An Evaluation Method for Suppression of Fluctuations in Renewable Energy Output and its Application to Hydrogen Production System

Abstract

In recent years introduction of renewable energy (RE), such as photovoltaic (PV) power generation and wind power generation, has rapidly increased. Since output of the RE is affected by weather conditions, it will be difficult to keep supply and demand balance of power. So we focus on hydrogen-related technologies. And we have installed the Hydrogen production system. In this system there are two devices to suppress the fluctuation of PV output, electrolysis cell and battery. To evaluate contribution rate of those two devices, we propose a new method using phase of Fourier transform.