Abstract
In this study the conventional inverter interfacing renewable energy sources with the grid, without any additional hardware cost. Here, the main idea is the maximum utilization of inverter rating which is most of the time underutilized due to intermittent nature of RES. Based on the non-linear characteristics of PV, these thesis designs a VSS controller to realize the maximum power output of PV arrays. The output power from renewable energy sources fluctuates because of weather variations. This study proposes an effective power quality control strategy of renewable energy sources connected to power system using Photovoltaic (PV) array. If the main controller used is a PR controller, any dc offset in a control loop will propagate through the system and the inverter terminal voltage will have a nonzero average value. In this strategy both load and inverter current sensing is required to compensate the load current harmonics. The non-linear load current harmonics may result in voltage harmonics and can create a serious PQ problem in the power system network.
Highlights
In Electrical Power distribution networks, it is essential to balance the supply and demand of active and reactive power in an electric power system
The voltage regulation is poor in the distribution system due to the unplanned expansion and the installation of different types of loads in the existing distribution system (Enslin and Heskes, 2004; Borup et al, 2001)
In this study analysis of an effective power quality control strategy of renewable energy sources connected to power system using Photovoltaic (PV) array
Summary
In Electrical Power distribution networks, it is essential to balance the supply and demand of active and reactive power in an electric power system. As the number of power electronics equipment increase in power systems, the quality of electric power supply is spoiled (Pinto et al, 2012). Both high power industrial loads and domestic loads are the source of unbalanced currents and current harmonics distortions in electric power supplies (Kimball et al, 2009). In this study analysis of an effective power quality control strategy of renewable energy sources connected to power system using Photovoltaic (PV) array In this strategy both load and inverter current sensing is required to compensate the load current harmonics
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