Comparative Evaluation of PI and Fuzzy Logic Controller for PV Grid-Tie Quasi Z-Source Multilevel Inverter

  • Devaraj Umarani REC Laboratory, Department of Electrical and Electronic Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India
  • Ramalingam Seyezhai REC Laboratory, Department of Electrical and Electronic Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India.
  • Sambasivan Dhivya REC Laboratory, Department of Electrical and Electronic Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India.

Abstract

This paper portrays a comparative analysis report of Proportional-Integral (PI) and Fuzzy Logic Controller (FLC) for total Power control of Photovoltaic (PV) based grid-tie single-phase five- level Quasi Z-Source Inverter (qZSI). The adopted power control scheme allows for independent maximum power point tracking (MPPT) and independent control of DC link voltage in each H-bridge of the proposed inverter. This analysis is carried out to depict the differences in the performance of both the controllers. It also demonstrates the suitability of the controllers for the proposed topology. The proposed inverter has the advantages of reduction in size of the impedance network, negligence of boost converter stage and boosting of voltage with the help of 9shoot through states. The power control scheme has been implemented with both PI controller and FLC. Simulation has been carried out using MATLAB software and the results are presented.

Published
Jul 1, 2021
How to Cite
UMARANI, Devaraj; SEYEZHAI, Ramalingam; DHIVYA, Sambasivan. Comparative Evaluation of PI and Fuzzy Logic Controller for PV Grid-Tie Quasi Z-Source Multilevel Inverter. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 40, n. 3, p. 465 - 473, july 2021. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/2151>. Date accessed: 28 july 2021. doi: http://dx.doi.org/10.22581/muet1982.2103.01.
Section
Articles
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License