AAU Student Projects - visit Aalborg University's student projects portal
A master's thesis from Aalborg University
Book cover


High Efficiency Residential Photovoltaic system

Translated title

Høj virkningsgrad solcelleanlæg til boliger

Author

Term

4. term

Publication year

2012

Submitted on

Pages

56

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.