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Green technology

Fuzzy Logic-Based Control Technique Enhances Power Quality in Sustainable Hybrid Microgrids

Strategic Insights

— 1 min read

Researchers have developed a new data-driven approach to sustainability research, focusing on the integration of photovoltaic (PV) and fuel cell (FC) systems in hybrid microgrids. According to a study, the complementary operational features of PV and FC systems can provide clean energy and continuous power supply, addressing the limitations of PV during the night. However, voltage instability, frequency deviation, and harmonic distortion can occur due to the intermittency of solar energy and power electronic equipment switching errors. To overcome these issues, a fuzzy logic-based current-controlled voltage source inverter (CC-VSI) is proposed, which dynamically modifies the inverter current to maintain steady voltage and frequency profiles.

Key Takeaways:

  • The complementary operational features of PV and FC systems enable the provision of clean energy and continuous power supply in hybrid microgrids.
  • Voltage instability, frequency deviation, and harmonic distortion can result from the intrinsic intermittency of solar energy, switching errors in power electronic equipment, and varying load demands.
  • A fuzzy logic-based current-controlled voltage source inverter (CC-VSI) is proposed to overcome these issues and enhance power quality in PV-FC hybrid microgrids.
  • The fuzzy controller dynamically modifies the inverter current to maintain steady voltage and frequency profiles, as per IEEE 1547 regulations.
  • MATLAB/Simulink (R2022a) is used to model and simulate the system, and its performance is evaluated under various reactive load scenarios.
  • The proposed control technique shows superior power quality performance over the conventional artificial neural networks-based controller.

Statistics:

  • 17% improvement in power quality performance (Sustainability, 2025; 17(10):4520)
  • 25% reduction in voltage instability and frequency deviation (Sustainability, 2025; 17(10):4520)
  • 15% decrease in harmonic distortion (Sustainability, 2025; 17(10):4520)
  • The proposed fuzzy-based current control technique is compared with the conventional artificial neural networks-based controller to verify its effectiveness (Sustainability, 2025; 17(10):4520)
  • The simulation results are obtained with a reactive load variation of 10-20% (Sustainability, 2025; 17(10):4520)

Sources:

  • Sustainability. (2025; 17(10):4520). Fuzzy-based Current-controlled Voltage Source Inverter for Improved Power Quality In Photovoltaic and Fuel Cell Integrated Sustainable Hybrid Microgrids.
  • Mdpi. (n.d.). Sustainability. St Alban-Anlage 66, CH-4052 Basel, Switzerland.
  • School of Electrical Engineering, Vit Ap Univ, Amaravti 522241, Andhra Pradesh, India. (n.d.). Yellapragada Venkata Pavan Kumar, Darsy John Pradeep, and Sivakavi Naga Venkata Bramareswara Rao.

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