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Enhancing Autonomy Capability in Regional Power Grids:A Strategic Planning Approach withMultiple Autonomous Evaluation Indexes

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energy Engineering 2024年第9期121卷 2449-2477页

作者： Jie Ma Tong Zhao Yuanzhao Hao Wenwen Qin Haozheng Yu Mingxuan Du Yuanhong Liu Liang Zhang Shixia Mu Cuiping Li Junhui Li Planning and Assessment Center Department State Grid Henan Economic Research InstituteZhengzhou450000China Key Laboratory of Modern Power System Simulation and control&Renewable energy Technology Ministry of EducationNortheast Electric Power UniversityJilin132012China development Planning Department State Grid Henan Electric Power CompanyZhengzhou450000China Innovation development Research Center State Grid Shanghai Energy Internet Research Institute Co.Ltd.Shanghai201210China State Grid Simulation Center China Electric Power Research Institute Co.Ltd.Beijing100192China

After the integration of large-scale DistributedGeneration(DG)into the distribution network,the randomness and volatility of its output result in a reduction of spatiotemporal alignment between power generation and demand in the distribution network,exacerbating the phenomenon of wind and solar power *** a novel power system model,the fundamental concept of Regional Autonomous Power Grids(RAPGs)is to achieve localized management and energy autonomy,thereby facilitating the effective consumption of ***,this paper proposes a distributed resource planning strategy that enhances the autonomy capabilities of regional power grids by considering multiple evaluation indexes for ***,a regional energy Storage(ES)configuration strategy is *** strategy can select a suitable reference value for the upper limit of ES configuration based on the regional load andDGoutput to maximize the elimination of source load deviations in the region as the upper limit constraint of ES ***,a control strategy for regional ES is proposed,the charging and discharging reference line of ES is set,and multiple autonomy and economic indexes are used as objective functions to select different proportions of ES to control the distributed resources of the regional power grid and establish evaluation indexes of the internal regional generation and load power ratio,the proportion of power supply matching hours,new energy consumption rate and tie line power imbalance outside the region to evaluate changes in the regional autonomy *** final simulation results showthat in the real regional grid example,the planning method in the planning year in the region of the overall power supply matching hour ratio and new energy consumption rate increased by 3.9%and 4.8%on average,and the power imbalance of the tie line decreased by 7.8%on *** proposed planning approach enables the maximization of regional autonomy while effectively smoothing the fluct

关键词： Regional autonomous power grid distributed generation distributed energy storage regional planning strategy evaluation index

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Two-Stage Optimal Scheduling of community Integrated energy System

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energy Engineering 2024年第2期121卷 405-424页

作者： Ming Li Rifucairen Fu Tuerhong Yaxiaer Yunping Zheng Abiao Huang Ronghui Liu Shunfu Lin new Power System Technology Research Institute The Electric Power Research Institute of State Grid Xinjiang Electric Power Co.Ltd.Urumqi830000China The college of Electrical Engineering Shanghai University of Electric PowerShanghai200090China

From the perspective of a community energy operator,a two-stage optimal scheduling model of a community integrated energy system is proposed by integrating information on controllable *** day-ahead scheduling analyzes whether various controllable loads participate in the optimization and investigates the impact of their responses on the operating economy of the community integrated energy system(IES)before and after;the intra-day scheduling proposes a two-stage rolling optimization model based on the day-ahead scheduling scheme,taking into account the fluctuation of wind turbine output and load within a short period of time and according to the different response rates of heat and cooling power,and solves the adjusted output of each controllable *** simulation results show that the optimal scheduling of controllable loads effectively reduces the comprehensive operating costs of community IES;the two-stage optimal scheduling model can meet the energy demand of customers while effectively and timely suppressing the random fluctuations on both sides of the source and load during the intra-day stage,realizing the economic and smooth operation of IES.

关键词： Integrated energy system two-stage optimal scheduling controllable loads rolling optimization

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Research status, hot spots, difficulties and future development direction of microbial geoengineering

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Journal of Road Engineering 2024年第2期4卷 234-255页

作者： Yingxin Zhou Zhiqing Li Peng Zhang Qi Wang Weilin Pan Shuangjiao Wang Xiongyao Xie Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China Yunnan communications Investment&construction Group co. Ltd.Kunming 650103China Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China college of Earth and Planetary Science University of Chinese Academy of SciencesBeijing 100049China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China China energy Technology and Economics Research Institute Beijing 102211China Cangzhou Qugang Expressway construction co. Ltd.Cangzhou 062450China Henan Yelu Expressway construction co. Ltd.Pingdingshan 467000China Beijing Zhongyan Tiandi Technology co. Ltd.Beijing 100029China

