Uneven light reception for photovoltaic panels

Can photovoltaic array reconfiguration reduce the negative effects of partial sharding conditions?

A physical-electrical mixed PVR, leads to optimum results in PSC mitigation. This paper aims at exploring different PhotoVoltaic (PV) array Reconfiguration (PVR) methods, used to reduce the negative impacts of Partial Shading Conditions (PSCs), that could affect the performance of a PV system (i.e. hotspots, electrical mismatch, etc.).

How are PV panels repositioned in a 5 4 PV array?

For a 5 × 4 PV array, PV panels are relocated according to Non Symmetrical (NS) patterns denoted as NS1 and NS2 . The configurations NS1 and NS2 are only possible for patterns with odd-numbered rows. In case of repositioning only even-numbered rows, there would be a single NS pattern.

Why are photovoltaic modules so sensitive to solar irradiation?

Photovoltaic modules are very sensitive to the reduction of solar irradiation due to shading. Shading can be caused by a fixed obstacle (wall, tree or even a simple pillar) or in case of circumstantial events (cloudy sky or covered with heavy smoke or dust).

How can bifacial solar panels increase energy yield?

The use of photovoltaic (PV) technologies has become a crucial way to meet energy demand. There are many ongoing studies for increasing the efficiency of commercial PV modules. One way to increase the energy yield of the PV modules is to use bifacial solar panels by capturing the rear side illumination as well.

How do photovoltaic panels overcome seasonal and diurnal reception angles disparities?

To overcome seasonal and diurnal reception angles disparities in a designated photovoltaic panel, a sun tracking mechanism needs to be devised. The sun tracker controls photovoltaic panel positioning toward the sun’s rays in order to achieve a perpendicular condition.

How are PV modules relocated within a PV array?

With the ability of application to any array size, the PV modules are relocated within the PV array according to the following steps : 1. 2. 3. 4. 5. 6. 7. 8. 9. The initial 9 × 9 matrix is decomposed into nine 3 × 3 matrices, and the relocation process is held for each sub-array by adding the row/column indices of panels .