A Review of Common PV Array Configuration Schemes for Maximum Output Power

Partial shading of a PV array is a key concern in PV systems since it results in significant decrement of output power. The drop in output power is caused by non-uniform irradiances experienced by the PV array. Various PV array configuration schemes and shade dispersion techniques have been reported in the literature, such as Series-Parallel, Total Cross-Tied, Bridge-Linked, SuDoKu, Electrical Array Reconfiguration, and Dragonfly Algorithm. These schemes and techniques are popular and effective in improving maximum output power and mismatch power loss under partial shading. The advantages and drawbacks of each configuration strategy under various operating situations are discussed in this paper.