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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 405-414页

作者： Hao Liu fengwei liang Tianyu Hu Jichao Hong Huimin Ma School of Computer and Communication Engineering University of Science and Technology BeijingBeijingChina School of Mechanical Engineering University of Science and Technology BeijingBeijingChina IEEE

Accurate prediction of the state-of-charge(SOC)of battery energy storage system(BESS)is critical for its safety and lifespan in electric *** overcome the imbalance of existing methods between multi-scale feature fusion and global feature extraction,this paper introduces a novel multi-scale fusion(MSF)model based on gated recurrent unit(GRU),which is specifically designed for complex multi-step SOC prediction in practical *** correlation analysis is first employed to identify SOC-related *** parameters are then input into a multi-layer GRU for point-wise feature ***,the parameters undergo patching before entering a dual-stage multi-layer GRU,thus enabling the model to capture nuanced information across varying time ***,by means of adaptive weight fusion and a fully connected network,multi-step SOC predictions are *** extensive validation over multiple days,it is illustrated that the proposed model achieves an absolute error of less than 1.5%in real-time SOC prediction.

关键词： Electric vehicle battery energy storage system(BESS) state-of-charge(SOC)prediction gated recurrent unit(GRU) multi-scale fusion(MSF).

Identification of FIR systems under difference-driven scheduled quantized observations

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Control Theory and Technology 2024年第2期22卷 163-172页

作者： Dong liang Ruizhe Jia fengwei Jing Yong Song Jin Guo School of Automation and Electrical Engineering University of Science and Technology BeijingBeijing100083China Key Laboratory of Knowledge Automation for Industrial Processes Ministry of EducationBeijing100083China National Engineering Research Center for Advanced Rolling and Intelligent Manufacturing University of Science and Technology BeijingBeijing100083China

In networked system identification,how to effectively use communication resources and improve convergence speed is the focus of ***,there is an inherent contradiction between the two *** this paper,the event-driven communication is used to save communication resources for the identification of finite impulse response systems,and the input design is carried out to meet the requirements of convergence ***,a difference-driven communication is ***,the performance of the communication mechanism is analyzed,and the calculation method of its communication rate is *** that,according to the communication rate and the convergence rate of the identification algorithm,the input design problem is transformed into a constrained optimization problem,and the algorithm for finding the optimal solution is *** addition,considering the case that the output is quantized by multiple thresholds,the way to calculate its communication rate is given and the influence of threshold number on communication rate is ***,the effectiveness of the algorithm is verified by simulation.

关键词： System identification FIR system Difference-driven Quantized observation

Research progress,trends and prospects of big data technology for new energy power and energy storage system

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能源评论(英文) 2023年第3期2卷 45-50页

作者： Jichao Hong fengwei liang Haixu Yang School of Mechanical Engineering University of Science and Technology BeijingBeijing100083China Shunde Innovation School of University of Science and Technology Beijing FoshanGuangdong528000China

The development of new energy industry is an essential guarantee for the sustainable development of society,and big data technology can enable new energy ***,this paper presents an in-depth analysis and discussion of big data technology in new energy power and energy storage ***,the current status of big data technology application is discussed based on power generation,grid and user side,while future development trends are proposed based on the characteristics of big data ***,a comprehensive cloud-platform-based new energy power and energy storage system is proposed,which efficiently combines new energy power generation,consumption,and transmission sides to optimize energy allocation and improve energy utilization *** paper aims to provide certain guidance significance for new energy research and application.

关键词： New energy Energy storage Big data Energy allocation Energy utilization

Recent Progress,Challenge and Prospects of Data-Driven Methods for PEM Fuel Cell Remaining Useful Lifetime Prediction

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Recent Progress,Challenge and Prospects of Data-Driven Metho...

大数据驱动动力电池智能安全管理与控制方法研究

2022中国汽车工程学会年会暨展览会

作者： liang fengwei Hong Jichao School of Mechanical Engineering University of Science and Technology Beijing Shunde Graduate School of University of Science and Technology Beijing

The proton exchange membrane fuel cell(PEMFC) is an environmentally friendly power generator with essential applications in power stations and fuel cell vehicles.A crucial factor affecting the commercialization of fuel cells is the fuel cell's remaining useful lifetime(RUL).Material degradation,abnormal operation,and dynamic load disturbances can affect the RUL.A fast prognostic health management strategy(FPHMS) can effectively estimate the RUL of the PEMFC and make the right actions in time to extend the *** recent years,data-driven approaches have had deep applications in other *** have also been intensively studied in ***,this paper aims to provide readers with a guide and review of data-driven solutions for RUL ***,though concluding the current status and prospects of applying data-driven approaches in fuel cell remaining life prediction to Promote the industrialization of fuel cells.

