Advanced Power Generation and Conversion Systems

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

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 12545

Special Issue Editors


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Guest Editor
Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Interests: energy sources; energy market; power systems regulation; distributed generation; AC; DC and hybrid power systems; microgrids; smart grids and multi-vectors grids; virtual or synthetic inertia; energy communities; grids planning and real-time optimized management; storage systems; converter interface design; control and experimental validation; energy performance analysis; grids; grids and relative components failure analysis; devices and logics experimental tests also by hardware in the loop technologies; medium voltage DC smart protections design and characterization; grids systems reliability model and evaluation; software design tool and implementation; Python-based applications; production and load forecasting
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Interests: distributed power generation; power grids; renewable energy sources; power engineering computing; smart power grids ; electricity supply industry; energy management systems; energy storage; hybrid power systems; load forecasting; photovoltaic power systems; power generation control; power generation economics; power generation reliability; power system reliability; reviews; statistical analysis; ageing; decentralized control; demand side management; demography; distributed control; failure analysis; fault diagnosis; energy poverty
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Interests: distributed generation; energy management; microgrids optimization; power electronics; electrical power engineering; photovoltaics; smart grid; power conversion; energy; electrical engineering; renewable energy technologies; renewable energy; power engineering; power generation; power system; energy efficiency; matlab simulation; electronic engineering; power systems analysis; power production; electricity; energy storage; industrial engineering; electrical; power systems; photovoltaic systems; solar inverters; wind; energy conversion; electrics; power systems simulation; power quality; microgrids; power converters; power systems modelling; power system stability; electric vehicles; grid; solar cells; e-government; grid integration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the last few years, power generation has changed due to national and international climate and sustainability targets, economical constraints and the diffusion of distributed renewable energy sources.

In the present context it is mandatory not only to identify available resources in the short term but also to implement adequate planning, management, and control actions to satisfy energy needs in the medium- and long-term.

Techniques able to improve power generators’ performances, also guaranteeing grid stability, reliability and resilience, could constitute key solutions to current and future service continuity and emission reduction.

Furthermore, the adoption of advanced materials, conversion technologies and devices could permit the decrease of losses in AC, DC and hybrid AC/DC power system improvement.

The main aim of this Special Issue is to obtain a complete overview of advanced materials, devices, technologies and control logics to power generation and conversion systems.

The submission of technical works is welcome and particular attention is dedicated to experimentally validated case studies and developed prototype and demonstrators. The purpose of this Issue consists of providing relevant information to facilitate the sharing of sharing among academic and industrial stakeholders, not neglecting social impacts and roles.

The topics of interest include, but are not limited to:

  • H2-based generation;
  • On-shore and off-shore wind generation;
  • Hydropower;
  • Multi-vector generation;
  • Cogeneration;
  • Tri-generation;
  • Biomass;
  • V2G;
  • Storage (Li-ion, SuperCap, Flow batteries, hybrid);
  • Nuclear generation;
  • Advanced materials for power generation;
  • HVDC systems;
  • Statcom systems;
  • Solid State Transformers;
  • Grid-forming inverters;
  • Conversion interface;
  • Advances materials and solution for power converters;
  • Planning, management methodology;
  • Control logics.

Dr. Giovanna Adinolfi
Dr. Maria Valenti
Prof. Dr. Giorgio Graditi
Guest Editors

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Keywords

  • advanced generation
  • advanced connection and interface devices
  • power converters for advanced generation
  • innovative control strategies
  • hybrid storage systems

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Related Special Issue

Published Papers (6 papers)

