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A Modified Incremental Conductance-Based Active Power Curtailment for Voltage Regulation in Highly PV-Fed Distribution Grids

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  • Abdullah Said, Dr. Gul Muhammad, Muhammad Zakir

    (University of Engineering and Technology Department of Power Engineering Peshawar, Pakistan. Dr. Khan Shaheed Degree College Department of Computer Science Kabal, Swat, Pakistan)

Abstract

Increasing the penetration of photovoltaic (PV) systems in the distribution grid poses challenges, including voltage rise and potential violations during low load conditions or peak PV generation. This paper introduces a modified incremental conductance (IC) method to limit the active power injection from PV systems, mitigating voltage violations. A voltage-sensitive control loop is integrated into the IC method to improve its performance. This algorithm allows for the dynamic adjustment of active power output based on real-time voltagemeasurements from the grid, enabling precise voltage regulation while maintaining maximum power point tracking (MPPT) under normal conditions. When necessary, it shifts the operating point away from the maximum power point (MPP) to limit active power injection, ensuring voltage stays within safe limits. The proposed algorithm is less complex, cost-effective, and can be implemented in existing inverters using the IC method. The algorithm’s effectiveness is validated through Simulink/MATLAB simulations, using a setup consisting of a distribution grid with two solar PV-based distributed generators (DGs), each with a capacity of 100 kW

Suggested Citation

  • Abdullah Said, Dr. Gul Muhammad, Muhammad Zakir, 2025. "A Modified Incremental Conductance-Based Active Power Curtailment for Voltage Regulation in Highly PV-Fed Distribution Grids," International Journal of Innovations in Science & Technology, 50sea, vol. 7(7), pages 355-366, May.
    • Handle: RePEc:abq:ijist1:v:7:y:2025:i:7:p:355-366
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