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Design of lithium-ion battery management system for mine electric vehicle

IOP Conference Series: Earth and Environmental Science 2021年第1期680卷

作者： Kaifeng Huang Yong Wang Juqiang Feng National Engineering Technology Research Institute of Coal Mining Huainan China Engineering Technology Research Center of Rail Transit Power and Control Huainan Normal University Huainan China

With the continuous improvement on mine equipment automation level and the progress of battery manufacturing technology, Lithium-ion batteries are widely used in mining transportation, monitoring communication and emergency facilities. This paper designs a kind of lithium-ion battery management system for explosion-proof mining electric vehicle according to GB3836-20210 series standard. And the management system takes STM32F103 as the main controller and LTC6811 as the core, using passive equalization strategy to realize battery voltage equalization. The test results show that the maximum error of 100 batteries after equalization is 0.32v, the average error is 0.03v and the maximum error between the monitoring value and the measured value is 0.3v, the average error is 0.0019v, which prove that the management system has high accuracy and effectiveness.

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A synergistic study on dynamic regulation and energy efficiency of air source heat pump-capillary network radiant heating system based on human body adaptive regulation

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Applied Thermal engineering 2025年 278卷

作者： Hongwen Jin Zhaochao Tu Yue Zhao Zhenyang Zhang Huibo Li Jiong Zhang Ao Sun College of Energy and Power Engineering Changchun Institute of Technology Changchun 130103 China Jilin Province Building Energy Supply and Indoor Environment Control Engineering Research Center Changchun 130103 China Shanxi Vocational University of Engineering and Technology Taiyuan 030619 China China Construction First Engineering Group Installation Engineering Co. Ltd. Beijing 102600 China

The air source heat pump-capillary network radiant heating system has garnered significant interest in building heating; however, current research has yet to establish a systematic conclusion regarding the impact of the system’s water supply temperature on the indoor thermal environment and the optimal placement of the capillary network. This paper presents the thermal response data of the system at water supply temperatures ranging from 30 ℃ to 40 ℃, obtained through experimental tests; establishes a dynamic thermal comfort evaluation system utilizing thermodynamic theory; and conducts numerical simulations of two installation methods across seven water supply conditions from 26 ℃ to 38 ℃ (in 2 ℃ increments) using TRNSYS software. The findings indicate that employing top-plate heating and elevating the water supply temperature can reduce the system’s thermal response time; it quantifies the principle that each 1 ℃ rise in temperature results in a 6.29% increase in energy consumption; and it verifies that capillary network top-plate heating can attain an energy savings rate of 15.91% compared to four-wall heating while maintaining equivalent thermal comfort indices in the room. This study presents the inaugural construction of a TRNSYS simulation model that incorporates PMV-PPD dynamic thermal comfort assessment, overcoming the constraints of conventional static evaluation methods. By developing a quantitative relationship model between water supply temperature, thermal response time, and energy consumption, it establishes a novel theoretical framework for system regulation.

关键词： Air source heat pump Capillary network PMV PPD TRNSYS

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controlling Nucleophilic Emerging Organic Contaminants (Eocs) Using an Inorganic Oxidizing Coagulant (Ioc) Based on the Synergistic Oxidation-Induced Coagulation Mechanisms

SSRN

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SSRN 2024年

作者： Wang, Lili Xu, Weiying Xu, Zhenghe Zhu, Yuanji Song, Yan Wang, Dongsheng Xin, Xiaodong Jia, Ruibao Xu, Xing School of Water Conservancy and Environment University of Jinan No. 336 Nanxinzhuang Western Road Shandong Jinan250022 China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Science Chinese Academy of Science No. 18 Shuangqing Road Beijing100085 China Economic & Technology Research Institute of State Grid Shandong Electric Power Company No. 111 Weishi Road Shandong Jinan250021 China Shandong Province City Water Supply and Drainage Water Quality Monitoring Center No 5111 Aoti Middle Road Shandong Jinan250013 China Department of Environmental Engineering College of Environmental & Resource Sciences Zhejiang University No 866 Yuhangtang Road Zhejiang Hangzhou310013 China Shandong Key Laboratory of Water Pollution Control and Resource Reuse School of Environmental Science and Engineering Shandong University Shandong Qingdao266237 China Shandong Jianzhu University China

