Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2007-01-18
2010-02-23
Waks, Joseph (Department: 2839)
Prime-mover dynamo plants
Electric control
Fluid-current motors
Reexamination Certificate
active
07667343
ABSTRACT:
A wind turbine-driven hydrogen production system controlling a power converter system such that the wind turbine stays in its operable range for a longer time and thus the hydrogen production system produces hydrogen for a longer time. The wind turbine-driven hydrogen production system varies an amount of electrical current supplied to an electrolytic hydrogen production system according to the rotational speed of the wind turbine to reduce variations in the rotational speed. Furthermore, the pitch angle of the wind turbine varies according to the speed. Thus, variations in the speed of the wind turbine can be reduced. A permanent-magnet generator is used as the electricity generator of the wind turbine to obtain a power supply at start-up. Alternatively, a power storage system used as assistive equipment at start-up is supplementarily added or only a power supply for the controllers is supplied from a system.
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Fujii Kazumi
Futami Motoo
Ichinose Masaya
Ide Kazumasa
Itabashi Takeyuki
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Waks Joseph
LandOfFree
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