Active impedance matching systems and methods for wave...

Details Active impedance matching systems and methods for wave... Active impedance matching systems and methods for wave...

2007-12-11

2007-12-11

Nguyen, Hoang (Department: 3748)

Power plants

Motor having a buoyant working member

C060S496000, C290S042000, C290S053000

Reexamination Certificate

active

11035323

ABSTRACT:
The invention relates to active impedance matching systems (AIMS) and methods for increasing the efficiency of a wave energy converter (WEC) having a shaft and a shell intended to be placed in a body of water and to move relative to each other in response to forces applied to the WEC by the body of water. The system includes apparatus for: (a) extracting energy from the WEC and producing output electric energy as a function of the movement of the shell (shaft) relative to the shaft (shell): and (b) for selectively imparting energy to one of the shell and shaft for causing an increase in the displacement and velocity (or acceleration) of one of the shell and shaft relative to the other, whereby the net amount of output electrical energy produced is increased. The apparatus for extracting energy and for selectively supplying energy may be implemented using a single device capable of being operated bi-directionally, in terms of both direction and force, or may be implemented by different devices.

REFERENCES:
patent: 4260901 (1981-04-01), Woodbridge
patent: 4491738 (1985-01-01), Kamp
patent: 6812588 (2004-11-01), Zadig
patent: 2002/0047273 (2002-04-01), Burns et al.

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