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Advanced Control and Coordinated Optimization of Distributed Power Systems
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Advanced Control and Coordinated Optimization of Distributed Power Systems

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: 25 June 2026 | Viewed by 2250

Special Issue Editors

Dr. Guanguan Zhang

E-Mail Website
Guest Editor
School of Control Science and Engineering, Shandong University, Jinan 250061, China
Interests: control of grid-connected power converters; electric vehicle charging
Prof. Dr. Cheng Fu

E-Mail Website
Guest Editor
School of Automation, Qingdao University, Qingdao 266071, China
Interests: advanced control of power converters; nonlinear control and intelligent systems

Special Issue Information

Dear Colleagues, 

In spite of the flourishing development of distributed energy resources (DERs), such as PV, wind, and energy storage systems, as well as electric vehicles (EVs), the distribution grid remains a low-inertia and relatively weak grid. Power quality problems, such as voltage and frequency fluctuations and issues with harmonics and resonance, are becoming more prevalent, inducing instability in these power systems. On one hand, grid-connected power converters, which are the elementary units for DERs, face a lot of challenges as a result of these power quality problems, and adaptive and robust control methods are required to ensure their safe and secure operation. On the other hand, the characteristics of different DER units are distinct; systems’ operation performance and efficiency decrease when they are controlled independently, and a method for coordinated control is needed.

This Special Issue aims to present and disseminate the most recent advances related to the control, stability analysis, and coordinated optimization of DERs. The topics of interest include, but are not limited to, the following research areas:

(1) Adaptive and robust control of DER power converters.

(2)  Advanced stabilization control of high-penetration power converters.

(3) Enhanced power quality control in distributed power systems.

(4) Advanced grid-forming control methods for use in power converters for DERs.

Dr. Guanguan Zhang
Prof. Dr. Cheng Fu
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 250 words) can be sent to the Editorial Office for assessment.

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

  • adaptative and robust control
  • finite time control
  • power quality
  • stability analysis
  • grid-forming

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Published Papers (4 papers)

