Title: Extended analysis of modified voltage sensor-based type-2 fuzzy logic controller for drift avoidance under uncertain weather conditions

Authors: Divyanshi Srivastava; Navdeep Singh

Addresses: Department of Electrical Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, (U.P.), India ' Department of Electrical Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, (U.P.), India

Abstract: This paper presents a single voltage sensor based type-2 fuzzy logic controller (T-2 FLC) to improve the steady state efficiency and drift-free tracking of maximum power point for PV systems. This modified technique involved a computational unadorned single sensor variant-based objective function under uncertain weather conditions. The existing sensor reduction tracking technique fails to address the issue of ad-hoc tunable parameters, negotiation between steady state and dynamic requirements, and drift conditions. In this technique, a single sensor based objective function is used as an error for T-2 FLC. T-2 FLC offers superior capability for handling uncertainty. The modified technique exhibits minimal settling time (0.0089 sec), low oscillations (less than 5%), and higher efficiency (99.13%) compared to conventional and drift free tracking techniques. Additionally, comparative results between the modified technique and type-1 FLC-based technique indicate that the modified technique yields superior outcomes as compared to type-1 FLC.

Keywords: perturb and observe; P&O; type-2 fuzzy logic controller; T-2 FLC; single voltage sensor; SVS; SVS-based algorithm; drift phenomenon; DC-DC boost converter.

DOI: 10.1504/IJPEC.2025.145341

International Journal of Power and Energy Conversion, 2025 Vol.16 No.2, pp.186 - 204

Received: 24 Jun 2023
Accepted: 05 Jan 2024
Published online: 31 Mar 2025 *

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