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Voltage regulation and stability enhancement in renewable energy micro grids with E-STATCOM under unbalanced loads

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  • Vaisakh, T.
  • Jayabarathi, R.

Abstract

Power systems have significant challenges in scheduling energy supply, particularly as intermittent power sources like renewable energy sources proliferate. Power quality (PQ) is an essential aspect of electrical systems, ensuring a stable and reliable power supply to end-users. PQ issues are a class of disturbances that can manifest as distortion of frequencies, voltage asymmetry, voltage disruption transitory phenomena, frequency divergence, and other phenomena in microgrid systems. To address these issues, this manuscript proposed an integrated framework utilizing Improved Dung Beetle Optimization (IDBO) algorithm for efficient voltage regulation and stability and is termed as IDBO approach. With the employment of Energy Storage Systems (ESS) and the IDBO, a technique for regulating Enhanced Static Synchronous Compensators (E-STATCOMs) in microgrid is presented in this research study. The proposed method efficiently controls power fluctuations from renewable energy sources (RES) such as wind and solar while keeping constant voltage and frequency levels, working in both Stand-Alone (SA) and Grid Connected (GC) modes in microgrid. The efficiency of the control framework is expressed by the study's thorough modelling of the modified IEEE power distribution system with 34 nodes and with an integrated system.

Suggested Citation

  • Vaisakh, T. & Jayabarathi, R., 2026. "Voltage regulation and stability enhancement in renewable energy micro grids with E-STATCOM under unbalanced loads," Renewable Energy, Elsevier, vol. 257(C).
    • Handle: RePEc:eee:renene:v:257:y:2026:i:c:s0960148125023808
    DOI: 10.1016/j.renene.2025.124716
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    References listed on IDEAS

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    1. Faraji, Hossien & Nosratabadi, Seyyed Mostafa & Hemmati, Reza, 2022. "AC unbalanced and DC load management in multi-bus residential microgrid integrated with hybrid capacity resources," Energy, Elsevier, vol. 252(C).
    2. Muraly, N. & Ajay D Vimal Raj, P., 2025. "Innovative approach for improving power quality in solar energy systems with DSTATCOM for stabilising the grid and effectively mitigating harmonics," Renewable Energy, Elsevier, vol. 250(C).
    3. Thapar, Vinay & Agnihotri, Gayatri & Sethi, Vinod Krishna, 2011. "Critical analysis of methods for mathematical modelling of wind turbines," Renewable Energy, Elsevier, vol. 36(11), pages 3166-3177.
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