Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2814/1/012007
Weiping Shao, Yong Li, Meiying Wang and Jinyi Qiu
5G network can meet the multi-type service access needs of substations and promote the intelligent upgrade and transformation of power grids. The layout of buildings and electrical equipment in substations, as well as electromagnetic interference, will have a greater impact on 5G signal coverage. In this paper, a three-dimensional simulation model of the substation is first established, and basic parameters of base station planning are determined. Then, a safety function considering equipment service level and an electromagnetic interference calculation method are defined. Finally, a coverage planning algorithm based on electrical equipment service level and received power quality is proposed to improve the reliability of service access and ensure the safe and stable operation of the system. Simulation results show that the algorithm is effective and reliable.
{"title":"Research on reliable coverage planning of substation based on equipment service level","authors":"Weiping Shao, Yong Li, Meiying Wang and Jinyi Qiu","doi":"10.1088/1742-6596/2814/1/012007","DOIUrl":"https://doi.org/10.1088/1742-6596/2814/1/012007","url":null,"abstract":"5G network can meet the multi-type service access needs of substations and promote the intelligent upgrade and transformation of power grids. The layout of buildings and electrical equipment in substations, as well as electromagnetic interference, will have a greater impact on 5G signal coverage. In this paper, a three-dimensional simulation model of the substation is first established, and basic parameters of base station planning are determined. Then, a safety function considering equipment service level and an electromagnetic interference calculation method are defined. Finally, a coverage planning algorithm based on electrical equipment service level and received power quality is proposed to improve the reliability of service access and ensure the safe and stable operation of the system. Simulation results show that the algorithm is effective and reliable.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934179","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2805/1/012006
J Török, M Kočiško, M Pollák and R Vandžura
The advent of affordable three-dimensional printers has unlocked new possibilities for small business owners and hobbyists to convert their digital designs into tangible objects. However, during the production process, a lot of material ends up as waste because of improper storage or unused plastic fibers. This paper discusses the existing market products that aim to tackle these issues. Additionally, we introduce a specially designed pair of welding tongs that make it effortless to join plastic fibers utilized in fused deposition modeling printers. The paper presents a prototype of the tongs and provides a summary of the optimal welding temperatures for different printing materials. Finally, the conclusion evaluates the strength of the fibers after the welding process based on the results obtained from a testing mechanism.
{"title":"Manufacturing and testing of pliers to weld 3D printing filaments","authors":"J Török, M Kočiško, M Pollák and R Vandžura","doi":"10.1088/1742-6596/2805/1/012006","DOIUrl":"https://doi.org/10.1088/1742-6596/2805/1/012006","url":null,"abstract":"The advent of affordable three-dimensional printers has unlocked new possibilities for small business owners and hobbyists to convert their digital designs into tangible objects. However, during the production process, a lot of material ends up as waste because of improper storage or unused plastic fibers. This paper discusses the existing market products that aim to tackle these issues. Additionally, we introduce a specially designed pair of welding tongs that make it effortless to join plastic fibers utilized in fused deposition modeling printers. The paper presents a prototype of the tongs and provides a summary of the optimal welding temperatures for different printing materials. Finally, the conclusion evaluates the strength of the fibers after the welding process based on the results obtained from a testing mechanism.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934109","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2805/1/012003
G Sheng, L Zhiyang, Z Ruiteng, Z Lei, Y Chengran, Z Zhengshen and M H Ang
