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A switchable concentrating photovoltaic/concentrating solar power(CPV/CSP)hybrid system for flexible electricity/thermal generation

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Science China(Technological Sciences) 2023年第8期66卷 2332-2345页

作者： pan xinyu YUAN MengDi JU Xing XU Chao Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing 102206China

Due to the intermittency and indeterminacy of solar irradiance,balancing energy supply and load demand remains a *** paper proposed a switchable hybrid system that combines concentrating photovoltaic/concentrating solar power(CPV/CSP)technology with thermal energy storage(TES)to achieve flexible electricity and thermal generation by adjusting the incident solar flux of photovoltaic(PV).The hybrid system can directly transfer surplus solar energy into high-quality heat for storage using a rotatable PV/heat *** simulated results demonstrated that the hybrid system effectively improves power generation,optimally utilizes TES capacity,and reduces the levelized cost of electricity(LCOE).Over a selected seven-day period,the single-junction(1J)Ga As solar cells used in the hybrid system sustainably satisfied the load demand for more than five days without grid supplement,outperforming the CSP plant by an additional two *** hybrid system utilizing the 1J Ga As with the base configuration of solar multiple(SM)of 1.26 and TES capacity of 5 h improved the annual power production and renewable penetration(RP)by 20.8%and 24.8%compared with the conventional CSP plant,*** hybrid plant with monosilicon and a configuration of SM(1.8),PV ratio(1),and TES capacity(6 h)achieved an optimal LCOE of11.52$ct/k Wh and RP of 75.5%,which is 8.8%lower and 12.1%higher than the CSP plant,respectively.

关键词： concentrated photovoltaic concentrated solar power hybrid system flexible electricity/thermal ratio techno-economic analysis

基于“玄府-络脉”新视角阐析糖尿病认知功能障碍

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世界中医药 2024年第7期19卷 991-993,999页

作者：潘欣渝高云逸方泽阳魏军平中国中医科学院广安门医院北京100053

糖尿病认知功能障碍属于“消渴呆病”范畴,其病机本虚标实,以脏腑亏虚为本,痰瘀糖毒阻络为标。玄府、络脉是人体普遍存在的一种微观结构,具有维系周身气血津液运行的功能,玄府闭塞、络脉阻滞是多种疾病发生的病理基础。基于“玄府-络脉... 详细信息

糖尿病认知功能障碍属于“消渴呆病”范畴,其病机本虚标实,以脏腑亏虚为本,痰瘀糖毒阻络为标。玄府、络脉是人体普遍存在的一种微观结构,具有维系周身气血津液运行的功能,玄府闭塞、络脉阻滞是多种疾病发生的病理基础。基于“玄府-络脉”的新视角,分析其与糖尿病认知功能障碍发病的关联性。玄府闭塞,脑络不通,神机失用是糖尿病认知功能障碍的病机,治宜以通为用,临证组方借虫类风药开玄通络,共增药效,为糖尿病认知功能障碍的临床治疗提供思路。

关键词：玄府络脉糖尿病认知功能障碍风药虫类药中药理论

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Hydrodynamics in a new liquid–solid circulating conventional fluidized bed

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Particuology 2022年第11期70卷 20-29页

作者： Jingya Fu xinyu pan Zeneng Sun Ruoting Liu Ying Zheng Jesse Zhu Particle Technology Research Centre Department of Chemical and Biochemical EngineeringWestern UniversityLondonOntarioN6A 5B9Canada

A new type of liquid–solid fluidized bed,named circulating conventional fluidized bed(CCFB)which operates below particle terminal velocity was proposed and experimentally *** hydrodynamic behavior was systematically studied in a liquid–solid CCFB of 0.032 m *** 4.5 m in height with five different types of ***–solid fluidization with external particle circulation was experimentally realized below the particle terminal *** axial distribution of local solids holdup was obtained and found to be fairly uniform in a wide range of liquid velocities and solids circulation *** average solids holdup is found to be significantly increased compared with conventional fluidization at similar *** effect of particle properties and operating conditions on bed behavior was investigated as *** show that particles with higher terminal velocity have higher average solids holdup.

