Abstract—Photovoltaic modules must generally be connected
in series in order to produce the voltage required to efficiently
drive an inverter.However, if even a very small part of photovoltaic
module (PV module) is prevented from receiving light, the generation
power of the PV module is decreased disproportionately. This
greater than expected decrease occurs because PV modules which
do not receive adequate light cannot operate on the normal operating
point, but rather operate as loads. As a result, the total power
from the PV modules is decreased if even only a small part of the
PV modules are shaded. In the present paper, a novel circuit, referred
to as the generation control circuit (GCC), which enables
maximum power to be obtained from all of the PV modules even if
some of the modules are prevented from receiving light. The proposed
circuit enables the individual PV modules to operate effectively
at the maximum power point tracking, irrespective of the series
connected PV module system. In addition, the total generated
power is shown experimentally to increase for the experimental
set-up used in the present study.