Energy Conversion and Management-X最新文献_第7页

Methodology for the use of aerial thermography as a validation method for outdoor thermal comfort simulations 使用航空热成像作为室外热舒适模拟验证方法的方法学

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-11 DOI: 10.1016/j.ecmx.2025.101257

V.P. Lopez-Cabeza, M. Videras-Rodriguez, S. Gomez-Melgar, J.M. Andujar-Marquez

{"title":"Methodology for the use of aerial thermography as a validation method for outdoor thermal comfort simulations","authors":"V.P. Lopez-Cabeza, M. Videras-Rodriguez, S. Gomez-Melgar, J.M. Andujar-Marquez","doi":"10.1016/j.ecmx.2025.101257","DOIUrl":"10.1016/j.ecmx.2025.101257","url":null,"abstract":"<div><div>The urban heat island (UHI) effect underscores the importance of outdoor spaces in urban planning and design, where thermal comfort has become a critical consideration. Mean Radiant Temperature (MRT) is a dominant factor influencing human thermal perception, making its accurate simulation essential for creating comfortable urban environments. Despite the widespread use of simulation tools, a significant gap exists in their validation, particularly during early design stages. This study introduces a novel methodology for calibrating and validating longwave MRT simulations using aerial thermography, providing a practical and robust approach to improving simulation accuracy. As an example of the proposed methodology, a practical application is carried out using Ladybug Tools® (LBT), a widely used simulation tool known for its powerful features, open access, and integration with early-stage design workflows. It was used to simulate an open space located in Huelva, Spain, under summer conditions. The calibration process refines parameters such as albedo, shading, and grid resolution, ensuring results align with ASHRAE guidelines. The findings demonstrate that, after calibration, LBT can effectively predict MRT, with minor discrepancies attributed to inherent model limitations. This study highlights the potential of aerial thermography to enhance the reliability of MRT simulations across diverse platforms, providing urban planners and designers with a valuable framework for assessing thermal comfort. By bridging a critical validation gap, this work supports the development of more sustainable and thermally comfortable urban spaces, paving the way for broader applications in urban planning and climate adaptation strategies.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101257"},"PeriodicalIF":7.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Well-to-wheel greenhouse gas emissions comparison of electricity and biomethane urban buses 电力和生物甲烷城市公交车从井到轮的温室气体排放比较

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-10 DOI: 10.1016/j.ecmx.2025.101232

Michel Noussan , Lorenzo Laveneziana , Matteo Prussi , David Chiaramonti

{"title":"Well-to-wheel greenhouse gas emissions comparison of electricity and biomethane urban buses","authors":"Michel Noussan , Lorenzo Laveneziana , Matteo Prussi , David Chiaramonti","doi":"10.1016/j.ecmx.2025.101232","DOIUrl":"10.1016/j.ecmx.2025.101232","url":null,"abstract":"<div><div>Public transport can represent an important solution to reduce the greenhouse gas emissions of the transport sector, even more when relying on low-carbon powertrains. Compared with other public transport modes that are already mostly electrified, buses still rely on oil products in many cities around the world. This work analyses two promising alternative options for urban mobility, by evaluating the greenhouse gas emissions intensity of the supply chains of battery electric buses and biomethane-powered internal combustion engines. In addition to general results, the analysis also presents a focus on each EU country, to highlight the potential variability related to different operating conditions. The outcome of the study confirms that interesting emissions savings can be achieved through the substitution of diesel buses with these low-carbon alternatives. The level of emissions savings depends on the source of electricity generation and the feedstock used to produce biomethane. A bus fleet composed by half electricity and half biomethane buses could lead to savings between 70%–125% depending on the country (figures higher than 100% can be obtained thanks to negative emissions associated to biomethane production from some feedstocks). These results can support decision makers working on strategies to reduce emissions of urban transport modes, as they confirm the interesting opportunity represented by these technologies compared to the current situation, and even more when considering them against the use of private cars in urban environments.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101232"},"PeriodicalIF":7.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of graphene oxide nanoparticles on the performance and emissions of marine microalgae-derived biodiesel-diesel blends in a diesel engine 氧化石墨烯纳米颗粒对柴油发动机中海洋微藻衍生生物柴油-柴油混合物的性能和排放的影响

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-10 DOI: 10.1016/j.ecmx.2025.101259

