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5th IEEE International Conference on Dielectrics, ICD 2024

作者： Zhu, Kexin Lv, Langlang Chen, Guangzhi Jiang, Hua Wang, Xiangyu Dai, Liangjun Zeng, Fuping School of Electrical Engineering and Automation Wuhan University State Key Laboratory of Power Grid Environmental Protection Wuhan430072 China Chongqing University State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing400044 China

ISBN: (纸本)9798350308976

With the continuous development of sustainable and renewable energy sources, the catalytic degradation of SF6, a strong greenhouse gas, is receiving increasing attention. In this article, we provide a reference for the selection of SF6 thermal catalysts by simulating the adsorption and decomposition processes of SF6 on two-dimensional metals with different metal modifications. Based on DFT (density functional theory), simulate energy changes and charge transfer during adsorption and decomposition processes. The absence of band gaps in the energy band structure of Cu-CN, Mo-CN and Tc-CN implies their metallic character, which can be attributed to the effective orbital interaction between the benzene ring and MN4. In addition, there is a strong chemisorption between the CN structures of Cr, Mn and Ru and SF6 with significant bond length changes, charge transfer. The CN structures of these three metals have better potential to catalyze SF6 © 2024 IEEE.

关键词： Bond length

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A diluent protective organic additive electrolyte of hydrophilic hyperbranched polyester for long-life reversible aqueous zinc manganese oxide batteries

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Frontiers of Materials Science 2023年第2期17卷 65-78页

作者： Hengxin Xu Song Yang Yufeng Chen Junle Xiong Shengtao Zhang Fang Gao Zhengyong Huang Hongru Li College of Chemistry and Chemical Engineering Chongqing UniversityChongqing 400044China Chongqing Kunding Environmental Protection Technology Co.Ltd.Chongqing 400044China State Key Laboratory of Power Transmission Equipments and System Security and New Technology Chongqing UniversityChongqing 400044China

hydrophilic hyperbranched polyester(poly(tetramethylol acetylenediurea(TA)-CO-succinyl chloride)(PTS))was proposed to be used as an organic additive in aqueous ZnSO_(4)electrolyte to achieve a highly reversible zinc/manganese oxide *** is found that the zinc symmetric battery based on the 2.0 wt.%PTS/ZnSO_(4)electrolyte showed a long cycle stability of more than 2400 h at 1.0 mA·cm^(-2),which is much longer than that including the blank ZnSO_(4)electrolyte(140 h).Furthermore,the capacity retention of the Zn||MnO_(2)full cells employing the 2.0 wt.%PTS/ZnSO_(4)electrolyte remained 85%after 100 cycles at 0.2 A·g^(1),which is much higher than 20%capacity retention of the cell containing the blank ZnSO_(4)electrolyte,and also greater than 59.6%capacity retention of the cell including the 10.0 wt.%TA/ZnSO_(4)*** using 2.0 wt.%PTS/ZnSO_(4)electrolytes,the capacity retention of the Zn||MnO_(2)full cells even reached 65%after 2000 cycles at a higher current density of 1.0 A·g^(1).It is further demonstrated that the PTS was firmly adsorbed on the zinc anode surface to form a protective layer.

关键词： aqueous zinc-ion battery hydrophilic branched polyester Zn anode protection Zn dendrite adsorption

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Effects of Cross-Linking Density on the Breakdown Characteristics of Silicone Gels for power Device Encapsulation 5th

Effects of Cross-Linking Density on the Breakdown Characteri...

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5th International Symposium on Plasma and Energy Conversion, iSPEC 2023

作者： Zhu, Kexin Zeng, Fuping Chen, Rirong Lv, Langlang Jiang, Hua Chen, Guangzhi Hubei State Key Laboratory of Power Grid Environmental Protection School of Electrical Engineering and Automation Wuhan University Hubei Wuhan430072 China Hubei Key Laboratory of Power Equipment & System Security for Integrated Energy School of Electrical Engineering and Automation Wuhan University Hubei Wuhan430072 China

ISBN: (纸本)9789819722440

Silicone gels are widely used as a high-performance polymer insulating material in the packaging of high-voltage, high-power devices. However, under long-term thermal stress conditions, silicone gels undergo cross-linking reactions, and the degree of cross-linking increases with the aging degree. In order to study the potential relationship between the aging degree and the crosslink density, this paper builds the AC and DC withstand voltage test platform, by changing the ratio of the specimen preparation, to obtain the silicone gel specimens with different crosslink density, and carries out the negative polarity under the role of the rod-plate electrode DC breakdown test, and draws the Weibull distribution diagram. The study shows that the increase of cross-linking density leads to the decrease of the breakdown voltage of the organosilicon gel, and the change of the cross-linking density of the organosilicon gel due to thermal aging is an important means by which it affects the breakdown voltage of the organosilicon gel. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Organosilicon

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A Flexible Antenna Array Design for Microwave Energy Transmission 17th

A Flexible Antenna Array Design for Microwave Energy Transmi...