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Research

24 pages, 1454 KB  
Article
Four-Motor Servo System Command-Filtered Synchronous Control Based on Feedback Channel Event-Triggered Mechanism
by Zenghao Li, Fenglong Sun, Baofang Wang and Mingjie Cai
Energies 2026, 19(11), 2567; https://doi.org/10.3390/en19112567 - 26 May 2026
Abstract
To reduce the communication load and improve the operational efficiency of multi-motor-driving systems, this paper proposes a feedback channel event-triggered fixed-time command-filtered synchronous control strategy. By adaptively determining the feedback information update instants through monitoring motor speed variations, the proposed method significantly reduces [...] Read more.
To reduce the communication load and improve the operational efficiency of multi-motor-driving systems, this paper proposes a feedback channel event-triggered fixed-time command-filtered synchronous control strategy. By adaptively determining the feedback information update instants through monitoring motor speed variations, the proposed method significantly reduces communication frequency while maintaining high-precision tracking and synchronization performance, thereby lowering communication energy consumption. Meanwhile, the improvement in multi-motor synchronization performance effectively avoids mechanical impacts and additional energy losses caused by speed mismatch, further enhancing electromechanical energy conversion efficiency. Based on fixed-time inversion and command-filtered techniques, system states are driven to converge within a finite time, and a compensation mechanism is introduced to eliminate filtering errors. Theoretical analysis demonstrates that the resulting closed-loop system achieves practical fixed-time stability without exhibiting Zeno behavior. The experimental results show that the triggering ratio of the system is 25.2964%, significantly reducing communication time and saving system resources. Based on this, the proposed method not only ensures the tracking accuracy and synchronization performance of the system but also effectively reduces communication burden and energy consumption, thereby improving the overall system efficiency. Full article
(This article belongs to the Special Issue Advanced Control and Coordinated Optimization of Distributed Power Systems)
22 pages, 2594 KB  
Article
Low-Frequency Oscillation Suppression Strategy for Grid-Forming PMSG-Based Wind Turbines Using Novel Exponential Sliding-Mode Control
by Minghao Shao, Yongkai Jiang, Yujia Han and Chun Wei
Energies 2026, 19(9), 2185; https://doi.org/10.3390/en19092185 - 30 Apr 2026
Viewed by 260
Abstract
With the increasing integration of wind power into the grid, power systems are exhibiting characteristics of low inertia and low short-circuit ratio. Virtual synchronous generator (VSG) control technology, which emulates the operational characteristics of synchronous generators, can effectively provide voltage and inertia support [...] Read more.
With the increasing integration of wind power into the grid, power systems are exhibiting characteristics of low inertia and low short-circuit ratio. Virtual synchronous generator (VSG) control technology, which emulates the operational characteristics of synchronous generators, can effectively provide voltage and inertia support to the grid. However, its application in grid-connected permanent magnet synchronous generator (PMSG)-based wind turbines is prone to low-frequency oscillation issues. To address this, this paper first establishes a damping torque model for the grid-forming PMSG. The damping torque method is employed to quantify the damping characteristics of the system in the low-frequency band, while analyzing the influence of various torque components on the system’s damping composition and low-frequency oscillations. Based on this, a machine-side current loop controller incorporating a novel exponential sliding-mode control (NESMC) and a high gain disturbance observer (HGDO) is proposed. This controller aims to reduce the machine-side negative damping effect, thereby effectively suppressing low-frequency oscillations in the system. Finally, a simulation model is built in MATLAB/Simulink to verify the correctness of the damping torque analysis and the effectiveness of the proposed control method. Full article
(This article belongs to the Special Issue Advanced Control and Coordinated Optimization of Distributed Power Systems)
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14 pages, 2268 KB  
Article
Finite-Time Backstepping Control for Stand-Alone Three-Phase Voltage-Source Inverters Based on Disturbance Observer
by Shiwei Wu, Dejun Pan, Guanguan Zhang, Le Chang, Xiaoling Wang and Cheng Fu
Energies 2026, 19(3), 781; https://doi.org/10.3390/en19030781 - 2 Feb 2026
Viewed by 399
Abstract
For the three-phase voltage-source inverters (VSIs), load disturbances and parameter uncertainties degrade the quality of output voltages, potentially leading to system instability. To improve steady-state precision and disturbance rejection, this paper suggests a finite-time backstepping control (FTBC) strategy that incorporates a fixed-time sliding [...] Read more.
For the three-phase voltage-source inverters (VSIs), load disturbances and parameter uncertainties degrade the quality of output voltages, potentially leading to system instability. To improve steady-state precision and disturbance rejection, this paper suggests a finite-time backstepping control (FTBC) strategy that incorporates a fixed-time sliding mode disturbance observer (FTSMDO). Firstly, this paper establishes a new dynamic model of the three-phase VSI considering load disturbances, parameter uncertainty and cross-coupling effect. Subsequently, a fixed-time disturbance observer is then developed to precisely estimate the uncertain disturbances, with its convergence time not reliant on the system’s initial conditions. Concurrently, a finite-time differentiator is developed to achieve the desired signals, thereby sidestepping the “explosion of complexity” problem. A finite-time controller is constructed to obtain stable three-phase output voltages. Theoretical and test analysis demonstrate the proposed method is effective. Compared with the PI control, the proposed strategy improves dynamic performance and enhances disturbance-rejection capability under time-varying load disturbances. Full article
(This article belongs to the Special Issue Advanced Control and Coordinated Optimization of Distributed Power Systems)
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12 pages, 13726 KB  
Article
A High-Efficiency Single-Phase AC-AC Solid-State Transformer Without Electrolytic Capacitors
by Hui Wang, Xiang Yan and Xiaochao Hou
Energies 2025, 18(24), 6414; https://doi.org/10.3390/en18246414 - 8 Dec 2025
Viewed by 935
Abstract
This paper proposes a single-phase AC-AC solid-state transformer (SST) that eliminates bulky energy storage components. The proposed matrix-type structure comprises a line-frequency (LF) rectifier, a half-bridge (HB) LLC resonant converter, a buck–boost converter, and an LF inverter. The HB LLC resonant converter not [...] Read more.
This paper proposes a single-phase AC-AC solid-state transformer (SST) that eliminates bulky energy storage components. The proposed matrix-type structure comprises a line-frequency (LF) rectifier, a half-bridge (HB) LLC resonant converter, a buck–boost converter, and an LF inverter. The HB LLC resonant converter not only achieves high efficiency at unity voltage gain but also provides high-frequency (HF) isolation as a DC transformer (DCX). Meanwhile, the buck–boost converter ensures precise voltage regulation. The replacement of traditional DC-link electrolytic capacitors with small film capacitors effectively suppresses the second-harmonic power ripple, leading to a significant improvement in both power density and operational reliability. Experimental results from a 1 kW prototype demonstrate high-quality sinusoidal input and output, a wide range of zero-voltage switching (ZVS) operations, and stable output voltage control. Full article
(This article belongs to the Special Issue Advanced Control and Coordinated Optimization of Distributed Power Systems)
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