A novel strategy for implementation of intelligent techniques in solar photovoltaic arrays to improve the performance and various comparison of partial shading mitigating techniques

This paper proposes a new reconfigure technique to improve efficiency by reconfiguring the photovoltaic array during the different partial shading conditions and comparative analysis with various partial shading mitigating techniques. Normally, the photovoltaic array efficiency is less even if the shading occurs in parts on the PV panels in an array. To extract maximum output from solar PV panels, the different modulation and MPPT techniques are utilized. Due to continuous and discontinuous partial shading, this MPPT technique also fails to perform a uniform power voltage curve. Therefore, to improve the efficiency and performance of the PV array, a prudent solution is needed to dispersing the shading by reconfiguring the solar panel array. Most of the present reconfiguration schemes are quite complex, succumb to erroneous execution, and not suitable for practical implementations. The proposed Intelligent Reconfiguration Technique (IRT) technique is well suited for extension of power ranges and it offers smooth power vs voltage graph there by the algorithm struck up in local maxima can be averted. Also the superiority of the IRT method quantitatively proven in Table 6 by comparing other methods with various shading patterns.