成果報告書詳細
管理番号20160000000192
タイトル*平成27年度中間年報 水素社会構築技術開発事業 水素エネルギーシステム技術開発 非常用電源機能を有する再生可能エネルギー出力変動補償用電力・水素複合エネルギー貯蔵システムの研究開発
公開日2016/12/20
報告書年度2015 - 2015
委託先名国立大学法人東北大学 株式会社前川製作所 岩谷産業株式会社
プロジェクト番号P14026
部署名新エネルギー部
和文要約
英文要約Title: Project for Development of Construction Technology of Hydrogen Society / Development of Hydrogen Energy System Technology / Research and Development of a Hybrid Energy Storage System Composed of Electric and Hydrogen Energy Storage Systems Having Emergency Power Source Function for Compensating Fluctuating Output Power of Renewable Energy Sources (FY2014-FY2017) FY2015 Annual Report

We are aiming to establish a hybrid energy storage system having high power capacity and high durability composed of electric and hydrogen energy storage systems. This system is used for compensating fluctuating output power of solar and wind power generators and supplying electric power to loads as an emergency power supply system. In this R&D, especially, we have been focusing on the application of this system to a water purification plant. We investigated the following R&D items to establish the suitable linking and control methods for this system: (1) study on the need of water purification plants for this system and the effective control method of each device for using this system in the water purification plants, (2) study on the suitable device for compensating short-term fluctuation output of solar power generator, and (3) study on the constitution method, operation method, and control method of a model system for a verification test in the Moniwa water purification plant. In the issue of (1), we obtained the need of water purification plants for this system. Some of the needs and the effectiveness of this system are as follows:
-Stable securement of fuel for emergency power supply system in an emergency; independent of fuel transportation, electric power can be secured by using this system from the commercial power system and/or the solar power generator in the water purification plant.
-Improvement of reliability in an emergency of a private power generation system; possibility of occurrence of problems such as fuel degradation and clogging of a fuel filter of the private power generation system is very low.
-Changing time of filter sand washing from night time to daytime; without exceeding the upper limit demand value, the filter sand washing can be performed in daytime by using the output power of solar power generator and the stored energy in this system.
The suitable constitution method of a full-scale system for the Moniwa water purification plant was investigated considering the above needs and effectiveness of this system. In the issue of (2), the controllability, responsiveness, durability, energy efficiency, and economic efficiency in lithium-ion battery, double layer capacitor, and SMES were compared to select the suitable device for compensating the short-term fluctuation output of solar power generator in the verification test. Finally, the double layer capacitor was selected from the standpoints of the controllability of SOC and the economic efficiency. In the issue of (3), the suitable constitution method of a model system with 20 kW solar power generator for the verification test was investigated by considering the design result of the full-scale system. Using the model system, the verification test will be performed to achieve the following goals: verification of continuous autonomous operation of three days for an emergency, and establishment of capacity-selection guideline of the constitution device of this system.
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