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Research Article |

Power Quality Enhancement in Solar PV and Battery Integrated UPQC Grid Connected System

Author(s): Shravani Chapala 1*, Dr. Narasimham R. L. 2 and Dr. Tulasi Ram Das3

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) : 291-298

DOI: https://doi.org/10.37391/IJEER.110207

Abstract

This paper discusses a distributed generation system consisting of grid-connected solar PV and a battery-integrated Unified Power Quality Conditioner (UPQC). Embedded in the PV array, the UPQC consists of a series and shunt converter connected back through a common DC link. In this system, power quality problems of clean energy, such as harmonics, voltage drops, ripples, are compensated by injecting active energy into the power grid. The shunt converter is controlled to maintain a constant DC link voltage and harmonic compensation of the load current. The main voltage problem is compensated by a series converter that injects the voltage during sag and swell. The advantages of integrating renewable energy sources and enhancing power quality are brought together in this system. The performance of the system is analyzed during voltage sag, swell condition and under unbalance condition for nonlinear load along with power flow analysis through the enhancement of dc bus voltage. Finally, the simulation results are shown for the estimation of dynamic performance of PV, battery integrated UPQC system during unbalanced condition

Keywords: Battery management system, Grid integration, MPPT, Power quality, Solar PV, UPQC.




Shravani Chapala*, Department of EEE, CVR College of Engineering, Hyderabad, India; Email: shravanic2@gmail.com

Dr. Narasimham R. L., Dept. of EEE, Rtd. Professor, Andhra University, Vishakhapatnam, India; Email: rlnarasimhamrl@gmail.com

Dr. Tulasi Ram Das, Professor Emeritus. Dept. of EEE, JNTUH College of Engineering, Hyderabad, India; Email: das_tulasiram@yahoo.co.in

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Shravani Chapala, Dr. Narasimham R. L. and Dr. Tulasi Ram Das (2023), Power Quality Enhancement in Solar PV and Battery Integrated UPQC Grid Connected System. IJEER 11(2), 291-298. DOI: 10.37391/IJEER.110207.