Sustainable Energy Technologies and Assessments最新文献_第7页

Implementation and analysis of switched-capacitor multilevel inverters in solar photovoltaic system

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-10 DOI: 10.1016/j.seta.2025.104227

Yatindra Gopal , Akanksha Kumari , Kaibalya Prasad Panda , Dheeraj Kumar Dhaked , Yogendra Arya

{"title":"Implementation and analysis of switched-capacitor multilevel inverters in solar photovoltaic system","authors":"Yatindra Gopal , Akanksha Kumari , Kaibalya Prasad Panda , Dheeraj Kumar Dhaked , Yogendra Arya","doi":"10.1016/j.seta.2025.104227","DOIUrl":"10.1016/j.seta.2025.104227","url":null,"abstract":"<div><div>Recently, switched capacitors (SC) based multilevel inverter (MLI) concepts are employed with renewable energy (RE) sources for industry and various other applications. Among the RE sources, photovoltaic (PV) source of energy is mostly employed for the electric power generation. To maximize power generation from PV source, fuzzy logic controller (FLC) technique is used to track the maximum power point (MPP). By FLC, the system achieves dynamic and adaptive control, enabling efficient handling of nonlinearities and variations in solar irradiance and load conditions. The FLC technique calculates reference of PV voltage to optimize energy transfer from PV system to MLI and connected loads. This paper introduces a novel approach of implementing a 7-level PV-based Switched Capacitor MLI (7L-PV-SCMLI) topology aimed to reduces the number of switch devices and Total Harmonic Distortion (THD). Furthermore, the SCMLI topology boosts the input DC voltage without requiring bulky transformers or complex circuits, ensuring a compact and cost-effective design. To calculate the firing angles for SCMLI switches, a new Anti-Predatory Particle Swarm Optimization (APSO) technique is considered. The proposed method targets to elimination of harmonic specifically tailored for 7L-PV-SCMLI systems. The self-balancing and voltage enhance features of the proposed structure is validated on MATLAB/Software platform and verified experimentally.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104227"},"PeriodicalIF":7.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-synchronization grid-connection startup strategy for photovoltaic virtual synchronous generators based on sliding mode control

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-10 DOI: 10.1016/j.seta.2025.104231

Chencheng Shi , Yu Tang , Mengjie Hu , Zening Wang , Zijun Xu , Liang Guo

{"title":"Pre-synchronization grid-connection startup strategy for photovoltaic virtual synchronous generators based on sliding mode control","authors":"Chencheng Shi , Yu Tang , Mengjie Hu , Zening Wang , Zijun Xu , Liang Guo","doi":"10.1016/j.seta.2025.104231","DOIUrl":"10.1016/j.seta.2025.104231","url":null,"abstract":"<div><div>Photovoltaic power generation is subject to random influences from the external environment, so the power quality of photovoltaic grid-connection systems cannot be guaranteed. To achieve smooth grid-connection photovoltaic load systems that can adapt to changes in the external environment, this paper proposes a new photovoltaic virtual synchronous generator (PV-VSG) pre-synchronization grid-connection control strategy. This strategy adapts to changes in the external environment by regressing and predicting the maximum output power of the photovoltaic array. The frequency modulation control method combined with power reserve is designed to enable the photovoltaic converter to independently support the grid voltage and frequency, and the flexibility of the grid-connection system to cope with external disturbances is improved through the variable step-size voltage tracking control of the photovoltaic array. This strategy does not require the use of energy storage batteries to stabilize the DC bus voltage but is implemented through a sliding mode controller, which successfully improves the robustness of the photovoltaic grid-connection system. In addition, this strategy also designs a slow start pre-synchronization algorithm for the PV-VSG, which successfully eliminates the power lag problem caused by the power imbalance of the bipolar photovoltaic grid-connection converter when connected to the power grid.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104231"},"PeriodicalIF":7.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon Capture and Sequestration: Cutting-Edge Technologies to Combat Climate Change

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-07 DOI: 10.1016/j.seta.2025.104226

