Maximum power point tracking (MPPT) is like a game of finding treasure. Imagine you have a toy car that runs on sunlight, you need to find the best place where it can get the most sunlight and runs the fastest. This is what MPPT does.
When the sun shines on a solar panel, it produces some amount of electricity that can be used to power things like lights and toys. But the amount of electricity it produces depends on many things like the angle of the sun, the temperature, and the type of solar panel.
MPPT helps to find the 'sweet spot' where the solar panel produces the most electricity. This is like finding the treasure spot. The MPPT controller will keep trying different things like adjusting the voltage and current of the solar panel until it finds the spot where it's producing the most electricity.
Once the spot is found, the MPPT controller will keep adjusting things to make sure the solar panel always stays at that spot even if there are changes in the weather. This way, the toy car (or anything else powered by the solar panel) can get the most amount of electricity it needs to run as fast as possible.
In simpler words, MPPT helps a solar panel to find the best spot to produce the most electricity, and then makes sure it always stays there so that we can get the most out of it.