关键词： Circulating conventional fluidized bed(CCFB) Solids holdup Solids circulation rate Superficial liquid velocity Particle properties Operating conditions

An improved prediction method of subsequent commutation failure of an LCC-HVDC considering sequential control response

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Protection and Control of Modern Power Systems 2023年第3期8卷 173-183页

作者： Jinxin Ouyang xinyu pan Junjun Ye Chao Xiao Yanbo Diao Qingwu Zhang State Key Laboratory of Power Transmission Equipment and System Security and New Technology School of Electrical EngineeringChongqing UniversityChongqing 400044China Electric Power Research Institute of State Grid Henan Electric Power Company Zhengzhou 450052China Chongqing City Management College Chongqing 401331China NR Electric Co. LtdNanjing 211100China

Subsequent commutation failure(SCF)can be easily generated during the first commutation failure(CF)recovery process in a line-commutated converter-based high voltage direct-current *** poses a significant threat to the safe and stable operation of power systems,and accurate prediction of CF is thus ***,SCF is affected by the operating characteristics of the main circuit and the coupling effects of sequential control response in the inverter *** are difficult to predict *** this paper,a new SCF prediction method considering the control response is proposed based on the physical principle of *** time sequence and switching conditions of the controllers at different stages of the first CF recovery process are described,and the corresponding equations of commutation voltage affected by different controllers are *** calculation method of the SCF threshold voltage is proposed,and the prediction method is *** show that the proposed method can predict SCF accurately and provide useful tools to suppress SCF.

关键词： Line-commutated converter based high-voltage direct-current(LCC-HVDC) Subsequent commutation failure(SCF) Converter station Prediction

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基于压力传感器的汽车座椅腰托复位控制策略

汽车实用技术 2024年第16期49卷 70-74页

作者：车敏诗林霄生潘鑫宇曾乾乾惠州市唐群座椅科技股份有限公司广东惠州516000

座椅腰部支撑,即座椅腰托,早期主要用于减轻办公室人员因久坐而产生的疲劳感,但随着汽车行业一百多年的发展,久坐现象也逐渐出现在驾驶过程中。为了缓解驾乘人员在长途行车中的疲劳,提高其舒适性及安全性,汽车座椅对可调节座椅腰托需求... 详细信息

座椅腰部支撑,即座椅腰托,早期主要用于减轻办公室人员因久坐而产生的疲劳感,但随着汽车行业一百多年的发展,久坐现象也逐渐出现在驾驶过程中。为了缓解驾乘人员在长途行车中的疲劳,提高其舒适性及安全性,汽车座椅对可调节座椅腰托需求呈上升趋势。文章在汽车座椅腰托记忆-复位模式下,基于压力传感器,提出并优化了腰托复位控制策略,使腰托复位过程耗时短、无噪音,复位结果精度高,解决了由于硬件结构限制而出现的腰托复位工程难题。

关键词：汽车座椅座椅腰托腰托记忆-复位压力传感器

核电企业基于全链风控的高质量供应链管理体系建设

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中国核电 2024年第3期17卷 431-437页

作者：潘心瑜王绍蓉陈其邱宇青夏学传福建福清核电有限公司福建福清350318

福清核电围绕建设全链风控的高质量供应链管理体系目标,创新全链风控方法,构建供应链Top10风险管理体系;聚焦外部风险防控薄弱点,建设需求导向、协同创新的供应链协同管理体系,创建“六边形”科研合作标准化管理机制,推动“卡脖子”攻关... 详细信息

福清核电围绕建设全链风控的高质量供应链管理体系目标,创新全链风控方法,构建供应链Top10风险管理体系;聚焦外部风险防控薄弱点,建设需求导向、协同创新的供应链协同管理体系,创建“六边形”科研合作标准化管理机制,推动“卡脖子”攻关,激活产业链上下游创新内生动力,强链稳链补链,避免极端情况威胁供应链本质安全;聚焦内部风险源头治理,通过需求集约化精细化、全生命周期管控、敏捷流程再造,构建与机组安全稳定可靠高效运行相适应的高质量供应保障体系,防控供应链系统内生风险。通过一系列措施,从采购管理向供应链管理转型,提升产业链供应链韧性和安全可控水平。

