Design of a controller for grid bus power management with PV system

In this modern scenario of globalization, renewable energy resources is one of the most essential energy alternative to be used instead of conventional fossil fuels. This paper presents the power quality management of grid bus system in presence of asymmetrical load. The presence of asymmetrical load structure in utility grid directly affects the supply voltage and current. Here, the PV fed system with MPP tracking not only feed active power to the grid, but also compensate the effect of unbalanced load. During Electrical MPP Tracking, some of the internal unknown parameters of the PV system are necessary to be calculated with the help of known parameters of PV system. In MPP Tracking of a day, position of the PV systems and angle remain same, only current can be adjusted to maximum by adjusting internal parameters of PV system for MPP Tracking. In this paper, a matlab simulation of a bus with unbalanced load is presented and a controller is designed to compensate the effect of unbalanced load on the utility grid fed with PV system. Matlab simulated representative results are presented in this paper.