International Journal of Engineering Technologies and Management Research, cilt.10, sa.9, ss.52-69, 2023 (Hakemli Dergi)
Evaluating clean energy alternatives in hybrid power systems (HPS) is critical within
sustainable development and zero-carbon policies. Considering the synchronization
issues between energy generation and consumption, determining the optimal operating
performance of battery energy storage systems (BESS) will likely increase support and
interest in HPS investments. In this study, HPSs using shared BESSs for prosumers in a
common bus distribution network are optimally sized with a minimum cost objective in
a multi-year sensitivity analysis. Most importantly, the optimal C-rate and maximum
depth of discharge (DODmax) operation are determined to match the supply-demand
balance and maximize the HPS benefit at lower end-of-life (EOL) limits. The impact of
increases in EOL limits on the technical, economic, and environmental feasibility of HPS
and BESS aging is also evaluated. At the same time, all operations are performed
considering four different sub-degradation models using the Arrhenius strategy and
Rainflow Counting algorithm. The results show that increasing the C-rate reduces CO2 by
up to 19% while increasing BESS equivalent cycles and cycling degradation by 28.26%
and 10%, respectively. HPS performance is maximized based on optimum BESS operating
at 80% DODmax. Based on the obtained results, it is also emphasized that the impact of
BESS operating performance on HPS feasibility and aging analysis will be valuable for
many stakeholders.