報告書番号

M14007

タイトル（和文）

SOFC瞬時負荷応答性の評価

タイトル（英文）

Power response of Solid Oxide Fuel Cell to periodic load variation in the range of 10msec-10sec

概要 （図表や脚注は「報告書全文」に掲載しております）

太陽光発電や風力発電が大量に導入された場合、気象条件により負荷側のみならず発電側でも大きな変動が予想され、火力発電については、その変動対応として益々柔軟な出力調整機能が求められる。燃料電池も燃料制御により出力調整可能な点は火力発電機器と同様であり、燃料制御が追従困難な瞬間的な負荷応答性もある程度有している。本報告では、単セルを用いたSOFC（固体酸化物形燃料電池）の瞬間的な負荷（電流）変動範囲を明らかにした上で、その負荷変動によるSOFC瞬時負荷応答性を明らかにする。

概要 （英文）

In state-of-the-art power grid line, the load fluctuations of being less than 10sec are compensated by spinning reserve of synchronous generator at thermal or hydroelectric power plant; this is due to inertial response or governor-free operation of the synchronous generator. However, it will be difficult to compensate the fluctuations to maintain frequency control of power grid line, when renewable energy sources such as photovoltaic or wind power that are affected by weather condition expand into the grid and occupy an important position as power plant. Therefore, load-variation tests that involve applying periodic current fluctuation for 0.02-60sec to a bench-scale Solid Oxide Fuel Cell (SOFC) have been carried out to explore the possibility of SOFC power system toward dynamic operation for load fluctuations. Fuel cell system is generally able to control its power by amount of fuel fed into the cell and expected to have an instantaneous power response corresponding to the spinning reserve of synchronous generator.

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