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Global Energy Interconnection 2024年第2期7卷 117-129页

作者： Xiaoyun Deng yongdong chen Dongchuan Fan Youbo Liu Chao Ma College of Electrical Engineering Sichuan UniversityChengdu 610065P.R.China State Grid Sichuan Comprehensive Energy Service Co.Ltd. Chengdu 610072P.R.China

In this study,a novel residential virtual power plant(RVPP)scheduling method that leverages a gate recurrent unit(GRU)-integrated deep reinforcement learning(DRL)algorithm is *** the proposed scheme,the GRU-integrated DRL algorithm guides the RVPP to participate effectively in both the day-ahead and real-time markets,lowering the electricity purchase costs and consumption risks for *** Lagrangian relaxation technique is introduced to transform the constrained Markov decision process(CMDP)into an unconstrained optimization problem,which guarantees that the constraints are strictly satisfied without determining the penalty ***,to enhance the scalability of the constrained soft actor-critic(CSAC)-based RVPP scheduling approach,a fully distributed scheduling architecture was designed to enable plug-and-play in the residential distributed energy resources(RDER).Case studies performed on the constructed RVPP scenario validated the performance of the proposed methodology in enhancing the responsiveness of the RDER to power tariffs,balancing the supply and demand of the power grid,and ensuring customer comfort.

关键词： Residential virtual power plant Residential distributed energy resource Constrained soft actor-critic Fully distributed scheduling strategy

Electronic regulation to achieve efficient anaerobic digestion of organic fraction of municipal solid waste(OFMSW):strategies,challenges and potential solutions

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Frontiers of Environmental Science & Engineering 2024年第4期18卷 159-165页

作者： yongdong chen Hong Wang Parisa Ghofrani-Isfahani Li Gu Xiaoguang Liu Xiaohu Dai State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Tongji UniversityShanghai 200092China Department of Chemical and Biochemical Engineering Technical University of DenmarkKgs Lyngby DK-2800Denmark College of Environment and Ecology Chongqing UniversityChongqing 400045China

Anaerobic digestion(AD)of organic fraction of municipal solid waste(OFMSW)is prone to system breakdown under high organic loading rates(OLRs)condition,which subsequently reduces the efficiency of digestion process and results in substantial economic *** this perspective paper,the substances metabolisms,electrons flow,as well as microbial interaction mechanisms within AD process are comprehensively discussed,and the underlying bottleneck that causes inefficient methane production is identified,which is“electrons surplus”.Systems encountering severe electron surplus are at risk of process failure,making it crucial to proactively prevent this phenomenon through appropriate *** this basis,the present perspective proposes three potential electronic regulation strategies to prevent electrons surplus,namely,electron shunt,accelerating electron transfer and regulating methanogenic metabolism pathway,and presents specific methodologies for each ***,the potential solutions to challenges that may occur during the electronic regulation process are also presented in this *** perspective aims to provide innovative approaches to achieve the efficient and stable operation of OFMSW anaerobic digestion,especially under high OLRs condition.

关键词： Anaerobic digestion Electrons surplus Electronic regulation Electrons shunt Electron transfer Methanogenic metabolism pathway

The Pairing Analysis Improvement of Magnetized Structure in Electromagnetic Bulging Process in Case of Tube with Field Shaper

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Journal of Electromagnetic Analysis and Applications 2024年第4期16卷 43-67页

作者： Blaise Kevine Lenz Soronga Zhanqian Zhan Jing Liu Jonas Asamoah Mohamed Bangali Bangura Matala Makiese N’kodia Kambani Chrionie Md Jobayer Hossain yongdong chen Program Debugging and Design Department Guangdong Lyric Robot Automation Co. Ltd Huizhou China Electrical and Automation Department China Three Gorges University Yichang China Electronic Department Power Electronic Research Center University of Kent Giles Ln Canterbury UK Program Debugging Department Guangdong Lyric Robot Automation Co. Ltd. Huizhou China Electrical and Computer Engineering Department South China University of Technology Guangzhou China World Standardization Certification and Testing Group (Shenzhen) Co. Ltd. Shenzhen China Electrical Engineering-Power System Mapon University Kindu Democratic Republic of Congo Department of Economy Managment School of Management Computer and Telecomunication Rabbat Marocco Materials Visual Calibration Department Guangdong Lyric Robot Automation Co. Ltd. Huizhou China Program Design Department Guangdong Lyric Robot Automation Co. Ltd. Huizhou China