Coagulation is not effective in treatment of emerging organic contaminants (EOCs) contaminated water and wastewater, and many researches focus on the hybrid technologies. In this study, a multifunctional inorganic oxidizing coagulant (IOC) was developed by a simple alkaline co-polymerization method to increase the efficiency and feasibility of coagulation in elimination of low molecular weight (MW) organic compounds, which were demonstrated by eight kinds of representative EOCs. The IOC present exceptional removal capabilities for hydrophilic with low logKow and nucleophilic (high NI) EOCs, like sulfamethazine (SMZ), tetracycline (TC), and ciprofloxacin (CIP), achieving removal efficiencies of 45-95%. The dynamic coagulation investigation conducted through continuous monitor on floc formation and growth demonstrated that large floc played minor role in EOCs removal. Instead, an obvious positive correlation between removal efficiency (REOCs) and floc growth rate (Sfloc), which was associated with the reactivity of EOCs with coagulant, was observed. Combined with the electron paramagnetic resonance (EPR) and ultra-high-performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS) results, an innovative coagulation mechanism for EOCs abatement by IOC, namely oxidation-induced coagulation was proposed. Oxidizing agent in IOC promoted the formation of activate intermediates through nonradical pathway, which were more prone to complexation with aluminum than their original condition. Comparatively, traditional charge neutralization, adsorption and sweeping mechanisms involved in the aluminum sulfate (AS) and poly-aluminum chloride (PACl) coagulation systems, which generally lead to large but invalid flocs, turned out to inapplicable to EOCs removals. This study provides a novel strategy and inorganic coagulant for EOCs-contained water and wastewater treatments based on the oxidation-induced complexation mechanism, which was demonstrated to be a promisin

关键词： Aluminum chloride

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Impact of large scale wind power with DFIG on small signal stability of the system

Impact of large scale wind power with DFIG on small signal s...

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2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

作者： Xu, Xiaoyi Chen, Ning Qian, Shuangqiu Han, Hualing Zhao, Dawei Nantong Power Supply Company of State Grid Jiangsu Electric Power Company Nantong China State Key Laboratory of Operation and Control of Renewable Energy Storage Systems China Electric Power Research Institute Nanjing China Jiangsu Engineering Technology Research Center for Energy Storage Conversion and Application China Electric Power Research Institute Nanjing China

ISBN: (纸本)9781728135205

Future energy demand and increasing carbon emission requires an alternative source of energy. In recent few years, Use of DFIG based wind farm increased tremendously, thus effect of wind penetration on small signal stability of existing multi machine system need to be analyzed. In This paper effect of penetration of wind turbine with DFIG on stability performance of the IEEE 9 bus and 39 bus system has been investigated using DIgSILENT powerfactory. It was observed that system with large number of buses is more stable with DFIG penetration then a small system. © 2019 IEEE.

关键词： Asynchronous generators

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Vulnerability Analysis of Cyber-physical System Based on Improved Structural Entropy

Vulnerability Analysis of Cyber-physical System Based on Imp...

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IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Long Li Zhenwen Li Ying Liu Zhenfeng Xiao Ye Cai Fang Liu Dispatch Control Center State Grid Corporation Hunan Electric Power Company Changsha China School of Electrical and Information Engineering Changsha University of Science and Technology Changsha China Hunan Key Laboratory of Energy Internet Supply-demand and Operation Hunan Electric Power Company Limited Economic & Technical Research Institute Changsha China

ISBN: (数字)9781728196060

ISBN: (纸本)9781728196077

With the continuous integration of the power grid and the information network, the vulnerability analysis of cyber-physical system considering the interaction between networks become more important. Based on the complex network theory, a topology model of power cyber-physical network is established, and improved structural entropy is proposed, which considering node differences, edge differences, and node dependency differences. Taking the Hunan Electric power Cyber-Physical System as an example, the simulation results show that the improved structural entropy can identify important nodes in the power grid. the dependent network is more vulnerable than a single network, nodes with high-degree and high-betweenness play a key role in maintaining the operation of the system, and the robustness of system will also be reduced when a few nodes with low-degree and low-betweenness fail.

