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Research Article |

Power Quality Improvement using Dual Multilevel Converter for Micro Grid-Connected PV Energy Systems using ANFIS

Author(s): B. Rupa1*, J. Namratha Manohar2 and M. Manjula3

Published In : International Journal of Electrical and Electronics Research (IJEER)        Volume 11, Issue 2

Publisher : FOREX Publication

Published : 30 June 2023

e-ISSN : 2347-470X

Page(s) : 550-558

DOI: https://doi.org/10.37391/ijeer.110242

Abstract

This paper presents the implementation of dual voltage source inverter (DVSI) approach to improve the microgrid performance by enhancing the power quality. This paper also improves the power quality in photovoltaic (PV) generation interactive microgrids, respectively. The power generated from PV based distributive energy resources (DER) is perfectly applied to the microgrid through the two inverters, thus the nonlinear and unbalance load related problems are compensated. Thus, the power quality problems such as voltage sag, current drops, and power factor, active, and reactive powers are reduced by dual multilevel converter (DMLC). This converter also used for cooperative controlling to minimize the unbalances and voltage harmonics in microgrid by using adaptive neuro fuzzy interface system (ANFIS) based controller, which is applied in the shunt and series manner between the two VSIs. The total load current is mutually shared among the series and shunt VSI, if one VSI fails, then the other VSI continues its operation. Thus, the DMLC components failure rate is reduced, and the system lost energy is also reduced, which leads to improved reliability by maintain the reduction of down time price at environmental free conditions. The proposed control model is implemented in MATLAB/Simulink environment, and the obtained results shows that the superiority of total harmonic distortion (THD) reduction by the proposed ANFIS controller as compared to the conventional artificial neural network (ANN) and fuzzy logic controllers (FLC) by eliminating all the load current and grid voltage-based harmonics.

Keywords: Micro grid, PV Systems, dual multilevel converter, Fuzzy logic controller, ANN controller, ANFIS controller.




B. Rupa*, Department of Electrical Engineering,Osmania University, Hyderabad, Telangana, India; Email: rupaboddapati05@gmail.com

J. Namratha Manohar, Electrical Engineering Department, Muffakham Jah College of Engineering and Technology; Email: j.namratha@mjcollege.ac.in

M. Manjula, Department of Electrical Engineering, Osmania University, Hyderabad, Telangana, India; Email: manjulagooga@gmail.com

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B. Rupa, J. Namratha Manohar and M. Manjula (2023), Power Quality Improvement using Dual Multilevel Converter for Micro Grid-Connected PV Energy Systems using ANFIS. IJEER 11(2), 550-558. DOI: 10.37391/IJEER.110242.