Research on self-optimization control methods for single phase PV system

Abstract

Actual characteristics of single phase PV cell are simply introduced. The traditional perturbation & observation method, incremental conductance algorithm and an improved self-optimization control strategy of dynamically adjusting tracking paces are analyzed considering different work conditions and the applications are discussed in detail. Simulation results firstly show that the automatic optimization process can be realized with all of the proposed methods the feasibility of which are testified; besides, the superiority of the improved solution scheme is effectively verified through comparison of the measured results and with the developed regulation system on the basis of fuzzy logic technology, excellent electrical power quality can be sent out with smooth amplitude, rapid response and low fluctuation content.