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CSEE Journal of Power and Energy Systems 2021年第5期7卷 1113-1121页

作者： Zeming Li Junyong Liu Yue Xiang Xin Zhang Yanxin CHAI College of Electrical Engineering Sichuan UniversityChengdu 610065China. Energy and Power Theme School of WaterEnergy and EnvironmentCranfield UniversityCranfield MK430ALUK.

The threat of environmental degradation attracts great attention to clean energy production and transportation.However,the limited scope of energy consumption causes the large-scale of clean energy sources to be abandoned in Sichuan province.In the meantime,the development of modern greenhouse cultivation has transformed the agriculture industry to develop a brand-new type of electrical load in the grid.Consequently,the agricultural load can be used to consume the clean energy while facilitating plant growth.In this paper,an innovative agricultural load model is proposed based on crop evapotranspiration and daily light integration.Furthermore,the proposed agricultural load model is also applied to investigate the electricity consumption of five types of crop planting.The results illustrate that the power consumption is primarily driven by an artificial lighting compensation system.

关键词： Agriculture load model crop evapotranspiration model daily light integration model power consumption

Clean Energy Consumption of Power Systems Towards Smart Agriculture: Roadmap, Bottlenecks and Technologies

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CSEE Journal of Power and Energy Systems 2018年第3期4卷 273-282页

作者： Junyong Liu Yanxin CHAI Yue Xiang Xin Zhang Si Gou Youbo Liu Department of Electrical Engineering Sichuan UniversityChengdu 610065China Electricity National Control Centre National GridWokinghamRG415BNUK. Department of Irrigation and Drainage Engineering Sichuan UniversityChengdu 610065China.

Over the past decades,both agriculture and power systems have faced serious problems,such as the power supply shortage in agriculture,and difficulties of clean energy consump-tion in the power system.To address and overcome these issues,this paper proposes an idea to combine smart agriculture and clean energy consumption,use surplus clean energy to supply agriculture production,and utilize smart agriculture to support power system with clean energy penetration.A comprehensive review has been conducted to first depict the roadmap of coupling a agriculture-clean energy system,analyze their feasibilities and advantages.The recent technologies and bottlenecks are summa-rized and evaluated for the development of a combined system consisting of smart agriculture production and clean energy consumption.Several case studies are introduced to explore the mutual benefits of agriculture-clean energy systems in both the energy and food industries.

关键词： Clean energy consumption economic operation information technology smart agriculture multi-energy system photovoltaic power smart grid.

Incentive-based demand response model for maximizing benefits of electricity retailers

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Journal of Modern Power Systems and Clean Energy 2019年第6期7卷 1644-1650页

作者： Yanxin CHAI Yue XIANG Junyong LIU Chenghong GU Wentao ZHANG Weiting XU College of Electrical Engineering and Information Technology Sichuan UniversityChengdu 610065China Department of Electronic and Electrical Engineering University of BathBath BA27AYUK State Grid Sichuan Economic Research Institute Chengdu 610000China

The change of customer behaviors and the fluctuation of spot prices can affect the benefits of electricity retailers.To address this issue,an incentive-based demand response(DR)model involving the utility and elasticity of customers is proposed for maximizing the benefits of retailers.The benefits will increase by triggering an incentive price to influence customer behaviors to change their demand consumptions.The optimal reduction of customers is obtained by their own profit optimization model with a certain incentive price.Then,the sensitivity of incentive price on retailers’benefits is analyzed and the optimal incentive price is obtained according to the DR model.The case study verifies the effectiveness of the proposed model.

关键词： Demand response Customer utility Price elasticity of demand Retailer profit Incentive price

面向可靠性提升的关联规则驱动下配电网投资规划优选模型与方法

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电力自动化设备 2020年第3期40卷 85-92页

作者：柴雁欣向月刘俊勇四川大学电气工程学院四川成都610065

随着清洁能源的接入、供需交互的加深,当前计及完备潮流方程与网络安全约束的投资规划优化模型在面对大量改造措施决策时,存在计算繁琐、收敛性差的问题。提出了一种基于改造措施与可靠性指标关联规则取代潮流与网络安全约束的配电网投... 详细信息

