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<p>This paper presents a comprehensive study on the modelling and optimal placement of D-STATCOM in a microgrid to enhance power quality using a multi-objective analytical approach. The increasing integration of sensitive electrical loads and distributed generation sources in microgrids has led to significant power quality challenges, including voltage instability, unbalance, and harmonic distortion. It also highlights the need for advanced, dynamic solutions to power quality problems. On the other hand, simulation analysis is crucial to prevent D-STATCOM misplacement. A proposed two-stage methodology addresses these issues. First, a detailed Simulink model of a 5MVAr D-STATCOM is developed using Modified Synchronous Reference Frame (MSRF) techniques to ensure accurate dynamic performance. Second, an analytical multi-objective function is formulated, incorporating key power quality indices such as voltage deviation, unbalance, harmonic distortion, and stability improvement. Using the simulation method, the novel MWPQCLI index is introduced to prioritise bus locations for optimal D-STATCOM integration. All simulations and comparisons were conducted on the IEEE-9 bus renewable energy-based microgrid test system to ensure consistency, standardization, and reliable validation of index values across various bus locations. The proposed approach is scalable and adaptable to manage unbalanced and time-varying load conditions, which provides a robust solution for microgrid performance optimization.</p>

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Modeling and Positioning D-STATCOM Using an Analytical Method Based on a Multi-objective Function to Enhance Microgrid Power Quality

  • 期刊论文

  • 发表日期：

    2025年7月9日

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  • L. Raghavendra,
  • L. Parthasarathy,
  • Flory Francis,
  • Manjushree K. Chavan,
  • K. Rajesh,
  • Ashitha V. Naik,
  • B. T. Venu Gopal

摘要

This paper presents a comprehensive study on the modelling and optimal placement of D-STATCOM in a microgrid to enhance power quality using a multi-objective analytical approach. The increasing integration of sensitive electrical loads and distributed generation sources in microgrids has led to significant power quality challenges, including voltage instability, unbalance, and harmonic distortion. It also highlights the need for advanced, dynamic solutions to power quality problems. On the other hand, simulation analysis is crucial to prevent D-STATCOM misplacement. A proposed two-stage methodology addresses these issues. First, a detailed Simulink model of a 5MVAr D-STATCOM is developed using Modified Synchronous Reference Frame (MSRF) techniques to ensure accurate dynamic performance. Second, an analytical multi-objective function is formulated, incorporating key power quality indices such as voltage deviation, unbalance, harmonic distortion, and stability improvement. Using the simulation method, the novel MWPQCLI index is introduced to prioritise bus locations for optimal D-STATCOM integration. All simulations and comparisons were conducted on the IEEE-9 bus renewable energy-based microgrid test system to ensure consistency, standardization, and reliable validation of index values across various bus locations. The proposed approach is scalable and adaptable to manage unbalanced and time-varying load conditions, which provides a robust solution for microgrid performance optimization.