| 摘要 |
PURPOSE:To boost a voltage under DC 30V to DC 100V by connecting in parallel plural switching batteries between a solar battery and an invertor, and connecting an auxiliary battery to a connecting circuit of the battery and the invertor. CONSTITUTION:A voltage under DC 30V is charged to a switching battery 3 or a switching battery 4 from a solar battery 1 and boosted to DC 100V, the voltage boosted to DC 100V is sent to an invertor 2 by one of the switching battery 3 or 4, and an AC load 10 is operated. Switching of the switching battery 3 or 4, and an operation of the invertor 2 are executed by a control device 8. Also, an instantaneous service interruption at the time of switching the switching battery 3 and 4 is compensated by an auxiliary battery 6 which is always charged by DC 100V. |