Microbial geoengineering technology,as a new eco-friendly rock and soil improvement and reinforcement technology,has a wide application ***,this technology still has many deficiencies and is difficult to achieve efficient curing,which has become the bottleneck of large-scale field *** paper reviews the research status,hot spots,difficulties and future development direction microbial induced calcium carbonate precipitation(MICP)*** principle of solidification and the physical and mechanical properties of improved rock and soil are systematically *** solidification efficiency is mainly affected by the reactant itself and the external *** present,the MICP technology has been preliminarily applied in the fields of soil solidification,crack repair,anti-seepage treatment,pollution repair and microbial ***,the technology is currently mainly limited to the laboratory level due to the difficulty of homogeneous mineralization,uneconomical reactants,short microbial activity period and large environmental interference,incidental toxicity of metabolites and poor field *** directions include improving the uniformity of mineralization by improving grouting methods,improving urease persistence by improving urease activity,and improving the adaptability of bacteria to the environment by optimizing bacterial ***,the authors point out the economic advantages of combining soybean peptone,soybean meal and cottonseed as carbon source with phosphogypsum as calcium source to induce Caco3.

关键词： Microbial geoengineering Microbial induced calcium carbonate precipitation Bacillus pasteurii Urease Phosphogypsum

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Synthesis of Polyethylenes with In-Chain Isolated Carbonyls from co_(2)and Ethylene via a Tandem Photoreduction/Polymerization Protocol

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CCS Chemistry 2024年第6期6卷 1591-1599页

作者： Fulin Zhou Haojie Dai Shan Tang Yongfeng Zhou Frontiers Science Center for Transformative Molecules Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240

Aiming at accessing polyethylene-bearing in-chain degradable functionality,copolymerization of carbon dioxide(co_(2))with ethylene has long been recognized as a significant but highly challenging ***,most trials have resulted in ethylene homopolymerization because of the endothermic property and high energy barriers of co_(2)insertion during polymer chain *** we report an unprecedented tandem reaction protocol for the synthesis of polyethylenes with in-chain carbonyls from co_(2)and ethylene by the combination of photocatalytic co_(2)reduction and palladium-catalyzed coordination/insertion *** protocol provides an easy way to adjust the carbonyl content(from 0.13 to 12 mol%)and insertion selectivity(up to 99%isolated carbonyls)of the polyethylene copolymers,which enables the polymers tomaintain the main properties of highdensity polyethylene and simultaneously endows them with good *** addition,besides apolar polyethylene copolymers,polar-functionalized polyethylenes with in-chain isolated carbonyls can also be synthesized from co_(2),ethylene and a polar monomer using the same *** believe our present work sheds new light on the synthesis of degradable polyethylenes by employing co_(2)as a green carbonyl source.

关键词： carbon dioxide coordination polymerization polyethylene photoreduction photodegradation

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Experiment study on micro-structure on different crystallographic planes of mc-Si etched in alkaline solution

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Science China(Technological Sciences) 2012年第6期55卷 1509-1514页

作者： WANG KunXia FENG ShiMeng XU HuaTian TIAN JiaTong YANG ShuQuan HUANG JianHua PEI Jun Department of Physics Shanghai Jiao Tong UniversityShanghai 200240China shanghai Academy of Spaceflight Technology Shanghai 200235China Solarfun Power Holdings Solarfun Solar shanghai Jiao Tong University R&D Center Shanghai 201109China shanghai shenzhou new energy source development co.ltd Shanghai 20112China

The investigation of multi-crystalline silicon(mc-Si) surface etching technology is a key point in solar cell *** this paper,mc-Si surface was etched in the common alkaline solution modified by an additive for 20 minutes at 78-80°***' surface morphology was observed by scanning electron microscope(SEM).It is firstly found that the etched mc-Si surface has the uniform distribution of trap pits although the morphologies of trap pits are slightly different on different crystallographic ***(100) plane was covered with many small Si-mountain ranges or long V-shape channels arranged in a crisscross ***(110) plane and(111) plane,they were full of a lot of triangle pit-traps(or quadrilateral holes) and twisted earthworm trap pits,*** measured reflectance of the sample was 20.5% at wavelength range of 400-900 *** results illustrate that alkaline solution modified by an additive can effectively etch out trap pits with a good trapping light effect on mc-Si *** method should be very valuable for mc-Si solar cells.

