Progressing Towards Sustainability: Power-Sharing Control Topologies for Microgrids with Parallel-Connected Inverters for Grid Stability

Mubashir Hayat Khan, Shamsul Aizam Zulkifli (), Nedim Tutkun () and Mehmet Şimşir
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Mubashir Hayat Khan: Department of Electrical Engineering, Faculty of Engineering and Technology, University of Poonch Rawalakot AJ&K, Rawalakot 12350, Pakistan
Shamsul Aizam Zulkifli: Department of Electrical Engineering, Faculty of Electrical Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Malaysia
Nedim Tutkun: Department of Electrical and Electronics Engineering, Istanbul Ticaret University, 34840 Istanbul, Türkiye
Mehmet Şimşir: Department of Electrical and Electronics Engineering, Faculty of Engineering, Karabük University, 78050 Karabük, Türkiye

Sustainability, 2025, vol. 17, issue 10, 1-25

Abstract: Parallel-connected inverters play a crucial role in the grid interface of distributed generation. The world is now moving towards sustainability, while shifting from traditional power systems to renewable energies. With the emergence of microgrids as an alternative for an uninterruptable power supply, there are significant challenges in terms of control strategies. Ensuring stability and reliability in electrical systems amidst the integration of diverse energy sources with varying power ratings into a distribution network presents the need for advanced control techniques. These techniques must effectively maintain power system quality, stability, and reliability when operating in microgrids with parallel-connected inverters. Achieving accurate power sharing under different operating conditions, compensating for voltage and frequency deviations, and maintaining a well-controlled microgrid system are essential objectives. This paper focuses on the categorization of droop-based control with multi-loop insertion approaches. Additionally, it provides a comprehensive analysis of inverter-based microgrid control techniques, emphasizing power-sharing accuracy in various conditions, and presents a detailed comparison of different control strategies.

Keywords: adaptive virtual impedance; distribution generation; power sharing; voltage compensation; finite control set–model predictive control (FCS-MPC) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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