In a significant advancement for residential energy management, a new study proposes an innovative control method for battery energy storage systems (BESS) that could revolutionize voltage regulation in photovoltaic-rich distribution networks. Conducted by Farzaneh Rezaei from the Department of Electrical Engineering at Shahid Bahonar University of Kerman, this research highlights the untapped potential of commercial off-the-shelf photovoltaic systems combined with battery energy storage units (PV-BES) to not only enhance self-consumption but also to stabilize voltage levels in low voltage distribution networks (LVDNs).
Current PV-BES systems are primarily designed to maximize household energy use, often overlooking their capacity to contribute to grid stability. However, Rezaei’s enhanced sensitivity-based combined (ESC) control method introduces a two-tier approach to voltage regulation. “By integrating battery energy storage control as the first level and reactive power compensation as the second, we can effectively manage voltage fluctuations in real-time,” Rezaei explained. This dual strategy allows for a centralized controller to oversee charging and discharging cycles, while local inverters dynamically adjust to immediate power needs and reactive power requirements.
The implications of this research are profound, especially as the energy sector grapples with the challenges posed by an increasing number of distributed energy resources. The ESC method has been tested on both 8-bus and 116-bus low voltage test feeders, demonstrating its superiority over traditional systems. It effectively prevents overvoltage issues, minimizes fluctuations in power direction from the battery storage, and reduces overall voltage deviations. Such capabilities not only enhance the reliability of local electricity networks but also diminish consumers’ dependence on the grid.
Rezaei’s work could pave the way for more resilient and efficient energy systems, particularly in residential areas where solar energy adoption is surging. “This method ensures that we fully utilize the battery storage capacity while maintaining adequate power levels during both charging and discharging intervals,” she noted. As the energy landscape shifts towards greater decentralization and renewable integration, the findings from this study could inspire further innovations in energy management technologies.
As the world moves towards a greener future, the research published in ‘IET Renewable Power Generation’ (translated as ‘IET Renewable Power Generation’) underscores the importance of harnessing existing technologies in novel ways. For more insights into this groundbreaking work, you can visit lead_author_affiliation.