Gourav Dhingra , Anil Kumar

{"title":"Carbon Capture and Sequestration: Cutting-Edge Technologies to Combat Climate Change","authors":"Gourav Dhingra , Anil Kumar","doi":"10.1016/j.seta.2025.104226","DOIUrl":"10.1016/j.seta.2025.104226","url":null,"abstract":"<div><div>Carbon capture and sequestration (CCS) is highly sophisticated and crucial technology developed to reduce the escalating amounts of carbon dioxide (CO<sub>2</sub>) emissions. Thiswork aims to enhance the progress of CCS as a crucial instrument in the worldwide endeavor to alleviate climate change. By analyzing case studies such as the Boundary Dam (BD) project in Canada, Sleipner project in Norway Petra Nova (PN) CCS project in the United States, Subei Basin and Shenhua CCS project in China, this article addresses various capture procedures, including pre-combustion, post-combustion, and oxy-fuel combustion, as well as the geophysical storage techniques employed in theinstances along with technological advancements. It examines real-world scenarios of CCSprojects, highlighting the practicality and outcomes of CCS installations across numerous sectors, includingindustries,power producing, cement manufacture, and hydrocarbon processing. Further research is needed to concentrate on cost reduction strategies, assess site-specific characteristics, policy engagement, and collaboration with distinct technologies for CCS technology to be instrumental.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104226"},"PeriodicalIF":7.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the identification of regulatory gaps for hydrogen as maritime fuel

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-07 DOI: 10.1016/j.seta.2025.104224

C. Georgopoulou , C. Di Maria , G. Di Ilio , V. Cigolotti , M. Minutillo , M. Rossi , B.P. Sullivan , A. Bionda , M. Rautanen , R. Ponzini , F. Salvadore , M. Alvarez-Cardozo , P. Douska , L. Koukoulopoulos , G. Psaraftis , G. Dimopoulos , Th. Wannemacher , N. Baumann , K. Mahos , M. Tome , E.J. Boonen

{"title":"On the identification of regulatory gaps for hydrogen as maritime fuel","authors":"C. Georgopoulou , C. Di Maria , G. Di Ilio , V. Cigolotti , M. Minutillo , M. Rossi , B.P. Sullivan , A. Bionda , M. Rautanen , R. Ponzini , F. Salvadore , M. Alvarez-Cardozo , P. Douska , L. Koukoulopoulos , G. Psaraftis , G. Dimopoulos , Th. Wannemacher , N. Baumann , K. Mahos , M. Tome , E.J. Boonen","doi":"10.1016/j.seta.2025.104224","DOIUrl":"10.1016/j.seta.2025.104224","url":null,"abstract":"<div><div>The decarbonization of the maritime sector represents a priority in the energy policy agendas of the majority of Countries worldwide, and the International Maritime Organization (IMO) has recently revised its strategy aiming for an ambitious zero-emissions scenario by 2050. In these regards, there is a broad consensus on hydrogen as one of the most promising clean energy vectors for maritime transport, and a key towards that goal. However, to date, an international regulatory framework for the use of hydrogen on-board of ships is absent, this posing a severe limitation to the adoption of hydrogen technologies in this sector. To cope with this issue, this paper presents a preliminary gap assessment analysis for the <em>International Code of Safety for Ship Using Gases or other Low-flashpoint Fuels</em> (IGF Code) with relation to hydrogen as a fuel. The analysis is structured according to the IGF Code chapters, and a bottom-up approach is followed to review the code content and assess its relevance to hydrogen. The risks related to hydrogen are accounted for in assessing the gaps and providing a first level set of recommendations for IGF Code updates. By this means, this work settles the basis for further research over the identified gaps, towards the identification of a final set of recommendations for the IGF Code update.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104224"},"PeriodicalIF":7.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143295121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parameter optimization calibration of low-pressure fuel cell energy system based on adaptive response surface algorithm

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-07 DOI: 10.1016/j.seta.2025.104206

Bo Zhang , Fengxiang Chen , Shuang Zhai , Fenglai Pei , Jieran Jiao , Weidong Zhang , Su Zhou

{"title":"Parameter optimization calibration of low-pressure fuel cell energy system based on adaptive response surface algorithm","authors":"Bo Zhang , Fengxiang Chen , Shuang Zhai , Fenglai Pei , Jieran Jiao , Weidong Zhang , Su Zhou","doi":"10.1016/j.seta.2025.104206","DOIUrl":"10.1016/j.seta.2025.104206","url":null,"abstract":"<div><div>This study addresses the high time, material, and labor costs associated with the non-automated online parameter optimization calibration of fuel cell systems. An adaptive response surface method (ARSM) is proposed to automate the calibration process and significantly reduce these costs. The low-pressure fuel cell system is modeled using the lumped parameter approach, including segmented models for stack channels, with optimization parameters and constraints analyzed comprehensively. The ARSM algorithm dynamically shrinks the parameter search space during each iteration and employs a sample point inheritance strategy following space reduction, further minimizing time costs. Quantitative analysis demonstrates that the ARSM reduces calibration time by 31% compared to traditional RSM. Case studies reveal that as current load increases, the optimal oxygen excess ratio rises, while the optimal stack temperature declines. Latin hypercube sampling is identified as more efficient than full factorial sampling, and initializing optimization with the previous condition’s optimal values is shown to outperform using the parameter space center point. The proposed methodology not only enhances the efficiency of the calibration process but also offers a scalable and practical solution for real-time applications. These findings provide a robust framework for reducing costs and improving efficiency in fuel cell system parameter optimization.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104206"},"PeriodicalIF":7.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategy recommendations for minimizing economic inequalities increased by renewable energy investments regarding sustainable development

