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Energy Blockchain in Smart co.munities: Towards Affordable Clean Energy Supply for the Built Environment

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Energy Engineering 2024年第8期121卷 2313-2330页

作者： Mingguan Zhao Lida Liao Penglong Liang Meng Li Xinsheng Dong Yang Yang Hongxia Wang Zhenhao Zhang Electric Power research institute State Grid Xinjiang Electric Power Co.Ltd.Urumqi830013China School of Energy and Power Engineering Changsha University of Science&TechnologyChangsha410114China Kumul Power Supply co.pany State Grid Xinjiang Electric Power Co.Ltd.Urumqi830013China Xinjiang Key Laboratory of Extreme Environment Operation and Detection Technology of Power Transmission&Transformation Equipment Urumqi830013China

The rapid growth of distributed renewable energy penetration is promoting the evolution of the energy system toward decentralization and decentralized and digitized smart *** study was based on energy blockchain,and developed a dual-biding mechanism based on the real-time energy surplus and demand in the local smart grid,which is expected to enable reliable,affordable,and clean energy supply in smart *** the proposed system,economic benefits co.ld be achieved by replacing fossil-fuel-based electricity with the high penetration of affordable solar PV *** reduction of energy surplus realized by distributed energy production and P2P energy trading,within the smart grid results in less transmission loss and lower requirements for co.tly upgrading of existing *** adopting energy blockchain and smart co.tract technologies,energy secure trading with a low risk of privacy leakage co.ld be *** prototype is examined through a case study,and the feasibility and efficiency of the proposed mechanism are further validated by scenario analysis.

关键词： Solar PV smart co.munity energy blockchain P2P energy trading smart grid affordable energy supply

Two-Stage Planning of Distributed Power Supply and Energy Storage Capacity co.sidering Hierarchical Partition co.trol of Distribution Network with Source-Load-Storage

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Energy Engineering 2024年第9期121卷 2389-2408页

作者： Junhui Li Yuqing Zhang Can Chen Xiaoxiao Wang Yinchi Shao Xingxu Zhu Cuiping Li Key Laboratory of Modern Power System Simulation and co.trol&Renewable Energy Technology Ministry of Education(Northeast Electric Power University)Jilin132012China state grid Jibei Electric Power co. Ltd.Electric Power Research InstituteBeijing100045China

Aiming at the co.sumption problems caused by the high proportion of renewable energy being co.nected to the distribution network,it also aims to improve the power supply reliability of the power system and reduce the operating co.ts of the power *** paper proposes a two-stage planning method for distributed generation and energy storage systems that co.siders the hierarchical partitioning of ***,an electrical distance structural index that co.prehensively co.siders active power output and reactive power output is proposed to divide the distributed generation voltage regulation domain and determine the access location and number of distributed power ***,a two-stage planning is carried out based on the zoning *** the phase 1 distribution network-zoning optimization layer,the network loss is minimized so that the node voltage in the area does not exceed the limit,and the distributed generation co.figuration results are initially determined;in phase 2,the partition-node optimization layer is planned with the goal of economic optimization,and the distance-based improved ant lion algorithm is used to solve the problem to obtain the optimal distributed generation and energy storage ***,the IEEE33 node systemwas used for *** results showed that the voltage quality was significantly improved after optimization,and the overall revenue increased by about 20.6%,verifying the effectiveness of the two-stage planning.

关键词： Zoning co.trol two-stage planning site selection and capacity determination optimized scheduling improved ant lion algorithm

A Disturbance Localization Method for Power System Based on Group Sparse Representation and Entropy Weight Method

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Energy Engineering 2024年第8期121卷 2275-2291页

作者： Zeyi Wang Mingxi Jiao Daliang Wang Minxu Liu Minglei Jiang He Wang Shiqiang Li Changchun Power Supply co.pany State Grid Jilin Electric Power Co.Ltd.Changchun130021China economic and Technical research institute State Grid Jilin Electric Power Co.Ltd.Changchun130022China Key Laboratory of Modern Power System Simulation and co.trol&Renewable Energy Technology Northeast Electric Power UniversityJilin132012China

This paper addresses the problem of co.plex and challenging disturbance localization in the current power system operation environment by proposing a disturbance localization method for power systems based on group sparse representation and entropy weight *** different electrical quantities are selected as observations in the co.pressed sensing *** entropy weighting method is employed to calculate the weights of different observations based on their relative disturbance ***,by leveraging the topological information of the power system and pre-designing an overco.plete dictionary of disturbances based on the co.responding system parameter variations caused by disturbances,an improved Joint Generalized Orthogonal Matching Pursuit(J-GOMP)algorithm is utilized for *** reco.structed sparse vectors are divided into three *** at least two parts have co.sistent node identifiers,the node is identified as the disturbance *** the node identifiers in all three parts are inco.sistent,further analysis is co.ducted co.sidering the weights to determine the disturbance *** results based on the IEEE 39-bus system model demonstrate that the proposed method,utilizing electrical quantity information from only 8 measurement points,effectively locates disturbance positions and is applicable to various disturbance types with strong noise resistance.

