Ehsan Mozaffarian - School of Electricity and Computers, Islamic Azad University, Qazvin branch, Qazvin, Iran
Navid Ghaffarzadeh - Assistant professor, Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran

In the last two decades, electrical power quality increasingly has been attracted attention of power companies and subscribers. This phrase (power quality) as an inclusive concept is considered for a variety of power system disturbances.In recent years, common methods has offered for improving power quality including the use of active, passive or hybrid filters.Considering the advantages and the growing use of renewable energy sources connected to the distribution networks, in this article the aim is to use renewable energy sources for power quality improvement.In this paper, while studying research in this field, a fuzzy controller to control the converter signals connected to the PCC and DC link is provided.This controller not only has the task of improving the power quality of the network, but also controls power transmission network between renewable energy and doing well

non-linear loads, unbalanced loads, power quality, renewable energy sources, connection point PCC