Application of ERPDC in LV Microgrids with Resistive Feeder Impedance

International Journal of Electrical and Electronics Engineering

© 2025 by SSRG - IJEEE Journal

Volume 12 Issue 8

Year of Publication : 2025

Authors : Devireddy Sathish, Pannala Krishna Murthy, Narri Yadaiah

10.14445/23488379/IJEEE-V12I8P107

How to Cite?

Devireddy Sathish, Pannala Krishna Murthy, Narri Yadaiah, "Application of ERPDC in LV Microgrids with Resistive Feeder Impedance," SSRG International Journal of Electrical and Electronics Engineering, vol. 12,  no. 8, pp. 57-70, 2025. Crossref, https://doi.org/10.14445/23488379/IJEEE-V12I8P107

Abstract:

This paper explores the unique characteristics of both active and reactive power flow in Low-Voltage (LV) microgrids under different feeder impedance conditions during the parallel operation of distributed generators. It focuses on systems with mainly resistive feeder impedance, which pose challenges in accurate reactive power sharing and harmonic compensation. To address these challenges, the concept of an Enhanced Reactive Power Droop Controller (ERPDC) is applied as a control strategy. This method is developed to improve the distribution of reactive power and effectively reduce specific harmonic distortions, particularly the fifth and seventh harmonics that arise when non-linear loads are connected. The proposed approach is tested under various operating scenarios to evaluate its performance. Detailed simulations are carried out in the MATLAB Simulink environment, and results show that ERPDC offers better harmonic suppression and improved system stability when compared to conventional techniques.

Keywords:

Droop control, Distributed generators, Power quality, Reactive power, Droop controller.

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