关键词： Disturbance location co.pressed sensing group sparse representation entropy power method GOMP algorithm

Genetically modified pigs with CD163 point mutation are resistant to HP-PRRSV infection

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Zoological research 2024年第4期45卷 833-844页

作者： Ying Liu Lin Yang Hong-Yong Xiang Ming Niu Jia-Cheng Deng Xue-Yuan Li Wen-Jie Hao Hong-Sheng Ou-Yang Tong-Yu Liu Xiao-Chun Tang Da-Xin Pang Hong-Ming Yuan state Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases Animal Genome Editing Technology Innovation CenterCollege of Animal SciencesJilin UniversityChangchunJilin 130062China Chifeng Best Genetics Technology co. Ltd.ChifengNei Mongol 024000China Chongqing Jitang Biotechnology research institute co. Ltd.Chongqing 400015China

Porcine reproductive and respiratory syndrome(PRRS)is a globally prevalent co.tagious disease caused by the positive-strand RNA PRRS virus(PRRSV),resulting in substantial economic losses in the swine *** the CD163 SRCR5 domain,either through deletion or substitution,can eff1ectively co.fer resistance to PRRSV infection in ***,large fragment modifications in pigs inevitably raise co.cerns about potential adverse effects on growth *** the impact of genetic modifications on normal physiological functions is a promising direction for developing PRRSV-resistant *** the current study,we identified a specific functional amino acid in CD163 that influences PRRSV *** infection experiments co.ducted on Marc145 and PK-15CD163 cells illustrated that the mE535G or co.responding pE529G mutations markedly inhibited highly pathogenic PRRSV(HP-PRRSV)proliferation by preventing viral binding and ***,individual viral challenge tests revealed that pigs with the E529G mutation had viral loads two orders of magnitude lower than wild-type(WT)pigs,co.firming effective resistance to *** of the physiological indicators and scavenger function of CD163 verified no significant differences between the WT and E529G *** findings suggest that E529G pigs can be used for breeding PRRSV-resistant pigs,providing novel insights into co.trolling future PRRSV outbreaks.

关键词： PRRSV CD163 Point mutation E529G Pigs

A co.sortium Blockchain-enabled Double Auction Mechanism for Peer-to-peer Energy Trading among Prosumers

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Protection and co.trol of Modern Power Systems 2024年第3期9卷 82-97页

作者： Shichang Cui Shuang Xu Fei Hu Yong Zhao Jinyu Wen Jinsong Wang the state Key Laboratory of Advanced Electromagnetic Engineering and Technology the School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan430074China. the state grid Hubei Electrical Power co. Ltd.Economics Research InstituteWuhanChina. Huazhong University of Science and Technology the School of Electrical and Electronics Engineering HUST Case Western Reserve University ClevelandUSA IEEE

This paper investigates a double auction-based peer-to-peer(P2P)energy trading market for a co.munity of renewable prosumers with private information on reservation price and quantity of energy to be traded.A novel co.petition padding auction(CPA)mechanism for P2P energy trading is proposed to address the budget deficit problem while holding the advantages of the widely-used Vickrey-Clarke-Groves *** illustrate the theoretical properties of the CPA mechanism,the sufficient co.ditions are identified for a truth-telling equilibrium with a budget surplus to exist,while further proving its asymptotical economic *** addition,the CPA mechanism is implemented through co.sortium blockchain smart co.tracts to create safer,faster,and larger P2P energy trading *** proposed mechanism is embedded into blockchain co.sensus protoco.s for high co.sensus efficiency,and the budget surplus of the CPA mechanism motivates the prosumers to manage the *** studies are carried out to show the effectiveness of the proposed method.

关键词： Blockchain smart co.tract budget double auction mechanism economic efficiency peer-to-peer energy trading prosumers

Deco.position analysis of co.(2) emissions of electricity and carbon-reduction policy implication: a study of a province in China based on the logarithmic mean Divisia index method

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Clean Energy 2023年第2期7卷 340-349页

作者： Fuyuan Yang Xiaobin Yang Xueqin Tian Xinlei Wang Tong Xu state grid economic and technological research institute co. LtdBeijing102209China state grid Jiangxi Electric Power research institute State Grid Jiangxi Electric Power Co.LtdNanchangChina

As the proportion of electricity in final energy co.sumption gradually increases,co.(2) emissions reduction actions in the power system will beco.e the key to achieving China’s carbon-peak and carbon-neutrality *** is essential to analyse and quantify the driving forces of co.(2) emissions from electricity generation in the fossil-rich area in *** paper aims to identify the characteristics of co.(2) emissions generated by electricity and provide a basis for formulating co.(2)-reduction policies in power ***,we analyse the current state of co.(2) emissions from electricity generation in Anhui Province that was dominated by fossil energy during the period ***,we apply the logarithmic mean Divisia index method to find the nature of the factors influencing the changes in co.(2) ***,we analyse the co.(2)-reduction measures of each side of the source-network-load-storage of the power system in Anhui through a power-system carbon-reduction path analysis model proposed in this study and provide policy *** results showed the following.(i)co.(2) emissions in Anhui Province co.tinued to increase from 2010 to 2019 and the trend in the growth rate of co.(2) emissions presented approximately a u-shaped curve.(ii)economic activity has always been the dominant factor driving the growth of electricity co.(2) *** increase in the proportion of renewable energy in power generation,the improvement in thermal power-co.version efficiency and the decrease in the intensity of power co.sumption are the three major driving factors for the reduction in co.(2) emissions from power generation in Anhui.(iii)The co.(2)-reduction measures of the power system are provided in each link of the source-network-load-storage,such as developing the photovoltaic industry and building energy storage,upgrading and transforming co.l-fired power stations,redu-cing the loss rate of transmission lines on the grid side and improving the efficiency

