检索结果-南通市图书馆

Protection and control of Modern Power systems 2021年第1期6卷 55-64页

作者： Sai Liu Cheng Zhou Haomin Guo Qingxin Shi Tiancheng E.Song Ian Schomer Yu Liu Maintenance Branch Company State Grid Jiangsu Electric Power Co.Ltd.Nanjing211102Jiangsu ProvinceChina Kunshan Power Supply Branch Company State Grid Jiangsu Electric Power Co.Ltd.Kunshan215300Jiangsu ProvinceChina Xiamen Power Supply Company State Grid Fujian Electric Power Co.Ltd.Xiamen361004Fujian ProvinceChina Enliten Lab University of TennesseeKnoxvilleTN37996USA School of Electrical Engineering Southeast UniversityNanjing210096Jiangsu ProvinceChina

As a key component of an integrated energy system(IES),energy storage can effectively alleviate the problem of the times between energy production and *** the benefits of energy storage can improve the competitiveness of multi-energy *** paper proposes a method for day-ahead operation optimization of a building-level integrated energy system(BIES)considering additional potential benefits of energy *** on the characteristics of peak-shaving and valley-filling of energy storage,and further consideration of the changes in the system’s load and real-time electricity price,a model of additional potential benefits of energy storage is *** at the lowest total operating cost,a bi-level optimal operational model for day-ahead operation of BIES is developed.A case analysis of different dispatch strategies verifies that the addition of the proposed battery scheduling strategy improves economic *** results demonstrate that the model can exploit energy storage’s potential,further optimize the power output of BIES and reduce the economic cost.

关键词： Building-level integrated energy system energy storage Additional potential benefits Bi-level optimization

Non-aqueous Al-ion batteries:cathode materials and corresponding underlying ion storage mechanisms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2022年第3期41卷 762-774页

作者： Wen-Ding Pan Cheng Liu Ming-Yue Wang Zheng-Jie Zhang Xiao-Yu Yan Shi-Chun Yang Xin-Hua Liu Yi-Fei Wang Dennis Y.C.Leung School of Electronic and Information Engineering Beihang UniversityBeijing 100091China Department of Mechanical Engineering the University of Hong KongPok Fu Lam 999077Hong KongChina state Grid Haiyang Power Supply Company Yantai 265100China Faculty of Engineering Dyson School of Design EngineeringImperial College LondonLondon SW72AZUK School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen 518055China

Aluminum-ion batteries(AIBs)are recognized as one of the promising candidates for future energy stor-age devices due to their merits of cost-effectiveness,high voltage,and high-power *** efforts have been devoted to the development of cathode materials,and the progress has been well summarized in this review ***,in addition to materials,the intercalation mechanism also plays a key role in determining cell ***,the research progress of cathode materials and corresponding ion intercalation mechanism in AIBs are summarized,including intercalation of AlCl_(4)-,intercala-tion of Al^(3+),and coordination of AlCl_(2)^(+)/AlCl^(2+).This minireview provides comprehensive guidance on the design of cathode materials for the development of high-performance AIBs.

关键词： Multivalent-ion battery Al-ion battery Nonaqueous electrolyte Cathode material Ion intercalation mechanism

A Reweighted l1-Minimization Algorithm for Joint Topology and Line Parameter Identification in Electric Grids

在线全文

学校读者我要写书评

暂无评论

A Reweighted l1-Minimization Algorithm for Joint Topology an...

energy Management and Capacity Optimization of Photovoltaic, energy storage System, Flexible Building Power System Considering Combined Benefit

第40届中国控制会议

作者： Zhiyue Wang Wei Zhou Junlin Li Zhiyong Chen Shifeng Chen Hai-Tao Zhang School of Artificial Intelligence and Automation and State Key Lab of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology School of Electrical Engineering and Computing The University of Newcastle Shenzhen Institute of Advanced Technology Chinese Academy of Sciences

Topology and line parameter information is essential to the operation and control of electric grids. However, the gird topology may frequently change with the wide adoption of distributed energy resources, and the line parameters may be missing or inaccurate. The widespread deployment of advanced metering infrastructure enables the line parameters estimation and topology identification from a data-driven perspective. In this paper, we propose a reweighted 1-minimization algorithm to deal with the joint topology and line parameter estimation problem by leveraging the sparsity of topology structure. A modified alternating descent sub-optimal method is proposed to estimate the admittance matrix of the power system using nodal voltage and current phasor measurements. Extensive simulations performed on IEEE 14 and 57-bus benchmark systems are presented to substantiate the effectiveness of the proposed algorithm.

