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Safe and Stable Operation of Power-Electronics-Dominated Power Systems
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Safe and Stable Operation of Power-Electronics-Dominated Power Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F1: Electrical Power System".

Deadline for manuscript submissions: 10 March 2026 | Viewed by 3333

Special Issue Editors

Dr. Jiapeng Li

E-Mail Website
Guest Editor
School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710048, China
Interests: protection and control of power systems
Special Issues, Collections and Topics in MDPI journals
Dr. Yonghui Liu

E-Mail Website
Guest Editor
Department of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710048, China
Interests: modeling and control of converters; renewable energy integration;VSC-HVDC
Special Issues, Collections and Topics in MDPI journals
Dr. Sunhua Huang

E-Mail Website
Guest Editor
Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
Interests: power system stability analysis and control; AD/DC microgrid control
Special Issues, Collections and Topics in MDPI journals
Dr. Yang Zhou

E-Mail Website
Guest Editor
School of Electrical & Information Engineering, Changsha University of Science and Technology, Changsha 410114, China
Interests: operation and control of hybrid AC/DC power systems; energy storage systems control; flexibility of energy systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Modern power systems are increasingly dominated by power electronics, driven by the integration of renewable energy, distributed resources, and HVDC technology. While power electronics improve flexibility and efficiency, they fundamentally alter system dynamics, posing significant stability and security challenges. Their narrow operational range leads to weak grid characteristics, making traditional protection and control strategies less effective. Furthermore, control mode switching during transience introduces new stability risks, thus requiring new analysis and control methods.

This Special Issue focuses on advancing the modeling, analysis, protection, control, and resilience of power electronics-dominated systems to ensure their safe and stable operation.

Topics of Interest include, but are not limited to, the following:

  • Modeling of power electronic devices.
  • Modeling of power-electronics-dominated (PED) power systems.
  • Operational characteristics of PED systems.
  • Operation optimization of PED systems.
  • Fault analysis of PED systems.
  • Protection principles independent of source characteristics.
  • Small-signal stability analysis of PED systems.
  • Small-signal stability control strategies of PED systems.
  • Large-disturbance stability analysis of PED systems.
  • Transient stability control of PED systems.
  • Resilience enhancement of PED systems under extreme events.

Dr. Jiapeng Li
Dr. Yonghui Liu
Dr. Sunhua Huang
Dr. Yang Zhou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • power electronics
  • modern power system
  • operation
  • protection
  • control

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Published Papers (6 papers)

