AUTHOR=Zhang Wenping , Wang Yiming , Xu Po , Li Donghui , Liu Baosong 

TITLE=An operating mode control method for photovoltaic (PV) battery hybrid systems

JOURNAL=Frontiers in Energy Research

VOLUME=12

YEAR=2024

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2024.1435310

DOI=10.3389/fenrg.2024.1435310

ISSN=2296-598X

ABSTRACT=<p>Depending on the PV power, load power, and battery status, the system may operate in different modes. The control loop may have to switch between operating modes. In practice, it is difficult to implement control loop switching because the transition and dynamic process are difficult to control. As a result, this paper presents a generalized mode control method that avoids loop switching across modes. First, system structure and topology are introduced. The operating conditions for both grid-connected and off-grid modes are then divided into six sub-cases. Furthermore, the control architecture, control loop, and reference transition for various scenarios are described. Finally, an experimental platform is built, and the results are presented to verify the proposed method.</p>