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Optical simulation of in-plane-switching blue phase liquid crystal display using the finite-difference time-domain method 被引量:1
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作者 窦虎 马红梅 孙玉宝 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第9期117-121,共5页
The finite-difference time-domain method is used to simulate the optical characteristics of an in-plane switching blue phase liquid crystal display.Compared with the matrix optic methods and the refractive method,the ... The finite-difference time-domain method is used to simulate the optical characteristics of an in-plane switching blue phase liquid crystal display.Compared with the matrix optic methods and the refractive method,the finite-difference timedomain method,which is used to directly solve Maxwell's equations,can consider the lateral variation of the refractive index and obtain an accurate convergence effect.The simulation results show that e-rays and o-rays bend in different directions when the in-plane switching blue phase liquid crystal display is driven by the operating voltage.The finitedifference time-domain method should be used when the distribution of the liquid crystal in the liquid crystal display has a large lateral change. 展开更多
关键词 finite-difference time-domain method blue phase liquid crystal display in-plane switching convergence effect
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CHARACTERISTIC DIFFERENCE METHODS FOR TWO-PHASE DISPLACEMENT IN NATURALLY FRACTURED RESERVOIRS
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作者 芮洪兴 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 1995年第2期133-146,共14页
In this paper we shall give the characteristic difference methods for two phase displace meat problem in naturally fractured reservoirs.We shall prove the existence,uniqueness of the ap proximate solution and a priori... In this paper we shall give the characteristic difference methods for two phase displace meat problem in naturally fractured reservoirs.We shall prove the existence,uniqueness of the ap proximate solution and a priori discrete L2-error estimates. 展开更多
关键词 difference method TWO-phase DISPLACEMENT naturally fructured RESERVOIRS
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VARIABLE GRID FINITE DIFFERENCE METHOD FOR TWO-DIMENSIONAL TWO-PHASEIMMISCIBLE FLOW
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作者 孙文涛 《Acta Mathematica Scientia》 SCIE CSCD 1998年第4期379-386,共8页
An explicit,time-dependent variable grid finite difference method is introduced and analyzed for approximating the solution of a scalar conservation law in two dimension. The scheme is stable,and the numerical solutio... An explicit,time-dependent variable grid finite difference method is introduced and analyzed for approximating the solution of a scalar conservation law in two dimension. The scheme is stable,and the numerical solution is proved to converges to the relevant physical solution. 展开更多
关键词 finite difference method approximate of solution two-phase immiscible flow
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Finite Difference Method for Solving Material Balance Equation in Lithium-Ion Cell
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作者 Yusof Norzihani Hashim Ali Siti Aishah Arof Abdul Kariem 《材料科学与工程(中英文版)》 2010年第11期94-99,共6页
关键词 平衡方程 锂离子 差分方法 电池材料 有限元 求解 相分离器 电池放电
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Numerical simulation of an acoustic field generated by a phased arc array in a fluid-filled borehole 被引量:5
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作者 Che Xiaohua Qiao Wenxiao 《Petroleum Science》 SCIE CAS CSCD 2009年第3期225-229,共5页
The acoustic tools widely used in borehole well logging and being developed in borehole acoustic reflection imaging do not have the function of azimuthal measurement due to a symmetric source, so they can not be used ... The acoustic tools widely used in borehole well logging and being developed in borehole acoustic reflection imaging do not have the function of azimuthal measurement due to a symmetric source, so they can not be used to evaluate the azimuthal character of borehole formation. In this paper, a 3D finite difference method was used to simulate the acoustic fields in a fluid-filled borehole generated by a traditional monopole source and a phased arc array. Acoustic waveforms were presented for both cases. The analysis of the simulated waveforms showed that different from the monopole source, the acoustic energy generated by the phased arc array transmitter mainly radiated to the borehole in a narrow azimuthal range, which was the key technique to implement azimuthal acoustic well logging. Similar to the monopole source, the waveforms generated by the phased arc array in the fluid-filled borehole also contain compressional (P) waves and shear (S) waves refracted along the borehole, which is the theoretical foundation of phased arc array acoustic well logging. 展开更多
