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Implementation for a cloud battery management system based on the CHAIN framework

Energy and AI 2021年第3期5卷 133-140页

作者： shichun Yang Zhengjie Zhang Rui Cao Mingyue Wang Hanchao Cheng Lisheng Zhang Yinan Jiang Yonglin Li Binbin Chen Heping Ling Yubo Lian Billy wu Xinhua Liu School of Transportation Science and Engineering Beihang UniversityBeijingChina BYD Co.Ltd. 3009 BYD RoadPingshan DistrictShenzhenChina Dyson School of Design Engineering Imperial College LondonLondonUnited Kingdom The Faraday Institution Quad OneHarwell Science and Innovation CampusDidcotUnited Kingdom

An intelligent battery management system is a crucial enabler for energy storage systems with high power output,increased safety and long *** recent developments in cloud computing and the proliferation of big data,machine learning approaches have begun to deliver invaluable insights,which drives adaptive control of battery management systems(BMS)with improved *** this paper,a general framework utilizing an end-edge-cloud architecture for a cloud-based BMS is proposed,with the composition and function of each link ***-based BMS leverages from the Cyber Hierarchy and Interactional Network(CHAIN)framework to provide multi-scale insights,more advanced and efficient algorithms can be used to realize the state-of-X es-timation,thermal management,cell balancing,fault diagnosis and other functions of traditional BMS *** battery intelligent monitoring and management platform can visually present battery performance,store working-data to help in-depth understanding of the microscopic evolutionary law,and provide support for the development of control ***,the cloud-based BMS requires more effects on the multi-scale inte-grated modeling methods and remote upgrading capability of the controller,these two aspects are very important for the precise management and online upgrade of the *** utility of this approach is highlighted not only for automotive applications,but for any battery energy storage system,providing a holistic framework for future intelligent and connected battery management.

关键词： Battery CHAIN Cloud Battery management system SOX estimation end-edge-cloud architecture

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Optimal Power Flow Calculation of Active Distribution Network Based on Improved Comprehensive Technology

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wuhan University Journal of Natural Sciences 2022年第2期27卷 142-152页

作者： CAO Hongji LIU Daobing LI shichun JIN Zitong YUAN Ye XU Songlin College of Electrical Engineering and New Energy China Three Gorges UniversityYichang 443002HubeiChina Hubei Provincial Key Laboratory for Operation and Control of Cascade Hydropower Station China Three Gorges UniversityYichang 443002HubeiChina

Comprehensive unified power flow controller(UPFC)technology can calculate voltage control parameters of UPFC,but it increases the nonlinearity of Newton power flow *** the comprehensive technology is combined with the intelligent algorithm,the control parameters can only be optimized through the active and reactive power of UPFC on the branch,which makes the optimization convergence ***,an optimal power flow calculation method for active distribution network based on improved comprehensive technology is ***,based on the analysis of the influence of UPFC on branch power flow,an improved UPFC model is *** accuracy of UPFC control parameters is enhanced by adjusting the voltage phase angle and regulation radius of series side ***,the optimal control model considering UPFC is ***,the corresponding self-admittance and mutual admittance elements are extracted from the constructed UPFC model and introduced into the Jacobian matrix,so that while the comprehensive technology maintains the dimension of the Jacobian matrix,the intelligent algorithm can directly optimize the control parameters to reduce the search *** IEEE33 bus system is used for example simulation,the results before and after the improvement are compared,and the Monte Carlo method is used to calculate the two algorithms 50 times respectively based on the installation number of UPFC,which verifies that the proposed optimization method has better convergence and operation speed.

关键词： branch optimization optimal

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Recent development and progress of structural energy devices

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Chinese Chemical Letters 2022年第4期33卷 1817-1830页

作者： Yong Liu Zhongxun Yu Jia Chen Chenxi Li Zhengjie Zhang Xiaoyu Yan Xinhua Liu shichun Yang Beihang University Beijing 100191China College of Materials Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China

In order to fully replace the traditional fossil energy supply system, the efficiency of electrochemical energy conversion and storage of new energy technology needs to be continuously improved to enhance its market competitiveness. The structural design of energy devices can achieve satisfactory energy conversion and storage performance. To achieve lightweight design, improve mechanical support, enhance electrochemical performance, and adapt to the special shape of the device, the structural energy devices develop very quickly. To help researchers analyze the development and get clear on developing trend,this review is prepared. This review summarizes the latest developments in structural energy devices, including special attention to fuel cells, lithium-ion batteries, lithium metal batteries, and ***, the existing problems of structural energy devices are discussed, and the current challenges and future opportunities are summarized and prospected. Structural energy devices can undoubtedly overcome the performance bottlenecks of traditional energy devices, break the limitations of existing materials and structures, and provide a guidance for the development of equipment with high performance,light weight and low cost in the future.