关键词： Simulation System integration Cyber-physical systems Entropy power grids Robustness Topology

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Substation Secondary Cable Path Optimization Design Based on 3D Simulation and Improved Dijkstra Algorithm

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Journal of Physics: Conference Series 2021年第1期2136卷

作者： Shengqing Li Yi Zhang Zhiyong Ling Xiaobing Zhang School of Electrical and Information Engineering Hunan University of Technology Zhuzhou 412007 China Hunan Engineering Research Center for Intelligent Control Technology of Photovoltaic Microgrid Zhuzhou 412007 China State Grid ZhuZhou Power Supply Company Zhuzhou 412000 China.

In order to accurately predict the length of secondary cable laying in substation construction project and avoid the problem of resource waste in engineering construction, a secondary cable path optimization model based on 3D simulation and Dijkstra algorithm was established. Firstly, through the application of Bentley software, the three-dimensional model of substation is established, and the workflow of BRCM cable laying software is introduced. Secondly, the common and the improved Dijkstra algorithm are used to carry out the path planning on the raster map respectively, and the experimental simulation is carried out. Finally, the simulation results show that the path length of the improved algorithm is 24.32% and 28.66% less than that of the traditional Dijkstra. It is 12.34% less than that of the ant colony algorithm, which provides some useful theoretical references for the secondary cable laying in the future substations.

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Preface

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Journal of Physics: Conference Series 2024年第1期2703卷 011001页

作者： Li, Licheng Zhou, Xiaoxin Liu, Huanbin Cai, Wei Min, Yonggang Chen, Jianping Zhu, Jizhong Cheng, Weidong Qi, Feng Mohammadi-Ivatloo, Behnam Kolhe, Mohan Lal He, Ping Yuan, Xufeng Sebaa, Karim Xu, Changbao Wang, Mian Yao, Gang Wu, Xiaokun Padmanaban, Sanjeevikumar Bentarzi, Hamid Wu, Nan Zeng, Jiang Du, Zhaobin Wang, Xiaojing Zhou, Hui Guo, Shaoyong Dhillon, Sukhwinder Singh Minai, Ahmad Faiz Ahmad, Abu Zaharin Bin Said, Zafar Raja Sekhar, Y. Matai, Khushal Yazdi, Mohammad Hossein Patel, Vikas Veluswamy, Pandiyarasan Chauhdary, Sohaib Tahir Khan, Mohammed Zaid Yang, Benqiang Huang, Ridai Li, Jiaming Chen, Xinling Li, Lin Zeng, Fei Yi, Yang Tan, Yingjie Yi, Wenfei Gao, Ze Ouhsaine, Lahoucine Mechighel, Farid Neethi Manickam, I. Khoshvaght-Aliabadi, Morteza Fattah, Islam Md Rizwanul Jradi, Muhyiddine Gatla, Ranjith kumar Jamil, Mohsin Amini, Ghazaleh Kulkarni, Vikram Joshi, Puneet Tra, Tien Anh Oubelaid, Adel Admasie, Samuel Chinese Academy of Engineering China South China University of Technology China Chinese Academy of Sciences China Russian Academy of Engineering Russia Harbin University of Science and Technology China Guangdong University of Technology China Suzhou University of Science and Technology China Beijing Jiaotong University China Beijing University of Posts and Telecommunications China University of Tabriz Iran Norway Jinan University China Guizhou University China Université de Médéa Algeria Electric Power Research Institute of Guizhou Power Grid Co. Ltd. China Power Dispatching Control Center of Guizhou Power Grid Co. Ltd. China University of South-Eastern Norway Norway University of M'hamed Bougara Boumerdes Algeria Guizhou Normal University China Chongqing University China Ajay Kumar Garg Engineering College India Integral University India University Malaysia Pahang Malaysia University of Sharjah United Arab Emirates Vellore Institute of Technology India School of Planning and Architecture India Neyshabur Branch Iran Rajkiya Engineering College India Kancheepuram India COMSATS University Islamabad Pakistan Rajasthan Technical University India Guangdong Architectural Design and Research Institute Co. Ltd. China Guangdong Power Grid Co. Ltd. China Power Dispatching Control Center of Guangxi Power Grid Co. Ltd. China State Grid Hunan Province Electric Power Company Changsha Power Supply Company China Research Institute of State Grid Jiangsu Electric Power Co. Ltd. China Huawei Technologies Co. Ltd. China Research Institute of China Southern Power Grid Co. Ltd. China Research Institute of State Grid Henan Electric Power Co. Ltd. China Lorraine University France Badji Mokhtar Annaba University Algeria Francis Xavier Engineering College India Islamic Azad University Iran Casual Academic | School Australia University of Southern Denmark Denmark Institute of Aeronautical Engineering India Memorial University of Newfoundland Canada Mazandaran University of Science

