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Primal dual interior point dynamic programming for coordinated charging of electric vehicles

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Journal of Modern Power Systems and Clean Energy 2017年第6期5卷 1004-1015页

作者： Jian ZHANG Yigang HE Mingjian CUI yongling lu Hefei University of Technology Hefei 230009China University of Texas at Dallas RichardsonTX 75080USA State Grid Jiangsu Electric Power Company Research Institute Nanjing 211103JiangsuChina

Coordinated charging of electric vehicles(EVs)is critical to provide safe and cost effective operation of distribution systems where household single phase charging of EV could contribute to imbalance of the distribution *** date,reported researches on optimization methods for coordinated charging aiming at minimizing power losses have the disadvantages of low calculation efficiency when applied to large systems or have not taken the voltage constraints into *** phase component and polar coordinates power flow equations of an unbalanced distribution system are *** dual interior point dynamic programming is introduced for coordinated charging of EVs to minimize distribution system losses where charging demand,voltage and current constraints have been taken into *** proposed optimization is evaluated using an actual 423-bus case as the test *** are promisingwith the proposed method having good convergence under time-efficient calculations while providing optimization of power losses,lower load variance,and improvement of voltage profile versus uncoordinated scenarios.

关键词： Electric vehicles(EVs) Coordinated charging Primal dual interior point programming Distribution system Power losses

Glutamine mitigates murine burn sepsis by supporting macrophage M2 polarization through repressing the SIRT5-mediated desuccinylation of pyruvate dehydrogenase

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Burns & Trauma 2022年第1期10卷 1-19页

作者： Yuanfeng Zhu Xiaoli Chen yongling lu Lin Xia Shijun Fan Qianying Huang Xin Liu Xi Peng Clinical Medical Research Center Southwest HospitalThird Military Medical University(Army Medical University)Chongqing400038China State Key Laboratory of Trauma Burns and Combined InjurySouthwest HospitalThird Military Medical University(Army Medical University)Chongqing400038China

Background:Alternative(M2)-activated macrophages drive the anti-inflammatory response against sepsis,a leading cause of death in patients suffering from burn *** M2 polarization is intrinsically linked with dominant oxidative phosphorylation(OXPHOS).Glutamine serves as a major anaplerotic source to fuel OXPHOS,but it remains unknown whether glutamine can modulate metabolic checkpoints in OXPHOS that favour M2 *** study aims to explore whether glutamine essentially supports M2 polarization in IL-4-stimulated murine macrophages by sustaining the activity of PDH and whether glutamine augments macrophage M2 polarization and thus alleviates inflammation and organ injury in a murine burn sepsis ***:To understand how glutamine promotes M2 activation in interleukin(IL-4)-treated murine macrophages,we detected glutamine-dependent M2 polarization and its relationship with the pyruvate dehydrogenase(PDH)complex by RT-PCR,flow cytometry and western *** explore how glutamine modulates PDH activity and thus supports M2 polarization,we compared the expression,phosphorylation and succinylation status of PDHA1 and then examined sirtuin SIRT5-dependent desuccinylation of PDHA1 and the effects of SIRT5 overexpression on M2 polarization by RT-PCR,flow cytometry and western *** determine whether glutamine or its metabolites affect M2 polarization,macrophages were cocultured with metabolic inhibitors,and then SIRT5 expression and M2 phenotype markers were examined by RT-PCR,flow cytometry and western ***,to confirm the in vivo effect of glutamine,we established a burn sepsis model by injecting Pseudomonas aeruginosa into burn wounds and observing whether glutamine alleviated proinflammatory injuries by RT-PCR,flow cytometry,western blot,immunofluorescent staining,hematoxylin-eosin staining and enzyme-linked immuno sorbent ***:We showed that consumption of glutamine supported M2 activation in IL-4-treated murine macrophages b

关键词： Glutamine SIRT5 Desuccinylation PDH Macrophages polarization Burn Sepsis

PSA controls hepatic lipid metabolism by regulating the NRF2 signaling pathway

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Journal of Molecular Cell Biology 2021年第7期13卷 527-539页

作者： Bangliang Huang Xin Xiong Linlin Zhang Xiufei Liu Yuren Wang Xiaoli Gong Qian Sang yongling lu Hua Qu Hongting Zheng Yi Zheng Department of Endocrinology Translational Research of Diabetes Key Laboratory of Chongqing Education Commission of ChinaThe Second Affiliated Hospital of Army Medical UniversityChongqingChina Medical Research Center Southwest Hospital of Army Medical UniversityChongqingChina

