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Optimal Reliability-Oriented Techniques in Power-Electronic-Based Smart Grids

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A1: Smart Grids and Microgrids".

Deadline for manuscript submissions: 5 September 2025 | Viewed by 254

Special Issue Editors

School of Automation, Northwestern Polytechnical University, Xi'an 710072, China
Interests: smart microgrid; renewable energy generation system; fault-tolerant control; energy storage system; prognostics and health management (PHM)
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Guest Editor
School of Energy and Electrical Engineering, Chang'an University, Xi'an 710018, China
Interests: lithium-ion battery energy storage and applications; electric vehicle power conversion technology; transportation and energy integration technology
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Guest Editor
State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Interests: stability and control of HVDC system; new energy grid-connected technology

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Guest Editor
School of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Interests: power system protection and control; digital twin; renewable energy control

Special Issue Information

Dear Colleagues,

Power electronic converters are widely used in renewable power systems, electric vehicles, and energy storage systems, transiting the traditional grid system to integrated electronic and intelligent power systems, i.e., power electronic-based smart grids. Meanwhile, operating condition issues (e.g., renewable energy resources, various load missions, environment affection) and reliability issues (e.g., power device health management and system-level reliability) are challenging the safe operation of the power electronic-based smart grids. In contrast, the reliability-oriented techniques for the latest smart grid control are flexible and diverse, e.g., system-level energy management and converter-level operation optimization, affecting system reliability profoundly. Therefore, reliability-oriented management techniques for smart grids can be used to intelligently monitor, predict, and manage the health status, realizing the autonomous reliability optimization of the smart grid. This Special Issue will focus on optimal reliability-oriented techniques for improving power quality and system reliability through the reliability management of power electronic-based grids, which aims to safeguard and improve the reliability of the smart grid and lay the foundation for future reliable power electronic-based power grids.

Additionally, please visit the following link and ensure that the summary aligns with the aims and scope of Energies: https://www.mdpi.com/journal/energies/about.

Dr. Wenjie Liu
Dr. Xinrong Huang
Prof. Dr. Chunyi Guo
Dr. Liang Ji
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

  • advanced control of smart grids
  • reliability enhancement in microgrids
  • grid interaction for microgrids
  • fault diagnosis and protection
  • energy management
  • cybersecurity

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Published Papers (1 paper)

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Research

17 pages, 5677 KiB  
Article
Volt/Var Control of Electronic Distribution Network Based on Hierarchical Coordination
by Zijie Huang, Kun Yu, Xingying Chen, Bu Xue, Liangxi Guo, Jiarou Li and Xiaolan Yang
Energies 2025, 18(9), 2185; https://doi.org/10.3390/en18092185 - 24 Apr 2025
Viewed by 191
Abstract
With the increasing penetration of high-proportion renewable energy sources and large-scale integration of power electronic devices, distribution networks are evolving towards power-electronized systems. The integration of high-proportion renewable energy introduces challenges such as bidirectional power flow and voltage violations. Unlike traditional voltage regulation [...] Read more.
With the increasing penetration of high-proportion renewable energy sources and large-scale integration of power electronic devices, distribution networks are evolving towards power-electronized systems. The integration of high-proportion renewable energy introduces challenges such as bidirectional power flow and voltage violations. Unlike traditional voltage regulation devices with slow and discrete adjustment characteristics, power electronic devices can continuously and rapidly respond to voltage fluctuations in distribution networks. However, the integration of power electronic devices alters the operational paradigm of distribution networks, necessitating adaptive voltage-reactive power control methods tailored to the regulation characteristics of both power electronic devices and discrete equipment. To fully exploit the real-time regulation capabilities of power electronic devices, this paper established a hierarchical coordinated control model for power-electronized distribution networks to achieve optimal voltage-reactive power control. A three-stage hierarchical coordinated control architecture is proposed based on the distinct response speeds of different devices. A variable-slope linear droop control method based on voltage boundary parameter optimization is employed for real-time adjustment of soft open point (SOP) and inverter outputs. To address uncertainties in PV generation and load demand, a rolling optimization strategy is implemented for centralized control, supplemented by probabilistic modeling to generate multiple representative scenarios for hierarchical coordinated control. Case studies demonstrate optimized operational results across centralized and local control stages, with comparative analyses against existing voltage-reactive power control methods confirming the superiority of the proposed hierarchical coordinated control framework. Full article
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