Power optimization strategy for cascaded DC-DC converter architectures of photovoltaic modules

This paper proposes a control strategy aiming at operating cascaded DC-DC converter architectures of photovoltaic (PV) modules at maximum power irrespective of the irradiance conditions, meanwhile meeting constraints of voltage-limitation type. The global optimum of cascaded connections of PV modules is generally equivalent with operating all the modules at maximum power point tracking (MPPT). The most important disturbance occurs when the...