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汽车工程 2023年第10期45卷 1845-1861,1907页

作者：洪吉超梁峰伟杨海旭李克瑞北京科技大学机械工程学院北京100083 北京科技大学顺德创新学院佛山528000

针对新能源汽车动力电池安全风险管理与控制研究,本文详细讨论了动力电池故障机理及类型,基于大数据统计分析阐明了动力电池一致性与安全性的耦合关系,总结了数据驱动的动力电池安全状态预测与故障诊断预警方法,最后提出一种基于“车-... 详细信息

针对新能源汽车动力电池安全风险管理与控制研究,本文详细讨论了动力电池故障机理及类型,基于大数据统计分析阐明了动力电池一致性与安全性的耦合关系,总结了数据驱动的动力电池安全状态预测与故障诊断预警方法,最后提出一种基于“车-云”融合的实车动力电池系统安全控制策略。本文旨在为实现实车动力电池安全状态实时监控与风险预警提供理论指导。

关键词：电动汽车动力电池故障诊断数据驱动控制策略

运营商业务平台安全域防护策略及安全基线设计

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广西通信技术 2013年第3期 1-4,14页

作者：梁凤薇广西通信规划设计咨询有限公司广西南宁530007

面对日益增大的网络安全威胁,电信运营商需要提高业务平台的安全防护能力。结合电信运营商业务平台的系统现状,在对各类业务平台进行安全分级的基础上,规范划分不同网络结构业务平台的安全域,并针对不同安全等级平台设计合理可控的安全... 详细信息

面对日益增大的网络安全威胁,电信运营商需要提高业务平台的安全防护能力。结合电信运营商业务平台的系统现状,在对各类业务平台进行安全分级的基础上,规范划分不同网络结构业务平台的安全域,并针对不同安全等级平台设计合理可控的安全防护策略和安全基线,使业务平台形成安全、清晰、便于管控的网络布局和系统架构。

关键词：业务平台安全域安全基线安全策略

Hollow Multishelled Structure: Synthesis Chemistry and Application

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Chemical Research in Chinese Universities 2024年第3期40卷 346-393页

作者： MAO Dan WANG Chao LI Wei ZHOU liang LIU Jian ZHENG Zjian ZHAO Yong CAO An-min WANG Shutao HUANG Jiaxing HUO fengwei CHEN Hongyu MAI Liqiang YU Ranbo WANG Lianzhou LU Yunfeng YU Chengzhong YANG Qihua YANG Zhenzhong ZENG Hua Chun ZHAO Hujun TANG Zhiyong ZHAO Dongyuan WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChineseAcademy of SciencesBeijing 100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBejing 100190P.R.China School of Fashion and Textiles The Hong Kong Polytechnic UniversityHong Kong SARP.R.China Department of Chemistry Fudan UniversityShanghai 200433P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023P.R.China School of Chemistry Beihang UniversityBejing 100191P.R.China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190P.R.China CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190P.R.China School of Engineering Westlake UniversityHangzhou 310024P.R.China School of Flexible Electronics(Future Technologies) Nanjing Tech UniversityNanjing 211816P.R.China School of Science Westlake UniversityHangzhou 310024P.R.China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070P.R.China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083P.R.China School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueensland 4072Australia College of Life Science and Technology Bejing University of Chemical TechnologyBejing 100029P.R.China School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200241P.R.China College of Life Sciences Zhejiang Normal UniversityJinhua 321004P.R.China Department of Chemical Engineering Tsinghua UniversityBeijing 100

Hollow multishelled structure(HoMS),a promising and complex multifunctional structural system,features at least two shells that are separated by internal *** unique structure endows it with numerous advantages including low density,high loading capacity,large specific surface area,facilitated mass transport,and multiple spatial confinement *** the past twenty years,benefiting from the booming development of synthesis methods,various HoMS materials have been prepared and show promising applications in diverse areas.