Teshome Dengiso Megiso , Venkata Ramayya Ancha , Ramesh Babu Nallamothu

{"title":"Effects of graphene oxide nanoparticles on the performance and emissions of marine microalgae-derived biodiesel-diesel blends in a diesel engine","authors":"Teshome Dengiso Megiso , Venkata Ramayya Ancha , Ramesh Babu Nallamothu","doi":"10.1016/j.ecmx.2025.101259","DOIUrl":"10.1016/j.ecmx.2025.101259","url":null,"abstract":"<div><div>The search for cleaner fuels has intensified as the world faces climate change, air pollution, and shrinking fossil reserves. Among renewable options, marine microalgae offer a promising pathway due to their high lipid content, rapid growth, and non-competition with food crops. This study evaluates the performance and emission behavior of a diesel engine operating on Ulva fasciata biodiesel-diesel blends (B5-B25), with a focus on the role of graphene oxide (GO) nanoparticles as a combustion enhancer. Baseline experiments identified B25 as the most effective blend, striking a balance between efficiency and emission control. To further enhance performance, Graphene oxide nanoparticles was dispersed in B25 at concentrations ranging from 35 to 75 ppm, stabilized with sodium dodecyl sulfate. The fuel tests, including analyses of its physicochemical properties, FTIR, GC–MS, XRD, and zeta potential, showed that the nanofuel was both stable and reactive. Engine tests revealed that B25 with 55 ppm GO delivered the best results: brake thermal efficiency rose by 7–10 %, torque increased by up to 35 %, and fuel consumption decreased by 8–12 % compared with neat B25. At the same time, emissions of CO, HC, PM, and NO<sub>x</sub> dropped by 12–18 %, 14 %, 15–18 %, and 6–8 %, respectively, with all improvements statistically significant (p < 0.05). These results show that GO not only offsets biodiesel’s drawbacks but also unlocks new performance and environmental benefits, positioning GO-enriched marine algal biodiesel as a scalable, sustainable fuel for cleaner diesel engine operation.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101259"},"PeriodicalIF":7.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cross-scale study on water and gas transfer in proton exchange membrane fuel cell considering micro porous layer interfaces 考虑微孔层界面的质子交换膜燃料电池水、气传输的跨尺度研究

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-10 DOI: 10.1016/j.ecmx.2025.101255

Guofu Zou , Yi Yu , Wenshang Chen , Zhongzhuang Xiong , Ke Chen , Jun Shen , Ben Chen

{"title":"Cross-scale study on water and gas transfer in proton exchange membrane fuel cell considering micro porous layer interfaces","authors":"Guofu Zou , Yi Yu , Wenshang Chen , Zhongzhuang Xiong , Ke Chen , Jun Shen , Ben Chen","doi":"10.1016/j.ecmx.2025.101255","DOIUrl":"10.1016/j.ecmx.2025.101255","url":null,"abstract":"<div><div>The maximum power density of a proton exchange membrane fuel cell (PEMFC) is most affected by mass transfer at high current densities, where water flooding hinders oxygen transfer. In this paper, the multiphase and mass transport lattice Boltzmann method (LBM) model is applied to cross-scale explore how water migrates from the catalyst layer (CL) to the flow channel through the micro porous layer (MPL), taking into account pressure and interfacial variations, and analyzing the structure factors (on water migration in-plane and through-plane), which can provide theoretical guidance for better mass transfer. Our simulations reveal that thicker transition layers (TL) lower water saturation in the gas diffusion layer (GDL) and on the MPL surface but reduce porosity, hindering oxygen transport and drainage. TL height exerts a significant influence on the timing of breakthrough, while an increase in crack width has the effect of reducing the influence of TL height. Crack width and spacing control where and how much water invades at the interface without affecting inner GDL flow channels. Moderate compression further reduces GDL saturation, with water breakthrough mainly under channels and higher saturation beneath channels than ribs. Low porosity is more sensitive to compression and increases the breakthrough time with increasing pressure, while high porosity is mainly affected by the thickness of the TL.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101255"},"PeriodicalIF":7.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical prediction of solar radiation in South Korea: assessment of WRF-Solar and WRF 韩国太阳辐射的数值预报：WRF- solar和WRF的评估

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-10 DOI: 10.1016/j.ecmx.2025.101253

