ABSTRACT

The purpose of this research is design of an ocean-going solar-powered underwater glider for a long-term and wide-range monitoring of ocean environment and ecosystem. At first, operational situations using a buoyancy control device and a charging-and-discharging system for photovoltaic power generation was examined thoroughly. The specifications for the underwater glider were then fixed and on-board equipment was selected for satisfying actual operational condition. The MPPT (Maximum Power Point Tracking) system for maintaining optimal photovoltaic power generation was designed and assembled. And, an electric circuit was also made for protecting the battery from overcharge and over-discharge. Primary power system for an ocean-going solar-powered underwater glider was finally established.

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