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基于FFRLS和ASR-UKF滤波算法的锂电池SOC估计

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电源技术 2024年第2期48卷 299-305页

作者：邓丹刘胜永王顺利刘鹏辉胡聪广西科技大学自动化学院广西柳州545006 西南科技大学信息工程学院四川绵阳621010 桂林电子科技大学广西自动检测技术与仪器重点实验室广西桂林541004

锂电池在工作过程中,其内部参数易受多种因素影响,为提高锂电池在复杂环境下荷电状态(SOC)估计精度,以二阶戴维宁(Thevenin)等效模型为基础,结合遗忘因子递推最小二乘法(FFRLS)对模型参数进行在线辨识。针对传统卡尔曼滤波算法高度非线... 详细信息

锂电池在工作过程中,其内部参数易受多种因素影响,为提高锂电池在复杂环境下荷电状态(SOC)估计精度,以二阶戴维宁(Thevenin)等效模型为基础,结合遗忘因子递推最小二乘法(FFRLS)对模型参数进行在线辨识。针对传统卡尔曼滤波算法高度非线性及系统噪声不确定性等缺点,提出了一种自适应平方根无迹卡尔曼滤波(ASR-UKF)算法,该算法利用平方根算法处理均值和协方差,确保了状态协方差的半正定性和稳定性,并引入自适应滤波算法对噪声进行实时修正,消除了系统时变噪声影响。结果表明,FFRLS能有效解决数据饱和及算法矩阵计算量大的问题,等效模型精度高达98%。在混合动力脉冲特性(HPPC)测试和北京公交动态测试工况(BBDST)下,ASR-UKF算法SOC估计最大误差分别为3.264%和0.572%,具备更好的跟踪效果,验证了改进算法良好的收敛性与自适应性。

关键词：荷电状态二阶Thevenin模型遗忘因子递推最小二乘法自适应平方根无迹卡尔曼滤波算法

Genetic diversity and relatedness analysis of nine wild species of tree peony based on simple sequence repeats markers

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Horticultural Plant Journal 2021年第6期7卷 579-588页

作者： Yuqian Xue Rong Liu Jingqi Xue shunli wang Xiuxin Zhang Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBeijing 100081China Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Ministry of Agriculture and Rural AffairsBeijing 100081China

Tree peony has nine wild species,but the evolutionary relationship of them is still ***,a total of 274 specimens from 22 natural populations of nine wild species were collected,and their genetic diversity and similarity was analyzed based on Simple Sequence Repeats(SSR)molecular markers.A total of 106 alleles were generated based on 20 primers and with an average of 5.3 alleles per ***’s information index(I)ranged from 0.6333 to 1.7842,and the average of Nei’s genetic diversity coefficient(H)was *** Information Content(PIC)value varied from 0.29 to 0.77,ten of these primers had high polymorphism(PIC≥0.50).All the above genetic parameters of primers reflect more rich genetic diversity information compared with other researches using SSR molecular markers to study the genetic diversity of tree peony wild *** the population level,the lowest and highest degree of genetic diversity occurred in Paeonia ludlowii-P1 and ***-P3 population,*** at species level,the genetic diversity of 9 wild peony species was as follows:***>***>***>***>***>***>***>***>***,cluster analysis at species level divided the nine wild tree peony species into two *** branch I,the closest phylogenetic relationship was found between *** and ***,followed by ***,***,and *** branch II,the closest relationship occurred between *** and ***,followed by *** and *** results supported the division of tree peonies into two subsects(Delavayanae and Vaginatae),it also supported *** and *** as independent *** results provided novel insight into the genetic diversity and phylogenetic relationship of nine wild tree peony *** will help formulate comprehensive protection measures of wild germplasm resources and select proper parents for distant hybridization in the future.

关键词： Tree peony Molecular marker Genetic diversity Phylogenetic relationship

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交通运输实验中心建设与实践

中国现代教育装备 2024年第5期 40-42页

作者：王利华郭峤枫王顺利西南交通大学交通运输与物流学院四川成都610031

依托西南交通大学“323工程”和交通运输与物流学院特色专业优势,以培养学生工程实践和创新能力为目标,建成了“大交通”特色鲜明、轨道交通优势突出的交通运输实验中心。经过几年的建设与实践,实验中心在人才培养、师资队伍建设、课程... 详细信息

依托西南交通大学“323工程”和交通运输与物流学院特色专业优势,以培养学生工程实践和创新能力为目标,建成了“大交通”特色鲜明、轨道交通优势突出的交通运输实验中心。经过几年的建设与实践,实验中心在人才培养、师资队伍建设、课程建设、教学改革研究方面取得显著成效,具有较好的示范和辐射作用。

关键词：交通运输实验中心建设与实践

高能N等离子源辅助GaN薄膜生长及其物性研究

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光电子·激光 2024年第9期35卷 987-992页

作者：胡海争贺怀乐赖黎王顺利吴超郭道友浙江理工大学理学院

氮化镓（GaN）具有宽带隙、高量子效率、优异的热稳定和抗辐射等特性，在高频、高功率电子及紫外光电器件中有着重要的作用。在本工作中，采用经济、环保的等离子增强化学气相沉积（plasma-enhanced chemical vapor deposition, PECVD... 详细信息