关键词：蚀刻技术碱性溶液晶面微结构扫描电子显微镜太阳能电池 Si表面实验

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Landscape of global urban environmental resistome and its association with local socioeconomic and medical status

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Science China(Life Sciences) 2024年第6期67卷 1292-1301页

作者： Jun Wu Yige Hu Michael H Perlin David Danko Jun Lu Manuela Oliveira Johannes Werner Maria M Zambrano Maria A Sierra Olayinka O Osuolale Paweł Łabaj Nicolás Rascovan Nur Hazlin Hazrin-Chong Soojin Jang Haruo Suzuki Marina Nieto-Caballero Bharath Prithiviraj Patrick K H Lee Agnieszka Chmielarczyk Anna Różańska Yongxiang Zhao Lan Wang Christopher E Mason Tieliu Shi Center for Bioinformatics and computational Biology and the Institute of Biomedical SciencesSchool of Life SciencesEast China Normal UniversityShanghai 200241China Department of Biology Program on Disease EvolutionUniversity of LouisvilleLouisville 40292USA Weill cornell Medicine New York 10065USA The Bin Talal Bin Abdulaziz Alsaud Institute for computational Biomedicine New York 10065USA Department of Pulmonary Medicine Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghai 200025China i3S-Instituto de Investiga玢o e Inova玢o em Saúde Universidade do PortoPorto 4050-290Portugal Ipatimup-Instituto de Patologia e Imunologia Molecular da Universidade do Porto Porto 4200-465Portugal Departamento de Biologia Faculdade de CiênciasUniversidade do PortoPorto 4050-290Portugal High Performance and Cloud computing Group Zentrum für Datenverarbeitung(ZDV)Eberhard Karls University of TübingenW鋍hterstra遝7672074TübingenGermany corporación corpogen Research Center Bogotá110311Colombia Applied Environmental Metagenomics and Infectious Diseases Research(AEMIDR) Department of Biological SciencesElizade UniversityIlara-Mokin 340271Nigeria Maopolska Centre of Biotechnology Jagiellonian UniversityKraków 30-005Poland Aix-Marseille Université Mediterranean Institute of OceanologyUniversitéde ToulonCNRSIRDUM 110Marseille 83041France Department of Biological Sciences and Biotechnology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 UKM BangiSelangor Institut Pasteur Korea Seoul 13488Republic of Korea Faculty of Environment and Information Studies Keio UniversityFujisawaKanagawa 252-0882Japan University of colorado at Boulder CivilEnvironmental and Architectural DepartmentBoulder 80303USA Brooklyn college of the City University of new York Brooklyn 11210USA School of energy and Environment City University of Hong KongHong Kong 999077China Department of Microbiology Faculty of MedicineJagiellonian UniversityKraków 30-005Poland Biological Targeting Diagnosis and The

Antimicrobial resistance(AMR)poses a critical threat to global health and development,with environmental factors—particularly in urban areas—contributing significantly to the spread of antibiotic resistance genes(ARGs).However,most research to date has been conducted at a local level,leaving significant gaps in our understanding of the global status of antibiotic resistance in urban *** address this issue,we thoroughly analyzed a total of 86,213 ARGs detected within 4,728 metagenome samples,which were collected by the Meta SUB International consortium involving diverse urban environments in 60 cities of 27 countries,utilizing a deep-learning based *** findings demonstrated the strong geographical specificity of urban environmental resistome,and their correlation with various local socioeconomic and medical *** also identified distinctive evolutionary patterns of ARG-related biosynthetic gene clusters(BGCs)across different countries,and discovered that the urban environment represents a rich source of novel *** study provides a comprehensive overview of the global urban environmental resistome,and fills a significant gap in our knowledge of large-scale urban antibiotic resistome analysis.

关键词： urban environment metagenome antibiotic resistance resistance diversity biosynthetic gene clusters

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Novel development of VO_(x)-CeO_(x)-WO_(x)/TiO_(2) catalyst for low-temperature catalytic oxidation of chloroaromatic organics

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Waste Disposal and Sustainable energy 2022年第4期4卷 259-269页

作者： Yunfeng Ma Jianwen Lai Jiayao Wu Xiaoqing Lin Hong Yu Hao Zhang Angjian Wu Jisheng Long Xiaodong Li State Key Laboratory for Clean energy Utilization Institute for Thermal Power EngineeringZhejiang UniversityHangzhou310027China shanghai SUS ENVIRONMENT co. LTDShanghai201703China

A novel selective catalytic reduction(SCR)catalyst with high catalytic activity on chloroaromatic organics at lower temperatures(160-180℃)is critical for municipal solid waste incineration(MSWI)*** study prepares a series of honeycomb-type VO_(x)/TiO_(2) catalysts and finally develops a new low-temperature catalyst with high catalytic activity in eliminating chloroaromatic *** on the conversion efficiency(CE)of 1,2-dichlorobenzene(1,2-DCB)and co_(2) selectivity,the optimal VO_(x) content of 4.06%(in weight)in VO_(x)/TiO_(2) catalyst is first *** modifying CeO_(x) and WO_(x),a novel honeycomb-type catalyst of VO_(x)-CeO_(x)-WO_(x)/TiO_(2) achieves the highest CE(93.1%-93.6%)and co_(2) selectivity(40.9%-60.7%)at 150-200℃.It was found that the CeO_(x) and WO_(x) can improve the catalytic activity by enriching the surface content of V and O,increasing the proportion of V5+and Osurf,enlarging the supply source of reactive oxygen species and their storage capacity,and accelerating the redox cycle of VO_(x),CeO_(x),WO_(x),and reactive oxygen *** study can guide the development of monolithic low-temperature catalysts with high catalytic activity in eliminating chloroaromatic organics in MSWI flue gas.

