Abstract
The paper concerns the development of a non-linear model of the MGR. The linear wave theory has been modified, simplifying the wave input form (sinusoidal) and disregarding the radiation component of the hydrostatic force. The storage stage of accumulators has not been taken into account.
The MGR is a near shore submerged converter that takes advantage of the oscillating water column created by the wave when it passes on the converter's platform. The wave column moves the platform, transmitting the force to a single acting cylinder, that pumps sea water to the coast, where is turbined generating electricity.
The model has been made using the MatLab's Simulink module. The aim of the model is to asses the working principle, validating the variable system pressure control strategy. The results have been as expected with small waves, overlapping cycles as wave size increases.