Implementation of Grid Based Distributed 3P4W System Using ANFIS Control
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2015, Vol 4, Issue 1
Abstract
The increase in global energy demand and load demand, the Renewable Energy Sources (RES) are increasingly connected in the distribution systems which utilises power electronics Converters/Inverters. This paper suggests a new method that consists of a four leg inverter that is capable of simultaneously compensating problems like current imbalance and current harmonics, reactive power demand, power factor and also injecting the energy generated by renewable energy sources. Thus the load neutral current is prevented from flowing into the grid side by compensating it locally from the fourth leg of the inverter. The main objective of this project is nonlinear unbalanced load compensation. Since the inverter works under highly fluctuating operating conditions, it is not possible to set optimal values of gains for the PI controller, this may lead to a false operation of the inverter, Since This paper presents a novel control strategy for renewable interfacing inverter to achieve nonlinear unbalanced load at PCC. Adaptive neuro-fuzzy control is used to overcome all types of nonlinear loads at PCC to make the load to be linear to the grid. This enables the grid to always supply/absorb a balanced set of fundamental currents at unity power factor even in the presence of the 3P4W nonlinear unbalanced load at the point of common coupling. This work is carried out and simulated in MATLAB/SimPowerSystem environment under different operating conditions.
Authors and Affiliations
P. Jeevanateja, M Sridhar
Keywords
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