关键词： Structural energy devices Fuel cells Lithium-ion batteries Lithium metal batteries Supercapacitors

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Characterizing the antibiotic resistance genes in a river catchment： Influence of anthropogenic activities

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Journal of Environmental Sciences 2018年第7期30卷 125-132页

作者： Haoyu Jiang Renjun Zhou Ying Yang Baowei Chen Zhineng Cheng Mengdi Zhang Jun Li Gan Zhang shichun Zou School of Marine Sciences Sun Yat-Sen University Guangzhou 510006 China State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Graduate University of the Chinese Academy of Sciences Beijing 100039 China

Previous studies on environmental antibiotics resistance genes（ARGs） have focused on the pollution sources such as wastewater treatment plants, aquaculture and livestock farms,etc. Few of them had addressed this issue in a regional scale such as river catchment. Hence,the occurrence and abundances of 23 ARGs were investigated in surface water samples collected from 38 sites which located from the river source to estuary of the Beijiang *** them, 11 ARGs were frequently detected in this region and 5 ARGs（sul Ⅰ, sul Ⅱ, tet B,tet C, and tet W） were selected for their distribution pattern analysis. The abundances of the selected ARGs were higher in the upstream（8.70 × 10^6 copies/ng DNA） and downstream areas（3.17 × 10^6 copies/ng DNA） than those in the midstream areas（1.23 × 10^6 copies/ng DNA）, which was positively correlated to the population density and number of pollution sources. Pollution sources of ARGs along the Beijiang River not only had a great impact on the abundances and diversity, but also on the distribution of specific ARGs in the water samples. Both sul Ⅰ and sul Ⅱ were likely originated from aquaculture farms and animal farms,tet W gene was possibly associated with the mining/metal melting industry and the electric waste disposal and tet C gene was commonly found in the area with multiple pollution ***, the abundance of tet B was not particularly related to anthropogenic impacts. These findings highlight the influence of pollution sources and density of population on the distribution and dissemination of ARGs at a regional scale.

关键词： Antibiotic resistance genes Anthropogenic activities Pollution sources River catchment

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Succession and seasonal variation in epilithic biofilms on artificial reefs in culture waters of the sea cucumber Apostichopus japonicus

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Chinese Journal of Oceanology and Limnology 2017年第1期35卷 132-152页

作者： LIU Liming DU Rongbin ZHANG Xiaoling DONG Shuanglin SUN shichun Key Laboratory of Mariculture Ministry of Education Ocean University of China Qingdao 266003 China Ocean School Yantai University Yantai 264005 China

Periphytic biofilms in aquaculture waters are thought to improve water quality, provide an additional food source, and improve the survival and growth of some reared animals. In the AsiaPacific region, particularly in China, artificial reefs are commonly used in the commercial farming of sea cucumbers. However, few studies have examined the epilithic biofilms on the artificial reefs. To gain a better understanding of the succession of epilithic biofilms and their ecological processes in sea cucumber culture waters, two experiments were conducted in culture waters of the sea cucumber Apostichopus japonicus in Rongcheng, China, using artificial test panels. On the test panels of succession experiment, more than 67 species were identified in the biofilms. On the test panels of seasonal variation experiment, more than 46 species were recorded in the biofilms. In both experiments, communities of epilithic biofilms were dominated by diatoms, green algae and the annelid Spirorbis sp. In the initial colonization, the dominant diatoms were Cocconeis sp., Amphora spp. and Nitzschia closterium in June, which were succeeded by species of Navicula, Cocconeis and Nitzschia(July to September), and then by Licmophora abbreviata, Nitzschia closterium and Synedra spp. in the following months. A diatom bloom in the autumn and filamentous green algae burst in the summer were also observed. Ecological indices well annotated the succession and seasonal changes in epilithic communities. Multidimensional scaling(MDS) analysis found significant differences in diatom community composition among months and seasons. Fast growth of biofilms was observed in the summer and autumn, whereas the biomass of summer biofilms was largely made up of filamentous green algae. Present results show that the components of epilithic biofilms are mostly optimal foods of A. japonicus, suggesting that biofilms on artificial reefs may contribute important nutritional sources for sea cucumbers during their growth s