随着清洁能源的接入、供需交互的加深,当前计及完备潮流方程与网络安全约束的投资规划优化模型在面对大量改造措施决策时,存在计算繁琐、收敛性差的问题。提出了一种基于改造措施与可靠性指标关联规则取代潮流与网络安全约束的配电网投资规划优选模型与方法,该模型中配电网可靠性指标与改造措施间的关联关系通过选择合适的机器学习算法实现。分析了可靠性与改造措施的关联规则,分别以可靠性提升最大和投资费用最少为目标建立基于关联规则驱动的配电网投资规划优选模型,考虑各类改造措施对配电网可靠性指标的提升效益,实现配电网投资规划方案优选。通过实例验证了所提投资规划优选优化模型和求解方法的快速性、可行性与有效性。

关键词：配电网投资规划关联规则机器学习改造措施可靠性优化决策模型

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大学生娱乐明星崇拜现象及引导策略

忻州师范学院学报 2022年第2期38卷 130-134页

作者：李艳馨柴璐太原科技大学马克思主义学院山西太原030024

随着经济与文化的繁荣和发展,娱乐明星日益成为大学生关注的热点,但对于正处于价值观形成期的大学生来说,极易在娱乐明星崇拜中出现非理性表现。文章通过分析大学生实现“自我同一性”的心理需求、高校榜样教育现状、媒体过度娱乐化等... 详细信息

随着经济与文化的繁荣和发展,娱乐明星日益成为大学生关注的热点,但对于正处于价值观形成期的大学生来说,极易在娱乐明星崇拜中出现非理性表现。文章通过分析大学生实现“自我同一性”的心理需求、高校榜样教育现状、媒体过度娱乐化等原因引导大学生提高媒介素养、增强高校榜样教育实效性、正确发挥媒介导向作用,从而客观认识娱乐明星崇拜现象,规范和引导大学生的娱乐明星崇拜行为。

关键词：大学生娱乐明星崇拜榜样教育

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基于小波变换的电网模型一致性稽查研究

自动化仪表 2023年第4期44卷 84-88,94页

作者：柴雁欣崔焱李学龄南方电网数字电网研究院有限公司平台安全分公司广东广州510663

为了对电网系统进行管理,对电网模型中的畸变信号进行了稽查检测。阐述了电网畸变信号检测的研究现状,在电网模型畸变信号的稽查方法中,研究了面向电网信号的小波变换能量指标问题。重点采用小波变换方法对信号电气量的小波分析指标进... 详细信息

为了对电网系统进行管理,对电网模型中的畸变信号进行了稽查检测。阐述了电网畸变信号检测的研究现状,在电网模型畸变信号的稽查方法中,研究了面向电网信号的小波变换能量指标问题。重点采用小波变换方法对信号电气量的小波分析指标进行研究,并结合曲线拟合方法对稽查方法进行优化设计。仿真结果表明,该稽查方法可有效检测电网故障,避免了电路的误动断路,提高了基波信号与原始信号的一致性。该研究为电网模型的一致性稽查提供了参考。

关键词：小波变换电网模型电网畸变信号电力调度一致性稽查曲线拟合

Break the strength-ductility trade-off in a transformation-induced plasticity high-entropy alloy reinforced with precipitation strengthening

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Journal of Materials Science & Technology 2022年第13期108卷 125-132页

作者： Dong Huang yanxin Zhuang Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education) Northeastern UniversityShenyang110819China

Transformation-induced plasticity(TRIP)endows material with continuous work hardening ability,which is considered as a powerful weapon to break the strength-ductility tradeoff.However,FCC based alloys with TRIP effect can not get rid of the“soft”feature of the structure entirely,resulting in insufficient yield strength.Here,a Co_(x)Cr_(25)(AlFeNi)_(75-x) high-entropy alloy is designed.NiAl phase is used as strengthening component to improve yield strength,while TRIP effect ensures plasticity.Compared with the previous TRIP high-entropy alloy,its yield strength is nearly doubled,and the uniform elongation is more than 55%at room temperature.Furthermore,the corresponding multiphase microstructure evolution and deformation mechanisms are investigated.Significantly,stacking faults andΣ3 twin boundaries are confirmed to be the nucleation sites of HCP phase by HAADF-STEM.Ingenious composition design and proper heat treatment process make it a perfect combination of precipitation strengthening and transformationinduced plasticity,and thus guide design in the high-performance alloy.

