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IEEE International Conference on Power and Power and Renewable Energy (ICPRE)

作者： Xiaojuan Yang Suhua Lou Yuanyuan Zhao Chongtao Bai Ting Huang State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan China School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan China State Grid Fujian Electric Power Research Institute Fuzhou China

Under the background of carbon peaking, carbon neutrality and integrated development of transportation and energy, and in view of the current situation of high emission and high energy consumption in expressway service area (ESA), an optimization operation model of integrated energy system (IES) including gas turbine, wind, photovoltaic, energy storage system and hydrogen is established with the lowest system operation cost and energy purchase cost as the objective function, which introduces power to gas and fuel cell to achieve bidirectional coupling of electricity and hydrogen. Then this paper takes a large expressway service area in the northwest of China as an example and sets different scenarios for example analysis. The simulation results show that the total operation cost of the system is greatly reduced and the utilization rate of renewable energy is effectively increased, which indicate that the proposed model can improve the system operation economy, green and low carbon development, and diverse interactivity while meeting the energy requirements of electricity and hydrogen in expressway service area. It has significant application value in promoting sustainable development in the fields of transportation, energy and power.

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Study on Performance Modification of Insulation Wraps for Power Transmission Line Corona Noise Prevention

Study on Performance Modification of Insulation Wraps for Po...

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2021 International Conference on Intelligent Computing, Automation and Systems, ICICAS 2021

作者： Yiyi, Liu Wei, Chen Dan, Lu Junjie, Wu Wei, Qi State Grid Hunan Electric Power Corporation Research Institute State Grid Laboratory of Electric Equipment Noise and Vibration Research Changsha China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan China

ISBN: (纸本)9781665428101

Study and prevention of transmission line corona noise has become an important means to effectively promote the environmental friendliness and energy saving of transmission line. Studies have shown that using hydrophilic coating treatment on the conductor surface, so that under the condition of precipitation, the rainwater can be evenly distributed on the conductor surface to reduce the formation density of water droplets, which can weaken the impact of raindrops on the curvature radius of the conductor. As a result, less distorted electric field and soft noise were produced, leading to reduce corona noise ultimately. The greater hydrophilicity of the conductor surface, the more significant the reduction of corona noise is. In this paper, experiments have validated that the modification of nano aluminum oxide by electron beam radiation graft technology can improve its surface reactivity, promote its dispersion and bonding ability in RTV rubber matrix, and then elevate the hydrophobicity, mechanical properties and aging resistance of modified RTV silicone rubber. In addition, specific properties of thermal conductivity and hydrophobicity can be improved by further adding functional monomers. © 2021 IEEE.

关键词： Electric lines

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Facile Synthesis of a Novel Spinel Ni2vo4/Acetylene Black Composite as an Excellent Negative Material for Lithium-Ion Batteries

SSRN

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SSRN 2023年

作者： Zhang, Dan Zhang, Chunyan Shi, Xinyu Xu, Huishi Luo, Baomin Liu, Xiaodi Liu, Guangyin Li, Liping Yu, Chuang College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang473061 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun130012 China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Hubei Wuhan430074 China

Spinel nickel vanadate has not been synthesized and applied to anode for lithium-ion batteries on account of the missing synthetic route. In the study, a simple route is created to obtain a new spinel Ni2VO4/acetylene black composite. The obtained Ni2VO4 nanoparticles are ultrasmall and anchored on acetylene black, which could markedly mitigate the volume alteration and elevate electrochemical reaction kinetics. For this reason, a large reversible capacity of 511 mAh g-1 was maintained at 350th cycle under 1 A g-1. © 2023, The Authors. All rights reserved.

关键词： Anodes

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Carbon quantum dots modified TiO_(2) composites for hydrogen production and selective glucose photoreforming

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Journal of Energy Chemistry 2022年第1期31卷 201-208,I0006页

作者： Heng Zhao Xinti Yu Chao-Fan Li Wenbei Yu Aiguo Wang Zhi-Yi Hu Steve Larter Yu Li Md Golam Kibria Jinguang Hu Department of Chemical and Petroleum Engineering University of Calgary2500 University DriveNWCalgaryAlberta T2N 1N4Canada State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Nanostructure Research Centre Wuhan University of Technology.Wuhan 430070Hubei.China Department of Geosciences University of Calgary2500 University DriveNWCalgaryAlberta T2N 1N4Canada