Ji Won Yoon , Hyunsu Kim , Hae Soo Jung , Seon Ki Park

{"title":"Numerical prediction of solar radiation in South Korea: assessment of WRF-Solar and WRF","authors":"Ji Won Yoon , Hyunsu Kim , Hae Soo Jung , Seon Ki Park","doi":"10.1016/j.ecmx.2025.101253","DOIUrl":"10.1016/j.ecmx.2025.101253","url":null,"abstract":"<div><div>This study aims to comparatively evaluate the performance of the Weather Research and Forecasting (WRF) model and the WRF-Solar model for forecasting global horizontal irradiance (GHI), a key factor in photovoltaic (PV) power generation, over South Korea during summer 2023. Experiments were conducted using WRF (CNTL) and WRF-Solar (EXP_R and EXP_F): All experiments used the same physical parameterization schemes, except for those specialized in WRF-Solar—Thompson–Eidhammer microphysics and Deng shallow cumulus (used in EXP_R and EXP_F), and Fast All-sky Radiation Model for Solar applications (FARMS) schemes (used only in EXP_F).</div><div>The GHI forecasts were evaluated across all (ALL), clear (CLR), cloudy (CLD), and overcast (OVC) sky conditions using in-situ and remote sensing data. Both EXP_R and EXP_F outperformed CNTL, with RMSE improvement of 7.2 − 19.9 % for EXP_R and 6.8 − 37.0 % for EXP_F. All experiments performed similarly under CLR; however, EXP_F outperformed EXP_R in other conditions, achieving up to 37.0 % improvement under OVC. The spatial distribution analysis also indicated improvements in WRF-Solar experiments, with EXP_F outperforming EXP_R. Additionally, WRF-Solar showed better cloud detection performance than WRF. In conclusion, this study demonstrates the first successful application of WRF-Solar in South Korea and highlights its potential to enhance energy management and solar power planning.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101253"},"PeriodicalIF":7.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economic sizing and multi-objective energy management of AC multi-bus microgrids for enhanced reliability and cost efficiency: Application to small villages in Morocco 提高可靠性和成本效率的交流多母线微电网的技术经济规模和多目标能源管理：在摩洛哥小村庄的应用

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-10 DOI: 10.1016/j.ecmx.2025.101246

Ayoub Chrif , Elhoussin Elbouchikhi , Abdelmajid Abouloifa , Mohamed Machmoum

{"title":"Techno-economic sizing and multi-objective energy management of AC multi-bus microgrids for enhanced reliability and cost efficiency: Application to small villages in Morocco","authors":"Ayoub Chrif , Elhoussin Elbouchikhi , Abdelmajid Abouloifa , Mohamed Machmoum","doi":"10.1016/j.ecmx.2025.101246","DOIUrl":"10.1016/j.ecmx.2025.101246","url":null,"abstract":"<div><div>Rural electrification in remote areas remains a critical challenge due to limited infrastructure and the need for reliable, cost-effective energy solutions. Microgrids offer promising solutions to address these challenges. In particular, multi-microgrid (MMG) configurations outperform standalone microgrids for scalable and sustainable rural energy access. However, their design and operation require advanced methods, including artificial intelligence (AI), to manage their complexity. This study seeks to develop a techno-economic model for the optimal sizing and energy management of an AC multi-bus microgrid. The model, implemented using MATLAB software, uses a two-stage framework that first determines the optimal sizing of distributed energy resources (DERs) using the intelligent genetic algorithm (GA), then coordinates real-time energy management across interconnected microgrids based on a multi-objective optimization. By incorporating detailed representations of active and reactive power flows, the approach ensures voltage stability and system resilience under both grid-connected and isolated operating conditions. An incentive-based demand response (IDR) program is also integrated to shift loads from on-peak to off-peak periods, reducing operational costs. A case study involving a modified IEEE 5-bus system demonstrates 24.6% reduction in operational costs through peer-to-peer (P2P) energy exchange and grid reliance minimization. Results highlight voltage stability (±5% deviation), effective battery utilization, and resilience in islanding mode, with 10% cost reduction from demand response.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101246"},"PeriodicalIF":7.6,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145095908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A scenario-based integrated battery sizing and power plant scheduling under variable fuel prices and maritime operational profiles 在可变燃料价格和海上操作概况下，基于场景的集成电池尺寸和发电厂调度

