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Research Article |

Power Quality Improvement Grid Integrated Photovoltaic with LCL Filter Using DQ Controller

Author(s): R. Senthil Kumar 1*, Dr. Prabakaran. S 2 and Dr. S. Sentamil Selvan3

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 11, Issue 2,  Special Issue on Environmental Sustainability through Alternative Energy Sources and Electronic Communication

Publisher : FOREX Publication

Published : 18 May 2023

e-ISSN : 2347-470X

Page(s) : 283-290

DOI: https://doi.org/10.37391/IJEER.110206

Abstract

Grid-interactive solar photovoltaic (PV) systems are necessary for the current global scenario owing to their low cost and pollution-free energy source. The integration of PV systems in the power grid needs to be stabilized. To address this, this paper presents a composite controller that can synchronize Photovoltaic (PV) to the Grid, with bidirectional power flow in Grid. The proposed technique is explored with both RL and LCL filters. With grid synchronization of PV power generation, a control loop for power quality disturbance mitigation is simulated. The multicarrier SVPWM with DQ controller is used on the Grid Connected converter to mitigate Power Quality disturbances. MATLAB Simulink model is developed for the PV Grid setup and the validity of the composite controller is evaluated. The PI controllers are applied in the DQ-controlled PV integrated with the grid. Power quality parameters THD are found to be intact for both RL and LCL filters. The MATLAB simulation developed showed that the LCL filter has an incremental performance progression than using the RL filter. There is around a 3 to 4% improvement in the grid current THD while using the LCL filters instead RL filter for PV integration.

Keywords: Power Quality, Total Harmonic Distortion (THD), Grid Synchronization, PV integration, DQ controller.




R. Senthil Kumar*, Research Scholar, Department of EEE, SCSVMV University, Kanchipuram, India; Email: rangasendil@gmail.com

Dr. Prabakaran. S, Associate Professor, Department of EEE, SCSVMV University, Kanchipuram, India; Email: prabakaran@kanchiuniv.ac.in

Dr. S. Sentamil Selvan, Head, Department of EEE, SCSVMV University, Kanchipuram, India; Email: sentamilselvan.s@kanchiuniv.ac.in

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R. Senthil Kumar, Dr. Prabakaran. S and Dr. S. Sentamil Selvan (2023), Power Quality Improvement Grid Integrated Photovoltaic with LCL Filter Using DQ Controller. IJEER 11(2), 283-290. DOI: 10.37391/IJEER.110206.