In the realm of conventional affordance detection, the primary objective is to provide insights into the potential uses of objects. However, a significant limitation remains as these conventional methods merely treat affordance detection as a semantic segmentation task, disregarding the crucial aspect of interpreting affordances for actions that can be performed by manipulator. To address this critical gap, we present a novel pipeline incorporating the Intelligent Action Library (IAL) concept. This framework enables affordance interpretation for various manipulation tasks, allowing robots to be taught and guided on how to execute specific actions based on the detected affordances and human-robot interaction. Through real-world experiments, we have demonstrated the ingenuity and dependability of our pipeline, effectively bridging the gap between affordance detection and manipulation task planning and execution. The integration of IAL facilitates a seamless connection between understanding affordances and empowering robots to perform tasks with precision and efficiency. The demo link is available to the public: https://youtu.be/_oBAer2Vl8k
{"title":"Affordance-informed Robotic Manipulation via Intelligent Action Library","authors":"G Sheng, L Zhiyang, Z Ruiteng, Z Lei, Y Chengran, Z Zhengshen and M H Ang","doi":"10.1088/1742-6596/2805/1/012003","DOIUrl":"https://doi.org/10.1088/1742-6596/2805/1/012003","url":null,"abstract":"In the realm of conventional affordance detection, the primary objective is to provide insights into the potential uses of objects. However, a significant limitation remains as these conventional methods merely treat affordance detection as a semantic segmentation task, disregarding the crucial aspect of interpreting affordances for actions that can be performed by manipulator. To address this critical gap, we present a novel pipeline incorporating the Intelligent Action Library (IAL) concept. This framework enables affordance interpretation for various manipulation tasks, allowing robots to be taught and guided on how to execute specific actions based on the detected affordances and human-robot interaction. Through real-world experiments, we have demonstrated the ingenuity and dependability of our pipeline, effectively bridging the gap between affordance detection and manipulation task planning and execution. The integration of IAL facilitates a seamless connection between understanding affordances and empowering robots to perform tasks with precision and efficiency. The demo link is available to the public: https://youtu.be/_oBAer2Vl8k","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934162","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2813/1/011002
All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Single Anonymous • Conference submission management system: Morressier • Number of submissions received: 80 • Number of submissions sent for review: 64 • Number of submissions accepted: 27 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 33.8 • Average number of reviews per paper: 3 • Total number of reviewers involved: 7 • Contact person for queries: Name: Xuexia Ye Email: xx.ye@keoaeic.org Affiliation: AEIC Academic Exchange Information Centre
{"title":"Peer Review Statement","authors":"","doi":"10.1088/1742-6596/2813/1/011002","DOIUrl":"https://doi.org/10.1088/1742-6596/2813/1/011002","url":null,"abstract":"All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Single Anonymous • Conference submission management system: Morressier • Number of submissions received: 80 • Number of submissions sent for review: 64 • Number of submissions accepted: 27 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 33.8 • Average number of reviews per paper: 3 • Total number of reviewers involved: 7 • Contact person for queries: Name: Xuexia Ye Email: xx.ye@keoaeic.org Affiliation: AEIC Academic Exchange Information Centre","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934167","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2813/1/012007
Peng Zhang and Ye Tian
Image segmentation is an important problem in the field of image processing. Traditional multi-threshold image segmentation faces the problems of inefficiency and lack of real-time performance. In order to improve these problems, a Kapur multi-threshold segmentation algorithm based on the improved hybrid krill herd algorithm is proposed, which adopts a novel population iterative approach limited to the top krill to effectively alleviate the phenomenon of excessive aggregation of krill. Building on this foundation, the differential evolutionary algorithm is combined with the krill herd algorithm, which provides a sufficient search range to strengthen the ability of the algorithm to jump out of the local optimum. The experimental results of multi-threshold segmentation on three classical test images show that the proposed improved algorithm can achieve higher segmentation accuracy and quality, and the convergence rate is mostly above 90%, which verifies the reliability and effectiveness of the algorithm in multi-threshold image segmentation problems.
