Patent
Wave Power Generator
Koji Miyajima,Hideki Kitada +1 more
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TLDR
In this paper, the authors proposed a wave power generator which can convert wave energy to electric energy with high efficiency and supply electric power of a large capacity at low cost and has a simple structure and is low in construction cost.Abstract:
An object is to provide a wave power generator which can convert wave energy to electric energy with high efficiency and supply electric power of a large capacity at low cost and has a simple structure and is low in construction cost. The wave power generator includes a heavy body 3 elastically supported by air springs 4 as elastic members in an enclosing wall 2 on a floating body 1 and an electromagnetic damper as a generating means 7 provided between the heavy body 3 and the floating body 1 . The spring constant of the air springs 4 is adjustable by providing auxiliary tanks in the piston 6 and the floating body 1 so that the undamped natural frequency of the air spring is equal to or close to the frequency of waves within a predetermined frequency ratio ω/ω 0 . Thus, the frequency of the spring system resonates with the frequency of waves, so that the relative movement of the power generating means 7 increases to a maximum and power generation is carried out with maximum efficiency.read more
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References
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Patent
Method of generating electricity and electrical generator
TL;DR: An electric generator for deriving electrical energy from oscillatory motion such as that of buoys, vehicles and animals is described in this article, where the generator has a stator and an armature coupled together by spring means and is effective to generate current when bodily movement of the generator causes, by inertia effects, relative movements of the armature and stator.
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