A Generalized Control Approach for Photovoltaic Grid-Tie Microinverters

Ozturk S., Cadirci I.

Int Aegean Conference on Electrical Machines and Power Electronics (ACEMP) / Int Conference on Optimization of Electrical and Electronic Equipment (OPTIM) / Int Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION), Side, Turkey, 2 - 04 September 2015, pp.800-806 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Side
  • Country: Turkey
  • Page Numbers: pp.800-806
  • Hacettepe University Affiliated: Yes


In this paper, the design of a microcontroller-based control scheme for grid-tie photovoltaic (PV) microinverters using Direct Digital Synthesis (DDS) technique has been presented. The proposed contol scheme based on DDS technique has capabilities such as, phase locked-loop generation, maximum power point tracking, anti-islanding and fault ride-through capability, which are essential requirements for a grid connected inverter. These features can satisfactorily be integrated within the software of a low cost microcontroller, thus resulting in a generalized and flexible system. This control scheme, when applied to a microinverter, meets all the required functions of a PV grid-tie microinverter.