A master thesis from Aalborg University
High Efficiency Residential Photovoltaic system
[Høj virkningsgrad solcelleanlæg til boliger]
Author(s)
Term
4. term
Education
Publication year
2012
Submitted on
2012-02-01
Pages
56 pages
Abstract
En ny højvirkningsgrad topologi er foreslået i denne rapport, som kan anvende med lav spænding elektronisk kontakter og håndtere tovejs effekt flow i 700 Vs applikationer. En metodologi er etableret til at fortage analytisk beregninger af effekttab. En termisk model er blev fremstillet i Plecs til at forudsige tab. Resultatet er, at simulering bekræfter de analytisk beregninger, hvor værst tænkelig virkningsgrad er 97% ved 3 kW i boost tilstand og 98:3% i buck tilstand. Omformer er blev designet og bygget. P°a grund af tidsbegræsning, verifikation af højvirkningsgrad er udskudt til efter rapport aflevering.
In this report a novel high efficiency topology has been proposed, which is using low voltage switches and manage bidirectional power flow in 700V applications. A methodology has been established to perform analytic calculations of power losses. A thermal model in Plecs has been created to predict the losses. As the result, the simulation confirms the analytical calculations, the worst case efficiency is 97% at 3 kW in boost mode and 98:3% in buck mode. The converter has been designed and built. Due to time constraint the verification of high efficiency is postponed to after the report submit.
Keywords
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