Abstract :
Solar energy is one of the endless natural resources if it is used continuously.
One of its uses is as a Solar Power Plant (PLTS). Voltage generated from solar panels
in the form of DC voltage (Direct Current) which is then converted into AC voltage
(Alternating Current) using an inverter. The voltage conversion is carried out aiming
to provide supply to the AC load used in the hydroponic planting control system.
The working principle of the inverter accepts the voltage generated from the
solar panels, then is accepted by the BCR (Battery Charge Regulator). The output
from BCR goes directly to the battery for storage when the weather is not hot or at
night. The output from the battery then goes to the inverter which is converted to AC
voltage which will be used by AC loads. In assembly, the main component used is the
CT transformer (Current Transformer).
The inverter is made from 12 VDC to 220 Vac with a power of more than
350 watts, because the load is calculated to be ± 350 watts. The test carried out is to
run the entire control system in the hydroponic planting system, namely the load of
the AC motor, the power supply to run the DC motor and also the sensor PH,
humidity and ultrasonic. The average value of the output voltage of the inverter is
220.4 volts using 240 volts trafo output.