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17th Annual Conference of China Electrotechnical Society, CES 2022

作者： Chen, Jinghan Guo, Siwei Nie, Yongjie Liu, Siyang Wang, Ping State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing China Yunnan Key Laboratory of Green Energy Electric Power Measurement Digitalization Control and Protection Yunnan Power Grid Co. Ltd. Kunming China

ISBN: (纸本)9789819904075

Microstrip antenna as a kind of receiver front-end equipment of microwave energy transmission system, which plays an important role on the overall transmission efficiency of the system. Conventional solid metal antennas have poor mechanical properties and are susceptible to plastic deformation and cracks under external forces, which will degrade their performance. Gallium-indium alloy (EGaIn), which is liquid at room temperature, has similar electrical properties to copper and can recover itself after bending, which can make up for the shortcoming of solid-state antennas;Polyethylene naphthalate two formic acid glycol ester (PEN) is an organic polymer material, which has similar electrical properties and superior mechanical properties to conventional materials. Based on the above two materials, this paper proposes a microstrip antenna array based on flexible materials, which can endure a wide range of mechanical deformation and has better ductility and mechanical toughness. The simulation results indicate that the proposed antenna array can operate at 2.45 Hz and achieve 90% efficiency of conventional antennas, which can better meet the demand of microwave energy transmission. © 2023, Beijing Paike Culture Commu. Co., Ltd.

关键词： Microstrip antennas

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Research on Mapping Method Between Smart Energy and Intelligent Sensing Terminal

Research on Mapping Method Between Smart Energy and Intellig...

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2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022

作者： Liu, Siyang Mao, Yuxing Long, Yunfeng Pan, Jianyu Jiang, Tianyan Nie, Yongjie School of Electrical Engineering Chongqing University State Key Laboratory of Power Equipment & System Security and New Technology Chongqing China Electric Power Measurement Digitalization Control and Protection Yunnan Power Grid Co. Ltd. Yunnan Key Laboratory of Green Energy Yunnan Kunming China

ISBN: (数字)9781665407502

ISBN: (纸本)9781665407502

In the process of smart city construction, each city has its characteristics, so we should implement policies according to the city. Smart energy is an important cornerstone of smart city construction. This paper proposes a mapping method between smart energy and Intelligent Sensing Terminal. Firstly, a typical application scenario design of the smart city is proposed. Then, the smart city application scenario fitness calculation model is given combined with the analysis of macro and micro scenes. Finally, Intelligent Sensing Terminal and scene mapping mechanism are proposed by a new two-dimensional coding method. This method can quickly and effectively calculate the location to be arranged and the optimal number of devices, so as to reduce resource consumption and improve the quality of perceived data. © 2022 IEEE.

关键词： Smart city

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key Technologies of IoT Intelligent Sensing Terminal for Smart Energy

Key Technologies of IoT Intelligent Sensing Terminal for Sma...

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2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022

作者： Liu, Siyang Mao, Yuxing Long, Yunfeng Pan, Jianyu Jiang, Tianyan Cao, Min State Key Laboratory of Power Equipment & System Security and New Technology School of Electrical Engineering Chongqing University Chongqing China Yunnan Key Laboratory of Green Energy Electric Power Measurement Digitalization Control and Protection Electric Power Research Instute Yunnan Power Grid Co. Ltd. Yunnan Kunming China

ISBN: (数字)9781665407502

ISBN: (纸本)9781665407502

To build a smart energy system, we must first deploy a fully aware terminal layer to connect all energy things through perception. This paper proposes key technologies of IoT intelligent sensing terminal for smart energy. Firstly, smart energy Internet of things function is given to analyze the architecture for smart energy Internet of things. Analysis of Internet of Things terminal ecosystem is located. Finally, the key technologies including resource unified modeling, hardware and software system of Internet of things terminal are proposed. Customized design of intelligent sensing terminal is given to manufacture intelligent sensing terminal for different application scenarios of smart energy. © 2022 IEEE.

关键词： Internet of things

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Study on the Catalytic Degradation of Strong Greenhouse Gas SF6 Using a Two-Dimensional Metal Organic Framework

Study on the Catalytic Degradation of Strong Greenhouse Gas ...