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-07 DOI: 10.1016/j.ecmx.2025.101240

Sankarshan Durgaprasad , Andrea Coraddu , Eben Heyneman , Christof Lamproye , Henk Polinder

{"title":"A scenario-based integrated battery sizing and power plant scheduling under variable fuel prices and maritime operational profiles","authors":"Sankarshan Durgaprasad , Andrea Coraddu , Eben Heyneman , Christof Lamproye , Henk Polinder","doi":"10.1016/j.ecmx.2025.101240","DOIUrl":"10.1016/j.ecmx.2025.101240","url":null,"abstract":"<div><div>Hybrid power systems are increasingly adopted onboard. Lithium-ion batteries now serve as a viable energy storage solution that enhances fuel efficiency and reduces the operating hours of main power units, thereby reducing operational expenses. However, integrating batteries onboard requires decision-making that accounts for diverse scenarios, including battery chemistry, variations in vessel operational profiles, and fluctuating fuel prices. To address these challenges, this study investigates whether battery sizing and scheduling of the power and energy management system require a scenario-based stochastic decision framework. Specifically, it examines how energy storage requirements are influenced by varying load profiles, whether the optimal battery size and power management strategy are affected by fuel price fluctuations, and how robust the overall strategy remains under operational uncertainties. A deterministic equivalent of a two-stage stochastic decision framework is introduced to incorporate these uncertainties, offering insights into the required battery technology, capacity, and correlated behavior of onboard energy management. Multiple scenarios are applied to a trailing suction hopper dredger, analyzing three load profiles with distinct variations in power demand. With reserve power constraints enforced, the optimal battery capacity remains fixed. However, when these constraints are relaxed, the optimal battery size becomes more sensitive to fuel price changes. In addition, the results showcase reduction in diesel engine operating hours—thereby lowering both fuel consumption and maintenance costs, demonstrating that these operational benefits depend not only on the battery’s size but also on its available throughput, which allows for deeper cycling.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101240"},"PeriodicalIF":7.6,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal sizing of hybrid energy systems for decarbonization considering demand response and energy storage 考虑需求响应和能量存储的混合能源脱碳系统的最优规模

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-06 DOI: 10.1016/j.ecmx.2025.101250

Mohammad Reza Maghami , Jagadeesh Pasupuleti , Mohamed Mazlan , Janaka Ekanayake

{"title":"Optimal sizing of hybrid energy systems for decarbonization considering demand response and energy storage","authors":"Mohammad Reza Maghami , Jagadeesh Pasupuleti , Mohamed Mazlan , Janaka Ekanayake","doi":"10.1016/j.ecmx.2025.101250","DOIUrl":"10.1016/j.ecmx.2025.101250","url":null,"abstract":"<div><div>Designing cost-effective and low-emission Hybrid Energy Systems (HES) for off-grid rural areas requires not only optimal sizing but also a strong understanding of how key parameters impact system performance. In this study, sensitivity analysis is a central component, used to evaluate the effects of varying capital costs, battery capacity, Demand Response (DR) parameters, Diesel Generator (DG) size, and Renewable Energy Fraction (REF) on both economic and environmental outcomes. This approach ensures that the most robust and resilient configuration is identified under changing technical and financial conditions. A rural village in South Khorasan, Iran, with a daily load demand of 68 kWh, was selected as the case study. Four system configurations were simulated using HOMER Pro and MATLAB: (1) base HES, (2) HES with DR, (3) HES with DG, and (4) HES with both DR and DG. The results show that Scenario 4 (HES + DR + DG) provided the best performance. It reduced the Cost of Energy (COE) by 17 % (from $0.392/kWh to $0.328/kWh) and the Net Present Cost (NPC) by 16 % (from $124,780 to $104,706). The system achieved an 88 % RF, while DG operation was limited to 1831 h per year with 1108 L of fuel consumed. DR implementation also reduced battery size requirements by 37 %. This study demonstrates that integrating DR and DG, guided by detailed sensitivity analysis, leads to an optimized, low-emission, and cost-efficient HES suitable for rural electrification.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101250"},"PeriodicalIF":7.6,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Techno-economic analysis of tilt angle and inter-row spacing: Optimization of a 200 MW floating solar PV plant 倾斜角度与行间距的技术经济分析：200mw浮动太阳能光伏电站优化

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-05 DOI: 10.1016/j.ecmx.2025.101245

