High-voltage power supply system of low-orbit spacecraft

The authors have proposed the structure of the high-voltage power supply system of low-orbit spacecraft based on regulated current inverter, which allows adjusting solar battery voltage in a range sufficient to implement the maximum power point tracking mode. The characteristics at drift of current-voltage curve of solar battery and different values of the load were obtained. The power supply system operation in the output voltage stabilization mode and in the maximum power point tracking (MPPT) mode is demonstrated.