Assessment of Thermal Cycling in a Rectifier For Wave Power Generation
Assessment of Thermal Cycling in a Rectifier For Wave Power Generation
- Author(s): A. Baudoin ; C. Bostrom ; D. Saury
- DOI: 10.1049/cp.2016.0536
For access to this article, please select a purchase option:
Buy conference paper PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
5th IET International Conference on Renewable Power Generation (RPG 2016) — Recommend this title to your library
Thank you
Your recommendation has been sent to your librarian.
- Author(s): A. Baudoin ; C. Bostrom ; D. Saury Source: 5th IET International Conference on Renewable Power Generation (RPG 2016), 2016 page ()
- Conference: 5th IET International Conference on Renewable Power Generation (RPG 2016)
- DOI: 10.1049/cp.2016.0536
- ISBN: 978-1-78561-300-5
- Location: London, UK
- Conference date: 21-23 Sept. 2016
- Format: PDF
Offshore electric systems for ocean energies need to be highly reliable in order to avoid prohibitive maintenance and reparation operations. Power electronics is often used to handle the output power from the devices. The first step of the conversion consists usually in rectifying the power into direct current, allowing for connection to a DC-bus. The diode bridges are subjected to severe power fluctuations. The resulting temperature cycles are damageable for the semiconductor modules, and might shorten their lifetime. Submerged devices can take advantage of the surrounding water to be passively cooled. Wave energy converters, equipped with diode rectifiers, have been deployed and tested by Uppsala University on the west coast of Sweden. Experimental current and voltage data along with a circuit thermal model have been used to evaluate the junction temperature. This thermal model was also validated with a laboratory set-up. Results are presented for the junction temperature model and for the validating set-up. This estimation of the magnitude of the temperature cycles will lead to a better understanding of the phenomena limiting the use of power electronics components in these specific operational conditions.
Inspec keywords: power semiconductor diodes; offshore installations; rectifiers; wave power generation
Subjects: Wave power; Tidal and flow energy; AC-DC power convertors (rectifiers)
Related content
content/conferences/10.1049/cp.2016.0536
pub_keyword,iet_inspecKeyword,pub_concept
6
6