A Study on the Optimal Capacity Configuration of Hybrid Energy Storage with Integrated Hydro-Photovoltaic Power Systems in Beipanjiang River Basin

Based on the related characteristics of hydro, solar and wind multi-energy power generation in Beipanjiang River basin, this paper has investigated the optimal configuration of diverse energy storage modes. The basic idea is to use pumped hydro-storage system to adjust the regulation of hydro-power stations while hybrid energy storage combining electric-chemical and hydrogen storage to optimize the configuration of photovoltaic power stations over the region of Beipanjiang River Basin. Under the objective minimizing the cost with the constraints of energy storage system capacity and the maximum value of the charge/discharge power, the economic benefits of different types of energy storage device have been analyzes before the optimal hybrid energy storage configuration bing resolved. The optimal configuration scheme of the energy storage capacity for multi power generation systems are discussed with the practical data which may provide a valuable solution for this region in real practice.