Analysis and design of single-phase current-source grid-connected PV inverter

ERTAŞGIN G., Soong W., Ertugrul N.

2013 15th European Conference on Power Electronics and Applications, EPE 2013, Lille, Fransa, 2 - 06 Eylül 2013 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/epe.2013.6634732
  • Basıldığı Şehir: Lille
  • Basıldığı Ülke: Fransa
  • Anahtar Kelimeler: Current-Source Inverter, Efficiency, Energy Storage, Harmonics, Photovoltaic, Single-Phase System
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

This paper investigates the performance of a 150 W single-phase current-source grid-connected inverter for photovoltaic (PV) applications. The constant-current source is realized using a large DC link inductor and the inverter is implemented using a single boost switch, a H-bridge inverter and a CL output filter. Although the DC link inductor causes the inverter to be less efficient than an equivalent voltage-source inverter, it offers lower cost due to the zero-current switching and lower number of components. In addition, the output current is easily controlled using the boost switch and offers simple open-loop and feed-forward control. The paper compares the simulated and measured inverter performance with regards to output power, total harmonic distortion and power factor. Additionally the scaling of the concept to a higher power (1.2 kW) inverter was also investigated using simulations. © 2013 IEEE.