Modeling and Analysis of Controllers for PV sourced Grid Connected inverter with Unbalanced Nonlinear loads
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 4
Abstract
nowadays, the majority of Photovoltaic power sources connected with the grid has been increased. One of the major problems is the poor PV utilization under changing operating condition. So in order to improve the PV utilization along with grid connected inverter, this system has been implemented with controller analysis and model. This system is mainly used for non linear load compensation. As well as, it also controls the active power generation and provides the reactive power compensation under unbalanced condition. And this module is also used to maintain the maximum injected power to the grid and also compensates the unbalanced nonlinear currents. In the existing method, Peak current of the inverter is reduced during the unbalanced grid-voltage sags with the help of current harmonics injection which increases the total harmonic distortion. In order to reduce the Total Harmonic Distortion, inverter current is maintain within its rated value in this proposed method. Also this module constitutes about voltage sag, swells problems and the controller has been designed using grid connected Inverter control techniques. As well as the maximum power point of PV is tracked using Incremental Conductance technique to reduce the error and improves the system efficiency. The theoretically designed models are confirmed using MATLAB/Simulink software.
Authors and Affiliations
M. Jeevitha, R. Naveen, G. Revanth Chakravarthi
Keywords
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