The activity of proteinase is reported to correlate with the development and progression of nonalcoholic fatty liver disease(NAFLD).Puromycin-sensitive aminopeptidase(PSA/NPEPPS)is an integral nontransmembrane enzyme that functions to catalyze the cleavage of amino acids near the N-terminus of polypeptides.A previous study suggested that this enzyme acts as a regulator of neuropeptide activity;however,the metabolic function of this enzyme in the liver has not been ***,we identified the novel role of PSA in hepatic lipid ***,PSA expression was lower in fatty livers from NAFLD patients and mice(HFD,ob/ob,and db/db).PSA knockdown in cultured hepatocytes exacerbated diet-induced triglyceride accumulation through enhanced lipogenesis and attenuated fatty acid β-***,PSA mediated activation of the master regulator of antioxidant response,nuclear factor erythroid 2-related factor 2(NRF2),by stabilizing NRF2 protein expression,which further induced downstream antioxidant enzymes to protect the liver from oxidative stress and lipid ***,liver-specific PSA overexpression attenuated hepatic lipid accumulation and steatosis in ob/ob ***,in human liver tissue samples,decreased PSA expression correlated with the progression of ***,our findings suggest that PSA is a pivotal regulator of hepatic lipid metabolism and its antioxidant function occurs by suppressing NRF2 ***,PSA may be a potential biomarker and therapeutic target for treating NAFLD.

关键词： PSA NAFLD lipogenesis fatty acidβ-oxidation NRF2

GIS partial discharge data enhancement method based on self attention mechanism VAE-GAN

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Global Energy Interconnection 2023年第5期6卷 601-613页

作者： Qinglin Qian Weihao Sun Zhen Wang yongling lu Yujie Li Xiuchen Jiang School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai200240P.R.China State Grid Jiangsu Electric Power Co. Ltd.Nanjing211100P.R.China

The reliability of gas-insulated switchgear(GIS)partial discharge fault diagnosis is crucial for the safe and stable operation of power *** study proposed a data enhancement method based on a self-attention mechanism to optimize the VAE-GAN method and solve the problem of the lack of partial discharge samples and the unbalanced distribution between different ***,the non-subsampled contourlet transform(NSCT)algorithm was used to fuse the UHF and optical partial discharge signals to obtain a photoelectric fusion phase resolved partial discharge(PRPD)spectrum with richer ***,the VAE structure was introduced into the traditional GAN,and the excellent hidden layer feature extraction ability of the VAE was used to guide the generation of the ***,the self-attention mechanism was integrated into the VAE-GAN,and the Wasserstein distance and gradient penalty mechanisms were used to optimize the network loss function and expand the sample sets to an equilibrium ***,the KAZE and polar coordinate distribution entropy methods were used to extract the expanded *** eigenvectors of the sets were substituted into the long short-term memory(LSTM)network for partial discharge fault *** experimental results show that the sample generation quality and fault diagnosis results of this method were significantly better than the traditional data enhancement *** structure similarity index measure(SSIM)index is increased by 4.5%and 21.7%,respectively,and the average accuracy of fault diagnosis is increased by 22.9%,9%,5.7%,and 6.5%,*** data enhancement method proposed in this study can provide a reference for GIS partial discharge fault diagnosis.

关键词： Partial discharge Data augmentation VAE-GAN Self-attention NSCT Fault diagnosis

SEVERAL PHYSICAL PROPERTIES OF TITANIUM IN SILICON

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Journal of Electronics(China) 1988年第1期5卷 40-46页

作者：曾树荣鲁永令傅春寅 Department of Physics Beijing University

This paper reports some results in the investigation of deep levels in titaniumdiffusion-doped silicon;there Ti-related doep levels are observed by the *** are two elettrontraps located at E_c-0.23eV and E_c-0.53eV in n-Si(Ti)and a hole trap located at E_v+0.32eV in p-Si(Ti).Thermal activation energy and the capture cross-section in the range of experimentaltemperature and other related parameters for these traps are obtained by transient capacitance ***,from our experimental results,a brief discussion on the bonding feature of traps and ontheir pinning to which band is given.

关键词： Semiconductor physics Ti-doped silicon DLTS

10~20 kV架空配电线路跳闸故障及其防治对策分析

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江苏电机工程 2016年第1期35卷 84-86页

作者：路永玲江苏省电力公司电力科学研究院江苏南京211103

以电网实际发生的10~20 k V架空配网线路跳闸故障数据为基础,进行大量统计分析及故障调查,从故障部位分布、故障月度变化、故障诱发原因等角度分析了配网故障的特征及变化规律,认为外力因素、雨雪大风、雷击、运行维护、设备质量和工艺... 详细信息

以电网实际发生的10~20 k V架空配网线路跳闸故障数据为基础,进行大量统计分析及故障调查,从故障部位分布、故障月度变化、故障诱发原因等角度分析了配网故障的特征及变化规律,认为外力因素、雨雪大风、雷击、运行维护、设备质量和工艺及用户原因是导致配电线路故障频发的主要因素,凸显出目前架空配电线路存在的主要问题,并有针对性地提出了防治对策,为提升配网供电可靠性提供参考。

