Stabilization control of flywheel generator systems having multiple synchronous machines

Inoue, Katsuhiko*; Ogasawara, Satoshi*; Matsukawa, Makoto

Denki Gakkai Kenkyukai Shiryo, Handotai Denryoku Henkan, Sangyo Denryoku Denki Oyo Godo Kenkyukai, p.45 - 50, 2002/11

no abstracts in English

Stabilization control in parallel-connected flywheel generators

Inoue, Katsuhiko*; Ogasawara, Satoshi*; Matsukawa, Makoto

Heisei-14-Nen Denki Gakkai Zenkoku Taikai Koen Rombunshu, p.183 - 184, 2002/00

no abstracts in English

None

Todokoro, Akio; Watahiki, Masatoshi; Kihara, Yoshiyuki; Ishii, Yasuhiko*; Ogasawara, Masahiro*; Otaka, Akihiro*

PNC TN8410 96-238, 86 Pages, 1996/08

PNC-TN8410-96-238.pdf:2.3MB

None

Characterization of fuel debris (27'A), 4; Characterization of simulated corium debris bearing Gd

Morimoto, Kyoichi; Hirooka, Shun; Akashi, Masatoshi; Watanabe, Masashi; Komeno, Akira; Ogasawara, Masahiro*

no journal, , 

The influence of Gd on these characteristics is important for the prediction because subassemblies of Gd-bearing uranium oxide fuels were loaded in the some reactor cores of Fukushima Daiichi Nuclear Power Plant. Additionally, it is important to comprehend the placement of Gd in the debris from the view point of the re-criticality by relocation of the debris during removing the debris. In this study, U, Gd and Zr mixed oxide specimens were fabricated by the conventional powder metallurgy process and these specimens were melted and solidified to prepare simulated corium debris bearing Gd (sim-debris). Melting point and thermal conductivities of sim-debris were measured. X-ray diffraction analysis and electron probe microanalysis were conducted to evaluate the phase states.