关键词：核电全链风控高质量供应链体系建设

社区超重/肥胖老年人糖尿病患病风险预测模型构建及效能验证

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北京中医药 2024年第7期43卷 760-765页

作者：肖瑶方泽阳潘欣渝雷晓春魏军平北京中医药大学北京100029 中国中医科学院广安门医院北京100053 广内社区卫生服务中心中医科北京100053

目的构建社区超重/肥胖老年人糖尿病患病风险预测模型,并验证其效能。方法通过横断面调查的方式,了解北京市广内社区332例超重/肥胖老年人的糖尿病患病情况,并收集其一般情况、日常生活习惯、合并疾病情况、中医体质类型等信息;采用单因... 详细信息

目的构建社区超重/肥胖老年人糖尿病患病风险预测模型,并验证其效能。方法通过横断面调查的方式,了解北京市广内社区332例超重/肥胖老年人的糖尿病患病情况,并收集其一般情况、日常生活习惯、合并疾病情况、中医体质类型等信息;采用单因素Logistic回归对可能的危险因素进行筛选,进一步行多因素Logistic回归分析,并据结果构建社区超重/肥胖老年人糖尿病患病风险预测模型;用受试者工作特征(ROC)曲线检验该模型的预测效能。结果选取患有糖尿病的社区超重/肥胖老年人共139例(41.86%);平均脉压差大(OR=1.044)、腰围大(OR=1.035)、阳虚质(OR=3.529)、湿热质(OR=5.544)是社区超重/肥胖老年人患糖尿病的独立危险因素(P0.05),拟合度较好。本次建立的风险预测模型曲线下面积=0.715,95%CI为0.658~0.771,说明该预测模型预测效能较高。结论根据平均脉压差、腰围、高血压及中医体质成功构建了社区超重/肥胖老年人糖尿病患病风险预测模型,该模型具有较好的预测效能。

关键词：社区老年人超重肥胖糖尿病中医体质风险预测模型预测效能

Dynamic analysis of a concentrating photovoltaic/concentrating solar power (CPV/CSP) hybrid system

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Science China(Technological Sciences) 2019年第11期62卷 1987-1998页

作者： HAN Xue XU Chao pan xinyu JU Xing DU XiaoZe Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of MOE North China Electric Power University

Concentrating photovoltaic/concentrating solar power(CPV/CSP)systems suffer from varying irradiation and extreme working *** this study,a dynamic physical model is developed for the CPV/CSP hybrid system to analyze the dynamic responses of several key parameters,such as the solar radiation saltation or linear variation to represent the typical weather *** results show that the hybrid system could rapidly reach the steady state in less than about 53 s after the solar radiation saltation increases or decreases by 10%.The response time reflects that the thermal hysteresis of the hybrid system is mainly determined by varying the outlet temperature of R134a from the solar thermal ***,when the solar radiation changes linearly,a lower gradient is beneficial to remit the thermal hysteresis of the hybrid system and improve the thermal stability,and the parameters could be treated as the steady state values with a gradient of less than 0.2 W m^-2 s^-***,the quasi-steady state model was used to analyze the all-day dynamic performance of the hybrid *** shows that the power output and the flow rate are directly related to the direct normal irradiance(DNI),while the outlet temperature of R134a vapor could be almost constant except for the starting and stopping periods.

关键词： concentrating photovoltaic concentrating solar power transient simulation solar radiation disturbance dynamic performance

Experimental test of robustness of composite pulses to non-static classic noise in NMR

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Science China(Physics,Mechanics & Astronomy) 2017年第2期60卷 80-81页

作者： xinyu pan Institute of Physics Chinese Academy of Sciences Beijing 100190 China

High fidelity and robust quantum control is the requirement for Quantum Information Processing(QIP)and quantum computing *** negative factors,like pulse length error,system-bath coupling and the fluctuation of electronic instruments,deviate the quantum system evolution from the ideal *** suppress these errors,many quantum manipulation techniques have been *** pulses are designed to suppress off resonance error,pulse length error or the combination of ***

关键词：噪声鲁棒性脉冲核磁共振复合量子信息处理实验静态长度误差