Md. Rahmot Ullah, Mahmud Hasan, Diganto Biswas, Md. Feroz Ali, Md. Galib Hasan

{"title":"Techno-economic analysis of tilt angle and inter-row spacing: Optimization of a 200 MW floating solar PV plant","authors":"Md. Rahmot Ullah, Mahmud Hasan, Diganto Biswas, Md. Feroz Ali, Md. Galib Hasan","doi":"10.1016/j.ecmx.2025.101245","DOIUrl":"10.1016/j.ecmx.2025.101245","url":null,"abstract":"<div><div>Floating photovoltaic (FPV) systems offer a promising solution for renewable energy generation in densely populated and land-scarce countries like Bangladesh. This study presents a techno-economic optimization of a 200 MW grid-connected FPV plant proposed for Kaptai Lake (22.63° N, 92.24° E). Using PVsyst software (Version 7.4.7), 100 system configurations were simulated by varying tilt angles (18°–27°) and inter-row spacings (0.2–2.0 m) to evaluate energy output, shading losses, performance ratio (PR), and financial feasibility. The optimal configuration—22° tilt and 0.8 m spacing—yields 399.8 GWh annually with an 83.21 % PR, minimal shading (1.71 %), and array/system losses of 0.804 % and 0.077 %, respectively. Economic indicators confirm strong viability, with a Net Present Value (NPV) of USD 226.23 million, Levelized Cost of Electricity (LCOE) of USD 0.0433/kWh, payback period of 5.81 years, 149.2 % ROI, and 19.25 % IRR. Although higher tilt or spacing can increase output marginally, they significantly escalate installation costs (up to USD 190.62 million), undermining cost-effectiveness. This study demonstrates that FPV is not only land-efficient and environmentally sustainable, it reduces 4740316.3 tons CO<sub>2</sub> emission, but also economically viable for large-scale deployment in Bangladesh. The simulation-based approach provides a replicable model for future FPV projects on inland water bodies, contributing to national energy diversification and climate resilience goals.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101245"},"PeriodicalIF":7.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DC bus-controlled grid-forming inverters for enhanced stability and fuel efficiency in hybrid microgrids 用于增强混合微电网稳定性和燃油效率的直流母线控制并网逆变器

IF 7.6

Energy Conversion and Management-X Pub Date : 2025-09-04 DOI: 10.1016/j.ecmx.2025.101243

Sunjoh Christian Verbe , Amit Hasan , Ryuto Shigenobu , Akiko Takahashi , Masakazu Ito , Hisao Taoka , Atsushi Matsuda , Wahei Nakamura

{"title":"DC bus-controlled grid-forming inverters for enhanced stability and fuel efficiency in hybrid microgrids","authors":"Sunjoh Christian Verbe , Amit Hasan , Ryuto Shigenobu , Akiko Takahashi , Masakazu Ito , Hisao Taoka , Atsushi Matsuda , Wahei Nakamura","doi":"10.1016/j.ecmx.2025.101243","DOIUrl":"10.1016/j.ecmx.2025.101243","url":null,"abstract":"<div><div>Diesel generators (DGs) have long provided inertia and stability in microgrids but face critical limitations including poor fuel efficiency, slow frequency recovery, and high carbon emissions. This paper proposes a DC Bus Controller for grid-forming inverters (GFMs) that leverages DC voltage dynamics as an active energy buffer to enhance stability and efficiency in diesel–renewable hybrid microgrids. Unlike droop or virtual synchronous generator (VSG) schemes, the controller directly translates DC voltage deviations into adaptive active power references, enabling sub-cycle response and seamless DG–GFM coordination. Comprehensive analysis and hardware-in-the-loop (HIL) validation confirm its effectiveness. Results show a 70 % increase in damping ratios, phase margin of 63°, RoCoF mitigation to –0.5 Hz/s, and black start capability within 1.3 s. The strategy also achieves fault recovery in 0.31 s and 57 % fuel savings under 100 % inverter-based operation. By integrating scalability, circulating current suppression, and fuel optimization, the proposed controller demonstrates a field-ready pathway toward diesel-free, inverter-dominant microgrids.</div></div>","PeriodicalId":37131,"journal":{"name":"Energy Conversion and Management-X","volume":"28 ","pages":"Article 101243"},"PeriodicalIF":7.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0