Power Quality Improvement in Renewable Energy Interconnection Grid at Distribution Level

Power Quality Improvement in Renewable Energy Interconnection Grid at Distribution Level
Authors : Medipalli Suresh, Srinivas STP
Publication Date: 03-10-2013


Author(s):  Medipalli Suresh, Srinivas STP

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.2 - Issue 10 (October - 2013)

e-ISSN:   2278-0181


This Paper presents a control strategy of the grid interconnected inverter Renewable Energy Sources (RES). This system can achieve the maximum benefits from these grid interconnected inverter when installed in 3 - phase 4 - wire distribution system. Increasing electrification of daily life causes growing electricity consumption and the rising number of sensitive o r critical loads demand for high quality electricity. One of the main problems facing today is that related with the transmission and distribution of electricity. Due to the rapid increase in global energy consumption and the diminishing of fossil fuels, t he customer demand for new generation capacities and efficient energy production, delivery and utilization keeps rising. Utilizing distributed generation, renewable energy and energy storage can potentially solve problems as energy shortage. With the incre ase in load demand, the Renewable Energy Sources (RES) are increasingly connected in the distribution systems which utilizes power electronic Converters/Inverters The inverter can perform as a multi function device by incorporating active power filter fun ctionality. The inverter can thus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies and validated through digital signal processor - based laboratory experimental results.


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