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Advances in Urban Power Distribution System
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Advances in Urban Power Distribution System

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F2: Distributed Energy System".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 12044

Special Issue Editors

Dr. Kaiqi Sun

E-Mail Website
Guest Editor
School of Electrical Engineering, Shandong University, Jinan 250061, China
Interests: renewable energy integration; the application of HVDC and MVDC in the urban power grid; cyber security in voltage source-based converter control
Special Issues, Collections and Topics in MDPI journals
Dr. Huangqing Xiao

E-Mail Website
Guest Editor
School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China
Interests: renewable power integration; DC transmission and distribution system; DC circuit breaker
Special Issues, Collections and Topics in MDPI journals
Dr. Wei Qiu

E-Mail Website
Guest Editor
Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996, USA
Interests: grid synchronized measurement; big data analysis; cyber security of the urban power distribution system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The urban power distribution system is one of the most complex artificial systems in the world. Along with the process of urbanization in the past decade, the urban power distribution system faces many challenges in terms of expansion and operation. On the one hand, the growth rate of the power demand in the urban power distribution system has been remarkable in recent years. This is because of the continuous human migration from the countryside to the metropolis, while the average electric power consumption in the city has increased rapidly. However, on the other hand, traditional urban power generation has been replaced by town-style renewable generation or cleaner external sources to reduce greenhouse gas emissions. The unbalanced development of the generation side and load side significantly raises the probability and high impacts of power outages in the urban power distribution system. In order to maintain the sustainable development of the urban power grid, the new technologies and control strategy need to receive more attention.

This Special Issue aims to draw attention to research and review articles on the existing urban power distribution systems. The focus will be on promoting theoretical and practical studies in the control and operation of the urban power distribution system to help the application of advancing technologies and their related theory in the urban power distribution systems.

The topics of interest include but are not limited to the following:

1) Flexible operation of hybrid AC/DC urban power distribution systems.

2) Intelligent control for the reliable operation of inflexible urban power distribution systems.

3) Theory and method of a coordinated operation in urban power distribution systems with high proportional renewable energies, flexible loads, and energy storage.

4) Measurement and data-driven approaches to improve the operation quality of urban power distribution systems.

5) The application of medium- and low-voltage level DC technology in urban power distribution systems.

6) Coordination of renewable energies operation in urban power distribution systems.

Dr. Kaiqi Sun
Dr. Huangqing Xiao
Dr. Wei Qiu
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

  • urban power distribution system
  • medium-voltage direct current system
  • renewable energy integration
  • power quality
  • power electronic devices application
 

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Published Papers (5 papers)

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Editorial

Jump to: Research

4 pages, 174 KiB  
Editorial
Advances in Urban Power Distribution System
by Wei Qiu, Kaiqi Sun and Huangqing Xiao
Energies 2022, 15(19), 7329; https://doi.org/10.3390/en15197329 - 5 Oct 2022
Cited by 1 | Viewed by 1224
Abstract
The urban power distribution system is one of the most complex artificial systems in the world [...] Full article
(This article belongs to the Special Issue Advances in Urban Power Distribution System)

