Optimization tool for dc-link capacitor bank design in PV inverters

Joao Manoel Lenz, Dao Zhou, Huai Wang, Jose Renes Pinheiro

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

1 Citation (Scopus)

Abstract

The development of a tool is presented for optimizing dc-link capacitors design in PV inverters. Reliability of power converters is well known to be one of the bottlenecks for decreasing the cost of renewable energy systems. Thus, this paper proposes an analysis and design method for estimating the lifetime performance of multiple capacitor bank designs. A case study is performed in a single-stage single-phase PV inverter. A realistic mission profile is used and built with real weather data and combined with a PV model in order to obtain the relevant values of power processing throughout a 1-year operation. A capacitor electro-thermal modeling is done in order to evaluate their operating conditions in time. Results show that the proposed tool is able to provide crucial information to the designer, such as the compromise between lifetime, cost, and volume.

Original languageEnglish
Title of host publication10th International Conference on Power Electronics – ECCE Asia (ICPE 2019-ECCE Asia)
Number of pages7
PublisherIEEE
Publication dateMay 2019
Pages2749-2755
Article number8797325
ISBN (Electronic)9788957083130
Publication statusPublished - May 2019
Event2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Conference

Conference2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Country/TerritoryKorea, Republic of
CityBusan
Period27/05/201930/05/2019
SeriesInternational Conference on Power Electronics
ISSN2150-6078

Keywords

  • Dc-link capacitors
  • Design tool
  • Optimization
  • PV inverter

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