Photovoltaic modules produce DC power, but almost all the appliances we use in daily life are designed for AC power, so we have to convert DC power to AC power through an inverter. An inverter is the core of the PV system, controlling the efficiency of the PV power plant. So, how does an inverter do this job?
What is DC and AC?
First of all, we need to understand what is DC and AC.
Direct current (DC): An electric current whose electromotive force, voltage, or direction of current does not change periodically with time.
Alternating current (AC): An electric current whose electromotive force, voltage, or direction of current varies periodically with time.