{"title":"Image segmentation based on improved hybrid krill herd algorithm","authors":"Peng Zhang and Ye Tian","doi":"10.1088/1742-6596/2813/1/012007","DOIUrl":"https://doi.org/10.1088/1742-6596/2813/1/012007","url":null,"abstract":"Image segmentation is an important problem in the field of image processing. Traditional multi-threshold image segmentation faces the problems of inefficiency and lack of real-time performance. In order to improve these problems, a Kapur multi-threshold segmentation algorithm based on the improved hybrid krill herd algorithm is proposed, which adopts a novel population iterative approach limited to the top krill to effectively alleviate the phenomenon of excessive aggregation of krill. Building on this foundation, the differential evolutionary algorithm is combined with the krill herd algorithm, which provides a sufficient search range to strengthen the ability of the algorithm to jump out of the local optimum. The experimental results of multi-threshold segmentation on three classical test images show that the proposed improved algorithm can achieve higher segmentation accuracy and quality, and the convergence rate is mostly above 90%, which verifies the reliability and effectiveness of the algorithm in multi-threshold image segmentation problems.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968827","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2805/1/012007
D Q Zuo, Y J Han, H R Fu, S Q Jin, T Ye and Y M Fu
Friction stir welding is an emerging solid-state joining technology. With the advantages of small post-weld deformation and high connection performance, it is widely used in the aerospace field. In this paper, the FSW welding process of 7055-T61 Al and 2197-T8 Al-Li dissimilar T-shaped stiffened panel was investigated. The purpose of this paper is to analyze the influence of tool shoulder structure and welding parameters on the morphology and mechanical properties of T-joints. It is found that compared with the shoulder inner concave surface without spiral, the weld defects of shoulder inner concave surface with spiral are less. When the welding speed v is 60 mm/min, the rotation speed w is 350 r/min and the plunge depth h is 0.21 mm, the transverse tensile strength of T-joint is 408 MPa, which reaches respectively 68.0% and 71.6% of the base materials 7055-T61 and 2197-T8. It shows that the welding quality of T-joints is better when it is implemented under the optimal combination of welding process parameters.
搅拌摩擦焊是一种新兴的固态连接技术。它具有焊后变形小、连接性能高等优点，被广泛应用于航空航天领域。本文研究了 7055-T61 Al 和 2197-T8 Al-Li 异种 T 形加劲板的 FSW 焊接工艺。本文旨在分析工具肩结构和焊接参数对 T 形接头形貌和力学性能的影响。研究发现，与不带螺旋线的刀肩内凹面相比，带螺旋线的刀肩内凹面的焊接缺陷较少。当焊接速度 v 为 60 mm/min、旋转速度 w 为 350 r/min、切入深度 h 为 0.21 mm 时，T 型接头的横向抗拉强度为 408 MPa，分别达到母材 7055-T61 和 2197-T8 的 68.0% 和 71.6%。这表明，在最佳焊接工艺参数组合下，T 型接头的焊接质量更好。
{"title":"Study on the morphology and mechanical properties of dissimilar Al/Al-Li alloy T-joints by friction stir welding","authors":"D Q Zuo, Y J Han, H R Fu, S Q Jin, T Ye and Y M Fu","doi":"10.1088/1742-6596/2805/1/012007","DOIUrl":"https://doi.org/10.1088/1742-6596/2805/1/012007","url":null,"abstract":"Friction stir welding is an emerging solid-state joining technology. With the advantages of small post-weld deformation and high connection performance, it is widely used in the aerospace field. In this paper, the FSW welding process of 7055-T61 Al and 2197-T8 Al-Li dissimilar T-shaped stiffened panel was investigated. The purpose of this paper is to analyze the influence of tool shoulder structure and welding parameters on the morphology and mechanical properties of T-joints. It is found that compared with the shoulder inner concave surface without spiral, the weld defects of shoulder inner concave surface with spiral are less. When the welding speed v is 60 mm/min, the rotation speed w is 350 r/min and the plunge depth h is 0.21 mm, the transverse tensile strength of T-joint is 408 MPa, which reaches respectively 68.0% and 71.6% of the base materials 7055-T61 and 2197-T8. It shows that the welding quality of T-joints is better when it is implemented under the optimal combination of welding process parameters.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934163","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2813/1/012006
Jiangnan Zhao
Amid rapid advancements in autonomous vehicle technology, traffic accidents due to Autonomous Driving Systems (ADS) flaws persist. The critical task of attributing causality to accidents and forecasting potential incidents based on situational data stands at the forefront of enhancing vehicular safety. Addressing these challenges, this study introduces Casual V, a systematic five-phase V-shape approach to constructing a causal Bayesian network (CBN) from massive real-work crash data. To evaluate the proposed approach, a CBN was constructed from more than 300,000 Maryland accident records. Experiments demonstrate that our method is capable of effectively constructing a CBN that provides deep insights into the causal relationships within vehicular accident data.
