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基于物联网的新能源汽车充电桩控制系统设计研究

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智能建筑与智慧城市 2023年第8期 151-153页

作者：谈耿赵雄峰丁福军翟明远吴学梅甘肃易享行新能源发展有限公司

文章首先介绍了新能源汽车充电桩控制系统的设计原理,并在此基础上建设了新能源汽车充电桩控制系统的设计与应用,其中包括汽车充电桩线路控制、汽车充电桩检测控制、汽车充电桩程序控制、汽车充电桩安全控制、汽车充电桩控制系统硬件设... 详细信息

文章首先介绍了新能源汽车充电桩控制系统的设计原理,并在此基础上建设了新能源汽车充电桩控制系统的设计与应用,其中包括汽车充电桩线路控制、汽车充电桩检测控制、汽车充电桩程序控制、汽车充电桩安全控制、汽车充电桩控制系统硬件设计等方面,旨在为今后技术人员研发新能源汽车充电桩控制系统提供经验借鉴。

关键词：新能源汽车充电桩控制系统

基于改进差分进化和粒子群混合算法的电力系统最优潮流计算

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广东工业大学学报 2017年第5期34卷 22-28页

作者：陈璟华邱明晋唐俊杰田明正谭耿锐广东工业大学自动化学院广东广州510006

针对电力系统最优潮流典型的非线性多峰值的非凸规划问题,提出一种将差分进化与粒子群优化算法结合在一起的混合优化算法.采用双种群进化策略,分别利用粒子群优化算法和差分进化算法进行寻优迭代,通过信息分享机制,使两个种群在寻优过... 详细信息

针对电力系统最优潮流典型的非线性多峰值的非凸规划问题,提出一种将差分进化与粒子群优化算法结合在一起的混合优化算法.采用双种群进化策略,分别利用粒子群优化算法和差分进化算法进行寻优迭代,通过信息分享机制,使两个种群在寻优过程中协同进化.提出一种老化机制和精英改选机制,根据最优粒子的引导能力动态改变其寿命.在其引导能力不足时,采用一种多项式变异策略引入一个竞争个体与最优粒子竞争,使算法全局寻优能力得到加强.IEEE30节点系统仿真结果表明,算法收敛速度快、精度高,具有一定的有效性和可行性.

关键词：差分进化算法粒子群优化算法最优潮流混合算法

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组合缓冲约束下的多目标混合流水线节能调度

郑州大学学报（工学版） 2025年第1期46卷 17-25页

作者：轩华耿祝新李冰郑州大学管理学院河南郑州450001

为解决生产阶段间带有无限缓冲和阻塞两种中间缓冲约束的混合流水线节能调度问题,考虑不相关并行机和多时间约束建立数学模型,结合问题特征提出一种改进多目标模因算法以同时最小化最大完工时间和机器总能耗。采用基于不相关机器分配的... 详细信息

为解决生产阶段间带有无限缓冲和阻塞两种中间缓冲约束的混合流水线节能调度问题,考虑不相关并行机和多时间约束建立数学模型,结合问题特征提出一种改进多目标模因算法以同时最小化最大完工时间和机器总能耗。采用基于不相关机器分配的矩阵编码方案,利用基于Tent混沌映射的混合初始化策略生成初始元胞数组,全局优化算子应用基于参数的自适应遗传策略改进的非支配排序遗传算法,局部增强搜索算子应用一种融合自适应选择邻域搜索和多目标模拟退火的搜索策略以提高算法搜索能力。通过24种不同规模问题的算例实验,验证了所提算法求解该问题的有效性和优越性。实验结果表明:改进多目标模因算法在平均运行时间241.26 s内得到的平均IGD值为47.89,平均SP值为857.25,均低于其他3种对比算法。改进多目标模因算法所求解集具有较好的收敛性、多样性和分布性。

关键词：混合流水线改进多目标模因算法组合缓冲约束不相关并行机多目标优化节能调度

采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究

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西安交通大学学报 2025年第1期59卷 172-182页

作者：李季风耿宇宇贾晋廖兴林路青洋重庆理工大学电气与电子工程学院重庆400054 重庆理工大学汽车零部件先进制造技术教育部重点实验室重庆400054

针对电动汽车车载充电机的设计过程中普遍存在的电磁干扰频率范围广、干扰源复杂的问题,提出了一种基于端口阻抗测试的等效电路建模和系统级协同仿真方法。首先,通过对车载充电机系统各部件进行阻抗测试和三维电磁仿真,建立了无源器件... 详细信息