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IEEE International Conference on Dielectrics (ICD)

作者： Kexin Zhu Langlang Lv Guangzhi Chen Hua Jiang Xiangyu Wang Liangjun Dai Fuping Zeng State Key Laboratory of Power Grid Environmental Protection School of Electrical Engineering and Automation Wuhan University Wuhan China State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China

ISBN: (数字)9798350308976

ISBN: (纸本)9798350308983

With the continuous development of sustainable and renewable energy sources, the catalytic degradation of SF 6 , a strong greenhouse gas, is receiving increasing attention. In this article, we provide a reference for the selection of SF 6 thermal catalysts by simulating the adsorption and decomposition processes of SF 6 on two-dimensional metals with different metal modifications. Based on DFT (density functional theory), simulate energy changes and charge transfer during adsorption and decomposition processes. The absence of band gaps in the energy band structure of Cu-CN, Mo-CN and Tc-CN implies their metallic character, which can be attributed to the effective orbital interaction between the benzene ring and MN 4 . In addition, there is a strong chemisorption between the CN structures of Cr, Mn and Ru and SF 6 with significant bond length changes, charge transfer. The CN structures of these three metals have better potential to catalyze SF 6

关键词： Degradation Structural rings Renewable energy sources Photonic band gap Adsorption Sulfur hexafluoride Thermal decomposition

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New Intelligent Sensing Terminal system Architecture of Internet of Things

New Intelligent Sensing Terminal System Architecture of Inte...

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International Conference on Internet of Things, Communication and Intelligent Technology, IoTCIT 2022

作者： Zhou, Lidan Li, Jing Yao, Gang Wang, Hongyu Li, Jian Liu, Siyang Nie, Yongjie School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai Minhang District200240 China Wiscom System Co. LTD. Nanjing China State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing400044 China Electric Power Research Institute Yunnan Power Grid Co. Ltd. Yunnan Kunming650217 China Yunnan Key Laboratory of Green Energy Electric Power Measurement Digitalization Control and Protection Yunnan650217 China

ISBN: (纸本)9789819904150

In view of the fragmentation of the functions, forms and basic software and hardware of the existing IoT terminals, we propose an IoT intelligent sensing terminal system architecture, in which the intelligent sensing layer collects external data and information and transmits it to the computing fusion collaboration layer for data processing, fusion and task collaboration. The local application layer generates processing results and interacts with the cloud application layer through the communication layer. The new intelligent sensing terminal system of the IoT has an integrated local four-tier architecture, which can meet the needs of the large-scale development of the IoT. In addition, it can work uniformly under the control of the cloud, or complete the underlying tasks independently. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Internet of things

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Day-ahead to intraday optimization model for power systems with reliability constraints

Day-ahead to intraday optimization model for power systems w...

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Sustainable power and Energy Conference (iSPEC)

作者： Yudun Li Yuntao Sun Naiyong Li Yu Han Jinming Lin Ziheng Pan Bo Hu relay protection power system automation and new energy generation technology Shandong Electric Power Research Institute Power and Energy Reliability Research Center State Key Laboratory of Power Transmission Equipment& System Security and New Technology Chongqing University Chongqing China

With the increasing penetration rate of wind power, the uncertainty and operational risks of the power system are growing. Therefore, methods considering uncertainty in dispatching are receiving increasing attention from scholars. This study considers the uncertainties of wind power, load, and unit failures, and aims to optimize the intraday scheduling of energy under reliability constraints. The optimization process includes two stages: day-ahead planning and intraday adjustments. The intraday adjustments are based on the day-ahead dispatch plan, which is updated according to the latest forecast curves of wind power and load. This process reduces the risk caused by wind power prediction errors and random component failures. The model adopts a stochastic optimization approach to consider risks and ensure the cost-effectiveness and reliability of the system. The optimization results can help power system operators make decisions on unit dispatch and reduce wind curtailment rates, ensuring the supply-demand balance in high-penetration wind power systems. Through case analysis, the superiority and effectiveness of the proposed model have been verified.

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Correction to "Highly Active Pt3Sn{110}-Excavated Nanocube Cocatalysts for Photocatalytic Hydrogen Production"

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ACS applied materials & interfaces 2020年第8期12卷 10058页

作者： Juan Yao Yaru Zheng Xin Jia Lixuan Duan Qiang Wu Cunping Huang Wei An Qunjie Xu Weifeng Yao Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power College of Environmental & Chemical Engineering Shanghai University of Electric Power Shanghai 200090 P. R. China. College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Songjiang District Shanghai 201620 P. R. China. Aviation Fuels Research Laboratory Federal Aviation Administration William J. Hughes Technical Center Atlantic City International Airport Atlantic City New Jersey 08405 United States. Shanghai Institute of Pollution Control and Ecological Security Shanghai 200090 P. R. China. Shanghai Engineering Research Center of Heat-Exchange System and Energy Saving Shanghai University of Electric Power Shanghai 200090 P. R. China.

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