In the current practical science, the accuracy in the formability of metal alloys being the goal when using electromagnetic forming (EMF) technology, which is a high-speed processing technology that uses Lorentz forces to achieve plastic deformation of sheet metal;according to the previous analysis, the results have shown that in most cases, the Lorentz force acting on the workpiece (metal) is not uniform, there are uneven axial deformations of the metal plates which prevent the rapid advancement of today’s technology. In this article, we presented some advanced analyzes which will lead us to improve the technical solution for the problems of non-uniform axial deformations of the metals in the traditional tube electromagnetic forming technology (EMF). A field shaper is used as a practical forming tool to influence the magnetic field and magnetic pressure distribution, thereby improving the forming ability and result during the electromagnetic forming (EMF) process and we see that induced eddy current control is realized by changing the structural parameters of the magnetic field shaper;which improves the strength and controllability of the magnetic force that acts on the workpiece;thereby a greater radial magnetic pressure can be achieved with field shaper than the case without it;the field shaper regulates the electromagnetic force, the distribution of the magnetic pressure decreases, and the uniform force area of the tube increases which effectively enhances the uniform range of the pipe electromagnetic bulging and the electromagnetic induction coupling between the coil and the metallic workpiece is generally required to produce the Lorentz forces. Using COMSOL Multiphysics® simulation software helped us to accurately represent the real world, simulating multiple physical effects that happened in this model during the process.

关键词： Electromagnetic Forming Field Shaper Lorentz Force Magnetic Pressure Distribution

融合外部注意力机制的序列到点非侵入式负荷分解

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上海交通大学学报 2024年第6期58卷 846-854页

作者：李利娟刘海刘红良张青松陈永东湘潭大学自动化与电子信息学院湖南湘潭411105 湖南国家应用数学中心湖南湘潭411105

非侵入式负荷分解可以深度挖掘用户电力消耗数据蕴含的信息价值,为电力设备故障监测、需求响应等决策分析提供重要参考.为有效解决非侵入式负荷分解算法训练时间成本与分解精度间的冲突,提出一种融合外部注意力机制的序列到点非侵入式... 详细信息

非侵入式负荷分解可以深度挖掘用户电力消耗数据蕴含的信息价值,为电力设备故障监测、需求响应等决策分析提供重要参考.为有效解决非侵入式负荷分解算法训练时间成本与分解精度间的冲突,提出一种融合外部注意力机制的序列到点非侵入式负荷分解算法.首先,将总负荷功率消耗序列进行数据清理、标准化等预处理,以固定窗口长度构建训练输入数据,输入数据通过编码层自动提取设备特征;然后,设计外部注意力机制增强重要特征权值;最终,输入到解码层得到负荷分解结果.利用REDD与UK-DALE两种公开数据集进行模型仿真计算,在信号聚合误差、平均绝对误差、标准化分解误差指标、模型分解曲线、特征图和用户耗能等方面进行对比分析,本文模型克服了卷积层注意力分散的缺点,增强了对有效信息的提取与利用能力,在未增加训练时间成本的前提下具有更高的分解精度.

关键词：非侵入式负荷分解外部注意力机制神经网络序列到点

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基于5G的冷藏车保鲜环境远程智能调控系统设计

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包装与食品机械 2024年第3期42卷 91-96页

作者：周兵陈永东王严冬邓静合肥通用机械研究院有限公司合肥230031

为解决当前冷藏车厢内环境调控设计复杂的问题,并进一步提升冷藏车远程智能运维水平,结合蓄冷式冷藏车设计,完成冷藏车保鲜环境远程智能调控系统开发。从数据层、机制层和物理层建立调控系统架构,基于货架期理论建立环境参数调控目标数... 详细信息

为解决当前冷藏车厢内环境调控设计复杂的问题,并进一步提升冷藏车远程智能运维水平,结合蓄冷式冷藏车设计,完成冷藏车保鲜环境远程智能调控系统开发。从数据层、机制层和物理层建立调控系统架构,基于货架期理论建立环境参数调控目标数据库,通过整合神经网络、模糊控制和PID算法形成协同智能化调控方案。运用5G和PLC技术,建构多终端监控和调控平台。冷藏车静态调控性能检验表明,冷量分布一致性较好,厢内环境温度日间最大温升速率小于0.4℃/h,超上限温度控制在0.5℃内。经冷藏车动态运行测试,食品货物保鲜效果良好。研究可为生鲜冷链运输行业提升运输品质提供借鉴。

