CONTROLLER FOR PENDULUM TYPE WAVE-POWER GENERATING APPARATUS

摘要

The present invention provides a controller for a pendulum type wave-power generating apparatus. Electric power produced by wave-power generation has been pointed out as being of low efficiency and more expensive than wind-power generation. To overcome the above problems, the present invention uses resonance and impedance matching of the sea waves, thus making it possible to markedly enhance the efficiency of wave-power generation. The present invention does not use a wave-height meter which is generally expensive and controls the generating apparatus in response to variation of the conditions of the sea, thus automatically maintaining the resonance and impedance matching operation, thereby making high-efficiency operation possible. As a result, the cost of the wave-power generation can be reduced, so that the wave-power generation can be widely commercialized.

主权项

1. A controller for a pendulum type wave-power generating apparatus converting a pendulum motion of wave-power energy into a rotary motion using a hydraulic transmission that has pressure accumulators (31) and (41) on a hydraulic circuit thereof, thus operating a generator (60), the controller comprising:
pressure control valves (33) and (43) controlling output volumes of hydraulic motors (32) and (42) that operate the generator (60) such that the output volumes are proportional to mean hydraulic pressures in pipes (30) and (40) of the hydraulic circuit so that a mean value of wave-power energy input into the hydraulic circuit is equal to a mean value of a drive force of the generator (60), whereby wave-power energy is able to be used regardless of a variation in wave conditions on the sea.