| 摘要 |
A photovoltaic pumping system is provided to secure sufficient pumping time by driving a pump in the morning or the evening in which solar irradiance is low. A solar panel(10) generates electricity by condensing sunlight. An inverter(20) converts a DC generated from the solar panel into an AC. A main pump(30) is driven by receiving a current from the inverter. A support pump(40) of small-capacity is driven by receiving a current of the inverter, and is driven by solar irradiance lower than the main pump. An ON/OFF switch is installed on each circuit line which connects the inverter to the main pump and the support pump, and comprises a first switch(31) and a second switch(41) which control operations of the main pump and the support pump. |
