检索结果-内蒙古大学图书馆

Low-carbon Operation of Combined Heat and Power Integrated Plants Based on Solar-assisted Carbon Capture

Journal of Modern Power Systems and Clean Energy 2022年第5期10卷 1138-1151页

作者： Xusheng Guo Suhua Lou Yaowu Wu Yongcan Wang State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhan 430074China State Grid Sichuan Electric Power Research Institute Chengdu 610041China

Accelerating the development of renewable energy and reducing CO_(2)emissions have become a general consensus and concerted action of all countries in the world. The electric power industry, especially thermal power industry, is the main source for fossil energy consumption and CO_(2)emissions. Since solvent-based post-combustion carbon capture technology would bring massive extra energy consumption, the application of solar-assisted carbon capture technology has attracted extensive attention. Due to the important role of coal-fired combined heat and power plants for serving residential and industrial heating districts, in this paper, the low-carbon operation benefits of combined heat and power integrated plants based on solar-assisted carbon capture(CHPIP-SACC) are fully evaluated in heat and power integrated energy system with a high proportion of wind power. Based on the selected integration scheme, a linear operation model of CHPIP-SACC is developed considering energy flow characteristics and thermal coupling interaction of its internal modules. From the perspective of system-level operation optimization, the day-ahead economic dispatch problem based on a mix-integer linear programming model is presented to evaluate the low-carbon benefits of CHPIP-SACC during annual operation simulation. The numerical simulations on a modified IEEE 39-bus system demonstrate the effectiveness of CHPIP-SACC for reducing CO_(2)emissions as well as increasing the downward flexibility. The impact of different solar field areas and unit prices of coal on the low-carbon operation benefits of CHPIP-SACC is studied in the section of sensitivity analysis.

关键词： Solar-assisted carbon capture CO_(2)emission reduction combined heat and power integrated plant heat and power integrated energy system wind power

来源：评论

学校读者我要写书评

暂无评论

Participation of large-scale wind power generation in power system frequency regulation

引用

Chinese Science Bulletin 2013年第36期58卷 4557-4565页

作者： SUN HaiShun LIU Ju WEN JinYu CHENG ShiJie LUO Cheng YAO LiangZhong State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and Technology Midwest Independent Transmission System Operator Inc. China Electric Power Research Institute

The initiative participation of wind power generators in power system frequency regulation is an inevitable demand to ensure power system safe operation with large-scale wind power ***,it is principally difficult for conventional wind turbines to participate in power system frequency *** this reason,solution to this problem is becoming a hot topic in the current *** paper systematically reviews the relevant research progresses in the control strategies and the capability assessment of using wind power generators in the power system frequency regulation,including the comparing among the emulating inertia control,the droop control,the rotor speed control,the pitch angle control and the coordinated ***,future research in this area is pointed out in the paper.

关键词：风力发电机电力系统频率调节控制策略风力涡轮机安全运行惯性控制转速控制

来源：评论

学校读者我要写书评

暂无评论

Switching Reaction Pathway of Medium-Concentration Ether Electrolytes to Achieve 4.5 V Lithium Metal Batteries (vol 23, pg 8481, 2023)

引用

NANO LETTERS 2023年第21期23卷 10097-10097页

作者： Jiang, Zhipeng Deng, Yu Mo, Jisheng Zhang, Qingan Zeng, Ziqi Li, Yongtao Xie, Jia School of Materials Science and Engineering Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials of Ministry of Education Anhui University of Technology Maanshan 243002 China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan 430074 China

Pursuing high-energy-density lithium metal batteries (LMBs) necessitates the advancement of electrolytes. Despite demonstrating high compatibility with lithium metal anodes (LMAs), ether-based electrolytes face challenges in achieving stable cycling at high voltages. Herein, we propose a strategy to enhance the high-voltage stability of medium-concentration (∼1 M) ether electrolytes by altering the reaction pathway of ether solvents. By employing a 1 M lithium difluoro(oxalato)borate in dimethoxyethane (LiDFOB/DME) electrolyte, we observed that LiDFOB displays a pronounced tendency for decomposition over DME, leading to a modification in the decomposition pathway of DME. This modification facilitates the formation of a stable organic–inorganic hybrid interface. Utilizing such an electrolyte, the Li-LCO cell demonstrates a discharge specific capacity of 146 mAh g–1 (5 C) and maintains retention of 86% over 1000 cycles at 2 C under a 4.5 V cutoff voltage. Additionally, the optimized ether electrolyte demonstrated outstanding cycling performance in Li-LCO full cells under practical conditions.

