Wave energy conversions are being widely researched and developed in China; two key factors of significance with these devices are safety and efficiency. This paper provides information on the latest techniques of wave energy devices investigated in China, introduces their working principles, and describes performance briefly. To design a wave device, the conversion efficiency needs to be estimated. This paper describes a method for doing such analysis on a heaving buoy considering the power take-off, which is an important step for achieving wave-to-wire simulation.

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