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Research

21 pages, 5813 KiB  
Article
A Novel Direct Current Circuit Breaker with a Gradually Increasing Counter-Current
by Jinchao Chen, Siyuan Liu, Jingyong Jin, Yifan Chen, Zhiyuan Liu and Yingsan Geng
Electronics 2024, 13(10), 1883; https://doi.org/10.3390/electronics13101883 - 11 May 2024
Cited by 1 | Viewed by 830
Abstract
A reliable and cost-effective mechanical direct current circuit breaker (DCCB) is a promising solution for DC interruption. However, the typical mechanical DCCB has difficulty in interrupting a rated current, because the high oscillating current superimposed on the rated current generates a steep current [...] Read more.
A reliable and cost-effective mechanical direct current circuit breaker (DCCB) is a promising solution for DC interruption. However, the typical mechanical DCCB has difficulty in interrupting a rated current, because the high oscillating current superimposed on the rated current generates a steep current slope at current zero-crossing (CZC) points, which makes it difficult for the vacuum interrupter to extinguish the arc. The objective of this paper is to present a novel DCCB topology with a gradually increasing counter-current. It utilizes a full-controlled converter, a semi-controlled full bridge, and an LC oscillation branch to generate a gradually increasing counter-current, which is superimposed on any fault current and generates a smooth current slope at CZC points. The proposed DCCB topology is modeled with PSCAD, and the current slope and the initial transient interruption voltage (ITIV) at CZC are analyzed and compared with the typical mechanical DCCB. The results indicate that the current slope at CZC decreases by 57–84% in full-range current interruptions, and the ITIV can be reduced by the same extent. Additionally, the performance of the proposed DCCB is evaluated in a four-terminal HVDC system. A cost and performance comparison is conducted among the main topologies. The obtained results show that the proposed DCCB is a reliable solution for the multi-terminal HVDC system. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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22 pages, 5631 KiB  
Article
Innovative Method for Reliability Assessment of Power Systems: From Components Modeling to Key Indicators Evaluation
by Giovanna Adinolfi, Roberto Ciavarella, Giorgio Graditi, Antonio Ricca and Maria Valenti
Electronics 2024, 13(2), 275; https://doi.org/10.3390/electronics13020275 - 8 Jan 2024
Viewed by 2055
Abstract
Power systems comprise different electrical, electronic, electromechanical and electrochemical components. Adequacy, security, resilience and reliability represent essential requirements for grids functioning mode. The evaluation of such aspects can constitute a delicate task in the presence of heterogeneous components. Focusing on reliability assessment, several [...] Read more.
Power systems comprise different electrical, electronic, electromechanical and electrochemical components. Adequacy, security, resilience and reliability represent essential requirements for grids functioning mode. The evaluation of such aspects can constitute a delicate task in the presence of heterogeneous components. Focusing on reliability assessment, several Reliability Prediction Models are available. They are suitably applied according to the type of component under evaluation. The lack of homogeneity of these models forbids the comparison of performance and identification of unreliable systems and grid section. This paper aims to face the mentioned issue proposing a unique reliability assessment methodology able to characterize different equipment connected to radial/meshed/ring grids and subjected to different stressing and ageing factors. It is customized for electrical lines, transformers, circuit breakers, converters and renewables plants. Component and systemic key indices are calculated. Furthermore, a novel “load feeding reliability“ indicator is evaluated for providing information about the supply reliability of a specific load. This index is meaningful for the identification of unreliable grids, microgrids and systems. Such an approach can contribute to improve power systems design, planning and control. The proposed method is integrated in a software application implemented for grid reliability assessment. The obtained results are reported for an urban grid including an underground transportation area. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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18 pages, 8531 KiB  
Article
Are Commercial EV Chargers Ready to Aid with Household Power Consumption?
by Leila Shams Ashkezari, Marco Succetti, Rémi Jabœuf, Paolo Tosco and Morris Brenna
Electronics 2023, 12(9), 2065; https://doi.org/10.3390/electronics12092065 - 29 Apr 2023
Cited by 4 | Viewed by 1509
Abstract
The transportation industry now accounts for approximately a quarter of worldwide energy-related direct CO2 emissions, and governments all around the globe have committed to converting their fossil-fuel vehicles to zero-emission ones by adopting electric vehicles. Current electric vehicles (EV) can store approximately [...] Read more.
The transportation industry now accounts for approximately a quarter of worldwide energy-related direct CO2 emissions, and governments all around the globe have committed to converting their fossil-fuel vehicles to zero-emission ones by adopting electric vehicles. Current electric vehicles (EV) can store approximately 18 to 100 kWh of energy, which may be employed not only for commuting but also for other purposes such as delivering energy to households (V2H) or buildings (V2B), as well as offering ancillary services to the power grid (V2G). In this study, a real test setting including a trending bidirectional charger, an EV, a PV simulator, and household appliances are utilized to evaluate the performance of various V2H components and to learn about the concerns that may arise during V2H operation. The results of the tests on the bidirectional EV charger are presented in this paper. Although the results of the tests on the charger installed in the house are not satisfactory and consistent to the project’s goal, they are released in order to aid future studies in better understanding the true challenges of commercial bidirectional chargers. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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16 pages, 3500 KiB  
Article
Wavelet Analysis to Detect Ground Faults in Electrical Power Systems with Full Penetration of Converter Interface Generation