Lignocellulosic biomass photoreforming is a promising and alternative strategy for both sustainable H_(2) production and biomass valorization with infinite solar ***,harsh reaction conditions(high alkalinity or toxic organic solvents),with low biomass conversion and selectivity are often reported in *** this work,we report glucose photoreforming for coproduction of H_(2) and arabinose with improved selectivity under neutral condition using carbon quantum dots(CQDs)modified TiO_(2) *** show that the conventional CQDs fabricated by a facile one-step hydrothermal process could be endowed with novel color changing property,due to the particle aggregation under the regulation of incident *** as-fabricated CQDs/TiO_(2) composites with certain colored CQDs could greatly improve glucose to arabinose conversion selectivity(-75%)together with efficient hydrogen evolution(up to 2.43 mmolh^(-1)g^(-1))in *** arabinose is produced via the direct C1-C2 α-scissions mechanism with reactive oxygen species of·O_(2)^(-) and·OH,as evidenced by ^(13)C labeled glucose and the electron spin-resonance(ESR)studies,*** work not only sheds new lights on CQDs assisted photobiorefinery for biomass valorization and H_(2) coproduction,but also opens the door for rationale design of different colored CQDs and their potential applications for solar energy utilization in the noble-metal-free system.

关键词： CQDs Size regulation Hydrogen production Glucose photoreforming Arabinose

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Towards advanced divertor configurations on the J-TEXT tokamak

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Plasma Science and technology 2022年第12期24卷 233-250页

作者： Yunfeng LIANG Zhipeng CHEN Nengchao WANG Zhifeng CHENG Alexander KNIEPS Song ZHOU Bo RAO Shuai XU Philipp DREWS Xiaolong ZHANG Hao WANG Zhaosu WANG Jie YANG Xin XU Jiankun HUA Qinghu YANG Wei YAN Cunkai LI Yutong YANG Shuhao LI Shaocheng LIU Lin NIE Ting LONG Liang LIAO Fuqiong WANG Yasuhiro SUZUKI the J-TEXT Team International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People's Republic of China Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)Jülich 52425Germany Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China Southwestern Institute of Physics Chengdu 610041People's Republic of China Department of Applied Physics College of ScienceDonghua UniversityShanghai 201620People's Republic of China Graduate School of Advanced Science and Engineering Hiroshima UniversityHigashi-Hiroshima 739-8527Japan

Developing advanced magnetic divertor configurations to address the coupling of heat and particle exhaust with impurity control is one of the major challenges currently constraining the further development of fusion *** has therefore become the focus of extensive attention in recent *** J-TEXT,several new divertor configurations,including the high-field-side single-null poloidal divertor and the island divertor,as well as their associated fundamental edge divertor plasma physics,have recently been *** purpose of this paper is to briefly summarize the latest progress and achievements in this relevant research field on J-TEXT from the past few years.

关键词： divertor tokamak magnetically confined fusion

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A Through-Intact-Skull(TIS)chronic window technique for cortical structure and function observation in mice

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eLight 2022年第1期2卷 185-202页

作者： Dongyu Li Zhengwu Hu Hequn Zhang Qihang Yang Liang Zhu Yin Liu Tingting Yu Jingtan Zhu Jiamin Wu Jing He Peng Fei Wang Xi Jun Qian Dan Zhu Britton Chance Center for Biomedical Photonics‑MoE Key Laboratory for Biomedical Photonics Wuhan National Laboratory for Optoelectronics‑Advanced Biomedical Imaging FacilityHuazhong University of Science and TechnologyWuhan 430074HubeiChina Optics Valley Laboratory Hubei 430074China State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic ResearchCollege of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310058China Interdisciplinary Institute of Neuroscience and Technology Department of AnesthesiologyThe Second Affiliated HospitalSchool of MedicineZhejiang UniversityKaixuan Road 258thHangzhou 310020China Department of Automation Tsinghua UniversityBeijing 100084China School of Optical Electronic Information‑Wuhan National Laboratory for Optoelectronics‑Advanced Biomedical Imaging Facility Huazhong University of Science and TechnologyWuhan 430074HubeiChina

Modern optical imaging techniques provide powerful tools for observing cortical structure and functions at high *** skull windows have been established for different applications of cortical imaging,and each has its advantages and *** critical of the limitations,none of the current skull windows is suitable for observing the responses to some acute craniocerebral injuries on a large scale and at high ***,we developed a“Through-Intact-Skull(TIS)window”that enables the observation of an immune response on a bilateral cortical scale and at single-cell resolution after traumatic brain injury without affecting the pathological environment of the *** TIS window also has the advantages of craniotomy-freeness,centimeter-field of view,synaptic resolution,large imaging depth,long-term observation capability,and suitability for awake ***,the TIS window is a promising new approach for intravital cortical microscopy in basic research in neuroscience.

