Water Electrolytic system

Abstract

A water electrolytic system includes a water electrolyzer, a photovoltaic generator which is a power source for the water electrolyzer, and a DC/DC converter adapted to convert the maximum output from the photovoltaic generator into a current and a voltage corresponding to an IV characteristic of the water electrolyzer by converting current and voltage for a portion of such maximum output, and to input the converted current and voltage to the water electrolyzer. With the water electrolytic system, even when an optimal point of operation of the photovoltaic generator, i.e., the maximum output from the photovoltaic generator has been varied, the efficient operation of the water electrolytic system can be carried out utilizing such maximum output.

What is claimed is:  
     
         1 . A water electrolytic system comprising a water electrolyzer, a photovoltaic generator which is a power source for said water electrolyzer, and a DC/DC converter adapted to convert the maximum output from said photovoltaic generator into a current and a voltage corresponding to an IV characteristic of said water electrolyzer by converting current and voltage for a portion of said maximum output, and to input the converted current and voltage to said water electrolyzer.  
     
     
         2 . A water electrolytic system comprising a water electrolyzer, a photovoltaic generator which is a power source for said water electrolyzer, and a DC power source adapted to add an external output to the maximum output from said photovoltaic generator in order to provide a current and a voltage corresponding to an IV characteristic of said water electrolyzer.