关键词： Topology identification Line parameter estimation Electric grid Sparsity

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

energy Engineering 2023年第2期120卷 541-559页

作者： Chang Liu Bo Luo Wei Wang Hongyuan Gao Zhixun Wang Hongfa Ding Mengqi Yu Yongquan Peng Changjiang Institute of Survey PlanningDesign and ResearchWuhan430010China state Grid Hubei Economic Research Institute Wuhan430071China Huazhong University of Science and Technology Wuhan430074China Guangdong Power Grid Corp.Foshan Power Supply Bureau Foshan528000China China Power Construction Engineering Consulting Central Southern Co. Ltd.Wuhan430071China

Building structures themselves are one of the key areas of urban energy consumption,therefore,are a major source of greenhouse gas *** this understood,the carbon trading market is gradually expanding to the building sector to control greenhouse gas ***,to balance the interests of the environment and the building users,this paper proposes an optimal operation scheme for the photovoltaic,energy storage system,and flexible building power system(PEFB),considering the combined benefit of *** on the model of conventional photovoltaic(PV)and energy storage system(ESS),the mathematical optimization model of the system is proposed by taking the combined benefit of the building to the economy,society,and environment as the optimization objective,taking the near-zero energy consumption and carbon emission limitation of the building as the main *** optimized operation strategy in this paper can give optimal results by making a trade-off between the users’costs and the combined benefits of the *** efficiency and effectiveness of the proposed methods are verified by simulated experiments.

关键词： Photovoltaic energy storage system energy management PEFB optimization operation

Coordinated control of coastal multi-source multi-load system with desalination load: a review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Global energy Interconnection 2019年第4期2卷 300-309页

作者： Ming Zhong Lu Jin Jiyu Xia Ling Cheng Peiyu Chen Rong Zeng China Electric Power Research Institute Beijing100192P.R.China College of Information Science and Engineering Northeastern UniversityShenyang110819P.R.China state Grid Tianjin Electric Power Company Electric Power Research Institute Tianjin300384P.R.China Power Electronics and Electric Machinery Group Oak Ridge National Laboratory2360Cherahala BlvdKnoxvilleTN37932U.S.

Traditional seawater desalination requires high amounts of energy, with correspondingly high costs and limited benefits, hindering wider applications of the process. To further improve the comprehensive economic benefits of seawater desalination, the desalination load can be combined with renewable energy sources such as solar energy, wind energy, and ocean energy or with the power grid to ensure its effective regulation. Utilizing energy internet(EI) technology, energy balance demand of the regional power grid, and coordinated control between coastal multi-source multi-load and regional distribution network with desalination load is reviewed herein. Several key technologies, including coordinated control of coastal multi-source multi-load system with seawater desalination load, flexible interaction between seawater desalination and regional distribution network, and combined control of coastal multi-source multi-load storage system with seawater desalination load, are discussed in detail. Adoption of the flexible interaction between seawater desalination and regional distribution networks is beneficial for solving water resource problems, improving the ability to dissipate distributed renewable energy, balancing and increasing grid loads, improving the safety and economy of coastal power grids, and achieving coordinated and comprehensive application of power grids, renewable energy sources, and coastal loads.

关键词： Desalination Distribution network Power grids Multi-source multi-load Coordinated control

Electrospinning Engineering Enables High‑Performance Sodium‑Ion Batteries

在线全文

学校读者我要写书评

暂无评论

Advanced Fiber Materials 2022年第1期4卷 43-65页

作者： Chuanping Li Min Qiu Ruiling Li Xuan Li Manxi Wang Jiabo He Ganggang Lin Liren Xiao Qingrong Qian Qinghua Chen Junxiong Wu Xiaoyan Li Yiu‑Wing Mai Yuming Chen College of Environmental Science and Engineering Fujian Normal UniversityFuzhou 350000FujianChina College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350000China state Grid Fujian Maintenance Company Fuzhou 350000FujianChina Department of Mechanical Engineering The Hong Kong Polytechnic UniversityKowloonHong KongChina Centre for Advanced Materials Technology(CAMT) School of AerospaceMechanical and Mechatronics Engineering J07The University of SydneySydneyNSW 2006Australia

