CONTROL TECHNIQUES FOR WAVE ENERGY CONVERTERS
CONTROL TECHNIQUES FOR WAVE ENERGY CONVERTERS
CONTROL TECHNIQUES FOR WAVE ENERGY CONVERTERS
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Oscillating-body dynamics<br />
Example: Heaving buoy with hydraulic PTO (oil)<br />
• Hydraulic cylinder (ram)<br />
• HP and LP gas accumulator<br />
• Hydraulic motor<br />
PTO force:<br />
Coulomb type (imposed by<br />
pressure in accumulator, piston<br />
area and rectifying valve system)<br />
Buoy<br />
LP gas HP gas<br />
accumulator accumulator<br />
Motor<br />
A<br />
Valve<br />
Cylinder<br />
B