In recent years, many delegates turned their attention to the fields of energy and power and put forward a series of constructive suggestions and recommendations on promoting the healthy development of the new energy generation industry and the green and low-carbon development of power, for example, “Building a new power system with new energy as the main body is an important task in the process of hitting carbon peak and attaining carbon neutrality, and new energy power generation will become the main force of future power supply.”In order to bring in the latest progress in theory, technology and application in the fields of energy and power at home and abroad in recent years, and show the latest research achievements, 2023 5th International Conference on Energy, power and Grid (ICEPG 2023) was held in Guangzhou, China from September 22nd to 24th, 2023. It was attended by about 200 participants *** Conference presented an outstanding program of papers covering the most recent advances in energy and power, including Nuclear engineering and Hydrogen Energy Resources, power System Protection, Operation and control, power Quality and Electromagnetic Compatibility, Integrated Optics and Electro-Optical Devices, etc. The papers in this Proceedings published by Journal of Physics: Conference Series (JPCS) represent a collection of the invited speeches and other *** this meeting we had a comprehensive overview of this fascinating field and of future scenarios thanks to the participation of distinguished delegates around the globe. The Conference was presided by Dr. Ziyu Chen from South China University of technology, China. Professor Jizhong Zhu (South China University of technology, China), the Conference Chair, first delivered an opening speech and then a keynote speech on Digital power Grid technology and Applications. What’s more, Prof. Wenjie Feng (South China University of technology, China) performed a speech on Recent Progress of Millimeter-w

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A Method of Conflict Detection for Cooperative Defense Strategy in power Industrial control System

A Method of Conflict Detection for Cooperative Defense Strat...

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International Conference on Advanced Cloud and Big Data (CBD)

作者： Hongqin Zhu Zi Wang Wei Li Dawei Su Jiawei Sun Muye Li Power Dispatching Control Center State Grid Nanjing Power Supply Company Nanjing P.R. China Nanjing NARI Information & Communication Technology Co. Ltd. NARI Group Co. Ltd./State Grid Electric Power Research Institute Co. Ltd. Nanjing P.R. China School of Computer Science and Engineering Southeast University Nanjing P.R. China Power Dispatching Control Center State Grid Jiangsu Electric Power Co. Ltd. Nanjing P.R. China

With the increasingly rampancy of network attacks and the steady progress of the national smart grid construction, the security protection of the power industrial control system is facing severe challenges. It is an effective means to improve the overall defense capability of the power industrial control system by formulating the security collaborative defense strategy and dynamically configuring the relevant equipment to make them have linkage response. For this purpose, a method of conflict detection for cooperative defense strategy in power industrial control system is proposed in this paper. Based on the formal description of cooperative defense strategy, the type of policy conflicts is analyzed according to the relationship between policy actions and system states. And the policy execution is simulated for detecting conflict by establishing the temporal relationship between policy actions. The experimental results show that this method can reduce the dependence on the system administrator, and can quickly and accurately find the conflicts in the collaborative defense strategy.

关键词： Couplings Industrial control Collaboration Big Data Smart grids Security

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On-line Monitoring of Batch Process Using Multi-phase Based Dynamic Model

On-line Monitoring of Batch Process Using Multi-phase Based ...