针对电动汽车车载充电机的设计过程中普遍存在的电磁干扰频率范围广、干扰源复杂的问题,提出了一种基于端口阻抗测试的等效电路建模和系统级协同仿真方法。首先,通过对车载充电机系统各部件进行阻抗测试和三维电磁仿真,建立了无源器件、端口滤波器和高压屏蔽线缆模型,提取了系统印制电路板关键回路的高频寄生参数。其次,建立了有源器件的仿真电路模拟器等效模型,并通过双脉冲实验验证模型的精度;针对功率因数校正电路控制环节的仿真与建模难以同步实现的问题,采用协同建模的方法构建整个系统的等效电路模型。最后,将各部件模型组合在一起,建立了完整的车载充电机系统传导电磁干扰预测模型,并依据相关测试标准进行了系统传导电磁干扰仿真和实验。结果表明:在150 kHz~30 MHz频率范围内,预测结果与实际结果的误差小于9 dB,具有良好的一致性,表明该模型能够精确预测车载充电机系统高压交流端的传导干扰水平,可以有效指导充电机系统的电磁兼容正向设计。

关键词：车载充电机电磁干扰端口阻抗测试协同仿真

侧脑室注射μ-阿片受体反义寡聚核苷酸对小鼠甲基苯丙胺行为敏化反应的影响

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实验动物与比较医学 2007年第3期27卷 155-159页

作者：沈新娥王国卿周希平邹容马谭庚苏州大学医学院基础医学系生理学教研室苏州215123 密西西比大学医学研究中心药理与毒理学研究室美国密西西比39216

目的探讨μ-阿片受体(μ-opioid receptor,MOR)在小鼠甲基苯丙胺行为敏化中的作用。方法人工合成反义及错配反义MOR基因片断,通过对小鼠自主活动行为的检测,观测侧脑室注射MOR反义寡聚核苷酸(Antisense oligodeoxynucleotide,ASODN)对... 详细信息

目的探讨μ-阿片受体(μ-opioid receptor,MOR)在小鼠甲基苯丙胺行为敏化中的作用。方法人工合成反义及错配反义MOR基因片断,通过对小鼠自主活动行为的检测,观测侧脑室注射MOR反义寡聚核苷酸(Antisense oligodeoxynucleotide,ASODN)对急性甲基苯丙胺活动增强效应及慢性甲基苯丙胺诱导的小鼠行为敏化形成的影响。结果MOR ASODN可显著降低甲基苯丙胺的急性高活动效应,并可阻断甲基苯丙胺诱导小鼠行为敏化的形成。结论MOR ASODN对中枢神经系统功能具有抑制作用,可抑制甲基苯丙胺诱导小鼠行为敏化的形成过程,提示MOR介导对甲基苯丙胺的成瘾行为的调控作用。

关键词： μ-阿片受体反义寡聚核苷酸甲基苯丙胺行为敏化

Hexabromocyclododecane and tetrabromobisphenol A in sediments and paddy soils from Liaohe River Basin, China： Levels, distribution and mass inventory

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Journal of Environmental Sciences 2016年第10期28卷 209-217页

作者： Fang Li Jing Jin Dongqin tan Longxing Wang Ningbo geng Rong Cao Yuan Gao Jiping Chen Key Laboratory of Separation Science for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesNo.457 Zhongshan RoadDalian 116023China University of Chinese Academy of Sciences Beijing 100049China

Hexabromocyclododecane （HBCD） and tetrabromobisphenol A （TBBPA） are two kinds of brominated flame retardants and widely present in the environment and biota. The levels, spatial distributions and mass inventories of HBCD and TBBPA were investigated in sediments and paddy soils from the Liaohe River Basin in northeast China. The concentrations of ∑HBCD and TBBPA were in the range of not detected （nd） to 4.02 ng/g dry weight （dw） and 0.03 to 4.06 ng/g dw, respectively, y-HBCD was dominated in sediments, while the abundance of a-HBCD was relatively high in paddy soils. The spatial distributions of HBCD and TBBPA in surface sediments and paddy soils indicated that the local point-input was their major source. The significant correlation between total organic carbon （TOC） contents and the HBCD levels suggested that TOC content also exerted an influence on the distribution of HBCD in sediments. Meanwhile, it was found that the irrigation with fiver water was not the major transportation pathway of HBCD and TBBPA in paddy soils. Based on the study, it was estimated that there were about 1.67 tons HBCD and 2.20 tons TBBPA deposited into sediments of the Liaohe River system every year. The total mass inventories of HBCD and TBBPA in sediments were far higher than that in paddy soils.

