Presentation Details
| Performance Analysis of a DC-coupled PV-plus-storage Plant with Bifacial PV Modules Yiwei Ma1, Rabin Dhakal1, Daniel Fregosi1, Joe Thompson1, Cameron Riley1, Aminul Huque1, William Hobbs2. 1EPRI, Palo Alto, CA, USA.2Southern Company, Atlanta, GA, USA |
Abstract
This paper presents the performance analysis of an anonymized 1.5 MW utility-scale DC-coupled PV-plus-storage plant with bifacial module test blocks. The system integrates PV capacity with lithium-ion battery through a shared DC bus and bi-directional inverter. Functionalities of maximizing solar generation or maintaining specified state-of-charge in different control modes are presented. Analysis of experimental test blocks shows bifacial modules achieve higher yield than monofacial modules, with high-albedo surfaces providing additional gains. The full paper will include other observations, such as unexpected oscillation behaviors
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.