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第三十八届中国控制会议

作者： Xuejin Gao Mengdan Huang Pu Wang Xin Liu Yongsheng Qi Huihui Gao Beijing University of Technology Faculty of Information Technology Engineering Research Center of Digital Community (Ministry of Education) Beijing Laboratory of Urban Rail Transit and Beijing Laboratory of Computational Intelligence System Tianjin Fire Research Institution of Ministry of Public Security College of Electric Power Inner Mongolia University of Technology

Multiphase characteristics and auto-and-cross correlation between process variables are two critical issues to be addressed for fermentation process monitoring. A method namely multi-phases dynamic PCA is proposed to investigate these two non-negligible issues. We introduced Affinity Propagation(AP) clustering to solve the problem of unequal length in batch process, and to optimize the clustering number of AP method, Silhouette index is applied. After phase division, autoregressivePCA(AR-PCA) model is structured to remove auto and cross correlation in each phase. Model order is determined using Akanke information criterion(AIC) and the model parameters are estimated by PLS method. Additionally, to improve the fault detection effectiveness, normal historical data is introduced to structure AR-PCA model when monitoring the new batch. The experiment result of penicillin cultivation process indicates the feasibility and effectiveness of the proposed method.

关键词： Batch process Multivariate autoregressive model principal component analysis Silhouette index Partial Least Squares

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Sustainable production of C6 phenols from lignin via sequential C[sbnd]O and C[sbnd]C bond cleavage over Ni-MgO/hydroxyapatite catalyst

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Chemical engineering Journal 2025年 518卷

作者： Yu, Shitong Ge, Zhitong Huang, Haowei Steele, Julian A. Kemausuor, Francis Hafez, Emad M. Tursunov, Obid Luo, Zhicheng MOE Key Laboratory of Energy Thermal Conversion & Control School of Energy and Environment Southeast University Nanjing 210096 China Australian Institute for Bioengineering and Nanotechnology University of Queensland Brisbane 4072 QLD Australia School of Mathematics and Physics University of Queensland Brisbane 4072 QLD Australia Department of Agricultural and Biosystems Engineering Kwame Nkrumah University of Science and Technology Kumasi Ghana The Brew-Hammond Energy Center Kwame Nkrumah University of Science and Technology Kumasi Ghana Department of Agronomy Faculty of Agriculture Kafrelsheikh University Kafr El-Sheikh 33516 Egypt Department of Power Supply and Renewable Energy Sources National Research University TIIAME 39 Kari Niyazov Tashkent 100000 Uzbekistan

Lignin, the only renewable source of aromatic compounds, remains underutilized due to its structural complexity. Self-supplied hydrogenolysis (SSH), which leverages endogenous hydroxyl groups as hydrogen donors, has emerged as a promising strategy for lignin valorization. However, conventional SSH predominantly yields C8/C9 alkylphenols rather than the more valuable C6 phenols due to rapid catalyst-driven hydrodeoxygenation. Here, we report a carbonyl-stabilization strategy using a non-noble Ni–MgO/hydroxyapatite (HAP) catalyst that enables sequential cleavage of Cβ-O and C1-Cα bonds, achieving 74.4 % selectivity for C6 phenolic monomers. Mechanistic studies reveal that basic sites on MgO/HAP facilitate oxygen adsorption at Cα sites, promoting Ni-catalyzed CαH–OH dehydrogenation to Cα = O groups, which lowers the dissociation energy of Cβ–O bonds, enabling efficient cleavage. Furthermore, the limited hydrodeoxygenation activity of Ni–MgO/HAP stabilizes C8/C9 carbonyl intermediates, allowing C1-Cα bond scission via high-temperature hydrogen-driven carbocation formation. This strategy represents a paradigm shift in lignin depolymerization, offering a direct, hydrogen-efficient route to C6-based platform chemicals. By maximizing lignin-derived product value while reducing reliance on external hydrogen, this work advances sustainable biomass conversion and green chemical manufacturing.

关键词： C6 phenols C1-Cα bonds cleavage Carbonyl-stabilization strategy Lignin Ni-MgO/HAP catalyst

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