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A coordinated operation method of wind-PV-hydrogenstorage multi-agent energy system

Global Energy Interconnection 2024年第4期7卷 446-461页

作者： Tengfei Ma Wei Pei Yanhong Yang Hao Xiao Chenghong Tang Weiqi Hua Institute of Electrical Engineering of Chinese Academy of Sciences Beijing 100190P.R.China State Grid Electric Power Research Institute Nanjing 211103P.R.China Department of Electronic Electrical and Systems EngineeringUniversity of BirminghamBirmingham B152TTUK

Wind-photovoltaic(PV)-hydrogen-storage multi-agent energy systems are expected to play an important role in promoting renewable power utilization and *** this study,a coordinated operation method was proposed for a wind-PVhydrogen-storage multi-agent energy ***,a coordinated operation model was formulated for each agent considering peer-to-peer power ***,a coordinated operation interactive framework for a multi-agent energy system was proposed based on the theory of the alternating direction method of ***,a distributed interactive algorithm was proposed to protect the privacy of each agent and solve coordinated operation ***,the effectiveness of the proposed coordinated operation method was tested on multi-agent energy systems with different structures,and the operational revenues of the wind power,PV,hydrogen,and energy storage agents of the proposed coordinated operation model were improved by approximately 59.19%,233.28%,16.75%,and 145.56%,respectively,compared with the independent operation model.

关键词： Wind-PV-hydrogen-storage Multi-agent energy system Renewable power to hydrogen coordinated operation Peer-to-peer power trading

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Robustly coordinated operation of an Emission-free Microgrid with Hybrid Hydrogen-battery Energy Storage

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CSEE Journal of Power and Energy Systems 2022年第2期8卷 369-379页

作者： Feilong Fan Rui Zhang Yan Xu Shuyun Ren the Energy Research Institute@NTU Nanyang Technological UniversitySingapore and he is also with the College of Smart EnergyShanghai Jiao Tong UniversityShanghai 200240China the School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore School of Electrical Engineering and Telecommunications The University of New South WalesSydneyAustralia Guangdong University of Technology Guangzhou 510006China

High intermittence of renewable energy resources(RESs)and restriction for greenhouse gas(GHG)emissions have significantly challenged the operations of traditional diesel generator(DG)based *** paper considers an emission-free microgid with hybrid hydrogen-battery energy storage(HHBES)and proposes a coordinated operational strategy to minimize its daily operation *** addition to the electricity purchase costs in the day-ahead market and the operational costs of RESs,the total degradation cost of HHBES is also included in the cost *** proposed operational strategy consists of two coordinated *** the day-ahead stage,the schedule for the tie-line power is exchanged with the main grid,the output power of the fuel cell(FC)and the input power of the electrolysis device(ED)are optimized under the worst case of uncertain power output from RESs and power demand from electricity loads(ELs).At the intra-day stage,the battery power is determined according to the short-term prediction for the power of RESs and *** problem is formulated as a robust optimization model and solved by a two-level column-andconstraint-generation(C&CG)*** simulations using Australian energy market operator(AEMO)data are carried out to validate the effectiveness of the proposed strategy.

关键词： Column-and-constraint-generation algorithm coordinated operation emission-free microgrid hybrid hydrogen-battery storage robust optimization

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Trajectory planning and base attitude restoration of dual-arm free-floating space robot by enhanced bidirectional approach

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Frontiers of Mechanical Engineering 2022年第1期17卷 2-17页

作者： Zongwu XIE Xiaoyu ZHAO Zainan JIANG Haitao YANG Chongyang LI State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001China Robotic System Department Jiangsu Jitri-Hust Intelligent Equipment TechnologyWuxi 214000China

When free-floating space robots perform space tasks,the satellite base attitude is disturbed by the dynamic *** disturbance of the base orientation may affect the communication between the space robot and the control center on *** this paper,the enhanced bidirectional approach is proposed to plan the manipulator trajectory and eliminate the final base attitude variation.A novel acceleration level state equation for the nonholonomic problem is proposed,and a new intermediate variable-based Lyapunov function is derived and solved for smooth joint trajectory and restorable base *** the method,the state equation is first proposed for dual-arm robots with and without end constraints,and the system stability is analyzed to obtain the system *** input modification further increases the system stability and simplifies the calculation *** are carried out in the end,and the proposed method is validated in minimizing final base attitude change and trajectory ***,the minute internal force during the coordinated operation and the considerable computing efficiency increases the feasibility of the method during space tasks.

关键词： free-floating space robot dual arm coordinated operation base attitude restoration bidirectional approach

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Energy Management of Networked Smart Railway Stations Considering Regenerative Braking, Energy Storage System, and Photovoltaic Units

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Energy Engineering 2023年第1期120卷 69-86页

作者： Saeed Akbari Seyed Saeed Fazel Hamed Hashemi-Dezaki School of Railway Engineering Iran University of Science and TechnologyTehran13114-16846Iran Department of Electrical and Computer Engineering University of KashanKashan***Iran Research and Innovational Center for Electrical Engineering(RICE) Faculty of Electrical EngineeringUniversity ofWest Bohemia(UWB)Pilsen30100Czech Republic

The networking of microgrids has received significant attention in the form of a smart *** this paper,a set of smart railway stations,which is assumed as microgrids,is connected *** has been tried to manage the energy exchanged between the networked microgrids to reduce received energy from the utility ***,the operational costs of stations under various conditions decrease by applying the proposed *** smart railway stations are studied in the presence of photovoltaic(PV)units,energy storage systems(ESSs),and regenerative braking *** regenerative braking is one of the essential ***,the stochastic behaviors of the ESS’s initial state of energy and the uncertainty of PV power generation are taken into account through a scenario-based *** networked microgrid scheme of railway stations(based on coordinated operation and scheduling)and independent operation of railway stations are *** proposed method is applied to realistic case studies,including three stations of Line 3 of Tehran Urban and Suburban Railway operation Company(TUSROC).The rolling stock is simulated in the MATLAB ***,the coordinated operation of networked microgrids and independent operation of railway stations are optimized in the GAMS environment utilizing mixed-integer linear programming(MILP).

关键词： Energy management system(EMS) smart railway stations coordinated operation photovoltaic generation regenerative braking uncertainty scenario-based model mixed-integer linear programming(MILP)

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