关键词：冷藏车蓄冷保鲜 5G技术远程调控

SOFC阴极空气预热器耦合传热特性及参数影响分析

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流体机械 2024年第6期52卷 25-32页

作者：宋嘉梁陈永东于改革邹宏伟合肥通用机械研究院有限公司合肥230031

针对固体氧化物燃料电池(SOFC)高温区碳化硅基阴极空气预热器这一新型换热设备,开展极高温工况下的烟气-空气的辐射-导热-对流耦合传热特性及参数影响分析,基于ANSYS Fluent采用DO模型分析高温气体辐射换热及气体吸收系数对换热器性能... 详细信息

针对固体氧化物燃料电池(SOFC)高温区碳化硅基阴极空气预热器这一新型换热设备,开展极高温工况下的烟气-空气的辐射-导热-对流耦合传热特性及参数影响分析,基于ANSYS Fluent采用DO模型分析高温气体辐射换热及气体吸收系数对换热器性能的影响,并与S2S模型及不考虑辐射换热模型的计算结果进行对比;同时研究了壁面发射率及烟气进口温度对耦合传热的影响规律。结果表明,烟气进口温度800~1100℃条件下,辐射换热的影响较大,但烟气吸收系数及气体辐射的影响可以忽略;壁面发射率、烟气入口温度对耦合传热的影响非常明显,壁面发射率和烟气入口温度越高,空气出口温度越高。研究结果可为碳化硅基阴极空气预热器的设计提供理论依据。

关键词： SOFC 阴极空气预热器碳化硅热辐射耦合传热特性

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新型工业微反应器的开发研究

流体机械 2024年第2期52卷 40-47页

作者：张秋双陈永东韩冰川于改革合肥通用机械研究院有限公司合肥230031

针对目前工业领域的微反应器存在处理能力小、设备耐压耐温能力有限、紧凑度低和流速低等缺陷,开发了一种应用于特定领域的新型工业微反应器,“蚀刻+扩散焊”工艺使其具有极好的耐压耐温性能,制造工艺使设备高度紧凑且内部通道灵活多变... 详细信息

针对目前工业领域的微反应器存在处理能力小、设备耐压耐温能力有限、紧凑度低和流速低等缺陷,开发了一种应用于特定领域的新型工业微反应器,“蚀刻+扩散焊”工艺使其具有极好的耐压耐温性能,制造工艺使设备高度紧凑且内部通道灵活多变,在特定的化工工艺中具有巨大的优越性。针对新型工业微反应器的开发提出了拱形混合结构(AFMS),矩形混合结构(RFMS)和碰撞流混合结构(CFMS)3种混合结构,采用数值模拟方法研究其混合性能。结果表明,混合效果随着雷诺数的增加而增加,在湍流条件下可以获得理想的混合效果;与AFMS相比,RFMS和CFMS在一定程度上可以促进混合过程,但会带来较大的压力损失,混合指数与压降比进一步验证了AFMS是最佳结构;当100

关键词：新型微反应器混合指数压降数值模拟

Influence of surface Ce/Zr ratio on formation of κ-Ce_(2)Zr_(2)O_(8) superstructure and its application in three-way catalysis

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Journal of Rare Earths 2023年第1期41卷 67-76页

作者： Jie Deng Shanshan Li Xinyi Yin Mengchen Li Jianli Wang yongdong chen Yaoqiang chen College of Chemistry and Chemical Engineering Southwest Petroleum UniversityChengdu 610500China College of Chemistry Sichuan UniversityChengdu 610064China National Engineering Research Center for Flue Gas Desulfurization Sichuan UniversityChengdu 610064China

Ceria-zirconia based(CZ) materials are still a crucial component of three-way catalysts(TWCs) *** with traditional cubic or tetragonal phase,CZ material with pyrochlore-type κ-Ce_(2)Zr_(2)O_(8) phase shows an excellent oxygen storage capacity,and thus is examined as a promising material for developing *** the remarkable surface Ce/Zr ratio change during the κ-Ce_(2)Zr_(2)O_(8) formation,we investigated the effects of surface Ce/Zr ratio on the formation of κ-Ce_(2)Zr_(2)O_(8) and on the supported Pdonly three-way *** and transmission electron microscopy(TEM) results demonstrate that partial κ-Ce_(2)Zr_(2)O_(8) structure is formed in the three oxides,and the content of κ-Ce_(2)Zr_(2)O_(8) structure increases with increasing surface Ce/Zr ratio,but its stability *** thermal aging,the proportions of Ce^(3+) and oxidized palladium(Pd^(δ+)+Pd^(2+)) in the catalysts,which are shown to be positively correlated with catalytic activity,follow the same sequence as the stability of κ-Ce_(2)Zr_(2)O_(8),namely Pd/M0.33 ROa> Pd/M0.4 ROa> Pd/CeM0.33 *** particular,Pd/M0.33 RO,which possesses 100%((Pd^(δ+)+Pd^(2+))/Pd) even after thermal aging at 900℃ for 4 h,owing to the strengthened metal-support interaction by the presence of stable κ-Ce_(2)Zr_(2)O_(8),shows the best catalytic *** work is instructive to the application of κ-Ce_(2)Zr_(2)O_(8) in three-way catalysis.