在自动驾驶汽车技术飞速发展的同时，由于自动驾驶系统（ADS）缺陷而导致的交通事故依然存在。如何根据态势数据归因于事故并预测潜在事故，是提高车辆安全性的关键任务。为应对这些挑战，本研究引入了 Casual V，这是一种系统的五阶段 V 型方法，用于从海量实际碰撞数据中构建因果贝叶斯网络（CBN）。为了评估所提出的方法，我们从 30 多万条马里兰州事故记录中构建了一个 CBN。实验证明，我们的方法能够有效构建 CBN，从而深入揭示车辆事故数据中的因果关系。
{"title":"Causal V: A five-phase causal mining methodology for real-world accident data","authors":"Jiangnan Zhao","doi":"10.1088/1742-6596/2813/1/012006","DOIUrl":"https://doi.org/10.1088/1742-6596/2813/1/012006","url":null,"abstract":"Amid rapid advancements in autonomous vehicle technology, traffic accidents due to Autonomous Driving Systems (ADS) flaws persist. The critical task of attributing causality to accidents and forecasting potential incidents based on situational data stands at the forefront of enhancing vehicular safety. Addressing these challenges, this study introduces Casual V, a systematic five-phase V-shape approach to constructing a causal Bayesian network (CBN) from massive real-work crash data. To evaluate the proposed approach, a CBN was constructed from more than 300,000 Maryland accident records. Experiments demonstrate that our method is capable of effectively constructing a CBN that provides deep insights into the causal relationships within vehicular accident data.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934170","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2805/1/011002
All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double Anonymous • Conference submission management system: Morressier • Number of submissions received: 39 • Number of submissions sent for review: 29 • Number of submissions accepted: 17 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 43.6 • Average number of reviews per paper: 2 • Total number of reviewers involved: 27 • Contact person for queries: Name: Mei Lin Email: neo_meilin@sie.sg Affiliation: SIE, Sinagpore - Excutive Office
{"title":"Peer Review Statement","authors":"","doi":"10.1088/1742-6596/2805/1/011002","DOIUrl":"https://doi.org/10.1088/1742-6596/2805/1/011002","url":null,"abstract":"All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double Anonymous • Conference submission management system: Morressier • Number of submissions received: 39 • Number of submissions sent for review: 29 • Number of submissions accepted: 17 • Acceptance Rate (Submissions Accepted / Submissions Received × 100): 43.6 • Average number of reviews per paper: 2 • Total number of reviewers involved: 27 • Contact person for queries: Name: Mei Lin Email: neo_meilin@sie.sg Affiliation: SIE, Sinagpore - Excutive Office","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968826","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2813/1/012003
Jiaqi Yang, Junbo Gao, Wei Sun and Xin Jing
In recent years, ultra-wideband (UWB) has gradually become a research hot spot in the field of indoor positioning because of its various advantages. Although UWB has such excellent performance in normal environments, the non-line-of-sight propagation of signals in complex indoor environments and the multi-path effect caused by obstacles will affect its positioning accuracy. To solve this problem, we use the fingerprint positioning method and optimize the previously commonly used k-nearest neighbor algorithm in the online matching phase. In this paper, we proposed a triple-filtered k-nearest neighbor algorithm based on sample distance weighting (TFWKNN). Experimental results show that the mean calculation error of TFWKNN is 63.4% less than the k-nearest algorithm, and the proposed algorithm has better prediction stability than other commonly used machine learning regression algorithms.
