. Sivaprakasam, P. Somasundaram

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
93 Downloads (Pure)


Microinverters for Building Integrated Photovoltaic (BIPV) systems must have had a small number of components, be efficient, and be reliable. In this context, a single-phase Buck-Boost Single-stage Microinverter (BBSM) for grid-connected BIPV systems is presented. The concept of topology is extracted from the buck-boost converter. The leakage current in the system is kept under control. It uses an optimal number of active and passive components to function at a high-efficiency level. The suggested topology provides a high level of reliability due to the absence of shoot-through problems. To validate the findings, a simulation in combination with an experimental system for a 70 W system is developed with the design approach. The efficiency of the microinverter, total harmonic distortion of the grid current are measured as 96.4% and 4.09% respectively. Finally, a comparison study has indicated the advantages and disadvantages of the suggested inverter.
Original languageEnglish
Article number7854
Number of pages21
Issue number23
Early online date23 Nov 2021
Publication statusPublished - Dec 2021


  • buck-boost microinverter; building integrated photovoltaic; discontinuous conduction mode
  • building integrated photovoltaic system
  • discontinuous conduction mode

ASJC Scopus subject areas

  • Control and Optimization
  • Energy (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Engineering (miscellaneous)
  • Building and Construction


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