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-05 DOI: 10.1016/j.seta.2025.104225

Hakan Kalkavan , Serhat Yüksel , Serkan Eti , Hasan Dinçer , Alexey Mikhaylov , Gabor Pinter

{"title":"Strategy recommendations for minimizing economic inequalities increased by renewable energy investments regarding sustainable development","authors":"Hakan Kalkavan , Serhat Yüksel , Serkan Eti , Hasan Dinçer , Alexey Mikhaylov , Gabor Pinter","doi":"10.1016/j.seta.2025.104225","DOIUrl":"10.1016/j.seta.2025.104225","url":null,"abstract":"<div><div>Renewable energy investments provide significant benefits for countries. However, these investments may also create some problems that lead to economic inequality, such as harming the agricultural area and increasing energy costs. Thus, for the purpose of sustainable economic growth, these problems should be minimized. Nevertheless, it is not optimal for countries to take measures against all these problems because each measure causes countries to make new expenditures. Hence, it is necessary to determine priority measures for this issue so that solutions can be implemented in a more efficient manner. Accordingly, the purpose of this study is to identify appropriate priority strategies to minimize the economic inequality caused by renewable energy investments. A two-stage model has been established within this framework. First, a set of criteria is evaluated with T-Spherical fuzzy TOPSIS-based DEMATEL (T-SF TOP-DEMATEL). Secondly, five different renewable energy alternatives will be examined using the SF MAIRCA method. The findings indicate that environmental damage in renewable energy investments is the most critical issue that leads to economic inequality because it has the greatest weight (0.165934). Additionally, it is also found that hydropower energy creates economic inequality more than other renewable energy types due to lowest Q value (0,011).</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"75 ","pages":"Article 104225"},"PeriodicalIF":7.1,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143128165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full-cycle dynamic security region for the integrated electricity-gas energy systems

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI: 10.1016/j.seta.2025.104171

Zehua Yin , Xiaoqing Han , Tingjun Li , Xinfang Zhang

{"title":"Full-cycle dynamic security region for the integrated electricity-gas energy systems","authors":"Zehua Yin , Xiaoqing Han , Tingjun Li , Xinfang Zhang","doi":"10.1016/j.seta.2025.104171","DOIUrl":"10.1016/j.seta.2025.104171","url":null,"abstract":"<div><div>The growing interdependence of the electric power system (EPS) and the natural gas system (NGS) has led to frequent cascading failures between the two systems in recent years. The study of the security region for the integrated electric and gas system (IEGS) is the key approach to prevent such incidents. However, the security region method is developed based on the static operating characteristics of the EPS, which limits its applicability to the IEGS with dynamic gas flow and line-pack storage characteristics. To address this issue, this paper proposes the concept of the dynamic security region (DSR) for the IEGS, and develops a set of DSR optimization models, which are capable of accurately portraying the dynamic evolution of the IEGS safety margin with gas flow diffusion. The DSR is founded upon the high-accuracy dynamic gas flow model, which is solved using a three-stage leapfrog finite difference method (TL-FDM). An improved orbital rotation method is proposed to approximate the DSR boundary. On this basis, a full-cycle DSR rolling optimization solution algorithm is developed. Case Studies demonstrate the effectiveness of the proposed method and verify that it significantly improves the reliability of the system operation.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"74 ","pages":"Article 104171"},"PeriodicalIF":7.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy harvesting technologies on high-speed railway infrastructure: Review and comparative analysis of the potential and practicality

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI: 10.1016/j.seta.2025.104187

Wenjing Sun , David J. Thompson , Daniil Yurchenko , Dong Zhao , Zhenhua Luo , Irfan Khan

{"title":"Energy harvesting technologies on high-speed railway infrastructure: Review and comparative analysis of the potential and practicality","authors":"Wenjing Sun , David J. Thompson , Daniil Yurchenko , Dong Zhao , Zhenhua Luo , Irfan Khan","doi":"10.1016/j.seta.2025.104187","DOIUrl":"10.1016/j.seta.2025.104187","url":null,"abstract":"<div><div>A comprehensive quantitative analysis is provided of the potential applications of energy harvesting (EH) technologies tailored to high-speed railway infrastructure. The study compares the various energy sources within railway infrastructure and identifies suitable EH technologies. Feasible designs and scales of EH are assessed based on the installation location; the overall power availability and energy yield are compared for a notional high-speed railway. For resonant EH devices an assessment is also given of the optimal tuning frequency. Vibration-based EH, when applied to the track or bridge structures, can provide sufficient power for individual low-power sensors; however, its output is insufficient for higher-power applications or for data transmission unless energy storage devices are incorporated. Despite the elevated noise levels generated by high-speed trains, the energy available from this acoustic source is negligible and impractical for EH. Small vertical axis wind turbines installed close to the track and driven by passing trains show great potential, capable of harvesting several orders of magnitude more energy than vibration-based EH. Solar photovoltaic panels can generate significantly more energy than other methods, although their output is confined to daylight conditions and is contingent upon weather conditions.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"74 ","pages":"Article 104187"},"PeriodicalIF":7.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel technologies for the sustainable development of energy, water and environmental systems