关键词： co.(2)emissions LMDI electricity generation carbon-reduction measures

Network-co.strained Energy co.sumption Game for Dynamic Pricing Markets

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CSEE Journal of Power and Energy Systems 2022年第2期8卷 548-558页

作者： Yifei Wang Xiuli Wang Yi Kuang Qiao Peng Hongyang Zhao Zhidong Wang the Shannxi Key Laboratory of Smart grid School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China the state grid economic and technological research institute co. Ltd.Beijing 102209China

The electricity distribution network is experiencing a profound transformation with the co.cept of the smart grid,providing possibilities for selfish co.sumers to interact with the distribution system operator(DSO)and to maximize their individual energy co.sumption ***,this profitseeking behavior among co.sumers may violate the network co.straints,such as line flows,transformer capacity and bus voltage magnitude ***,a network-co.strained energy co.sumption(NCEC)game among active load aggregators(ALAs)is proposed to guarantee the safety of the distribution *** temporal and spatial co.straints of an ALA are both co.sidered,which leads the formulated model to a generalized Nash equilibrium problem(GNEP).By resorting to a well-developed variational inequality(VI)theory,we study the existence of solutions to the NCEC game ***,a two-level distributed algorithm is proposed to find the variational equilibrium(VE),a fair and stable solution to the formulated game ***,the effectiveness of the proposed game model and the efficiency of the distributed algorithm are tested on an IEEE-33 bus system.

关键词： Electricity distribution network generalized Nash equilibrium problem network-co.strained energy co.sumption game two-level distributed algorithm variational equilibrium

Optimal scheduling of wind-photovoltaic power-generation system based on a co.ula-based co.ditional value-at-risk model

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Clean Energy 2022年第4期6卷 550-556页

作者： Xin Ju Xiaomin Liu Shangke Liu Yangli Xiao state grid Ningxia economic and technological research institute YinchuanNingxiaChina

Increasing the application of renewable energy in the power system is an effective way to achieve the goal of‘Dual Carbon’.At the same time,the high proportion of renewable energy co.nected to the grid endangers the safe operation of the power *** solve this problem,this paper proposes the application of a co.ula function to describe the co.relation between wind power and photovoltaic power,and reduce the uncertainty of power-system operation with a high proportion of renewable *** order to increase the robustness of the model,this paper proposes the application of the co.ditional value-at-risk theory to co.struct the objective function of the model and effectively co.trol the tail risk of power-system operation *** case analysis,it is found that the model proposed in this paper has strong practicality and eco.omy.

关键词： renewable energy ‘Dual Carbon’targets co.ula-CVaR particle swarm optimization algorithm optimized scheduling

Transient Simulation and Optimization of Regional Integrated Energy System

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Energy Engineering 2022年第3期119卷 1031-1045页

作者： Xueqin Tian Mengran Cui Tong Xu Jinfei Sun Xinlei Wang Jiangxiang Guo De-Gejirifu Na Wang state grid economic and technological research institute co. Ltd.Beijing102209China Qingdao University of Technology Qingdao266033China

A modeling method of regional integrated energy system based on bus method and transient simulation is proposed,and the system optimization is based on the dynamic balance of supply and demand in the whole year energy supply cycle.A CCHP systemof gas turbine co.pled with ground source heat pump and electric refrigeration unit is *** energy relationship of the systemis described by bus structure,and the transient calculationmodel is built on TRNSYS *** weighted sum of annual total co.t saving rate,primary energy saving rate and environmental pollutant shadow co.t saving rate is taken as the optimized objective function,and on the basis of annual dynamic balance,the Hooke-Jeeves algorithm is used for optimization of the system co.figuration.A co.plex co.mercial area in Beijing is taken as an example,and different weighting co.fficients are set for optimization of the system *** results show that,from the perspective of eco.omy,environmental benefit and primary energy co.sumption,performance of the system increases and then decreases with rise of gas turbine power;under the simulated co.ling/heating load,the maximum number of optimum co.figuration is seen in the co.bination of 35 kW gas turbine+723 kW GSHP and 1178 kW electric chiller;in co.parison with traditional distributed system,the annual co.t saving rate,primary energy saving rate and environmental pollutant shadow co.t saving rate of the system are 29.4%,49.6%and 58.2%,respectively.

关键词： Integrated energy system transient simulation multi-objective optimization