关键词： lithium metal battery electrolyte high-voltage ether interface

来源：评论

学校读者我要写书评

暂无评论

Design and ﬁrst result of combined Langmuir-magnetic probe on J-TEXT tokamak

引用

Plasma Science and technology 2022年第5期24卷 39-47页

作者： Qinghu YANG Zhipeng CHEN Zhigang HAO Yangming ZHAO Xin XU Shuhao LI Jie YANG Wei YAN Zhonghe JIANG Zhongyong CHEN Nengchao WANG Zhoujun YANG Yuan PAN Yonghua DING 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

In order to measure boundary electrostatic and magnetic fluctuations simultaneously,a combined Langmuir-magnetic probe(CLMP)has been designed and built on joint-Texas experimental *** probe consists of 8 graphite probe pins and a 3D magnetic probe,driven by a mechanical pneumatic *** means of simulation,the shielding effect of the graphite sleeve on the magnetic fluctuation signal is explored,and the influence of the eddy current was reduced by cutting the graphite *** the experiment,it has been verified that the mutual inductance of electromagnetic signals can be ignored,and a 70–90 k Hz electromagnetic mode is observed around the last closed magnetic *** establishment of CLMP provides data for the exploration of the coupling of electrostatic and magnetic fluctuations.

关键词： J-TEXT Langmuir probe magnetic probe eddy current effect electromagnetic mode

来源：评论

学校读者我要写书评

暂无评论

High-rate sodium metal batteries enabled by trifluormethylfullerene additive

引用

Nano Research 2022年第8期15卷 7172-7179页

作者： Pengju Li Xiaobo Huang Zhipeng Jiang Han Zhang Pengwei Yu Xing Lu Jia Xie State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Sodium metal is a promising anode for sodium batteries due to its high theoretical capacity and low ***,the serious Na dendrite growth and low Coulombic efficiency,especially at high current densities/cycling capacities,severely limit the application of sodium metal ***,trifluoromethylfullerene,C_(60)(CF_(3))_(6),is designed as an electrolyte additive to enable the high-rate cycling of sodium metal anodes with high Coulombic *** CF3 groups contribute to the formation of stable NaF-rich solid electrolyte interface layer,while C_(60)cages induce the uniform distribution of sodium ions and promote the formation of smooth and compact ***,Na||Cu cell with C_(60)(CF_(3))_(6)can be cycled at 2 mA·cm^(−2)and 10 mAh·cm^(−2)over 180 cycles with an average Coulombic efficiency of 99.9%,and Na||Na cell can be cycled at 10 mA·cm^(−2)over 600 ***,Na||NaV2(PO_(4))_(3)@C full cell exhibits high capacity retention of 84%over 2,000 cycles at 20 C(~3 mA·cm^(−2)).

关键词： sodium metal anode fullerene trifluormethylfullerene high rate electrolyte additive

来源：评论

学校读者我要写书评

暂无评论

Observation of non-Hermitian topological disclination states and charge fractionalization

arXiv

引用

arXiv 2025年

作者： Li, Ruifeng Banerjee, Rimi Mandal, Subhaskar Li, Da Long, Yang Ma, Tianchi Liu, Jianwei Liu, Gui-Geng Chong, Yidong Zhang, Baile Li, Er-Ping College of Information Science & Electronic Engineering Zhejiang Key Laboratory of Intelligent Electromagnetic Control and Advanced Electronic Integration Zhejiang University Hangzhou310027 China Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore Department of Physics Indian Institute of Technology Bombay Mumbai400076 India Centre for Disruptive Photonic Technologies Nanyang Technological University Singapore Singapore Research Center for Industries of The Future Westlake University Hangzhou310030 China Department of Electronic and Information Engineering School of Engineering Westlake University Hangzhou310030 China