关键词： artificial reef sea cucumber culture waters epilithic biofilm succession seasonal variation Apostichopus japonicus diatom

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Geomorphological site classification for the Fujian province

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Earthquake Science 2013年第1期26卷 49-54页

作者： Yao Ke shichun Zheng Zhao Huang Shanxiong Wang Jiafang Huang Earthquake Administration of Fujian Province College of Geographical Sciences Fujian Normal University

Geomorphological classification of the Fujian province was done based on remote-sensing imaging, digital elevation maps, and slope gradient data acquired by ArcGIS 9.2. The engineering geological units in the Fujian province were divided into five types by the geomorphologic shape and genesis. The relationship among geomorphological type, engineering geological unit, and site category was determined using engineering geological data and site category data. Then, after making a preliminary site classification adjusted by drill hole data, the site was classified into four types： Ⅰ0, Ⅰ1, Ⅱ, and Ⅲaccording to site classification standards of equivalent shear-wave velocity and overburden thickness. The results showed that the site categories in the Fujian province mainly consist of type Ⅱ, which accounts for 85.26 % of the land area. The percentage of Io was the smallest, which accounts for only 2.44 % of the total area.

关键词： Site classification Geomorphologicalclassification ·GIS ·Fujian province

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A review of anodic catalysts and their application in(non-)Kolbe electrocatalytic decarboxylation of carboxylic acids

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Carbon Resources Conversion 2023年第4期6卷 287-297页

作者： shichun Wang Dezhang Ren Yueying Du Mengjie Zhang Nahui Zhang Yaguang Sun Zhibao Huo College of Marine Ecology and Environment Shanghai Ocean University999 Huchenghuan RoadShanghai 201306China The Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province Shenyang University of Chemical TechnologyShenyang110142China Shanghai Engineering Research Center of River and Lake Biochain Construction and Resource Utilization Shanghai201702China

Biomass,as the exclusive and abundant organic resources,is considered to be the promising renewable *** acids are one of the many compounds that can be obtained from raw *** of carboxylic acids into fuels and chemicals via electrochemical method at mild reaction condition has been studied for many ***(non-)Kolbe reaction,one of the oldest organic electrochemical reactions,is the decarboxylation of carboxylic acids to produce alkanes,alcohols,esters,*** electrode materials influence the production of electrocatalytic decarboxylation products from carboxylic ***,this work mainly reviews the recent advances in applications of anodic materials for(non-)Kolbe electrocatalytic decarboxylation of carboxylic *** discusses the reaction mechanism of(non-)Kolbe electrolytic reaction,and the electrocatalytic oxidation of carboxylic acid using different electrodes and electrolytic systems to synthesize fuels and ***,various types of electrode catalysts,such as Pt-based catalysts,C-based catalysts,and other catalysts,are introduced in ***,the challenges and future trends of the(non-)Kolbe reaction of carboxylic acids are *** review found that platinum-based electrocatalysts proved to be the most promising catalysts at *** in recent years,a variety of synthesis methods have been developed to synthesize small size and high-performance noble metal based amorphous *** approach is to study catalysts without platinum electricity,such as Ru,Ir,Ti and carbon *** review is helpful in understanding and know the anodic materials and their application in(non-)Kolbe electrocatalytic decarboxylation of carboxylic acids for the readers.