As a promising energy storage device,sodium-ion batteries(SIBs)have received continuous attention due to their low-cost and environmental ***,the sluggish kinetics of Na ion usually makes SIBs hard to realize desirable electrochemical performance when compared to lithium-ion batteries(LIBs).The key to addressing this issue is to build up nanostructured materials which enable fast Na-ion insertion/***-dimensional(1D)nanocarbons have been considered as both the anode and the matrix to support active materials for SIB electrodes owing to their high electronic conductivity and excellent mechanical *** of their large surface areas and short ion/electron difusion path,the synthesized electrodes can show good rate performance and cyclic stability during the charge/discharge *** is a simple synthetic technology,featuring inexpensiveness,easy operation and scalable production,and has been largely used to fabricate 1D nanostructured *** this review,we frst give a simple description of the electrospinning principle and its capability to construct desired nanostructures with diferent ***,we discuss recent developments of carbon-based hybrids with desired structural and compositional characteristics as the electrodes by electrospinning engineering for ***,we identify future research directions to realize more breakthroughs on electrospun electrodes for SIBs.

关键词： Sodium-ion batteries Electrospinning engineering Carbonaceous substrate Hybrid

Development of a WAMS based test platform for power system real time transient stability detection and control

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protection and control of Modern Power systems 2016年第1期1卷 37-47页

作者： Jinquan Zhao Yujie Zhang Pan Zhang Xiaoming Jin Chao Fu College of energy&Electrical Engineering Hohai UniversityNanjingChina Electric Power Research Institute CSGGuangzhouChina.

The real-time transient stability detection and emergency control technology based on wide area response has become a hot research area in power system stability *** different technologies have been proposed,but lots of problems remain to be solved before they can be applied in practice.A wide area measurement system(WAMS)based test platform is developed for transient stability detection and *** design as well as main function modules of the platform are *** addition,three generator power angle prediction methods and six response based transient instability detection technologies are *** of engineering application demonstrate that the developed test platform can provide a real-time operation environment,which can effectively compare and analyze the validity and practicability of these transient stability detection *** on the measured perturbed trajectories from actual power systems or the Real-Time Digital Simulators(RTDS),the platform can realize the assessment and visual result presentation of various responses from different transient instability detection *** test platform can be applied to different power systems and it is convenient to embed new transient instability detection *** some deficiencies and shortcomings in engineering application are pointed out and corresponding suggestions are *** conclusion,the hardware and software structure,function modulus and engineering applications are *** application in actual power systems shows that it has a good application perspective.

关键词： Test platform Transient instability detection and control PMU WAMS

Difference between grid connections of large-scale wind power and conventional synchronous generation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Global energy Interconnection 2020年第5期3卷 486-493页

作者： Jie Li Chao Liu Pengfei Zhang Yafeng Wang Jun Rong state Gird Beijing Electric Power Company Xicheng DistrictBeijing 100031P.R.China China Electric Power Research Institute Haidian DistrictBeijing 100192P.R.China Independent Power Transmission Operator S.A. 89 Dyrrachiou str.&Kifisou 10443AthensGreece state Grid International Development Co. LtdXicheng DistrictBeijing 100031P.R.China

In China, regions with abundant wind energy resources are generally located at the end of power grids. The power grid architecture in these regions is typically not sufficiently strong, and the energy structure is relatively simple. Thus, connecting large-capacity wind power units complicates the peak load regulation and stable operation of the power grids in these regions. Most wind turbines use power electronic converter technology, which affects the safety and stability of the power grid differently compared with conventional synchronous generators. Furthermore, fluctuations in wind power cause fluctuations in the output of wind farms, making it difficult to create and implement suitable power generation plans for wind farms. The generation technology and grid connection scheme for wind power and conventional thermal power generation differ considerably. Moreover, the active and reactive power control abilities of wind turbines are weaker than those of thermal power units, necessitating additional equipment to control wind turbines. Hence, to address the aforementioned issues with large-scale wind power generation, this study analyzes the differences between the grid connection and collection strategies for wind power bases and thermal power plants. Based on this analysis, the differences in the power control modes of wind power and thermal power are further investigated. Finally, the stability of different control modes is analyzed through simulation. The findings can be beneficial for the planning and development of large-scale wind power generation farms.