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Research

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20 pages, 6667 KB  
Article
Mechanism Analysis of Wide-Band Oscillation Amplification for Long-Distance AC Transmission Lines
by Ning Li, Chen Fan, Yudun Li, Biao Jin, Xuchen Yang and Yiping Yu
Energies 2025, 18(19), 5106; https://doi.org/10.3390/en18195106 - 25 Sep 2025
Viewed by 319
Abstract
The increasing integration of renewable energy has led to power systems characterized by a high penetration of renewable energy sources (RES) and power electronic devices (PEDs). However, wide-band oscillation phenomena caused by RES grid integration have emerged and propagated through transmission networks. Notably, [...] Read more.
The increasing integration of renewable energy has led to power systems characterized by a high penetration of renewable energy sources (RES) and power electronic devices (PEDs). However, wide-band oscillation phenomena caused by RES grid integration have emerged and propagated through transmission networks. Notably, large-scale renewable energy bases located in remote areas are typically connected to the main grid via long-distance AC transmission lines. These lines exhibit an inter-harmonic amplification effect, which may exacerbate the propagation and amplification of wide-band oscillations, posing significant risks to bulk power-grid stability. This paper establishes impedance models of long-distance AC transmission lines and asynchronous motors under wide-band oscillation frequencies, and derives equivalent line parameters mathematically to reveal the oscillation amplification problem of long-distance renewable energy oscillation transmission through AC transmission lines. A transfer coefficient is defined to quantify inter-harmonic current amplification. A single-machine-load model is developed in MATLAB/Simulink to validate the proposed model. Furthermore, the influence of line parameters on oscillation amplification is analyzed, and a suppression strategy is proposed. This study provides valuable insights for the parameter design of long-distance transmission lines in renewable energy integration scenarios, as it helps mitigate potential inter-harmonic amplification risks by reducing the peak values of the transfer coefficient. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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17 pages, 2002 KB  
Article
Identification of Critical Transmission Sections Considering N-K Contingencies Under Extreme Events
by Xiongguang Zhao, Xu Ling, Mingyu Yan, Yi Dong, Mingtao He and Yirui Zhao
Energies 2025, 18(16), 4342; https://doi.org/10.3390/en18164342 - 14 Aug 2025
Viewed by 419
Abstract
Monitoring critical transmission sections is essential for ensuring the operational security of power grids. This paper proposes a systematic method to identify critical transmission sections using the maximum flow–minimum cut theorem. The approach begins by representing the power grid as an undirected graph [...] Read more.
Monitoring critical transmission sections is essential for ensuring the operational security of power grids. This paper proposes a systematic method to identify critical transmission sections using the maximum flow–minimum cut theorem. The approach begins by representing the power grid as an undirected graph and identifying its hanging nodes. The network is then partitioned into several undirected subgraphs based on identified cut points. Each subgraph is transformed into a flow network according to actual power flow data. An efficient minimum cut set search algorithm is developed to locate potential transmission sections. To assess the risk under extreme conditions, a mixed-integer optimization model is formulated to select sections that are vulnerable to overload-induced tripping during N-K line outages caused by natural disasters. Simulation results on the IEEE RTS 24-bus and IEEE 39-bus systems validate the effectiveness and applicability of the proposed method. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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14 pages, 2727 KB  
Article
Research on Power Transmission Capacity of Transmission Section for Grid-Forming Renewable Energy via AC/DC Parallel Transmission System Considering Synchronization and Frequency Stability Constraints
by Zhengnan Gao, Zengze Tu, Shaoyun Ding, Liqiang Wang, Haiyan Wu, Xiaoxiang Wei, Jiapeng Li and Yujun Li
Energies 2025, 18(15), 4202; https://doi.org/10.3390/en18154202 - 7 Aug 2025
Viewed by 507
Abstract
AC/DC parallel transmission is a critical approach for large-scale centralized transmission. Existing assessments of power transfer capability in AC/DC corridors rarely incorporate comprehensive security and stability constraints, potentially leading to overestimated results. This paper investigates a grid-forming renewable energy system integrated via AC/DC [...] Read more.
AC/DC parallel transmission is a critical approach for large-scale centralized transmission. Existing assessments of power transfer capability in AC/DC corridors rarely incorporate comprehensive security and stability constraints, potentially leading to overestimated results. This paper investigates a grid-forming renewable energy system integrated via AC/DC parallel transmission. First, the transmission section’s power transfer limit under N-1 static security constraints is determined. Subsequently, analytical conditions satisfying synchronization and frequency stability constraints are derived using the equal area criterion and frequency security indices, revealing the impacts of AC/DC power allocation and system parameters on transfer capability. Finally, by integrating static security, synchronization stability, and frequency stability constraints, an operational region for secure AC/DC power dispatch is established. Based on this region, an optimal power allocation scheme maximizing the corridor’s transfer capability is proposed. The theoretical framework and methodology enhance system transfer capacity while ensuring AC/DC parallel transmission security, with case studies validating the theory’s correctness and method’s effectiveness. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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18 pages, 1482 KB  
Article
Optimizing Power Sharing and Demand Reduction in Distributed Energy Resources for Apartments Through Tenant Incentivization
by Janak Nambiar, Samson Yu, Jag Makam and Hieu Trinh
Energies 2025, 18(15), 4073; https://doi.org/10.3390/en18154073 - 31 Jul 2025
Viewed by 492
Abstract
The increasing demand for electricity in multi-tenanted residential areas has placed unforeseen strain on sub-transformers, particularly in dense urban environments. This strain compromises overall grid performance and challenges utilities with shifting and rising peak demand periods. This study presents a novel approach to [...] Read more.
The increasing demand for electricity in multi-tenanted residential areas has placed unforeseen strain on sub-transformers, particularly in dense urban environments. This strain compromises overall grid performance and challenges utilities with shifting and rising peak demand periods. This study presents a novel approach to enhance the operation of a virtual power plant (VPP) comprising a microgrid (MG) integrated with renewable energy sources (RESs) and energy storage systems (ESSs). By employing an advanced monitoring and control system, the proposed topology enables efficient energy management and demand-side control within apartment complexes. The system supports controlled electricity distribution, reducing the likelihood of unpredictable demand spikes and alleviating stress on local infrastructure during peak periods. Additionally, the model capitalizes on the large number of tenancies to distribute electricity effectively, leveraging locally available RESs and ESSs behind the sub-transformer. The proposed research provides a systematic framework for managing electricity demand and optimizing resource utilization, contributing to grid reliability and a transition toward a more sustainable, decentralized energy system. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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17 pages, 2637 KB  
Article
Multi-Inverter Synchronization and Dynamic Power Allocation via Distributed Communication for PV Station Rapid Power Control to Enhance Power System Stability
by Mingkang Wu, Min Cheng, Jiawei Yu, Yayao Zhang, Yuanfu Zhu and Yihua Zhu
Energies 2025, 18(12), 3065; https://doi.org/10.3390/en18123065 - 10 Jun 2025
Viewed by 598
Abstract
There is increasing penetration of photovoltaic (PV) systems into modern power grids; however, existing centralized communication architectures for PV stations often suffer from high latency and poor scalability, and the synchronization and coordinated control of multi-inverter clusters at millisecond timescales remain unresolved challenges. [...] Read more.
There is increasing penetration of photovoltaic (PV) systems into modern power grids; however, existing centralized communication architectures for PV stations often suffer from high latency and poor scalability, and the synchronization and coordinated control of multi-inverter clusters at millisecond timescales remain unresolved challenges. Hence, this paper proposes a distributed communication-based framework integrating multi-inverter synchronization and dynamic power allocation for rapid power regulation in PV stations. The architecture employs decentralized control logic to achieve the real-time synchronization of inverter clusters, eliminating reliance on centralized controllers. A dynamic power allocation algorithm, embedded with adaptive droop characteristics, optimizes active power distribution across inverters while minimizing transient overshoot. Experimental validation confirms the efficacy and operational advantages of the proposed communication architecture and power allocation strategy. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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Other

