$4.($A$).$ Explain the following terms in the PV system and power electronic devices: $(1)$ shading effect, $(2)$ MPPT$,(3)$ battery management systems $($BMS$),(4)$ grid parity of PV system, $(5)$ carbon board adjustment mechanism $($CBAM$).10$ points

$($B$).$ There are some typical maximum power point tracking controlled algorithms in the industrial PV system applications shown in Figs. $4.$ States and describes the fuzzy logic controller based MPPT technique in detail shown in Figs. $4($a$)$ and $4($h$)10$ noints