Advanced Protections for Power Systems with High Penetration of Inverter-Based Resources

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: 15 August 2026 | Viewed by 1253

Special Issue Editor


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Guest Editor
Electrical Engineering, Universidad Carlos III de Madrid, Madrid, Spain
Interests: power system protection; transformers; power systems analysis; electrical power engineering; electric machines

Special Issue Information

Dear Colleagues,

This Special Issue is focused on advanced protections for power systems with a high penetration of inverter-based resources (IBRs). Short-circuit contributions from IBRs are completely different from the traditional contributions from synchronous generation, and this fact can have an important negative impact on the behavior of the power transmission system protections. Furthermore, the short-circuit contributions from IBRs are dependent on the control strategy of inverters, whose means of performing the simulations are not easily available. On the other hand, power system dynamics is also negatively affected due to the low inertia feature of these systems; consequently, special protection systems and/or improved control strategies can potentially be necessary to avoid possible general black-outs. Thus, the scope of this Special Issue covers the design, analysis, and testing of protections for these systems, as well as the modeling, testing, innovations, and grid-code requirements for grid-following and grid-forming inverters during short-circuits and during major disturbances in the transmission grid. These topics have been analyzed during recent years, and this Special Issue has the explicit purpose of offering an updated perspective on them. Contributions are specially welcomed from manufacturers of protective relays or grid-connected inverters, developers of power system analysis software, experts in the dynamic and transient analysis of electric power systems from electric utilities or from engineering consulting firms, developers of grid-codes, and academic researchers. 

Dr. Elmer Sorrentino
Guest Editor

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Keywords

  • advanced power system protections
  • inverter-based resources
  • high penetration of renewables
  • short-circuit currents from grid-connected inverters
  • transmission line protections
  • control of inverters
  • reactive-current injection from inverters
  • negative-sequence current injection from inverters
  • simulation of grid-connected inverters
  • short-circuit tests of grid-connected inverters
  • power system dynamics
  • power system transients
  • low-inertia power systems
  • special protection systems
  • remedial action schemes
  • general black-outs
  • grid-code requirements
  • grid-following inverters
  • grid-forming inverters

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Published Papers (1 paper)

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Research

18 pages, 5051 KB  
Article
Synchronization Instability Suppression of Renewable Energy Converters Under DC-Side Commutation Disturbances
by Xiaolong Xiao, Wenqiang Xie, Ziran Guo, Xiaoxing Lu and Shukang Lv
Electronics 2026, 15(1), 3; https://doi.org/10.3390/electronics15010003 - 19 Dec 2025
Viewed by 357
Abstract
With the ongoing energy transition, large-scale integration of inverter-based renewable generation at DC sending ends has significantly weakened grid strength and increased vulnerability to disturbances from the DC receiving end. These disturbances may trigger severe transient voltage variations and synchronization instability of renewable [...] Read more.
With the ongoing energy transition, large-scale integration of inverter-based renewable generation at DC sending ends has significantly weakened grid strength and increased vulnerability to disturbances from the DC receiving end. These disturbances may trigger severe transient voltage variations and synchronization instability of renewable energy converters, especially under weak-grid conditions where conventional fault ride-through schemes become ineffective. To address this challenge, this paper establishes a mathematical model of a high-renewable-penetrated sending-end system with DC transmission and analytically derives the converter stability boundaries under different grid strengths and fault severities. Based on the identified stability region, a virtual power-angle increment feedback control strategy is proposed to suppress transient instability and mitigate voltage impacts. The effectiveness and practical feasibility of the proposed method are validated through Simulink simulations and RT-LAB hardware-in-the-loop experiments. The results demonstrate that the proposed approach enhances synchronization robustness and provides an effective solution for secure power delivery in future renewable-dominated systems. Full article
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