The maximum output power of solar cells may reduce under partial shading conditions

which further leads to uneven current in the photovoltaic (PV) array and multiple peaks in the power/voltage output characteristic curve

therefore

we proposed.a scheme of an integrated array of a solar cell+supercapacitor (SCS) device by dynamically reconfiguring the topology and connecting it to a conventional PV array. We adopted a row voltage closed-loop control strategy on the basis of the supercapacitor charging and discharging characteristics of the SCS device. According to the deviation between the row voltage of the PV array and the maximum power point voltage

the control objective is to maximize the output power of the integrated array

and the switch matrix is used as the decision variable. The connection method between SCS devices and the PV array is adjusted to balance the current in each row of the PV array

and to achieve power compensation for shadow covered cells by SCS devices. The 9×9 SCS integrated array were built

and the output characteristics of TCT

static array reconfiguration

dynamic array reconfiguration

and SCS integrated arrays were compared and analyzed under four typical dynamic cloud shading conditions. The results show that the filling factor of the SCS integrated array reaches 77.4%

and the power loss is about 18 W

which is better than the that of other three schemes. The SCS integration array effectively improves the output power of PV arrays under partial shadow conditions.