Multiobjective Optimization of the DC-DC Stage of a Module-Integrated Inverter Based on an Efficiency Usage Model

Mirjafari M., Balog R. S., TURAN R.

IEEE JOURNAL OF PHOTOVOLTAICS, vol.4, no.3, pp.906-914, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 4 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1109/jphotov.2014.2304363
  • Journal Name: IEEE JOURNAL OF PHOTOVOLTAICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.906-914
  • Middle East Technical University Affiliated: Yes

Abstract

As photovoltaic (PV) energy continues to gain market penetration due to the lower cost of PV modules, attention is shifting to the balance of system. In this paper, a new efficiency evaluation technique based on a usage model that is synthesized from high-temporal operational data of a PV module is investigated, along with a multiobjective design optimization of the dc-dc stage of a module-integrated inverter. The analysis shows that the technique provides more accurate results than the California Energy Commission weighted efficiency method, particularly when other geographic regions of the world are considered.