| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve problems of a conventional solar system that sufficient electric power is not supplied from a solar battery irrespective of sufficient heating of a heating medium by a heat collection panel for collecting solar heat when it is slightly cloudy in the daytime or temporarily cloudy while it is fine weather, thereby stopping a circulation pump of the heat medium and the circulation of the heat medium between a heat exchanger in which tap water and the heating medium perform heat exchange and the heat collection panel, and making heating action of the heat collection panel wastefull. <P>SOLUTION: When a voltage of a capacitor for buffer for storing electric power from the solar battery and supplying it into the circulation pump is lower than a predetermined value due to slightly cloudy weather in the daytime, electric power from commercial alternate current power supply is converted into a predetermined voltage by a AC-DC converter, and then the electric power is supplied into the capacitor to supplement an output of the solar battery and apply a voltage to the circulation pump at all times in order to prevent waste heating action of the heat collection panel. <P>COPYRIGHT: (C)2003,JPO</p> |