关键词： Electrocatalytic decarboxylation Carboxylic acid (non-)Kolbe reaction Anode material Catalysis

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Regional Characteristics and Causes of Haze Events in Northeast China

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Chinese Geographical Science 2018年第5期28卷 836-850页

作者： CHEN Weiwei ZHANG shichun TONG Quansong ZHANG Xuelei ZHAO Hongmei MA Siqi XIU Aijun HE Yuexin Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of Sciences

Northeast China experiences severe atmospheric pollution, with an increasing occurrence of heavy haze episodes. However, the underlying forces driving haze formation during different seasons are poorly understood. In this study, we explored the spatio-temporal characteristics and causes of haze events in Northeast China by combining a range of data sources(i.e., ground monitoring, satellite-based products, and meteorological products). It was found that the ‘Shenyang-Changchun-Harbin(SCH)'city belt was the most polluted area in the region on an annual scale. The spatial distribution of air quality index(AQI) values had a clear seasonality, with the worst pollution occurring in winter, an approximately oval-shaped polluted area around western Jilin Province in spring, and the best air quality occurring in summer and most of the autumn. The three periods that typically experienced intense haze events were Period I from mid-October to mid-November(i.e., late autumn and early winter), Period II from late-December to February(i.e., the coldest time in winter), and Period III from April to mid-May(i.e., spring). During Period I, strong PM_(2.5) emissions from seasonal crop residue burning and coal burning for winter heating were the dominant reasons for the occurrence of extreme haze events(AQI > 300). Period II had frequent heavy haze events(200 < AQI < 300) in the coldest months of January and February, which were due to high PM_(2.5) emissions from coal burning and vehicle fuel consumption, a lower atmospheric boundary layer, and stagnant atmospheric conditions. Haze events in Period III, with high PM_(10) concentrations, were primarily caused by the regional transportation of windblown dust from degraded grassland in central Inner Mongolia and bare soil in western Jilin Province. Local agricultural tilling could also release PM_(10) and enhance the levels of windblown dust from tilled soil. Better control of coal burning, fuel consumption, and crop residue burning in

关键词： air quality PM10 PM2.5 dust agricultural activity coal burning fuel consumption

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青城山居士楼砖木混合结构抗震性能数值分析

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西南交通大学学报 2010年第2期45卷 179-184,190页

作者：余志祥赵世春吴昊西南交通大学土木工程学院四川成都610031

为研究宗教建筑震后加固改造技术,基于对改造施工中的青城山上清宫居士楼进行的实地调查,采用有限元法,考虑边界非线性的影响,建立了数值分析模型,在此基础上对其自振特性进行了分析,结果与规范公式基本一致.此外,基于瞬态动力分析方法... 详细信息

为研究宗教建筑震后加固改造技术,基于对改造施工中的青城山上清宫居士楼进行的实地调查,采用有限元法,考虑边界非线性的影响,建立了数值分析模型,在此基础上对其自振特性进行了分析,结果与规范公式基本一致.此外,基于瞬态动力分析方法,对改造前、后的结构变形、基底剪力和构件内力响应进行了分析.研究表明,柔性边界可以较好地协调砖木结构的受力变形,形成刚柔相济的结构体系,提高结构抗震能力.

关键词：古建筑汶川地震结构改造数值模拟抗震分析

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A new strategy to access Co/N co-doped carbon nanotubes as oxygen reduction reaction catalysts

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Chinese Chemical Letters 2021年第1期32卷 535-538页

作者： Bingshuai Liu Huang Zhou Huihui Jin Jiawei Zhu Zhe Wang Chenxi Hu Lvhan Liang shichun Mu Daping He State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070China

Carbon nanotubes(CNTs),as one-dimensional nanomaterials,show great potential in energy conversion and storage due to their efficient electrical conductivity and mass ***,the security risks,time-consuming and high cost of the preparation process hinder its further ***,we develop that a negative pressure rather than a following gas environment can promote the generation of cobalt and nitrogen co-doped CNTs(Co/N-CNTs) by using cobalt zeolitic imidazolate framework(ZIF-67) as a precursor,in which the negative pressure plays a key role in adjusting the size of cobalt nanoparticles and stimulating the rearragement of carbon atoms for forming ***,the obtained Co/N-CNTs,with high content of pyridinic nitrogen and abundant graphitized structure,exhibit superior catalytic activity for oxygen reduction reaction(ORR) with half-wave potential(E_(1/2)) of 0.85 V and durability in terms of the minimum current loss(2%) after the 30,000 s *** development provides a new pathway for large-scale and cost-effective preparation of metal-doped CNTs for various applications.

关键词： Negative pressure Cobalt zeolitic imidazolate framework Cobalt and nitrogen co-doped Carbon nanotubes Oxygen reduction reaction

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