Passive filter for harmonics mitigation in standalone PV system for non linear load

Several studies have been presented regarding the harmonics mitigation by using different types of filters. Passive filter is one of them and is employed due to his simplicity, economical cost and high reliability in power system. This paper presents an analysis and study of three types of passive filters to minimize harmonics distortion caused by non linear loads in standalone PV system. In order to achieve the certain filtering effect, it is necessary to combine different filter topologies; generally these topologies can be divided into two categories: series AC reactor and shunt passive filter such as tuned filters and high pass filters. This paper presents firstly the basic design and components of PV system, secondly describes the causes of harmonics and their effects and presents the means to improve power quality and to protect the equipment in our power system. The proposed system is verified by the simulation using Matlab/Simulink environment.