Mini-automous photovoltaic system with a magnetic power amplifier

Abstract

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.