关键词 phased arc array acoustic field acoustic well logging AZIMUTH finite difference method
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THEORY OF BAINITIC TRANSFORMATION: A MODEL WITH COUPLED FIRST-ORDER PHASE TRANSFORMATIONS 被引量:1
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作者 Liu, X. Zhong, F. 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2000年第3期901-910,共10页
The Ginzbury-Landau theory for bainitic transformation was devised, which contains two first-order phase transformations, one being reconstructive represented by the diffusional proeutectoidal precipitation of ferrite... The Ginzbury-Landau theory for bainitic transformation was devised, which contains two first-order phase transformations, one being reconstructive represented by the diffusional proeutectoidal precipitation of ferrite, and the other the displacive transformation. It provides a coupled mechanism for the formation of bainite. With the numerical simulation results, a diffusion-induced nucleation and a diffusion-accompanied growth of displacive transformation were suggested. This theory can be helpful to over- throw the thermodynamic difficulty of displacive transformation above the Ms temperature, and also helpful to understand the Bs temperature, the partial supersaturation, the single variation of bainitic carbides, and the incomplete-reaction phenomenon of bainitic transformation, etc.. 展开更多
关键词 Bainitic transformations Computer simulation Crystalline materials Finite difference method Metallographic phases NUCLEATION phase transitions Steel metallurgy THERMODYNAMICS
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Phase-field simulation of competitive growth of grains in a binary alloy during directional solidification 被引量:2
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作者 Li Feng Ya-long Gao +3 位作者 Ni-ni Lu Chang-sheng Zhu Guo-sheng An Jun-he Zhong 《China Foundry》 SCIE 2018年第5期333-342,共10页
Taking Al-2%mole-Cu binary alloy as an example, the influence of grain orientation on competitive growth of dendrites under different competitive modes was investigated by using the three-dimensional(3-D) phasefield m... Taking Al-2%mole-Cu binary alloy as an example, the influence of grain orientation on competitive growth of dendrites under different competitive modes was investigated by using the three-dimensional(3-D) phasefield method. The result of phase-field simulation was verified by applying cold spray and directional remelting. In the simulation process, two competitive modes were designed: in Scheme 1, the monolayer columnar grains in multilayer columnar crystals had different orientations; while in Scheme 2, they had the same orientation. The simulation result showed that in Scheme 1, the growth of the dendrites, whose orientation had a certain included angle with the direction of temperature gradient, was restrained by the growth of other dendrites whose direction was parallel to the direction of temperature gradient. Moreover, the larger the included angle between the grain orientation and temperature gradient, the earlier the cessation of dendrite growth. The secondary dendrites of dendrites whose grain orientation was parallel to the temperature gradient flourished with increasing included angles between the grain orientation and temperature gradient. In Scheme 2, the greater the included angle between grain orientation and temperature gradient, the easier the dendrites whose orientation showed a certain included angle with temperature gradient inserted between those grew parallel to the temperature gradient, and the better the growth condition thereafter. Some growing dendrites after intercalation were deflected to the temperature gradient, and the greater the included angle, the lower the deflection. The morphologies of the competitive growth dendrites obtained through simulation can also be found in metallographs of practical solidification experiments. This implies that the two modes of competitive growth of dendrites characterized in the simulation do exist and frequently appear in practical solidification processes. 展开更多
关键词 phase-FIELD method binary alloy directional SOLIDIFICATION different PLANES COMPETITIVE GROWTH
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Turning methods for quadruped robot with two degrees of freedom per leg
