Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

A TRANSFORMER-LESS SINGLE PHASE INVERTER USING A BUCK-BOOST TYPE CHOPPER CIRCUIT FOR PHOTOVOLTAIC POWER SYSTEM

  • Kasa, Nobuyki (Department of Electronic Engineering, Faculty of Engineering Lkayama University of Science) ;
  • Iida, Takahiko (Department of Electronic Engineering, Faculty of Engineering Lkayama University of Science)
  • Published : 1998.10.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents a newly developed transformer-less single phase inverter for a photovoltaic (PV) power system. In the proposed system, there is no earth-leakage current at all in the theoretical base, and the main circuit of this system is rather simple and it is expected the higher efficiency will be realized. The system is operated by a digital signal processor (DSP) which makes it more flexible in the control. From the experimental results, it is found that this new inverter supplies the AC power to utility grid line with the power factor of nearly unity.

Keywords