关键词： Hollow multishelled structure Synthesis chemistry Energy storage Catalysis Electromagnetic wave absorption Drug delivery Sensor

快充下锂离子电池析锂机制、模型及快充策略研究

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稀有金属 2022年第9期46卷 1235-1243页

作者：梁峰伟夏煜华张玉龙赵树朋杨世春刘新华河北农业大学机电工程学院河北保定071001 帝国理工大学地球科学与工程学院伦敦SW72AZ 北京航空航天大学交通科学与工程学院北京100191

近年来,随着气候变化和化石资源的匮乏,汽车工业重心逐渐由内燃机车转变到新能源汽车上。其中,电动汽车因其绿色、清洁和环保的特性得到迅猛发展,锂离子电池以其高能量密度、高功率密度、低自放电率等特性,成为商业化电动汽车首选的动... 详细信息

近年来,随着气候变化和化石资源的匮乏,汽车工业重心逐渐由内燃机车转变到新能源汽车上。其中,电动汽车因其绿色、清洁和环保的特性得到迅猛发展,锂离子电池以其高能量密度、高功率密度、低自放电率等特性,成为商业化电动汽车首选的动力来源之一。尤其在市场需求驱动下,电动汽车续航里程逐步增长,锂离子电池不仅需要具备较高的电池容量,还需具备快速充电的能力,这对动力电池系统的安全、长寿命运行提出了更高的要求。锂离子电池的衰减老化是造成电动汽车“里程焦虑”的根源,也是电动汽车安全事故发生的重要原因,尤其在较低温度和大功率充电的条件下会引起电池的容量和输出功率等性能加速衰减的问题。本文着眼于现有文献的回顾与总结,针对锂离子电池在快速充电的条件下析锂机制、模型和快速充电的优化策略进行了综合分析总结,以期为高效无损快充的实现提供参考。

关键词：锂离子电池快充析锂模型优化策略

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新能源汽车产业及其技术发展现状与展望

科技导报 2023年第5期41卷 49-59页

作者：洪吉超梁峰伟杨京松李克瑞北京科技大学机械工程学院北京100083 北京科技大学顺德创新学院佛山528000

发展新能源汽车、推进新能源汽车产业化,对解决传统燃油汽车高污染、高耗能、高排放问题具有重要意义。以新能源汽车为研究对象,从新能源汽车发展背景、整车和三电系统综合分析了中国新能源汽车目前的产业与技术发展现状:提出了中国新... 详细信息

发展新能源汽车、推进新能源汽车产业化,对解决传统燃油汽车高污染、高耗能、高排放问题具有重要意义。以新能源汽车为研究对象,从新能源汽车发展背景、整车和三电系统综合分析了中国新能源汽车目前的产业与技术发展现状:提出了中国新能源汽车目前存在基础设施建设尚不完善、电池回收利用率低、基础器件关键技术未掌握等问题,探讨了新能源汽车技术与产业未来的发展方向和规划。

关键词：新能源汽车产业发展技术趋势

经腹部B超与经阴道B超诊断异位妊娠的临床研究

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临床医学工程 2019年第2期26卷 137-138页

作者：朱秀蕾梁凤伟刘月梅云浮市人民医院超声科广东云浮527300

目的观察经腹部B超和经阴道B超对异位妊娠的诊断价值。方法纳入我院2014年12月至2017年12月收治的疑似异位妊娠患者120例,均进行经腹部B超检查、经阴道B超检查以及病理学检查,以病理学检查为金标准,观察经腹部B超和经阴道B超诊断异位妊... 详细信息

目的观察经腹部B超和经阴道B超对异位妊娠的诊断价值。方法纳入我院2014年12月至2017年12月收治的疑似异位妊娠患者120例,均进行经腹部B超检查、经阴道B超检查以及病理学检查,以病理学检查为金标准,观察经腹部B超和经阴道B超诊断异位妊娠的敏感性和特异性,采用Kappa检验判断经腹部B超和经阴道B超与病理学检查的一致性。结果病理检查发现120例疑似患者中共有113例异位妊娠患者。以病理诊断作为金标准,经腹部B超的诊断敏感性为95.58%(108/113),特异性为71.43%(5/7);经阴道B超的诊断敏感性为99.12%(112/113),特异性为85.71%(6/7)。经Kappa检验,经腹部B超和病理诊断的Kappa值=0.558, P <0.01;经阴道B超和病理诊断的Kappa值=0.848, P <0.01;经阴道B超和病理诊断具有较高的一致性。结论经阴道B超诊断异位妊娠较经腹部B超的敏感性和特异性高,与病理诊断具有较高的一致性。

关键词：经腹部B超经阴道B超异位妊娠诊断一致性