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作者 李斌 杨一平 +1 位作者 邵雪松 王伟 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2011年第5期7-13,共7页
With the target at simplicity like facilitating the mechanical system,the quadruped robots usually have limited degrees of freedom per leg.Addressing the robot whose legs have only two degrees of freedom,this paper ex... With the target at simplicity like facilitating the mechanical system,the quadruped robots usually have limited degrees of freedom per leg.Addressing the robot whose legs have only two degrees of freedom,this paper explores several turning strategies including altering the median value,changing the phase difference,and modifying the amplitude.The insights of the proposed methods are that we break down the symmetries which exist during the process of the robot locomotion and rebuild them.Since we probe into the turning feasibility from the points of the median value,phase difference and amplitude in the sine functions,these turning methods are feature of universality.In order to evaluate these methods,this paper presents a new way to weigh the stability,which can be easily applied to practical robots.Experiments demonstrate that the quadruped turns around with little effort and endeavor. 展开更多
关键词 quadruped robot turning methods CONTROLLER AMPLITUDE mediam value phase difference
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A sensitive method of determining optic axis azimuth based on laser feedback
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作者 吴云 张鹏 +1 位作者 陈文学 谈宜东 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第12期272-275,共4页
A sensitive method to determine the optic axis azimuth of the birefringence element is presented, which is based on laser feedback. The phase difference between the two intensities in birefringence feedback changes wi... A sensitive method to determine the optic axis azimuth of the birefringence element is presented, which is based on laser feedback. The phase difference between the two intensities in birefringence feedback changes with the angle between the optic axis of the birefringence element and laser original polarization. The phase difference is highly sensitive to the relative position of the optic axis and the laser original polarization. This method is used to highly precisely determine the optic axis azimuth, and is able to distinguish between the fast axis and the slow axis of the birefringence element. Theoretical analysis and experimental results are both demonstrated. 展开更多
关键词 laser feedback optic axis differential method phase difference
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MATHEMATICAL MODEL OF TWO-PHASE FLUID NONLINEAR FLOW IN LOW-PERMEABILITY POROUS MEDIA WITH APPLICATIONS
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作者 邓英尔 刘慈群 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2003年第10期1184-1193,共10页
A mathematical model of two-phase fluid nonlinear flow in the direction of normal of ellipse through low-permeability porous media was established according to a nonlinear flow law expressed in a continuous function w... A mathematical model of two-phase fluid nonlinear flow in the direction of normal of ellipse through low-permeability porous media was established according to a nonlinear flow law expressed in a continuous function with three parameters, a mass conservation law and a concept of turbulent ellipses. A solution to the model was obtained by using a finite difference method and an extrapolation method. Formulas of calculating development index not only before but also after water breaks through an oil well in the condition of two-phase fluid nonlinear flow in the media were derived. An example was discussed. Water saturation distribution was presented. The moving law of drainage front was found. Laws of change of pressure difference with time were recognized. Results show that there is much difference of water saturation distribution between nonlinear flow and linear flow; that drainage front by water moves faster, water breaks through sooner and the index gets worse because of the nonlinear flow; and that dimensionless pressure difference gets larger at the same dimensionless time and difficulty of oil development becomes bigger by the nonlinear flow. Thus, it is necessary that influence of nonlinear flow on development indexes of the oil fields be taken into account. The results provide water-flooding development of the oilfields with scientific basis. 展开更多
关键词 low permeability porous media two-phase fluid nonlinear flow finite difference method extrapolation method
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The Modified Upwind Finite Difference Fractional Steps Method for Compressible Two-phase Displacement Problem
