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14篇 您的检索式:作者名="Houlei"
    题名 作者 年代 出处 被引量
1Transient Fault Locating Method Based on Line Voltage and Zero-mode Current in Non-solidly Earthed Network显示文摘为解决配电网小电流接地故障时故障点定位困难的问题,提出一种基于线电压和零模电流暂态分量的故障定位新方法。该方法借助馈线自动化(feeder automation,FA)系统实现,不需要额外增加设备。馈线终端检测线电压和零模电流信号,利用暂态线电压的希尔伯特变换与暂态零模电流的乘积计算故障方向参数,FA主站根据故障点前后方向参数极性相反的特征确定故障点所在的线路区段。介绍基于线电压的小电流接地故障检测和接地故障相确定的算法。数字仿真与试验结果表明该方法是正确可行的。ZHANG Linli XU Bingyin XUE Yongduan GAO Houlei 2012中国电机工程学报2012,32,13:48
2A fast boundary protection for an AC transmission line connected to an LCCHVDC inverter station显示文摘For AC transmission lines connected to an LCC-HVDC inverter station,commutation failure can lead to the wrong operation of traditional protection.To solve the problem,this paper proposes a fast protection scheme using transient information from one end of the AC line.The boundary frequency characteristics of the AC line connected to LCC-HVDC inverter are analyzed first.This reveals the existence of significant attenuation on both high frequency signals and some specific frequency signals.Based on the boundary characteristics,a novel boundary protection principle utilizing a backward traveling wave is then proposed.A PSCAD/EMTDC simulation model of a±800 kV LCC-HVDC and 500 kV AC transmission system is established,and different fault cases are simulated.The simulation results prove that the novel protection principle is immune to commutation failure,fault resistance and fault type.Zhen Liu Houlei Gao Sibei Luo Le Zhao Yuyao Feng 2020Protection and Control of Modern Power Systems2020,5,1:2
3Transport and behavior of marine oil spill containing polycyclic aromatic hydrocarbons in mesocosm experiments显示文摘Polycyclic aromatic hydrocarbons(PAHs)are one of the most important groups in oil,and re sponsible for major toxic and/or carcinogenic impact on humans and wildlife.It is important to understand the behavior of PAHs in marine environment after an oil-spill incident.However,interaction between petroleum PAHs and microbial communities in a marine environment remains unclear.Therefore,a series of mesocosm experiments were conducted.in which water-accommodated fraction(WAF)of oil was generated to simulate an oil-spill scenario and to analyze the transport and behavior of marine oil spill containing PAHs with and without dispersants.Results indicate that the application of dispersant could increase the concentration of total PAHs in water column due mainly to significant increase in the concentration of highmolecular weight(HMW)PAHs at a lower removal rate.At the end of the 7-day experiment,significant amount of HMW PAHs were accumulated in sediment.In general,the application of dispersant did not increase the sediment uptake of PAHs but increased the PAHs concentration in water column.Dawei SHI Houlei JIA 2023Journal of Oceanology and Limnology2023,41,1:1
4Design and evaluation of a directional algorithm for transmission-line protection based on positive sequence fault components显示文摘GAO Houlei CROSSLEY P A 2006IEE Proceedings-Generation Transmission&Distribution2006,153,6:1
5A traveling-wave-based amplitude integral busbar protection technique显示文摘Zou Guibin Gao Houlei 2012IEEE Transactions on Power Delivery2012,27,2:1
6Fast pilot protection method based on waveform integral of traveling wave显示文摘Zou Guibin Gao Houlei 2013International Journal of Electrical Power & Energy Systems2013,,50:1
7Novel transient-energy-based directional pilot protection method for HVDC line显示文摘This paper proposes a novel directional pilot protection method based on the transient energy for bipolar HVDC line.Supposing the positive direction of current is from DC bus to the DC line,in the case of an internal line fault,the transient energies detected on both sides of the line are all negative within a short time,which denotes the positive direction fault;while for an external fault,the transient energy on one end is positive,which means a negative direction fault,but the transient energy on the opposite end is negative,which indicates that the fault direction is positive.According to these characteristics,an integration criterion identifying fault direction is constructed.In addition,through setting a fixed energy threshold,the faulted line and lightning disturbance can also be discriminated.Simulation results from UHVDC transmission system show the validity of the proposed protection method.Guibin Zou Qiang Huang Shenglan Song Bingbing Tong Houlei Gao 2017Protection and Control of Modern Power Systems2017,2,1:1