近年来，超宽带（UWB）因其各种优势逐渐成为室内定位领域的研究热点。虽然 UWB 在正常环境下具有如此优异的性能，但在复杂的室内环境中，信号的非视距传播和障碍物造成的多路径效应会影响其定位精度。为了解决这一问题，我们采用了指纹定位方法，并在在线匹配阶段对之前常用的 k 近邻算法进行了优化。本文提出了一种基于样本距离加权的三重过滤 k 近邻算法（TFWKNN）。实验结果表明，TFWKNN 的平均计算误差比 k 最近邻算法小 63.4%，与其他常用的机器学习回归算法相比，该算法具有更好的预测稳定性。
{"title":"A UWB indoor positioning method based on triple filtering fingerprint matching algorithm","authors":"Jiaqi Yang, Junbo Gao, Wei Sun and Xin Jing","doi":"10.1088/1742-6596/2813/1/012003","DOIUrl":"https://doi.org/10.1088/1742-6596/2813/1/012003","url":null,"abstract":"In recent years, ultra-wideband (UWB) has gradually become a research hot spot in the field of indoor positioning because of its various advantages. Although UWB has such excellent performance in normal environments, the non-line-of-sight propagation of signals in complex indoor environments and the multi-path effect caused by obstacles will affect its positioning accuracy. To solve this problem, we use the fingerprint positioning method and optimize the previously commonly used k-nearest neighbor algorithm in the online matching phase. In this paper, we proposed a triple-filtered k-nearest neighbor algorithm based on sample distance weighting (TFWKNN). Experimental results show that the mean calculation error of TFWKNN is 63.4% less than the k-nearest algorithm, and the proposed algorithm has better prediction stability than other commonly used machine learning regression algorithms.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934166","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}
Pub Date : 2024-07-31DOI: 10.1088/1742-6596/2814/1/012002
Sheng Zhang, Bo Li, Dongjie Xu and Jinyang Zheng
The renewable energy system coupled with hydrogen storage has proven to be a suitable method to reduce the variability of output power and meet stable hydrogen supply demand. However, the excessive cost of hydrogen through water electrolysis using renewable energy restricts its application, and the capacity configuration of electrolyzers and gaseous hydrogen storage tanks is affected by the immoderate reliance on engineering experience, leading to the unbalance of generation side and hydrogen demand side. In this study, a 300 MW photovoltaic power generation system has been proposed to fit the raw material demand of a synthetic ammonia plant, i.e., around 1000 kg/h hydrogen. A simplified mathematical model including an electrolyzer and a hydrogen tank is proposed to get the best capacity configuration. The levelized cost of hydrogen (LCOH) is chosen as an optimization function, and a particle swarm optimization algorithm is adopted to get the optimal results. The simulation results indicate that the optimal capacity configuration is 176.36 MW for the electrolyzer and 14644.2 Nm3 for the hydrogen tank, and the LCOH is 30.31 Yuan/kg. Compared with the empirical model, the LCOH based on the optimization model is 8.87% lower than that of the empirical model, indicating better economic benefits of the optimization model.
{"title":"Capacity optimization of a large-scale photovoltaic power generation system coupled with hydrogen production and storage based on economic analysis","authors":"Sheng Zhang, Bo Li, Dongjie Xu and Jinyang Zheng","doi":"10.1088/1742-6596/2814/1/012002","DOIUrl":"https://doi.org/10.1088/1742-6596/2814/1/012002","url":null,"abstract":"The renewable energy system coupled with hydrogen storage has proven to be a suitable method to reduce the variability of output power and meet stable hydrogen supply demand. However, the excessive cost of hydrogen through water electrolysis using renewable energy restricts its application, and the capacity configuration of electrolyzers and gaseous hydrogen storage tanks is affected by the immoderate reliance on engineering experience, leading to the unbalance of generation side and hydrogen demand side. In this study, a 300 MW photovoltaic power generation system has been proposed to fit the raw material demand of a synthetic ammonia plant, i.e., around 1000 kg/h hydrogen. A simplified mathematical model including an electrolyzer and a hydrogen tank is proposed to get the best capacity configuration. The levelized cost of hydrogen (LCOH) is chosen as an optimization function, and a particle swarm optimization algorithm is adopted to get the optimal results. The simulation results indicate that the optimal capacity configuration is 176.36 MW for the electrolyzer and 14644.2 Nm3 for the hydrogen tank, and the LCOH is 30.31 Yuan/kg. Compared with the empirical model, the LCOH based on the optimization model is 8.87% lower than that of the empirical model, indicating better economic benefits of the optimization model.","PeriodicalId":16821,"journal":{"name":"Journal of Physics: Conference Series","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141934176","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}
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