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Meteorological and Environmental Research 2013年第10期4卷 37-40,44页

作者： Ruozihan Tayier guangxiao luo Hydrology and Water Resources Survey Bureau in Hami of Xinjiang

[ Objective] The research aimed to analyze hydrological regimes of the medium and small rivers in Hami of Xinjiang. [ Method] According to actual observation data at Toudaogou hydrological station during 1956 -2010, climate, runoff, flood, sediment and water quality in the basin were analyzed. [ Result] Runoff in Toudaogou River was mainly from bedrock fissure water and rainfall, and depended on temperature and precipi- tation in the catchment zone. Runoff in Toudaogou River had very big change during the year. Runoff in whole year mainly concentrated during April -June, which occupied 57.9% of annual runoff. Flood in Toudaogou basin was divided into spring and summer flood from time, and snowmelt and rainstorm flood from type. Sediment load was related to terrain, gradient, runoff, precipitation, flood and process. Suspended sediment load at Toudaogou hydrological station had close relationship with the annual maximum flow capacity of flood peak, and related coefficient was 0.917. [ Conclusion] Hydrological regime in Toudaogou basin basically represented corresponding hydrological information of rivers without glacier water supply in Hami even whole western arid zone of China. The research could provide theoretical basis for scientifically using water resources of the medium and small rivers in the zone.

关键词： Hydrological regime Medium and small dvers Toudaogou basin Hami of Xinjiang China

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3ctest静电发生器的等效电路建模

安全与电磁兼容 2022年第4期 43-47页

作者：黄保成罗广孝华北电力大学电子与通信工程系华北电力大学河北省电力物联网技术重点实验室

静电发生器的等效电路模型对相关静电抗扰度的仿真分析有直接影响。以国产的3ctest(EDS 16H)静电发生器为研究对象,提出一种基于静电发生器模块化的物理结构和阻抗参数测量结果,建立高精度电路模型的方法。介绍了静电发生器的典型物理结... 详细信息

静电发生器的等效电路模型对相关静电抗扰度的仿真分析有直接影响。以国产的3ctest(EDS 16H)静电发生器为研究对象,提出一种基于静电发生器模块化的物理结构和阻抗参数测量结果,建立高精度电路模型的方法。介绍了静电发生器的典型物理结构,测量了各模块的阻抗特性,建立的等效电路考虑了接地电缆长短对阻抗参数的影响。根据标准2Ω电流靶、50Ω测试系统两种情况下测试的放电电流波形,拟合修正了等效电路参数,电路仿真结果与实测结果吻合较好。相关结果可以为实际的静电抗扰度测试提供参考。

关键词：静电放电静电发生器等效电路模型接地电缆

大功率沟槽栅场终止IGBT器件物理模型参数提取的新方法（英文）

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中国电机工程学报 2018年第20期38卷 6062-6070页

作者：罗广孝齐磊张卫东华北电力大学电气与电子工程学院

针对沟槽栅场终止技术IGBT器件,提出一种新颖的模型参数提取方法,给出详细的处理流程,并在考虑模型参数偏差的情况下分析IGBT器件串联中的电压不均衡问题。首先,采用功率器件曲线测试仪测试了器件的极间电容,从而拟合出IGBT芯片的有源... 详细信息

针对沟槽栅场终止技术IGBT器件,提出一种新颖的模型参数提取方法,给出详细的处理流程,并在考虑模型参数偏差的情况下分析IGBT器件串联中的电压不均衡问题。首先,采用功率器件曲线测试仪测试了器件的极间电容,从而拟合出IGBT芯片的有源区面积。通过功率半导体器件参数手册,结合相关半导体理论,反向计算获得其主要模型参数。通过搭建双脉冲测试平台,拟合开关过程测试曲线获得IGBT器件和时间相关的模型参数。在不同的试验条件下,测试、仿真结果的比较验证提取的模型参数,从而证实建议的参数提取方法。利用提取的模型参数,在考虑器件及驱动参数偏差的情况下分析柔性高压直流输电工程中的IGBT串联电压不均衡问题。

关键词：场终止IGBT 物理模型参数提取双脉冲测试电压不均衡

Compensation of Networked Control Systems with Time-delay and Data Packet Losses

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Compensation of Networked Control Systems with Time-delay an...

Symmetry and Nonnegativity-Constrained Matrix Factorization for Community Detection

2009中国控制与决策会议

作者： Ma Yongguang,Chen Wenying,luo guangxiao School of Control Science and Engineering,North China Electric Power University,Baoding,071003,China

With the incertitude of the network-induced time-delay and data packet losses in networked control systems(NCS),the performance of control systems would degrade,even *** this paper,a new design of controller is presented,here the controller uses event and time driving,and state observer is designed for estimating the states and compensation for time delay and *** the closed system is modeled as asynchronous dynamical system constrained by configuration event *** stability theory is used to analyze the stability of the closed loop system,and the states feedback controller design method is *** result of simulation experiment shows the validity of the proposed method,which well guarantees the stability of networked control systems with uncertain network-induced time-delay and data packet losses.