8Effect of fiber surface treatments on the properties of short sisal fiber/poly(lactic acid)biocomposites显示文摘Zou Hantao Wang Luoxin Gan Houlei 2012Polymer Composites2012,33,10:1
9Design and evaluation of a directional algorithm for transmission-line protection based on positive sequence fault components显示文摘Gao Houlei Crossley P A 2006IEE Proceedings-Generation Transmission & Distribution2006,153,6:1
10Adsorption of insensitive explosive TATB on single-walled carbon nanotubes显示文摘Luoxin Wang Changhai Yi Hantao Zou Houlei Gan Jie Xu Weilin Xu 0,,:1
11Ecological Risk of Heavy Metals in Sediment Around Techeng Island Special Marine Reserves in Zhanjiang Bay显示文摘The concentrations of five metals(Cu, Pb, Zn, Cd and Hg) were measured in sediments obtained before and after the establishment of Techeng Island Special Marine Reserves(TCISMR) in Zhanjiang Bay to evaluate the ecological risk of heavy metals. The results showed that average values of potential ecological risk indexes of heavy metals at all stations increased slightly from 32.09 to 30.54 after establishment of TCISMR. Optimal semivariance simulation showed that the contents of five heavy metals have strong spatial correlations in August 2010(before), while this correlations weakened in April 2013(after establishment of TCISMR), suggesting that the main sources of heavy metals changed. The Hakanson Risk Index(HRI) values in Donghai levee, central and southern parts of Zhanjiang harbor were high up to 60.13 and 46.46, respectively. And Zhanjiang Bay Channel, the areas around special marine reserves, the artificial reef areas and mangrove areas at south of Techeng Island are the areas with low ecological risk and high ecological value, which should be treated as the prior ecological protection areas. Our study provided a priority control pattern of heavy metal pollution in TCISMR, which greatly benefits the sustainable development and resource protection in Zhanjiang Bay.ZHANG Cuiping ZHENG Zhaoyong YAO Shaohui JIA Houlei XIAN Xianheng WANG Liang 2020Journal of Ocean University of China2020,19,3:1
12Empiricalanalysisoftheclusteringcoefficientintheuserobjectbipartitenetworks显示文摘LIUJianguo HOULei ZHANGYilu etal 2013InternationalJournalofModernPhysics2013,24,13:1
13Modeling methodology and fault simulation of distribution networks integrated with inverter-based DG显示文摘The increasing penetration of inverter-based distributed generations(DGs)significantly affects the fault characteristics of distribution networks.Fault analysis is a keystone for suitable protection scheme design.This paper presents the modelling methodology for distribution networks with inverter-based DGs and performs fault simulation based on the model.Firstly,a single inverter-based DG model based on the cascaded control structure is developed.Secondly,a simulation model of distribution network with two inverter-based DGs is established.Then,different fault simulations are performed based on the Real Time Digital Simulator(RTDS).Theoretical analyses are conducted to justify the simulation results,including the equivalent circuit of distribution networks with inverter-based DGs and the solution method for loop currents.Longchang Wang Houlei Gao Guibin Zou 2017Protection and Control of Modern Power Systems2017,2,1:0
14Synthesis of β‘—SIALON Powder from Clay显示文摘The synthesis of β'-sialon powder by carbothermic reduction of clay followed by nitridation has been carried out.The effect of charge mixture,temperature,holding time and nitrogen flow rate on synthesis was examined.The fired sample was identified by XRD and the nitrogen content of fired sample was measured.The synthesis process of sialon powder was described.LIJia-ju HOULei 1995China's Refractories1995,4,4:0
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