关键词： VO_(x)/TiO_(2)catalysts Honeycomb catalysts Catalytic activity 1,2-dichlorobenzene Modification of CeO_(x)and WOx

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A generic approach yields organic solar cells with enhanced efficiency and thermal stability

聚集体(英文)

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聚集体(英文) 2023年第2期4卷 318-328页

作者： Mengyuan Gao Kai Zhang Chunyong He Hanqiu Jiang Xiong Li Qingchun Qi Kangkang Zhou Yu Chen Wenchao Zhao Long Ye School of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic SciencesTianjin UniversityCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)TianjinChina Spallation Neutron source Science Center DongguanChina Institute of High energy Physics Chinese Academy of Sciences(CAS)BeijingChina Mettler Toledo ShanghaiChina co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjingChina

The use of deuterium are critical for promoting the fundamental understanding of aggregate materials and their new ***,the solution structure of conjugated polymers can be hardly resolved without ***,studies about the isotopic effects of casting solvents on the aggregated structures of photovoltaic polymers and their bulk-heterojunction blends are ***,the impact of deuterated solvents on the thermal behavior,aggregated structures,and device performance of photovoltaic polymers is clearly delineated for the first time by multiple *** enhanced π-π stacking order of photovoltaic polymers is highly relevant to their relatively poor miscibility with deuterated *** from higher crystallinity and optimized morphology of deuterated solvents processed films,the devices are able to achieve better efficiency and notable improvement in thermal *** results highlight the isotopic effects of solvents on the aggregated structure of conjugated polymer systems and reveal the potential of innovative approaches to fabricate thermally stable high-efficiency solar cells.

关键词： deuterated solvent organic solar cells phase separation scattering thermal stability

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Immobilization of trophic anaerobic acetogen for semi-continuous syngas fermentation

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Chinese Journal of Chemical Engineering 2021年第1期34卷 311-316页

作者： Lijuan Zhang Peng Hu Jiang Pan Huilei Yu Jianhe Xu State Key Laboratory of Bioreactor Engineering Shanghai Collaborative Innovation Centre for BiomanufacturingEast China University of Science and TechnologyShanghai 200237China shanghai GTL Biotech co.ltd. Shanghai 200438China

The massive consumption of fossil energy force s people to find new source s of *** fermentation has become a hot research field as its high potential in renewable energy production and sustainable *** this study,trophic anaerobic acetogen Morella thermoacetica was successfully immobilized by calcium alginate embedding *** ability of the immobilized cells on production of acetic acid through syngas fermentation was compared in both airlift and bubble column *** bubble column bioreactor was selected as the better type of *** production of acetic acid reached 32.3 g·L^(-1) in bubble column bioreactor with a space-time yield of 2.13 g·L^(-1)·d^(-1).The immobilized acetogen could be efficiently reused without significant lag period,even if exposed to air for a short time.A semi-continuous syngas fermentation was performed using immobilized cells,with an average space-time acetic acid yield of 3.20 g·L^(-1)·d^(-1).After 30 days of fermentation,no significant decrea se of the acetic acid production rate was observed.

关键词： Anaerobic Syngas Acetic acid Immobilization Bioreactors Semi-continuous fermentation

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Improving Efficiency by Thermodynamic and Gravitational Cycle

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energy and Power Engineering 2017年第4期9卷 250-260页

作者： Zhang Quan shanghai Kongtai energy Techonolgy co. Ltd Shanghai China

The efficiency of Rankine cycle and its derivative cycles are severely affected by droplets condensed in the process of vapor expansion, which not only limit its maximum efficiency, but also cause extremely low efficiency around 3% when using low grade heat source. This paper introduces a new theory of Thermodynamic and Gravitational Cycle to explain the concept of MLC, and analyses the reasons MLC OTEC cannot be realized till now. Then The concept of Thermodynamic and Gravitational Closed-Cycle (TGCC) to overcome disadvantage of Rankine and MLC cycle are proposed, and its especial cycle process and efficiency model in detail are discussed. And then we propose a method of combining vapor with mist lift to improve efficiency further, and analyze the new ideal efficiency model (a maximum up to 18.17%) using carbon dioxide sample, indicate the dryness of liquid-vapor mixture is the key factor to improve efficiency. In conclusion, TGCC with mist lift has the potential to significantly improve efficiency and reduce the cost of electricity produced from low grade heat source, such as OTEC and industrial waste heat.

关键词： Thermodynamic and Gravitational Cycle Mist Lift Height Droplet Low Grade Heat source

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