by Luis Santiago Azuara Grande, Ricardo Granizo and Santiago Arnaltes
Electronics 2023, 12(5), 1085; https://doi.org/10.3390/electronics12051085 - 22 Feb 2023
Cited by 6 | Viewed by 2638
Abstract
The requirements for the increased penetration of renewable energy sources in electrical power systems have led to a dominance of power electronic interfaces. As a result, short-circuit currents have been reduced by the thermal limitations of power electronics, leading to problems associated with [...] Read more.
The requirements for the increased penetration of renewable energy sources in electrical power systems have led to a dominance of power electronic interfaces. As a result, short-circuit currents have been reduced by the thermal limitations of power electronics, leading to problems associated with the sensitivity, selectivity, and reliability of protective relays. Although many solutions can be found in the literature, these depend on communications and are not reliable in all grid topologies or under different types of electrical fault. Hence, in this paper, the analysis of ground fault currents and voltages using a wavelet transform in combination with a new algorithm not only detects such ground faults but also allows them to be cleared quickly and selectively in scenarios with low fault current contribution due to a full penetration converter-interface-based generation. To verify and validate the proposed protection system, different ground faults are simulated using an arc ground fault model in a grid scheme based on the IEEE nine-bus standard test system, with only grid-forming power converters as generation sources. The test system is modelled in the MATLAB/Simulink environment. Therefore, the protection relays that verify all the steps established in the new algorithm can detect and clear any ground defect. Simulations are also presented involving different fault locations to demonstrate the effectiveness of the proposed ground fault protection method. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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15 pages, 10368 KiB  
Article
Fault-Tolerant Control Strategy for Sub-Modules Open-Circuit Fault of Modular Multilevel Converter
by Yaoxi Jiang, Hongchun Shu and Mengli Liao
Electronics 2023, 12(5), 1080; https://doi.org/10.3390/electronics12051080 - 22 Feb 2023
Cited by 6 | Viewed by 2043
Abstract
Modular multilevel converter (MMC) is a key device of high-voltage-direct circuit (HVDC) transmission system, the sub-module detection technology of which will directly influence the damage severity, and even the reliability of the whole system. In this paper, the open-circuit fault characteristics of an [...] Read more.
Modular multilevel converter (MMC) is a key device of high-voltage-direct circuit (HVDC) transmission system, the sub-module detection technology of which will directly influence the damage severity, and even the reliability of the whole system. In this paper, the open-circuit fault characteristics of an insulated gate bipolar transistor (IGBT) in a sub-module are analyzed, and a fault-tolerant optimal control strategy is proposed for the redundant hot-reserved MMC based on nearest-level modulation (NLM). A fault sub-module diagnosis and location strategy based on the deviation distance of the capacitor voltages is presented. After the faulty sub-module is removed, due to the asymmetric operation of the MMC, odd-order circulating currents are introduced in the faulty phase, in which the fundamental-frequency circulating current is the major component; the fundamental-frequency voltage related to the redundancy rate is injected into the faulty phase, which effectively suppresses the fundamental-frequency circulating current and harmonics in the faulty phase. The proposed method combines fault detection and fault ride-through steps, so it has the features of high reliability and high compatibility. Based on the Matlab/Simulink simulation model, the effectiveness of the proposed strategy is verified. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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21 pages, 607 KiB  
Article
Optimal Charging and Discharging Strategies for Electric Cars in PV-BESS-Based Marina Energy Systems
by Dawid Jozwiak, Jayakrishnan Radhakrishna Pillai, Pavani Ponnaganti, Birgitte Bak-Jensen and Jan Jantzen
Electronics 2023, 12(4), 1033; https://doi.org/10.3390/electronics12041033 - 19 Feb 2023
Cited by 3 | Viewed by 2615
Abstract
The emerging concept of integrated community energy systems (ICESs) proves its suitability for improving the operation of local grids—increasing self-consumption from local generation, enhancing the load factor, and reducing energy cost. In Ballen marina—located on the Danish island of Samsø—the battery energy storage [...] Read more.
The emerging concept of integrated community energy systems (ICESs) proves its suitability for improving the operation of local grids—increasing self-consumption from local generation, enhancing the load factor, and reducing energy cost. In Ballen marina—located on the Danish island of Samsø—the battery energy storage system (BESS)’s action can be possibly complemented by the flexibility of boats and electric cars. With the greater involvement of energy consumers, the energy system’s performance may become more efficient—from both technical and economic perspectives. Within this framework, the optimal charging and discharging strategies of the marina’s electric cars were developed and evaluated. The car usage profile was generated, utilising a stochastic approach to resemble daily variations in the driving pattern. The optimal charging strategy was established, subsequently integrating this action with boat flexibility. As a future scenario, the benefits of vehicle-to-grid (V2G) technology implementation were examined, proving significant enhancements of the future marina’s grid—with increased photovoltaic (PV) generation capacity and the number of electric cars. The economic benefits of bidirectional charging were proven, with ample advantages for the marina and the rental company, leading to cost savings of up to 51.7% and minimising the energy export by 21.3%. Therefore, increasing the integration level of Ballen marina’s flexible units—electric cars and boats—was concluded to be an important goal for the coming years. Full article
(This article belongs to the Special Issue Advanced Power Generation and Conversion Systems)
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