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI: 10.1016/j.seta.2025.104192

Vid Zuljan, Hrvoje Mikulčić, Adolfo Palombo, Tine Seljak

{"title":"Novel technologies for the sustainable development of energy, water and environmental systems","authors":"Vid Zuljan, Hrvoje Mikulčić, Adolfo Palombo, Tine Seljak","doi":"10.1016/j.seta.2025.104192","DOIUrl":"10.1016/j.seta.2025.104192","url":null,"abstract":"<div><div>Environmental crisis is becoming an increasingly important topic with urgent solutions required to mitigate climate changes and eventually reverse them in a positive direction. Several different policies have been adopted recently throughout the world in an effort to follow Sustainable Development Goals. The International Centre for Sustainable Development of Energy, Water and Environment Systems (SDEWES) is one of the leading organizations aiming to improve and disseminate knowledge on methods, policies and technologies for increasing the transition by de-coupling growth from natural resources and introducing knowledge-based economy, while including economic, environmental and social sectors. SDEWES is holding yearly conferences, where scholars from all over the world gather to exchange information, present new ideas and form working partnerships with a common goal of developing novel technologies for sustainable development of energy, water and environment systems. The current Virtual Special Issue (VSI) of the Sustainable Energy Technologies and Assessments is dedicated to the SDEWES 2023 conference in Dubrovnik, which brought together 646 scientists, researchers and experts in the field of sustainable development from 58 countries and six continents. This editorial covers the papers accepted in the SETA VSI edition for the 2023 SDEWES conference. The papers represent thorough investigations on the latest technology advancements and methodological approaches aimed to move towards a sustainable energy use and reduce its environmental impact in the area of sustainable energy and material efficiency. Only high-quality archival papers from the conference, rigorously chosen based on scientific quality standards of the Journal, were accepted.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"74 ","pages":"Article 104192"},"PeriodicalIF":7.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A framework to investigate charger capacity utilization and network voltage profile through residential EV charging data clustering

IF 7.1 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2025-02-01 DOI: 10.1016/j.seta.2024.104141

Kazi N. Hasan , Mir Toufikur Rahman , Cameron Terrill , Ryan McLean , Rohan Rodricks , Abhay Sharma , Asif Islam

{"title":"A framework to investigate charger capacity utilization and network voltage profile through residential EV charging data clustering","authors":"Kazi N. Hasan , Mir Toufikur Rahman , Cameron Terrill , Ryan McLean , Rohan Rodricks , Abhay Sharma , Asif Islam","doi":"10.1016/j.seta.2024.104141","DOIUrl":"10.1016/j.seta.2024.104141","url":null,"abstract":"<div><div>A significant increase in the adoption of electric vehicles (EVs) is expected over the next decade. Hence, an investigation of the potential impact of EVs on the electricity grid is critical. This paper presents a framework for grid impact analysis of residential EVs using time series clustering (to perform sequential simulation) and discrete clustering (to estimate peak EV power consumption). This paper employs four clustering techniques, which are (i) K-means, (ii) hierarchical, (iii) DBSCAN, and (iv) fuzzy c-means, by analyzing 348 EV customers’ charging data. Clustering techniques have been implemented in Python, and power flow simulations have been performed using MATLAB/MATPOWER software. The results demonstrated daily and weekly EV profile clusters and EV charger utilization factors. The clustered EV profiles have been passed through to the power flow simulation to identify the network voltage violations. In the daily and weekly clusters, both K-means and hierarchical methods have two dominant clusters having 30 to 40% customers and two minor clusters with 10 to 20% customers. On the other hand, DBSCAN has one dominant cluster (in daily profile) with around 70% customers — as this method is used for anomaly detection. The fuzzy c-means has four almost similar clusters with around 25% customers. The abovementioned trend is evident in the network voltage violation heatmaps having more voltage violations in the weekdays evening (5:00 to 8:00 PM).</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"74 ","pages":"Article 104141"},"PeriodicalIF":7.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0