The utility model relates to the field of
renewable energy sources and can be used in autonomous photovoltaic systems (PVS) for powering AC and DC consumers in domestic, agricultural and industrial settings. The proposed utility model aims to improve the efficiency, stability, and reliability of mini-standalone photovoltaic systems by incorporating a
microcontroller-controlled magnetic power
amplifier into the
energy converter circuit. The mini-standalone
photovoltaic power station comprises solar panels, an
inverter, a step-up
transformer, a battery, a
magnetic amplifier, a
microcontroller, and a rheostat. Solar panels generate DC
electricity, which is converted by an
inverter to AC and fed to a step-up
transformer to power autonomous loads. A separate solar panel powers the
magnetic amplifier and charges the battery. A
microcontroller controls the
magnetic amplifier, regulating the saturation of its magnetic wire depending on the input
voltage, battery status, and load. A variable rheostat allows the
gain of the magnetic
amplifier to be adjusted depending on the current operating mode of the
system. Using a magnetic power
amplifier powered by a separate
solar energy source allows the
regulator to operate independently of the main circuit, increasing efficiency, reducing conversion losses, and ensuring output
voltage stability under changing solar
radiation and load conditions. The technical result consists in increasing the energy efficiency, reliability and stability of the operation of an autonomous photovoltaic
station due to the introduction of a magnetic power amplifier with autonomous power supply and
microprocessor control.