There has been significant interest in exploring topological disclination states, which effectively probe the band topology of the host material beyond the conventional bulk-edge correspondence. While most studies in this area have primarily focused on Hermitian systems, recent theoretical work predicts that non-Hermiticity can drive topological phase transitions and host topological disclination states associated with fractional charge. However, no experimental observations have been reported to date. Here, we report the first experimental observation of topological disclination states in electric circuits, induced solely by gain and loss. Through admittance matrix measurements and eigenstate analysis, we confirm their emergence and compute the corresponding fractional charge. Moreover, the disclination mode profile and localization effect can be directly visualized via monochromatic field excitation. Additionally, we demonstrate the emergence of degenerate zero-energy topological disclination states, devoid of fractional charge, in distinct non-Hermitian geometries. Our findings open the possibility of non-Hermiticity-induced fractional charges in two-dimensional non-Hermitian lattices, which may pave the way for advancements in active topological photonic devices. © 2025, CC BY.

关键词： Electric network topology

来源：评论

学校读者我要写书评

暂无评论

Artificial ferroelectric-like hysteresis in antiferroelectrics with non-uniform disorder

引用

Acta Materialia 2025年 294卷

作者： Zhang, Yi Zhang, Xinyu Zheng, Zihao Xie, Jiyang Lou, Jing Qin, Jiayi Wang, Shanhu He, Yang Du, Yifeng Yang, Bin Huang, Xin Han, Huiping Wu, Yilin Liu, Shuya Khan, Afzal Li, Zhidong Ye, Qianxu Yang, Sheng'an Ma, Ji Zhang, Hui Liu, Xiang Chen, Qingming Hu, Wanbiao Ma, Jing Yi, Jianhong Guo, Jinming Peng, Shou Pan, Hao Wu, Liang Nan, Ce-Wen Faculty of Materials Science and Engineering Kunming University of Science and Technology Yunnan Kunming650093 China Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials School of Materials Science and Engineering Hubei University Hubei Wuhan430062 China Yunnan Key Laboratory of Electromagnetic Materials and Devices National Center for International Research on Photoelectric and Energy Materials School of Materials and Energy Yunnan University Yunnan Kunming650091 China Electron Microscopy Center Yunnan University Yunnan Kunming650091 China Triumph Science and Technology Engineering Co. Ltd. Beijing Haidian100036 China State Key Laboratory of Advanced Glass Materials CNBM Research Institute for Advanced Glass Materials Group Co. Ltd. Anhui Bengbu233000 China Southwest United Graduate School Yunnan Kunming650093 China School of Materials Science and Engineering Tsinghua University Beijing100084 China State Key Laboratory of Advanced Waterproof Materials School of Advanced Materials Shenzhen Graduate School Peking University Guangdong Shenzhen518055 China

Antiferroelectrics exhibit unique double-hysteresis polarization loops, which have garnered significant attention due to their potential applications such as energy storage, electromechanical transduction, as well as synapse devices. However, numerous antiferroelectric materials have been reported to display signs of hysteresis loops resembling those of ferroelectric materials, and a comprehensive understanding remains elusive. In this work, we provide a phenomenological model that reproduces such widely observed artificial ferroelectric hysteresis with a superposition of numerous disordered antiferroelectric loops that have varying antiferroelectric-to-ferroelectric transition fields, particularly when these field ranges intersect. Experimentally, we realized such artificial ferroelectric-like hysteresis loops in the prototypical antiferroelectric PbZrO3 and PbHfO3 thin films, by introducing non-uniform local disorder (e.g., defects) via fine-tuning of the film growth condition. These ferroelectric-like states are capable of persisting for several hours prior to transitioning back into the thermodynamically stable antiferroelectric ground state. Those results provide insights into the fundamental impact of disorder on the AFE properties and new possibilities of disorder-tailored functions. © 2025 Acta Materialia Inc.

