Modeling and Simulation Research on Accumulator effect of the Hydraulic Power Take-off System for a Wave Energy converter

The latest research progress of the floating hydraulic wave power generating device -(Dragon I) is introduced in this paper. Dragon-I is a kind of point absorbing wave energy conversion device which uses hydraulic electricity generated system with energy storage function as the intermediate link to achieve the conversion of mechanical energy, hydraulic energy and electric energy. The mathematical model of the hydraulic power generation system is established, and the regulating function of the accumulator is analyzed in this paper. The simulation results show that the accumulator is obvious to the pressure and flow control and regulation in the hydraulic electricity generated system, which verified that the accumulator can stabilize the electric energy generated by the periodic motion excitation.

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