A Fuzzy MPPT Based Voltage Regulator Integrated Asymmetrical Multi-Level Inverter Standalone PV Source
A Fuzzy MPPT Based Voltage Regulator Integrated Asymmetrical Multi-Level Inverter Standalone PV Source |
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| © 2025 by IJETT Journal | ||
| Volume-73 Issue-10 |
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| Year of Publication : 2025 | ||
| Author : Rampalli Jagan, Bhaskar Kanna | ||
| DOI : 10.14445/22315381/IJETT-V73I10P102 | ||
How to Cite?
Rampalli Jagan, Bhaskar Kanna,"A Fuzzy MPPT Based Voltage Regulator Integrated Asymmetrical Multi-Level Inverter Standalone PV Source", International Journal of Engineering Trends and Technology, vol. 73, no. 10, pp.10-21, 2025. Crossref, https://doi.org/10.14445/22315381/IJETT-V73I10P102
Abstract
The replacement of conventional energy sources with renewable alternatives has become a key strategy to mitigate global warming. Among these, PV systems are highly promising due to their flexible deployment and relatively low initial cost. However, PV systems produce fluctuating power and unstable DC voltage since their output depends directly on solar irradiation. To effectively harness PV power, this work integrates a fuzzy logic-based MPPT voltage regulator with an asymmetrical multilevel inverter connected to a standalone PV array. The proposed system employs four PV modules operating at different voltage levels, configured with an asymmetrical 31-level inverter. These voltage levels are combined by a level generator to produce 15 distinct voltage steps, which are then inverted using a four-switch full bridge. A comparative study is conducted between the conventional MPPT P&O method and the FL-based MPPT regulator. The results highlight the superior performance of the fuzzy MPPT approach in achieving optimal control for the standalone PV inverter, as demonstrated by higher extracted power amplitude and reduced tracking time.
Keywords
Photo Voltaic (PV), Maximum Power Point Tracking (MPPT), Fuzzy logic, Perturb and Observe (P&O), Fuzzy Logic (FL), Asymmetrical multi-level inverter.
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