Module Integrated Converter Based MPPT Application
Mustafa Engin Başoğlu Bekir Çakır
AbstractThis paper presents a modified global maximum power point tracking (GMPPT) algorithm which may be suitable in module integrated converters (MICs) used in distributed MPPT (DMPPT) system. Algorithm developed for this type of system uses basic voltage - current (V-I) and voltage - power (VP) characteristic features of photovoltaic (PV) modules. It employs the relationship between maximum power voltage and open circuit voltage of a PV module and number of bypass diodes included in a module. To verify the effectiveness of the proposed algorithm, single ended primary inductance converter (SEPIC) is designed. Simulative and experimental results show that GMPPT is realized for all shading conditions with small convergence time owing to the searching of large duty range.