关键词：架空配电线路外力破坏跳闸故障防治对策

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酒类产品中活性羰基化合物的研究

食品与发酵工业 2022年第7期48卷 312-318页

作者：司波陆洋卢永翎吕丽爽江苏省宿迁市产品质量监督检验所江苏宿迁223800 南京师范大学食品与制药工程学院江苏南京210023

活性羰基化合物(reactive carbonyl species,RCS)是一大类活泼小分子,包括乙二醛、甲基乙二醛、丙烯醛、巴豆醛、糠醛等,这些RCS因其在体内外具有高反应活性及毒性受到广泛关注。RCS能够通过迈克尔加成或席夫碱反应与蛋白质、核酸、磷... 详细信息

活性羰基化合物(reactive carbonyl species,RCS)是一大类活泼小分子,包括乙二醛、甲基乙二醛、丙烯醛、巴豆醛、糠醛等,这些RCS因其在体内外具有高反应活性及毒性受到广泛关注。RCS能够通过迈克尔加成或席夫碱反应与蛋白质、核酸、磷脂等亲核位点发生共价结合,从而引起多种慢性疾病,如阿尔兹海默症、心脑血管疾病、糖尿病等,对人体健康造成巨大威胁。酒类产品的加工过程,如不同香型白酒的高温蒸馏、酱香型白酒的高温堆积、葡萄酒和啤酒的微生物发酵以及贮藏过程中的发生复杂反应会产生一定量的RCS,从而造成安全隐患。该文针对酒类产品中RCS的来源、种类、含量及检测方法进行了剖析与综述,以期为酒类产品的安全生产和品质的提高提供理论依据。

关键词：酒活性羰基化合物来源含量检测

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面向电力物联网三维空间几何信道建模的研究

电子与信息学报 2022年第9期44卷 3051-3057页

作者：秦剑华杨穆天路永玲王真胡成博国网江苏省电力有限公司电力科学研究院南京211103 中国石油大学信息科学与工程学院科研院所北京102249

当前研究主要采用椭圆模型描述第6代(6G)电力物联网(IoT)物理层多节点通信场景,忽视了信号传输路径的俯仰角对系统性能造成的影响。为解决这一问题,该文通过建立3维半椭球体几何传输模型描述6G电力物联网物理层通信场景,提高了电力物联... 详细信息

当前研究主要采用椭圆模型描述第6代(6G)电力物联网(IoT)物理层多节点通信场景,忽视了信号传输路径的俯仰角对系统性能造成的影响。为解决这一问题,该文通过建立3维半椭球体几何传输模型描述6G电力物联网物理层通信场景,提高了电力物联网异构网物理层数据传输分析过程中的准确度。在提出的传输分析算法中,通过推导电力物联网通信无线传输信道中不同传输路径的复冲激响应函数表达式,揭示物理层数据的传输特性。数值分析不同传输路径间的互相关特性,探索电力物联网的时域传输特性,验证上述信道传输特性仿真结果的正确性,对于分析与设计电力物联网无线通信系统具有重要的理论依据和技术支撑。

关键词： 6G电力物联网 3维半椭球体信道模型异构网传输特性

基于Sm-PMN-PT和改进型DICH接口电路的压电取能功率提升方法

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高电压技术 2024年第8期50卷 3448-3462页

作者：舒胜文俞若珺张必震舒龙龙路永玲王真福州大学电气工程与自动化学院福州350108 南昌大学物理与材料学院南昌330036 国网江苏省电力有限公司电力科学研究院南京211103

通过压电取能方式将电力设备表面的机械振动能转化为电能,是实现电力专用传感器无源化的有效途径之一。然而,传感器高集成度和小型化发展趋势对压电取能功率提出了更高要求。为此,提出一种基于钐掺杂铌镁酸铅-钛酸铅(Sm-doped Pb(Mg_(1/... 详细信息

通过压电取能方式将电力设备表面的机械振动能转化为电能,是实现电力专用传感器无源化的有效途径之一。然而,传感器高集成度和小型化发展趋势对压电取能功率提出了更高要求。为此,提出一种基于钐掺杂铌镁酸铅-钛酸铅(Sm-doped Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3),Sm-PMN-PT)材料和改进型双中间电容回收(improved double intermediate capacitor harvesting,improved-DICH)接口电路的压电取能功率提升方法。首先,制备了不同Sm掺杂质量分数为x和PT质量分数为y的xSm-PMN-yPT压电双晶片,并对压电材料的性能参数进行了测试和对比;其次,在对比分析几种典型接口电路的基础上,设计了一种改进型DICH接口电路,并从理论上进行了取能功率的对比分析;然后,采用Multisim软件对不同接口电路的取能功率进行了仿真分析;最后,对Sm-PMN-PT压电双晶片和锆钛酸铅(Pb(Zr1–xTix)O3,PZT)压电陶瓷在不同接口电路下的取能功率和能量提取效率进行了对比测试。研究结果表明:基于2.5%Sm-PMN-32%PT材料和改进型DICH接口电路的压电取能装置具有516.3μW的高输出功率、61.1%的高能量提取效率和较强的负载适应性,在取能领域具有良好的工程应用前景。

关键词：电力传感器压电取能功率提升 Sm掺杂PMN-PT 接口电路