Projects per year
Abstract
DC capacitors are widely adopted in grid-connected PhotoVoltaic(PV) systems for power stabilization and control decoupling. They have become one of the critical components in grid-connected PV inverters in terms of cost, reliability and volume. The electrical and thermal stresses of the DC capacitors are varying along with the intermittent solar PV energy (i.e. of weather-dependency) and also the grid conditions (e.g. voltage fault transients). This paper serves to translate real-field mission profiles (i.e. solar irradiance and ambient temperature) into voltage, current, and temperature stresses of the DC capacitors under both normal and abnormal grid conditions. As a consequence, this investigation provides new insights into the sizing and reliability prediction of those capacitors with respect to priorart studies. Two study cases on a single-stage PV inverter and a two-stage PV inverter are demonstrated by simulations and experiments. The results have verified the discussions.
Original language | English |
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Title of host publication | Proceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE) |
Number of pages | 8 |
Publisher | IEEE Press |
Publication date | Sept 2014 |
Pages | 5479-5486 |
ISBN (Print) | 978-1-4799-5776-7 |
DOIs | |
Publication status | Published - Sept 2014 |
Event | 2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, United States Duration: 14 Sept 2014 → 18 Sept 2014 |
Conference
Conference | 2014 IEEE Energy Conversion Congress and Exposition (ECCE) |
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Location | Pittsburgh |
Country/Territory | United States |
City | Pittsburgh |
Period | 14/09/2014 → 18/09/2014 |
Fingerprint
Dive into the research topics of 'Mission Profile Translation to Capacitor Stresses in Grid-Connected Photovoltaic Systems'. Together they form a unique fingerprint.Projects
- 2 Finished
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Reliability of Capacitors in Power Electronic Systems (ReliaCap)
The Danish Council for Independent Research| Technology and Production Sciences
01/01/2013 → 31/12/2014
Project: Research
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research
Activities
- 1 Conference presentations
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2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Huai Wang (Speaker)
14 Sept 2014 → 19 Sept 2014Activity: Talks and presentations › Conference presentations