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50 pages, 4484 KB  
Systematic Review
Bridging Data and Diagnostics: A Systematic Review and Case Study on Integrating Trend Monitoring and Change Point Detection for Wind Turbines
by Abu Al Hassan and Phong Ba Dao
Energies 2025, 18(19), 5166; https://doi.org/10.3390/en18195166 - 28 Sep 2025
Viewed by 448
Abstract
Wind turbines face significant operational challenges due to their complex electromechanical systems, exposure to harsh environmental conditions, and high maintenance costs. Reliable structural health monitoring and condition monitoring are therefore essential for early fault detection, minimizing downtime, and optimizing maintenance strategies. Traditional approaches [...] Read more.
Wind turbines face significant operational challenges due to their complex electromechanical systems, exposure to harsh environmental conditions, and high maintenance costs. Reliable structural health monitoring and condition monitoring are therefore essential for early fault detection, minimizing downtime, and optimizing maintenance strategies. Traditional approaches typically rely on either Trend Monitoring (TM) or Change Point Detection (CPD). TM methods track the long-term behaviour of process parameters, using statistical analysis or machine learning (ML) to identify abnormal patterns that may indicate emerging faults. In contrast, CPD techniques focus on detecting abrupt changes in time-series data, identifying shifts in mean, variance, or distribution, and providing accurate fault onset detection. While each approach has strengths, they also face limitations: TM effectively identifies fault type but lacks precision in timing, while CPD excels at locating fault occurrence but lacks detailed fault classification. This review critically examines the integration of TM and CPD methods for wind turbine diagnostics, highlighting their complementary strengths and weaknesses through an analysis of widely used TM techniques (e.g., Fast Fourier Transform, Wavelet Transform, Hilbert–Huang Transform, Empirical Mode Decomposition) and CPD methods (e.g., Bayesian Online Change Point Detection, Kullback–Leibler Divergence, Cumulative Sum). By combining both approaches, diagnostic accuracy can be enhanced, leveraging TM’s detailed fault characterization with CPD’s precise fault timing. The effectiveness of this synthesis is demonstrated in a case study on wind turbine blade fault diagnosis. Results shows that TM–CPD integration enhances early detection through coupling vibration and frequency trend analysis with robust statistical validation of fault onset. Full article
(This article belongs to the Special Issue Safe and Stable Operation of Power-Electronics-Dominated Power Systems)
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