关键词： Antiferroelectric materials

来源：评论

学校读者我要写书评

暂无评论

A control strategy of three-phase voltage-sourced PWM rectifier

A control strategy of three-phase voltage-sourced PWM rectif...

引用

2011 International Conference on Electrical Machines and Systems, ICEMS 2011

作者： Wang, Ende Huang, Shenghua State Key Laboratory Ratory of Advanced Electromagnetic Engineering and Technology China

ISBN: (纸本)9781457710445

The double closed loops control strategy composed of inner current loop and outer voltage loop in the d-q synchronous frame is a relatively common control strategy of the three-phase voltage-sourced PWM rectifier. The system can not be completely decoupled because of the variable inductance in the actual system. And for simple, the decoupled part of the controller is usually ignored. What's more, the equation of the outer voltage loop is nonlinear. According to the analysis of the model of the rectifier, a novel double closed loops control strategy composed of inner current loop in the complex vector and outer square of the voltage loop, is proposed. The inner current loop using the mentioned control strategy can be completely decoupled without the exact value of the boost inductance, and the equation of the outer square of the voltage loop is linear. From the results of the simulation, the mentioned control strategy can greatly improve the dynamic and static of the system. © 2011 IEEE.

关键词： Inductance

来源：评论

学校读者我要写书评

暂无评论

The key technology of distribution transformer and static var compensator integration system

The key technology of distribution transformer and static va...

引用

2011 International Conference on Mechatronic Science, Electric engineering and Computer, MEC 2011

作者： Xiong, Qing Zhang, Zhe Yin, Xianggen State Key Laboratory of Advanced Electromagnetic Engineering and Technology China China

ISBN: (纸本)9781612847221

Towards the reactive compensation feature of distribution network and integral substation, this paper proposed an integration structure of distribution transformer and STATCOM (DT-STATCOM). It use the surplus capacity of transformer to compensate the reactive power;by setting the connect voltage flexible, it extended the switching devices selection;the integration structure reduce the volume and cost of compensation device. Based on the structure of DT-STATCOM, this paper proposed two novel reactive current detection method across the transformer's ports. Then the paper designed the decision control system using multi-lateral information. Simulation result showed that, the DT-STATCOM system had significant effect on dynamic reactive power compensation, transformer voltage support and imbalance inhibition. © 2011 IEEE.

关键词： Reactive power

来源：评论

学校读者我要写书评

暂无评论

Modelling and analysis of half-/full-bridge hybrid MMC when riding through DC-side pole-to-ground fault

引用

High Voltage 2022年第3期7卷 496-509页

作者： Zhen He Jiabing Hu Lei Lin Pingliang Zeng School of Automation Hangzhou Dianzi UniversityHangzhouChina State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhanChina

In a modular multilevel converter-based high-voltage direct current(MMC-HVDC)system,the dc fault ride through(FRT)control is an effective way to deal with a dc-side pole-to-ground(PTG)***,the setting of FRT duration brings potential hazards:1)MMC will face the risk of“secondary short circuit”if FRT duration is short;2)ac grid may have power angle stability issue if FRT duration is *** avoid these hazards and provide theoretical guidance for the FRT duration setting,transient behaviour of dc fault current during the PTG FRT stage is explored in this ***,challenges of the transient analysis are summarised as non-linearity and high-order *** light of this,numerical and Hilbert-Huang Transformation methods are introduced to evaluate the non-linearity *** is found that the path of MMC from dc current to dc internal voltage is weakly ***,a linear transient model is built to analyse the dc fault *** participation factor analysis,the order of the proposed model is further reduced,so that an analytical expression of the dc fault current is approximately *** on the analytical expression,regularities and mechanism of dc fault current are fully *** of the transient analysis to the setting of FRT duration is elaborated in ***,the PSCAD/EMTDC simulation verifies the validity of the proposed model and analytical expression.

关键词： fault ground setting

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：