关键词： Large-scale wind power generation Conventional synchronous generators Grid connection scheme Power control

Two-stage distributionally robust optimization-based coordinated scheduling of integrated energy system with electricity-hydrogen hybrid energy storage

在线全文

学校读者我要写书评

暂无评论

Protection and control of Modern Power systems 2023年第2期8卷 278-291页

作者： Yibin Qiu Qi Li Yuxuan Ai Weirong Chen Mohamed Benbouzid Shukui Liu Fei Gao School of Electrical Engineering Southwest Jiaotong UniversityChengdu 610031China Institut National des Sciences Appliquées de Rennes 35700 RennesFrance UMR CNRS 6027 IRDL University of Brest29238 BrestFrance Logistics Engineering College Shanghai Maritime UniversityShanghai 201306China Chengdu Power Supply Company State Grid Sichuan Electric Power CompanyChengdu 610000China CNRS Institut FEMTO-STUniversitéde Technologie de Belfort-Montbéliard90000 BelfortFrance.

A coordinated scheduling model based on two-stage distributionally robust optimization(TSDRO)is proposed for integrated energy systems(IESs)with electricity-hydrogen hybrid energy *** scheduling problem of the IES is divided into two stages in the TSDRO-based coordinated scheduling *** first stage addresses the day-ahead optimal scheduling problem of the IES under deterministic forecasting information,while the sec-ond stage uses a distributionally robust optimization method to determine the intraday rescheduling problem under high-order uncertainties,building upon the results of the first *** scheduling model also considers col-laboration among the electricity,thermal,and gas networks,focusing on economic operation and carbon *** flexibility of these networks and the energy gradient utilization of hydrogen units during operation are also incor-porated into the *** improve computational efficiency,the nonlinear formulations in the TSDRO-based coordinated scheduling model are properly linearized to obtain a Mixed-Integer Linear Programming *** Column-Constraint Generation(C&CG)algorithm is then employed to decompose the scheduling model into a mas-ter problem and *** the iterative solution of the master problem and subproblems,an efficient analysis of the coordinated scheduling model is ***,the effectiveness of the proposed TSDRO-based coordinated scheduling model is verified through case *** simulation results demonstrate that the proposed TSDRO-based coordinated scheduling model can effectively accomplish the optimal scheduling task while consider-ing the uncertainty and flexibility of the *** with traditional methods,the proposed TSDRO-based coordinated scheduling model can better balance conservativeness and robustness.

关键词： Two-stage distributionally robust optimization Optimal scheduling Integrated energy systems Hydrogen Uncertainty

Aggregated impact of allowance allocation and power dispatching on emission reduction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Modern Power systems and Clean energy 2017年第6期5卷 936-946页

作者： Chao JIANG Yusheng XUE Jie HUANG Feng XUE Fushuan WEN Kang LI Nanjing University of Science and Technology(NJUST) Nanjing 210094China state Grid Electric Power Research Institute(SGEPRI) Nanjing 211000China Universiti Teknologi Brunei(UTB) Brunei MuaraBrunei Queen’s University BelfastUK

Climate change has become one of the most important issues for the sustainable development of social *** has made great efforts in reducing CO2 emissions and promoting clean *** Emission Trading systems(ETSs)have been launched in two provinces and five cities in China,and a national level ETS will be implemented in the third quarter of 2017,with preparations for China’s national ETS now well under *** the meantime,a new round of China’s electric power system reform has entered the implementation *** variables from both electricity and emission markets willimpose potential risks on the operation of generation companies(Gen Cos).Under this situation,by selecting key variables in each domain,this paper analyzes the combined effects of different allowance allocation methods and power dispatching models on power system *** parameters are set based on a provincial power system in China,and the case studies are conducted based on dynamic simulation platform for macro-energy systems(DSMES)software developed by the *** selected power dispatching models include planned dispatch,energy saving power generation dispatch and economic *** selected initial allowance allocation methods in the emission market include the grandfathering method based on historical emissions and the benchmarking method based on actual *** on the simulation results and discussions,several policy implications are highlighted to help to design an effective emission market in China.

关键词： Emission trading system(ETS) Allowance allocation Power dispatching Generation company Emission reduction