氮化镓（GaN）具有宽带隙、高量子效率、优异的热稳定和抗辐射等特性，在高频、高功率电子及紫外光电器件中有着重要的作用。在本工作中，采用经济、环保的等离子增强化学气相沉积（plasma-enhanced chemical vapor deposition, PECVD）方法，通过使用高能N等离子体作为N源，在较低温度（850℃）下成功制备了高结晶质量的GaN薄膜，并研究了N2流量对薄膜结晶质量、生长速率和光学性能的影响。结果表明，随着N2流量的增加，反应原子的动能提高，薄膜生长速度和结晶质量得以提升。但随着N2流量进一步增加，过高的成核率会导致衬底吸附的原子无法迁移到适当的位置，薄膜沿着不同的方向上随机生长，晶体质量下降。本文制备的GaN薄膜的载流子浓度达到2.19×1018cm-3,迁移率达到5.17cm2·V-1·s-1,在光电子器件中展现出较强的应用潜力。

关键词：等离子增强化学气相沉积(PECVD) GaN薄膜低温沉积 N等离子体

Multi-time scale identification of key kinetic processes for lithium-ion batteries considering variable characteristic frequency

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Journal of Energy Chemistry 2023年第7期82卷 521-536,I0011页

作者： Haotian Shi shunli wang Jianhong Liang Paul Takyi-Aninakwa Xiao Yang Carlos Fernandez Liping wang School of Information Engineering Southwest University of Science and TechnologyMianyang 621010SichuanChina Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China School of Pharmacy and Life Sciences Robert Gordon UniversityAberdeen AB10-7GJUK

The electrification of vehicles puts forward higher requirements for the power management efficiency of integrated battery management systems as the primary or sole energy *** this paper,an efficient adaptive multi-time scale identification strategy is proposed to achieve high-fidelity modeling of complex kinetic processes inside the *** specifically,a second-order equivalent circuit model network considering variable characteristic frequency is constructed based on the high-frequency,medium-high-frequency,and low-frequency characteristics of the key kinetic ***,two coupled sub-filters are developed based on forgetting factor recursive least squares and extended Kalman filtering methods and decoupled by the corresponding time-scale *** coupled iterative calculation of the two sub-filter modules at different time scales is realized by the voltage response of the kinetic diffusion *** addition,the driver of the low-frequency subalgorithm with the state of charge variation amount as the kernel is designed to realize the adaptive identification of the kinetic diffusion process ***,the concept of dynamical parameter entropy is introduced and advocated to verify the physical meaning of the kinetic *** experimental results under three operating conditions show that the mean absolute error and root-mean-square error metrics of the proposed strategy for voltage tracking can be limited to 13 and 16 mV,***,from the entropy calculation results,the proposed method can reduce the dispersion of parameter identification results by a maximum of 40.72%and 70.05%,respectively,compared with the traditional fixed characteristic frequency *** proposed method paves the way for the subsequent development of adaptive state estimators and efficient embedded applications.

关键词： Lithium-ion battery Kinetic parameters Entropy evaluation Parameter identification Frequency characteristic

Establishment of highly efficient plant regeneration of Paeonia ostii‘Fengdan’through optimization of callus,adventitious shoot,and rooting induction

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Horticultural Plant Journal 2022年第6期8卷 777-786页

作者： Rong Liu Yuqian Xue Huiting Ci Jie Gao shunli wang Xiuxin Zhang Key Laboratory of Biology and Genetic Improvement of Horticultural Crops Ministry of Agriculture and Rural Affairs ChinaInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesInstitute of PeonyChinese Academy of Agricultural SciencesBeijing 100081China

Tree peony is a famous ornamental plant,while the low propagation rate is the main hurdles hindering the industry *** now,the highly efficient regeneration system for tree peony is not *** this study,using Paeonia ostii’Fengdan’mature embryos,the effects of variations in inoculation method,initiating culture,adventitious shoot induction,rooting media,plant growth regulators(PGRs),and a nonconventional PGR(plant extracts)on regeneration from explants were *** embryo cultures,embryonic callus induction rate of 1/4 embryos was the highest among those of embryos with other three technical treatments(whole embryos,1/2 embryos,and pieces of embryos).The woody plant medium(WPM)containing 1.0 mg·L^(-1)6-BA,0.5 mg·L^(-1)GA3,30.0 g·L^(-1)sucrose,and 3.0 g·L^(-1)phytagel significantly improved shoot induction and multiplication.3.0 mg·L^(-1)plant extracts promoted hypocotyl germination,rooting,and root growth,in direct embryo culture,and a combination of 3.0 mg·L^(-1)plant extracts+2.0 mg·L^(-1)IBA+1.5 mg·L^(-1)IAA produced optimal rooting induction rate for multiple shoots in direct embryo culture and indirect somatic *** the three in vitro micropropagation methods,the highest shoot proliferation coefficient(5.4±0.2)was obtained with indirect somatic ***,the propagation ability of shoots remains high,even when culture propagation was continued for more than two ***,a reliable system for plant regeneration from mature embryos derived from ***’Fengdan’callus and two direct embryo culture systems have been *** novel regeneration system could facilitate uniform seedling production.

