Design and implementation of a photovoltaic grid-connected micro-inverter with power factor correction technology

Yu Kun Chen, Tsorng-Juu Liang, Wei Chia Wu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

In this paper, a photovoltaic (PV) gird-connected micro-inverter controlled by power factor correction (PFC) controller is implemented. The PFC controller is adopted to control the inverter output current sinusoidally. Besides, the maximum power point tracking control circuit can get the maximum power form PV modules. The duality between the PFC circuit and the inverter circuit is presented first. Then, the PFC design rules is applied in the inverter circuit. However, the flyback inverter controlled by boundary conduction mode (BCM) PFC IC will cause a high third harmonic component from the analysis. Hence, the third harmonic injection method is estimated and analyzed to improve the output current total harmonic distortion. Finally, a 300W grid-connected flyback micro-inverter with BCM control based on L6561 PFC controller is implemented to verify the feasibility. Input voltage is 20V to 40V and the peak power is 300 W from PV simulator, and the output voltage is 220Vac/60Hz. The highest efficiency of the micro-inverter is 92.8%.

Original languageEnglish
Title of host publication9th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication"Green World with Power Electronics", ICPE 2015-ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages294-300
Number of pages7
ISBN (Electronic)9788957082546
DOIs
Publication statusPublished - 2015 Jul 27
Event9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of
Duration: 2015 Jun 12015 Jun 5

Publication series

Name9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

Other

Other9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
CountryKorea, Republic of
CitySeoul
Period15-06-0115-06-05

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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