Zhale Amirjamshidi - lecturer at the Islamic Azad University of Rodehen Tehran, Iran
Zahra Mokhtari - lecturer at the Islamic Azad University of Rodehen Tehran, Iran
Zeinolabedin Moussavi - Assistant professor, Shahid Rajae teacher training University Tehran, Iran
Parviz Amiri - Assistant professor, Shahid Rajae teacher training University Tehran, Iran

Maximum power point tracking is considered to be an efficiency improving method applicable to the solar arrays. In this paper, Fuzzy-Big Bang-Big Crunch algorithm is applied in tracking ofmaximum power point. Simulation has been done in both MATLAB software where comparison made between Fuzzy-BigBang and Fuzzy algorithm-alone. It has shown that in various temperatures and irradiations, optimized duty cycle achieved byproposed method is closer than fuzzy logic method to the valuespreviously expressed in the referred source. Using those calculated values, the maximum error in Fuzzy-Big Bang methodis only 0.0028 where fuzzy logic shows 0.0088. That is, the maximum error is reduced by 6.67% also efficiency of thesystem with Fuzzy-Big Bang algorithm is 5% improved in comparison with the Fuzzy method. The tracking system will quickly adapt itself even in rapidly environmental changes.

MPPT, Fuzzy, BB-BC, Fuzzy-BBBC, PV