关键词： Ceria-zirconia κ-Ce_(2)Zr_(2)O_(8) Ce/Zr ratio Three-way catalyst Rare earths

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金融支持林草碳汇路径及创新策略研究

华北金融 2024年第6期 47-56,82页

作者：邹寅寅陈永冬尹小莉中国人民银行甘孜藏族自治州分行四川甘孜藏族自治州626000

伴随世界主要国家碳中和目标的确定,以林草碳汇为主的碳交易方式,在国际社会应对气候变化市场工具中越来越受到重视,全球林草碳汇呈现出迅猛发展势头。2023年我国政府工作报告特别指出,要推动发展方式绿色转型,提升生态系统碳汇能力,加... 详细信息

伴随世界主要国家碳中和目标的确定,以林草碳汇为主的碳交易方式,在国际社会应对气候变化市场工具中越来越受到重视,全球林草碳汇呈现出迅猛发展势头。2023年我国政府工作报告特别指出,要推动发展方式绿色转型,提升生态系统碳汇能力,加强发展绿色金融支持。本文通过对当前我国金融支持林草碳汇发展现状的评估分析研究,借鉴国际国内金融支持林草碳汇有效方式,找出我国金融支持林草碳汇发展工作症结,探索金融支持林草碳汇经营管理的新路径和新模式,并以发展多种碳金融普惠形式为重点,积极构建林草碳汇金融市场体系,打造生态产品价值实现金融机制模板。

关键词：林草碳汇金融支持路径选择创新策略

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Continuous dimethyl carbonate synthesis from CO_(2) and methanol over Bi_(x)Ce_(1-x)O_(δ) monoliths:Effect of bismuth doping on population of oxygen vacancies,activity,and reaction pathway

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Nano Research 2022年第2期15卷 1366-1374页

作者： yongdong chen Yue Li Wei chen Wen Wu Xu Zhong-kang Han Ammara Waheed Zhongbin Ye Gao Li Alfons Baiker College of Chemistry and Chemical Engineering Southwest Petroleum UniversityChengdu 610500China School of Physical Science and Technology Ningbo UniversityNingbo 315211China Center for Energy Science and Technology Skolkovo Institute of Science and TechnologySkolkovo Innovation CenterMoscow 143026Russia State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China ETH Zurich Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringHonggerbergHClCH-8093 ZurichSwitzerland

We evaluated bismuth doped cerium oxide catalysts for the continuous synthesis of dimethyl carbonate(DMC)from methanol and carbon dioxide in the absence of a dehydrating ***_(x)Ce_(1-x)O_(δ)nanocomposites of various compositions(x=0.06-0.24)were coated on a ceramic honeycomb and their structural and catalytic properties were *** incorporation of Bi species into the CeO_(2) lattice facilitated controlling of the surface population of oxygen vacancies,which is shown to play a crucial role in the mechanism of this reaction and is an important parameter for the design of ceria-based *** DMC production rate of the Bi_(x)Ce_(1-x)O_(δ) catalysts was found to be strongly enhanced with increasing Ov *** concentration of oxygen vacancies exhibited a maximum for Bi_(0.12)Ce_(0.88)O_(δ),which afforded the highest DMC production ***-term tests showed stable activity and selectivity of this catalyst over 45 h on-stream at 140°C and a gas-hourly space velocity of 2,880 mL·g_(cat)^(-1)·h^(-1).In-situ modulation excitation diffuse reflection Fourier transform infrared spectroscopy and first-principle calculations indicate that the DMC synthesis occurs through reaction of a bidentate carbonate intermediate with the activated methoxy(-OCH_(3))*** activation of C0_(2) to form the bidentate carbonate intermediate on the oxygen vacancy sites is identified as highest energy barrier in the reaction pathway and thus is likely the rate-determining step.

关键词： dimethyl carbonate synthesis bismuth-cerium oxides monolithic catalyst oxygen vacancies reaction mechanism