关键词： Networked Control systems State Observer Data Packet Dropout Exponential Stability

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IEEE/CAA Journal of Automatica Sinica 2022年第9期9卷 1691-1693页

作者： Zhigang Liu guangxiao Yuan Xin luo the School of Computer Science and Technology Chongqing University of Posts and TelecommunicationsChongqing 400065 the Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China the Faculty of Liberal Arts and Social Sciences The Education University of Hong KongHong Kong 999077China the School of Computer Science and Technology Dongguan University of TechnologyDongguan 523808 the College of Computer and Information Science Southwest UniversityChongqing 400715China

Dear editor,This letter presents a novel symmetry and nonnegativity-constrained matrix factorization(SNCMF)-based community detection model on undirected networks such as a social *** is a fundamental characteristic of a network,making community detection a vital yet thorny issue in network *** to its high interpretability and scalability。

关键词： network editor networks

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伊吾河流域水文特性分析

干旱区地理 1999年第1期22卷 47-52页

作者：骆光晓刘莉吴力平哈密水文水资源勘测大队哈密839000

本文利用新疆哈密地区的伊吾河流域３９年气象资料和２２年水文资料，对降水、径流的处内分配和年际变化及相关关系进行了综合特性分析，给出了千年一遇和百年一遇洪峰流量数据。

关键词：伊吾河流域降水量径流量水文特征河流

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TVS静电抑制器等效电路参数估算及应用

中国电机工程学报 2013年第16期33卷 204-211,29页

作者：罗广孝崔翔张卫东马海杰齐磊李尔平新能源电力系统国家重点实验室(华北电力大学) 北京市昌平区102206

提出一种静电脉冲防护中TVS器件(瞬态电压抑制器)的等效电路模型参数估算方法。基于半导体器件物理机理,考虑器件内建电势、击穿电压、结电容、及半导体的体电阻和封装的杂散电容电感等参数,建立TVS器件等效电路模型。搭建基于50高速测... 详细信息

提出一种静电脉冲防护中TVS器件(瞬态电压抑制器)的等效电路模型参数估算方法。基于半导体器件物理机理,考虑器件内建电势、击穿电压、结电容、及半导体的体电阻和封装的杂散电容电感等参数,建立TVS器件等效电路模型。搭建基于50高速测量系统的静电波形测试平台,通过电路仿真计算和相关试验的比较证实TVS等效电路模型在静电脉冲防护中的有效性,仿真和试验结果表明,串联电阻和封装杂散电感对静电脉冲的首个尖脉冲幅值具有显著的抑制作用。最后,应用建立的等效电路模型,对特高压变电站保护与控制设备模拟量端口的TVS器件脉冲抑制性能进行预测。

关键词：静电放电 TVS模型高速测量系统保护和控制设备交流端口

考虑电感频变特性的共模扼流圈全电路建模及参数提取

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中国电机工程学报 2019年第13期39卷 3955-3962页

作者：罗广孝黄珊陈文颖高海珍张卫东赵明敏鞠勇华北电力大学电气与电子工程学院北京昌平102206 中国电力科学研究院有限公司北京海淀100192

该文对共模扼流线圈电感的频变特性进行等效,采用全电路方法分析其对电磁干扰(electromagnetic interference,EMI)滤波器性能的影响。首先,对共模扼流线圈端子间的宽频阻抗特性进行测量,提取基本的等效电路参数;根据锰锌铁氧体材料磁导... 详细信息

该文对共模扼流线圈电感的频变特性进行等效,采用全电路方法分析其对电磁干扰(electromagnetic interference,EMI)滤波器性能的影响。首先,对共模扼流线圈端子间的宽频阻抗特性进行测量,提取基本的等效电路参数;根据锰锌铁氧体材料磁导率的频率特性和阻抗测量结果,采用幂函数对电感的频变特性进行描述,建立共模扼流线圈的全电路模型,并比较共模、差模端口传输特性。最后,结合EMI滤波器其余元器件的寄生参数,建立100k Hz^30MHz频段的等效电路模型,测试结果验证了此全电路等效模型的有效性,并讨论其在传导发射抑制中的应用。

关键词：传导发射 EMI滤波器共模扼流圈频变电感互感耦合

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雷电冲击下GIS外壳暂态电位升的研究

高压电器 2016年第9期52卷 61-64页

作者：王昊天张卫东张晓莉郭韶杰罗广孝华北电力大学新能源电力系统国家重点实验室北京102206 中国电力科学研究院北京100192

为了计算雷击GIS单相套管外引线时,GIS外壳暂态电位升高,建立了GIS电路模型。利用电磁场理论和多导体传输线理论提取了GIS主要元件参数,建立了GIS主要元件的电路模型。以某220 kV GIS智能开关设备为研究对象,计算了智能组件传感器安装处... 详细信息

为了计算雷击GIS单相套管外引线时,GIS外壳暂态电位升高,建立了GIS电路模型。利用电磁场理论和多导体传输线理论提取了GIS主要元件参数,建立了GIS主要元件的电路模型。以某220 kV GIS智能开关设备为研究对象,计算了智能组件传感器安装处GIS外壳TEV,并进行了试验验证。所得的仿真结果为下一步智能组件端口骚扰电压的研究提供基础。

关键词：传导干扰暂态外壳电压(TEV) 变电站 GIS建模

Kinetic study for the oxidation of cyclohexanol and cyclohexanone with nitric acid to adipic acid

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Chinese Journal of Chemical Engineering 2021年第1期34卷 183-189页

作者： Detao Pan guangxiao Li Yuanhai Su Huilong Wei Zhenghong luo Department of Chemical Engineering School of Chemistry and Chemical EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai 200240China

The adipic acid is an important intermediate in the production of nylon,polyurethane and polye ster resin *** industrial approach for preparing adipic acid is through the liquid catalytic oxidation of KA oil with nitric *** this work,a comprehensive model is developed for this reaction based on the kinetic study conducted in a continuous flow tubular *** kinetic model fits well with the experimental results across the experimental conditions,and the average relative error between the calculated and experimental values is 5.7%.Results show that there was an induction period at the early stage of ***,it is found that at temperature range of 328-358 K,the formation rate of adipic acid strongly dependents on the temperature and nitric acid *** developed model is used to predict the yield of adipic acid at 359-368 *** work in this study could provide much knowledge for industrial tubular reactor design.

关键词： Adipic acid Nitric acid Tubular reactor Kinetic model