Applications of Advanced Control in Electrical Systems

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

Deadline for manuscript submissions: 15 February 2025 | Viewed by 1983

Special Issue Editors


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Guest Editor
Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150000, China
Interests: sliding mode control; nonlinear control; observation methods and their applications in power electronic systems
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Control Science and Engineering, Harbin Institute of Technology, Weihai 264209, China
Interests: renewable energy systems; motor drive; grid-connected inverters control; PMSMs; nonlinear control systems; intelligent systems
Special Issues, Collections and Topics in MDPI journals

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Guest Editor

Special Issue Information

Dear Colleagues,

Electrical systems refer to a network or configuration of electrical components and devices designed to generate, transmit, distribute, and utilize electrical power. The field of electrical engineering is undergoing a transformative evolution driven by the integration of advanced control strategies. The study of electrical system control is a cornerstone of modern electrical engineering, with profound implications for the reliability, efficiency, and sustainability of power systems. It addresses the complex challenges of managing dynamic and interconnected power networks, integrating renewable energy sources, and ensuring the safe and economical operation of electrical infrastructure. As the global demand for electricity continues to grow and the energy landscape evolves, the importance of advanced control strategies and technologies in shaping the future of electrical systems cannot be overstated.

This Special Issue aims to explore the transformative impact of advanced control technologies on electrical systems. The focus is on showcasing the latest research, innovative methodologies, and practical implementations related to advanced control methods that enhance the reliability, efficiency, robustness, and other performance of electrical systems.

We encourage all researchers working in this area to submit papers to this Special Issue. Topics of interest include, but are not limited to, the following:

  • Control algorithms for maintaining grid stability;
  • Control strategies for addressing the intermittency and variability of renewable energy sources;
  • Control techniques for ensuring the stability of power conversion systems;
  • Control mechanisms for integrating EVs and energy storage systems into the grid;
  • Control methods for improving the transmission efficiency and dynamic response in motor drive systems;
  • Innovative control approaches, such as sliding mode control, model predictive control, adaptive control, and intelligent control, and their applications in electrical systems.

Dr. Xiaoning Shen
Dr. Xinpo Lin
Prof. Dr. Jianxing Liu
Prof. Dr. Jose Ignacio Leon Galvan
Guest Editors

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Keywords

  • grid stability
  • renewable integration
  • power conversion
  • electric vehicles
  • advanced control
  • intelligent control

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Published Papers (2 papers)

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Research

22 pages, 14967 KiB  
Article
Research on Sub-Module Fluctuating Power Decoupling Strategy for Modular Multilevel Converter-Based Medium-Voltage Motor Drive System with Wide Speed Range
by Yanfei You, Kaikai Shao, Xintao Fan, Minli Yu, Xinpo Lin, Lei Qi and Jiaxun Teng
Electronics 2024, 13(21), 4268; https://doi.org/10.3390/electronics13214268 - 30 Oct 2024
Viewed by 705
Abstract
There is a problem of excessively large sub-module capacitance in modular multilevel converter (MMC) applications for medium-voltage motor drive systems, which is particularly noticeable during the low-speed operation of the motor. This paper proposes a low-capacitance MMC (LC-MMC) motor drive system based on [...] Read more.
There is a problem of excessively large sub-module capacitance in modular multilevel converter (MMC) applications for medium-voltage motor drive systems, which is particularly noticeable during the low-speed operation of the motor. This paper proposes a low-capacitance MMC (LC-MMC) motor drive system based on lateral sub-module interconnection, achieving capacitance lightweighting across the wide speed range of the motor. The LC-MMC is based on the three-phase symmetrical fluctuating current input of the sub-modules in the interconnection channel, achieving their mutual cancellation, thus significantly reducing the sub-module capacitance size. This paper starts from the traditional MMC motor drive system and analyzes its specific requirements for sub-module capacitance. Then, it provides a detailed description of the LC-MMC scheme for achieving capacitance lightweighting across the wide speed range of the motor, and the two MMC motor drive systems are compared and evaluated. The evaluation results show that the volume of the LC-MMC is reduced by nearly 70% compared to a traditional MMC. Finally, the LC-MMC scheme is simulated and experimentally verified. Full article
(This article belongs to the Special Issue Applications of Advanced Control in Electrical Systems)
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19 pages, 10743 KiB  
Article
Research on Asymmetrical Operation of Multilevel Converter-Type Solid-State Transformers Based on High-Frequency Link Interconnection
by Yanfei You, Minli Yu, Xintao Fan, Lei Qi and Jiaxun Teng
Electronics 2024, 13(20), 4043; https://doi.org/10.3390/electronics13204043 - 14 Oct 2024
Viewed by 838
Abstract
The large size of the sub-module (SM) capacitor is a typical problem in traditional modular multilevel converter-type solid-state transformers (MMC-SSTs). The MMC-SST based on high-frequency link interconnection is an effective solution for achieving lightweight capacitance. This structure can help to eliminate the symmetric [...] Read more.
The large size of the sub-module (SM) capacitor is a typical problem in traditional modular multilevel converter-type solid-state transformers (MMC-SSTs). The MMC-SST based on high-frequency link interconnection is an effective solution for achieving lightweight capacitance. This structure can help to eliminate the symmetric SM fluctuating power, thereby reducing the SM capacitance. In a three-phase interconnected MMC-SST with low capacitance, potential risks may arise during transient processes, especially in cases of three-phase voltage asymmetry, such as large fluctuations in the SM voltage and unstable DC bus voltage. Aiming to solve this problem, this article re-analyzes the internal power characteristics of the MMC-SST under asymmetric operation and re-derives the SM capacitance constraint suitable for different degrees of three-phase voltage asymmetry. The new SM capacitance constraint enhances the asymmetric voltage ride-through capability of the MMC-SST. The new capacitance constraint is higher than that in symmetric operation, but it still has significant advantages in capacitance compared with the traditional MMC-SST. Full article
(This article belongs to the Special Issue Applications of Advanced Control in Electrical Systems)
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