关键词： Hexabromocyclododecane Tetrabromobisphenol ALevelDistributionMass inventoryLiaohe River Basin

Dual precipitate simultaneous enhancement of tensile and fatigue strength in(FeCoNi)_(86)Al_(7)Ti_(7) high-entropy alloy fabricated using selective laser melting

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Journal of Materials Science & Technology 2023年第17期148卷 90-104页

作者： Long Xu Yandong Jia Zhenhui Wang Shiwei Wu Yuefei Jia Chuan geng Jianchao Peng Xiaohua tan Gang Wang Institute of Materials Shanghai UniversityShanghai 200444China Zhejiang Institute of Advanced Materials Shanghai UniversityJiashan 314100China Department of Mechanical Engineering National University of Singapore9 Engineering Drive 1Singapore 117575Singapore Laboratory for Microstructures Shanghai UniversityShanghai 200444China

Recent studies have indicated that precipitation-strengthened high-entropy alloys(HEAs)show superior mechanical performance and have been successfully fabricated by additive ***,the lack of fatigue and fracture research has limited the engineering applications of additive manufacturing *** work explored a dual precipitation-strengthened(FeCoNi)_(86)Al_(7)Ti_(7) HEA with excellent tensile and fatigue strength,prepared through selective laser melting and heat *** with the as-built samples,the tensile properties and fatigue endurance limit improved through aging by 48.7%and 30%,*** strengthening mechanism and enhanced fatigue performance were clarified in *** improvement in fatigue strength was attributed to the improved resistance of the L1_(2) and L2_(1) *** deformation,the dislocation shear coherent L1_(2) precipitates reduced slip band energy and inhibited slip band expansion,while the L2_(1) particles acted as obstructions for further slip band propagation,severely limiting the rapid formation and propagation of crack ***-situ TEM cyclic tensile-tensile testing also clarified the fatigue crack growth behavior,demonstrating that crack deflection due to L2_(1) precipitate obstruction slowed down the crack growth rate and efficiently promoted the closure of the microcrack *** work offers im plications for a new strategy to develop additive manufacturing HEAs.

关键词： High-entropy alloy Selective laser melting Precipitation strengthening Fatigue Crack deflection

Origin of the Gas Hydrate and Free Gas in the Qilian Permafrost,Northwest China:Evidence from Molecular Composition and Carbon Isotopes

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 602-616页

作者： tan Furong LI Yang DU Fangpeng LIU Shiming CUI Weixiong LIU Zhiwu geng Qingming LU Ping State Key Laboratoiy of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China State Key Laboratory of Organic Geochemistty Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China China National Administration of Coal Geology Beijing 10038China Shaanxi Mineral Resources and Geological Survey Xi'an 71006SChina Xi'an Research Institute of China Coal Technology&Engineering Group Corp. Xi'an 710077China College of Earth Science and Resources Chang'an UniversityXi'an 710054China

The Qilian permafrost of the South Qilian Basin(SQB)has become a research focus since gas hydrates were discovered in *** many works from different perspectives have been conducted in this area,the origin of gas from gas hydrate is still *** composition and carbon isotope of 190 samples related to gas hydrates collected from 11 boreholes allowed exploration of genetic type,thermal maturity,biodegradation,as well as gas-source correlation of alkane gases from gas hydrates and free *** indicate that alkane gases biodegraded after the formation of natural *** to differences in carbon isotopes of methane and their congeners(CH4,C2H6,C3H8),the thermal maturity(vitrinite reflectance,VRo)of most alkane gases ranges from 0.6%to 1.5%,indicating a mature to high mature *** thermal maturity VRo of a small part of alkane gas(in boreholes DK5 and DK6)is higher than 1.3%,indicating a high mature *** gases were mainly produced by secondary cracking,consisting of crude oilcracking gases and wet gases cracking to dry *** types of alkane gases are primarily oil-type gases generated from shales and mudstones in the upper Yaojie Formation of Jurassic,with less coal-type gases originated from the mudstones in the Triassic Galedesi Formation and the lower Yaojie Formation of *** dioxides associated with alkanes from gas hydrates and free gases indicate the thermal decomposition and biodegradation of organic *** origins of natural gases from gas hydrates and free gases shed light on the evaluation of petroleum resource potential,deeply buried sediments,and petroleum resource exploration in the SQB.

关键词： uunconventional energy gas hydrate carbon isotope alkane gas origin thermal maturity South Qilian Basin

RANDOM CONTINUOUS MODEL OF SCALE-FREE NETWORKS

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Journal of Systems Science & Complexity 2011年第2期24卷 218-224页

作者： Xianmin geng College of Science Nanjing University of Aeronautics and Astronautics Nanjing 210016 China.

There are a lot of continuous evolving networks in real world, such as Internet, WWW network, etc. The evolving operation of these networks are not an equating interval of time by chance. In this paper, the author proposes a new mathematical model for the mechanism of continuous single preferential attachment on the scale free networks, and counts the distribution of degree using stochastic analysis. Namely, the author has established the random continuous model of the network evolution of which counting process determines the operating number, and has proved that this system self-organizes into scale-free structures with scaling exponent γ=3＋a/m.

关键词： Counting processes degree distribution scaling exponent scale-free networks.