关键词： Skull optical clearing window Long-term neurovascular imaging Traumatic brain injury Awake animal

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Effects of helium massive gas injection level on disruption mitigation on EAST

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Plasma Science and technology 2021年第7期23卷 31-38页

作者： Abdullah ZAFAR Ping ZHU Ahmad ALI Shiyong ZENG Haolong LI CAS Key Laboratory of Geospace Environment and Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026Peopleʼs Republic of China International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074Peopleʼs Republic of China Department of Engineering Physics University of Wisconsin-MadisonMadisonWI 53706United States of America Pakistan Tokamak Plasma Research Institute Islamabad 3329Pakistan Department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefei 230026People’s Republic of China

In this study,NIMROD simulations are performed to investigate the effects of massive helium gas injection level on the induced disruption on EAST *** is demonstrated in simulations that two different scenarios of plasma cooling(complete cooling and partial cooling)take place for different amounts of injected *** the impurity injection above a critical level,a single MHD activity is able to induce a complete core temperature *** impurity injection below the critical level,a series of multiple minor disruptions occur before the complete thermal quench.

关键词： massive gas injection MHD instabilities major disruption minor disruption

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Impact of Phase Locked Loop on Commutation Failure in LCC-HVDC 7

Impact of Phase Locked Loop on Commutation Failure in LCC-HV...

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7th International Conference on Electrical engineering, Control and Robotics, EECR 2021

作者： Tang, Peiyuan Yuan, Xiaoming Lu, Jun State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan430074 China China-EU Institute for Clean and Renewable Energy Huazhong University of Science and Technology Wuhan430074 China

Besides the DC faults, AC faults and faults in converter, the dynamic process of control system has its influence on commutation failure. As an important element in LCC-HVDC control system, PLL provides the reference phase of receiving end power system for valve control system. When there is a difference between the real phase of receiving end power system and the output from PLL, control system cannot adjust extinction angle accurately. In this paper, the function of PLL in HVDC control system and the characteristic of PLL's tracking process are analysed. Then the influence of the phase error caused by PLL's tracking process on the extinction angle is discussed. At last, a detailed LCC-HVDC model is used to prove the impact of PLL's dynamic process on commutation failure and test the influence of PLL with different parameters on commutation failure. © Published under licence by IOP Publishing Ltd.

关键词： Phase locked loops

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Breakthroughs in projection-enabled additive manufacturing:From novel strategies to cutting-edge applications

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The Innovation 2023年第3期4卷 1-2页

作者： Yu-Qing Liu Zheng Xiong Yong-Lai Zhang Hua Liu Center for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Emitting Materials and Technology of Ministry of EducationNational Demonstration Center for Experimental Physics EducationNortheast Normal University5268 Renmin StreetChangchun 130024China Corning Research&Development Corporation 1 Riverfront PlazaCorningNY 14831USA State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun 130012China

As one of the crucial technologies of additive manufacturing(AM),projection technology,which features fast printing speed,high molding accuracy,and low cost,exhibits great potential in cutting-edge *** basic principle of projection-enabled AM(PAM)is the stacking of layer-wise structures,in which the dynamic mask pattern is projected onto the surface of the liquid photosensitive resin,triggering polymerization in a specific area to accomplish single-layer *** facilitates the layer-wise manufacture of complex three-dimensional(3D)***,the projection technologies of PAM can be mainly classified into liquid crystal displays,digital light processing(DLP),and silicon-based light crystal spatial light *** these,DLP is distinguished by its programmable two-dimensional(2D)projection ability.

关键词： DLP projection additive

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Adaptive Datum Points Location Optimization Method for Flexible Workpieces based on Centroid Characteristics

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Procedia CIRP 2024年 129卷 61-66页

作者： Jia Luo Yanlong Cao Fan Liu Junnan Zhi Jiangxin Yang Tukun Li Hongsheng Fu Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province College of Mechanical Engineering Zhejiang University Hangzhou 310027 China State Key Laboratory of Fluid Power and Mechatronic Systems College of Mechanical Engineering Zhejiang University Hangzhou 310027 China School of Computing and Engineering University of Huddersfield Huddersfield HD1 3DH U.K.

This paper proposes a method for adapting the layout of flexible workpieces of various shapes, in order to reduce the difficulty of location design for personalized shapes. Different from the previous location design that relied on the experiences of engineers, this method establishes an optimization model that determines the number of datum points and the optimal solution based on the centroid characteristics of the workpieces. The optimization index of this model is to control the minimum deformation of the overall flexible workpieces and the minimum variance of the deformation at the maximum deformation point. Taking the characteristics of the workpieces as a priori constraints for location determination, this model obtains the optimal solution combined with finite element analysis. Finally, the effectiveness of the method is verified through a numerical example.

关键词： adaptive location optimization flexible workpieces finite element analysis

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