1. (1) T. Matsuoka, K. Miyajima, A. Kitamura, Y. Kubo, T. Hirano, and K. Okuda:“Smoothing System of Photovoltaic Output Fluctuation Utilizing Electric Double-layer Capacitors (Pert2)”, Proc. of the 12th Annual Conference of Power & Energy Society, IEEJ, No.110 pp.334-335 (1999) (in Japanese)
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