Interleaved flyback micro-inverter with primary side current control for PV application

Jamrus Ruttanayukol, Yang Du, Weidong Xiao, Mohamed Elmoursi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this paper, the interleaved flyback inverter is proposed since the topology has been widely used for PV grid-tied micro-inverter applications. The micro-inverter configuration allows to control each photovoltaic (PV) module independently and reduce the mismatch loss, which is common in string and utility inverters. Flyback inverter traditionally operates in discontinuous conduction mode (DCM) or boundary conduction mode (BCM) due to its simplicity in controller design. In this study, the controller has been designed for continuous conduction mode (CCM) operation in order to reduce component stress and increase power density. The current control is based on the primary side, which is an indirect regulation for the grid outflow. A small signal model is also developed for the controller synthesis. Simulation verifies the performance of the proposed inverter.

Original languageBritish English
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
ISBN (Print)9781849199179
StatePublished - 2014
Event3rd Renewable Power Generation Conference, RPG 2014 - Naples, Italy
Duration: 24 Sep 201425 Sep 2014

Publication series

NameIET Conference Publications


Conference3rd Renewable Power Generation Conference, RPG 2014


  • Continuous conduction mode (CCM)
  • Flyback inverter
  • Grid connected
  • Photovoltaic (PV) power system
  • Primary current control


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