关键词： Tree peony Mature embryos Plant extracts Shoot induction Rooting Plant regeneration

Online Identification of Lithium-ion Battery Model Parameters with Initial Value Uncertainty and Measurement Noise

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Chinese Journal of Mechanical Engineering 2023年第1期36卷 305-314页

作者： Xinghao Du Jinhao Meng Kailong Liu Yingmin Zhang shunli wang Jichang Peng Tianqi Liu College of Electrical Engineering Sichuan UniversityChengdu610044China School of Electrical Engineering Xi’an Jiaotong University710049Xi’anChina Warwick Manufacturing Group University of WarwickCoventryUK Southwest University of Science and Technology Mianyang621010China Nanjing Institute of Technology Nanjing211103China

Online parameter identification is essential for the accuracy of the battery equivalent circuit model(ECM).The traditional recursive least squares(RLS)method is easily biased with the noise disturbances from sensors,which degrades the modeling accuracy in ***,the recursive total least squares(RTLS)method can deal with the noise interferences,but the parameter slowly converges to the reference with initial value *** alleviate the above issues,this paper proposes a co-estimation framework utilizing the advantages of RLS and RTLS for a higher parameter identification performance of the battery *** converges quickly by updating the parameters along the gradient of the cost *** is applied to attenuate the noise effect once the parameters have *** simulation and experimental results prove that the proposed method has good accuracy,a fast convergence rate,and also robustness against noise corruption.

关键词： Li-ion battery Equivalent circuit model Recursive least squares Recursive total least squares

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褐角苔遗传转化体系的建立

广西科学 2024年第3期31卷 469-477页

作者：黄丹彭涛姜山王顺莉李旭强马怀富盛福源贵州师范大学生命科学学院贵州贵阳550025 贵州师范大学国际教育学院贵州贵阳550025

本研究旨在筛选适用于农杆菌(Agrobacterium)介导的角苔植物遗传转化体系,为今后研究早期陆生植物的进化提供理论基础。实验使用携带p CAMBIA1305.2质粒的农杆菌AGL1菌株对褐角苔(Folioceros fuciformis)外植体进行侵染,将潮霉素作为筛... 详细信息

本研究旨在筛选适用于农杆菌(Agrobacterium)介导的角苔植物遗传转化体系,为今后研究早期陆生植物的进化提供理论基础。实验使用携带p CAMBIA1305.2质粒的农杆菌AGL1菌株对褐角苔(Folioceros fuciformis)外植体进行侵染,将潮霉素作为筛选标记,通过比较外植体预培养时间、菌液OD值、菌液添加量、乙酰丁香酮(AS)浓度和共培养时间来构建该物种的遗传转化体系。结果表明,褐角苔抗性植株筛选所用潮霉素的最适浓度为15 mg/L,预培养4 d的外植体侵染后状态最好。最佳侵染条件为共培养基中添加80μL OD600为0.8的农杆菌菌液,AS浓度为100μmol/L,共培养时间为3 d。通过潮霉素筛选、PCR、实时荧光定量PCR(RT-q PCR)和β-葡萄糖苷酸酶(GUS)染色鉴定获得转基因植株褐角苔。研究结果可为后续角苔植物基因功能的研究提供技术支持。

关键词：褐角苔外植体农杆菌介导法遗传转化体系

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铁路车站取送调车仿真实验研究

实验室科学 2024年第1期27卷 17-20,25页

作者：王顺利邓灼志殷勇刘意西南交通大学交通运输与物流学院交通运输国家级实验教学示范中心四川成都610031

取送调车作业是铁路车站重要的一个作业环节,以客货纵列式衡阳站为模型,构建取送调车作业仿真系统,创新取送调车作业仿真实验。取送调车仿真实验按如下过程展开:了解仿真车站设备配置情况,根据调车场、货场、专用线、客技站现车情况设... 详细信息

取送调车作业是铁路车站重要的一个作业环节,以客货纵列式衡阳站为模型,构建取送调车作业仿真系统,创新取送调车作业仿真实验。取送调车仿真实验按如下过程展开:了解仿真车站设备配置情况,根据调车场、货场、专用线、客技站现车情况设置不同难度的初始仿真环境,装卸进度管理,熟悉车站现车状态,熟悉取送调车作业计划编制界面及功能,编制客技站取送计划,编制货场、专业线取送调车作业计划,取送调车作业计划检验与执行。在实验过程中,根据实验对象的不同,设置不同的难度层次,如此反复训练,使实验对象能熟练掌握取送调车作业职业技能。

关键词：铁路车站取送调车仿真实验