再生エネルギー研究センターパンフレット（英語）

5/20

4 （http://www.solar.fukushima.jp） H2 H2 MCH DER-demonstration platform●Distributed energy resources (DER) demonstration platform (figure below)　On this platform, EMS (Energy Management System) shall be developed and demonstrated through PV systems that consists of different technologies from ten companies), large power grid simulator (Smart DER System Research Facilitiy up to 500 kW). In addition, it is a platform enabling hydrogen-producing technologies with renewable energy in anticipation of hydrogen societies, research and development facilities for distributed batteries as represented by electrical vehicles, and EMS evaluation linked with forecast technologies for the solar irradiation and wind velocity (EV demonstration facilities, 20-kW-class PV + water electrolysis demonstration facilities, etc.).※DER: Distributed Energy Resources Main Research Facilities①System integration technology and energy management　The team conducted a performance analysis of individual elemental technologies, including a solar photovoltaic PV power system comprising more than ten types of PV modules and three types of 22 power conditioning systems (PCS), a proton exchange membrane type water-electrolyte system (with a fuel-cell function), and a hydrogen-storage system using metal hydride; based on this, the team conducted a large number of joint researches. In the future, the team will promote the system research, including the demonstration of system integration technologies through the demonstration of power smoothing utilizing simulation technologies, hydrogen manufacturing with fluctuating renew-able energy, and electric vehicles.②Advanced monitoring of renewable energy resources　The team developed a renewable energy power-generation observation system (Fig. 1) to understand the temporal and spatial variability in power generation when PV and wind power generations are introduced with in Fukushima Prefecture on a massive scale through the Fukushima-Prefecture Renewable Energy Next-Generation Technology Development Project (FY2013–FY2014). It allows estimation of the amount of power generation (PV and wind power) in the entire Fukushima Prefecture with a mesh of 2 km and an hour interval and also the forecast of power generation several hours in advance with the same model. In the future, the team will further improve its accuracy to consider the nationwide expansion of this system in Japan.③A system of producing, storing, and utilizing hydrogen with renewable energy　The team developed an operational technique and a water electrolyzer (Fig. 2) to directly connect PV with proton exchange membrane type water electrolyzer to produce hydrogen at the optimal operational point. In the future, the team will be promoting technological development for reducing hydrogen producing costs with renewable energy. The team aims at realizing dissemination of FCV and realization of hydrogen societies by developing related technologies.Activities and AchievementsTest bed for distributed energy resourcesPV array simulator: 500 kWPV array: 500 kWDiesel engine Equipment under testGrid and load simulato r:simulated load 500 kWHydrogen energy carrierGasLiquidWind power generation system: 300 kWUtility gridEnergy flow simulationWater electrolyzerElectric vehiclecharging stationLithium-ion battery: 400 kWhBEMS(Building Energy Management System)Fig.1: Renewable-energy power-generation observation systemFig.2: Water ElectrolyzerSimulation graphPV generation + wind power generationPV generationwind power generationData selection conditionsCase selection[Introduced]Area selectionNakadoriTime period (a week form the selected date)Reflection of conditionsAmount of power generation［MWh］Solar irradiation［Wh/㎡］Solar irradiationWind speed［m/s］Wind speedPV generation + wind power generationElectricity demand［MWh］