Research

Jump to: Editorial

20 pages, 6794 KiB  
Article
Design of Step Voltage Regulator Based on IGBT
by Min-Gu Lee, Jong-Bin Kim, Kwang-Jae Park, Ju-Won Song, Ye-Jung Kim and Jae-Eon Kim
Energies 2024, 17(3), 759; https://doi.org/10.3390/en17030759 - 5 Feb 2024
Viewed by 2259
Abstract
The introduction of distributed generation (DG) into distribution systems is expanding due to carbon neutral policies. DG with intermittent output characteristics brings frequent voltage variations in distribution systems. Generally, a step voltage regulator (SVR) is installed in the long distribution line and controls [...] Read more.
The introduction of distributed generation (DG) into distribution systems is expanding due to carbon neutral policies. DG with intermittent output characteristics brings frequent voltage variations in distribution systems. Generally, a step voltage regulator (SVR) is installed in the long distribution line and controls its voltage, which has limits of stable voltage regulations due to the slow tap-changing rate, switching losses, and short life span. To solve those problems, this paper proposes an IGBT-based SVR using zero-voltage switching. It is verified that the stable operation can be obtained through simulation by PSCAD/EMTDC 4.6 software and empirical experiments. Full article
(This article belongs to the Special Issue Advances in Urban Power Distribution System)
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16 pages, 8305 KiB  
Article
Control Method of Step Voltage Regulator on Distribution Lines with Distributed Generation
by Jong-Bin Kim, Min-Gu Lee, Jung-Hun Lee, Je-Chang Ryu, Tae-Seong Choi, Min-Su Park and Jae-Eon Kim
Energies 2022, 15(24), 9579; https://doi.org/10.3390/en15249579 - 16 Dec 2022
Cited by 4 | Viewed by 2497
Abstract
Generally, utilities regulate the voltage on the long power distribution line within a permissible range by using a step voltage regulator (SVR), which is located around the middle of the line and operates according to the condition of the line current. However, as [...] Read more.
Generally, utilities regulate the voltage on the long power distribution line within a permissible range by using a step voltage regulator (SVR), which is located around the middle of the line and operates according to the condition of the line current. However, as large-scale distributed generations (DG’s) are interconnected into distribution lines, it is difficult to maintain the line voltage properly owing to bi-directional power flow or reverse power flow. Therefore, this paper proposes a novel SVR tap-changing algorithm to solve the problem, considering line load conditions and reverse power flow. Its validity is verified through the PSCAD/EMTDC software tool and simulations. Full article
(This article belongs to the Special Issue Advances in Urban Power Distribution System)
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17 pages, 752 KiB  
Article
Wind Power Generation Forecast Based on Multi-Step Informer Network
by Xiaohan Huang and Aihua Jiang
Energies 2022, 15(18), 6642; https://doi.org/10.3390/en15186642 - 11 Sep 2022
Cited by 29 | Viewed by 3646
Abstract
Accurate forecast results of medium and long-term wind power quantity can provide an important basis for power distribution plans, energy storage allocation plans and medium and long-term power generation plans after wind power integration. However, there are still some problems such as low [...] Read more.
Accurate forecast results of medium and long-term wind power quantity can provide an important basis for power distribution plans, energy storage allocation plans and medium and long-term power generation plans after wind power integration. However, there are still some problems such as low forecast accuracy and a low degree of integration for wind power physical processes. In this study, the Multi-step Informer network is proposed to add meteorological parameters to wind power generation forecast and make network interpretable. The Multi-step Informer network uses Informer to obtain the initial training model according to the historical data of wind power generation, introduces the Informer model of wind speed and air pressure training involved in the dynamic pressure model, and compares the historical data of wind power generation to obtain model modification, so as to further improve the forecast accuracy of Multi-step Informer network. The backpropagation process of the pre-trained Informer should be truncated to avoid being influenced by the pre-trained Informer during training of the Multi-step Informer network, which also guarantees the interpretability of the running results of the network. The Multi-step Informer network has the advantage of error correction of wind power generation, which improves the forecast accuracy. From the calculation results of the root mean square error, Multi-step Informer network improves forecast accuracy by 29% compared to Informer network. Full article
(This article belongs to the Special Issue Advances in Urban Power Distribution System)
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22 pages, 4155 KiB  
Article
A Game-Theoretic Approach of Optimized Operation of AC/DC Hybrid Microgrid Clusters
by Xuewei Pan, Fan Yang, Peiwen Ma, Yijin Xing, Jinye Zhang and Lingling Cao
Energies 2022, 15(15), 5537; https://doi.org/10.3390/en15155537 - 30 Jul 2022
Cited by 7 | Viewed by 1459
Abstract
To maximize the benefits of microgrid clusters, a general model and analysis method for studying the optimized operation of AC/DC microgrid clusters using non-cooperative games is proposed. This paper first establishes the optimized objective function of an AC/DC microgrid for economic operations. Based [...] Read more.
To maximize the benefits of microgrid clusters, a general model and analysis method for studying the optimized operation of AC/DC microgrid clusters using non-cooperative games is proposed. This paper first establishes the optimized objective function of an AC/DC microgrid for economic operations. Based on the supply and demand theory, the dynamic adjustment mechanism of electricity price is introduced into microgrid clusters, and a game model for the optimal operation of multiple microgrids is established. The Nash equilibrium solution of the established model is obtained by iterative search algorithm, and the convergence of the Nash equilibrium solution is also proven. Finally, the validity and economy of the proposed model are verified by the actual case. Full article
(This article belongs to the Special Issue Advances in Urban Power Distribution System)
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