关键词： High-entropy alloys Transformation-induced plasticity Precipitation strengthening Nucleation site HAADF-STEM

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面向电网协同业务场景的数据全链路检测研究

自动化仪表 2022年第12期43卷 49-52,57页

作者：李学龄崔焱柴雁欣南方电网数字电网研究院有限公司平台安全分公司广东广州510663

伴随电力网络的高速发展,电网成为承载与传输电力能源的主要物理载体。在电网运行过程中,需进行数据全链路的检测,以保证各类业务协同开展。首先,分析了电网数据链路检测的国内外研究现状。针对电力企业的运行条件,设计并实现了数据全... 详细信息

伴随电力网络的高速发展,电网成为承载与传输电力能源的主要物理载体。在电网运行过程中,需进行数据全链路的检测,以保证各类业务协同开展。首先,分析了电网数据链路检测的国内外研究现状。针对电力企业的运行条件,设计并实现了数据全链路检测系统。然后,采用Web开发技术,集成多个业务场景,综合实现电网运营的协同管理,完成了数据全链路的检测。最后,通过系统测试进一步验证了设计和实现方式的准确性。该系统创新性地将原本需人工手动维护的相关业务转变为自动化实施,并在电网业务数据的基础上构建了自动化电网运营监测体系。该研究成果有助于提高电力企业电网运行的高效性和安全性,对该领域的研究提供了积极的指导意义。

关键词：全链路检测 Web开发业务场景协同业务电网运行效率检测数据交互

A stochastic gradient-based two-step sparse identification algorithm for multivariate ARX systems

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Control Theory and Technology 2024年第2期22卷 213-221页

作者： yanxin Fu Wenxiao Zhao Key Laboratory of Systems and Control Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing100049China

We consider the sparse identification of multivariate ARX systems, i.e., to recover the zero elements of the unknown parameter matrix. We propose a two-step algorithm, where in the first step the stochastic gradient (SG) algorithm is applied to obtain initial estimates of the unknown parameter matrix and in the second step an optimization criterion is introduced for the sparse identification of multivariate ARX systems. Under mild conditions, we prove that by minimizing the criterion function, the zero elements of the unknown parameter matrix can be recovered with a finite number of observations. The performance of the algorithm is testified through a simulation example.

关键词： ARX system Stochastic gradient algorithm Sparse identification Support recovery Parameter estimation Strong consistency

鸭源奇异变形杆菌和摩氏摩根菌的分离鉴定、NDM耐药基因检测及中药体外抑菌试验

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畜牧与饲料科学 2023年第5期44卷 121-128页

作者：石玉节柴贝贝张彦昕郑州赛科药业科技有限公司河南郑州450000

[目的]确定引起广东省某鸭场鸭群发病的细菌性病原,调查分离菌株对抗菌药物的敏感性及NDM耐药基因携带情况,并筛选出针对分离菌株具有较好体外抑制作用的单味中药。[方法]采集发病鸭只的肝脏、脾脏等病料样本进行细菌分离培养,采用16S r... 详细信息

[目的]确定引起广东省某鸭场鸭群发病的细菌性病原,调查分离菌株对抗菌药物的敏感性及NDM耐药基因携带情况,并筛选出针对分离菌株具有较好体外抑制作用的单味中药。[方法]采集发病鸭只的肝脏、脾脏等病料样本进行细菌分离培养,采用16S rDNA序列PCR扩增及测序比对方法确定分离菌株的种属,利用纸片扩散法(K-B法)测定分离菌株对13种抗菌药物的敏感性,应用PCR法检测10种NDM耐药基因在分离菌株中的分布情况,采用肉汤二倍稀释法测定14种单味中药对分离菌株的最小抑菌浓度(MIC)。[结果]经革兰染色镜检、生化鉴定及16S rDNA序列分析,从发病鸭病料中分离、鉴定出1株奇异变形杆菌(SK1株)和1株摩氏摩根菌(SK2株)。SK1株和SK2株均对新霉素、头孢他啶、头孢噻肟、头孢哌酮敏感,对多西环素、复方新诺明、恩诺沙星、氟苯尼考、多黏菌素B耐药。SK1株10种NDM耐药基因均未检出,SK2株携带blaNDM-1基因,其他9种NDM耐药基因未检出。博落回对SK1株的抑菌效果最好,MIC为3.906 mg/mL;连翘对SK2株的抑菌效果最好,MIC为3.906 mg/mL。[结论]引起该鸭场鸭群发病的主要病原菌为奇异变形杆菌和摩氏摩根菌,可使用新霉素、头孢菌素类抗菌药物及中药博落回、连翘对患病鸭只进行治疗。

关键词：鸭分离鉴定 NDM耐药基因奇异变形杆菌摩氏摩根菌中药体外抑菌作用