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作者 Yi-rangYuan 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2004年第3期381-396,共16页
For compressible two-phase displacement problem,the modified upwind finite difference fractionalsteps schemes are put forward.Some techniques,such as calculus of variations,commutative law of multiplicationof differen... For compressible two-phase displacement problem,the modified upwind finite difference fractionalsteps schemes are put forward.Some techniques,such as calculus of variations,commutative law of multiplicationof difference operators,decomposition of high order difference operators,the theory of prior estimates and tech-niques are used.Optimal order estimates in L^2 norm are derived for the error in the approximate solution.Thismethod has already been applied to the numerical simulation of seawater intrusion and migration-accumulationof oil resources. 展开更多
关键词 Two-phase displacement two-dimensional compressibility modified upwind finite difference fractional steps method convergence
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Analysis of Volatile Components in Different Parts of Polygala japonica Houtt.
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作者 Yushuo XIAO Jinqing LU +1 位作者 Jiamin MENG Li CAO 《Medicinal Plant》 CAS 2018年第1期6-8,共3页
[Objectives] To analyze the volatile components in different parts of Polygala japonica Houtt. and compare the differences of these volatile components. [Methods] The volatile components in different parts of P. japon... [Objectives] To analyze the volatile components in different parts of Polygala japonica Houtt. and compare the differences of these volatile components. [Methods] The volatile components in different parts of P. japonica Houtt. were analyzed by the headspace solid-phase microextraction( HS-SPME) combined with GC-MS,and the relative percentage of each component was determined by peak area normalization. [Results] Thirty kinds of volatile components were identified from the leaves and rhizomes of P. japonica Houtt.,mainly including olefins,aromatic hydrocarbons,alkanes and esters. [Conclusions] The volatile components in different parts of P. japonica Houtt. were different,and there may be difference in the medicinal value of volatile components in different parts,thus it is required to take an overall consideration of these differences in the development and utilization of P. japonica Houtt. 展开更多
关键词 Polygala japonica Houtt. Volatile components different parts Headspace solid-phase microextraction(HS-SPME) method
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Ni-Pt/MgAl_(2)O_(4)双金属催化剂构筑及其对不同构型烃类蒸汽重整制氢性能的影响
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作者 张菲依 王晨臣 +6 位作者 李煜 张波 陈昱江 张琛琦 郑锦泓 焦毅 鲍泽威 《化学研究与应用》 CAS 北大核心 2024年第6期1286-1294,共9页
航空煤油成分复杂,由上百种不同构型的烃类组成,然而正构烷烃、异构烷烃、环烷烃和芳香烃这几类主要组分的构型和性质差异甚大,导致其蒸汽重整反应特性存在较大差异。本论文在前期研发Ni/MgAl_(2)O_(4)基础上,引入Pt构建Ni-Pt双金属催化... 航空煤油成分复杂,由上百种不同构型的烃类组成,然而正构烷烃、异构烷烃、环烷烃和芳香烃这几类主要组分的构型和性质差异甚大,导致其蒸汽重整反应特性存在较大差异。本论文在前期研发Ni/MgAl_(2)O_(4)基础上,引入Pt构建Ni-Pt双金属催化剂,系统考察了该催化剂对不同构型组分重整反应性能的差异,并对不同构型组分在该催化剂上的重整反应路径进行了阐述。结果表明:液相还原法引人Pt能够使双金属催化剂具有合适的酸性和良好的金属Ni分散性,Ni-Pt两种金属协同效应,不仅能够提高单Ni催化剂活性,同时能够减少Ni烧结,优化催化剂稳定性;另外,不同构型组分在双金属催化剂上的重整性能具有显著差异,其中正癸烷重整的产气率以及H,选择性较为优异。不同构型烃类燃料的反应活性为:甲基环已烷>正癸烷>乙苯。由于甲基环已烷在反应过程中C-C键键能弱,易开环形成链状自由基与水发生重整反应,乙苯具有芳香烃结构且不易开环,重整反应所需能量较高。 展开更多
关键词 燃油蒸汽重整 制氢 Ni-Pt双金属催化剂 不同构型烃类 液相还原法
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实时周跳探测与修复的MGF周跳解算方法的改进
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作者 申运炎 李克昭 +4 位作者 杨梦瑶 焦迎香 田晨冬 王凯 岳哲 《测绘工程》 2024年第3期14-25,共12页
周跳的探测和修复是基于载波相位高精度定位的关键技术之一。基于改进的几何无关相位组合MGF方法具有直接分离不同频率上的周跳,对高频数据中较小的周跳实现有效探测,探测速度远快于TurboEdit法等优点。但MGF法无法探测4周以上的周跳,... 周跳的探测和修复是基于载波相位高精度定位的关键技术之一。基于改进的几何无关相位组合MGF方法具有直接分离不同频率上的周跳,对高频数据中较小的周跳实现有效探测,探测速度远快于TurboEdit法等优点。但MGF法无法探测4周以上的周跳,并对低采样率和低卫星高度角下的数据进行周跳探测时,会选取错误的周跳备选值作为周跳检验量从而造成周跳的误判。针对MGF法所存在的问题,通过联合相位减伪距法PRP法,构建新的周跳备选值判断方程,并对MGF法的周跳检验量进行二次历元间差分STMGF,组成PRP-STMGF周跳探测组合。PRP-STMGF周跳探测组合能够探测任意周的周跳,与TurboEdit法相比,修复时无需分离周跳,直接对PRP-STMGF法的周跳检验量进行四舍五入即可确定出正确的周跳值,且适用于低采样率和低卫星高度角下的实时周跳探测与修复。最后通过北斗双频实测数据进行实验验证,结果表明,PRP-STMGF周跳探测组合,避免了MGF法选取错误周跳备选值的问题,相较于TurboEdit法不仅低延时,准确率高,且适用于不同采样率和低卫星高度角下周跳探测与修复。 展开更多
关键词 周跳 改进的几何无关相位组合 相位减伪距法 二次历元间差分
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多信道光纤通信系统信号偏差控制方法研究 被引量:1
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作者 叶萧然 《激光杂志》 CAS 北大核心 2024年第2期192-196,共5页
光纤通信系统多信道的开发在分担了并发用户通信请求压力的同时,也使得信号偏差问题越来越严重,导致通信可靠性下降,通信延迟问题加重。针对上述问题,研究一种多信道光纤通信系统信号偏差控制方法。利用采集器获取同一时段通信系统信道... 光纤通信系统多信道的开发在分担了并发用户通信请求压力的同时,也使得信号偏差问题越来越严重,导致通信可靠性下降,通信延迟问题加重。针对上述问题,研究一种多信道光纤通信系统信号偏差控制方法。利用采集器获取同一时段通信系统信道信号与导频信道信号并实施滤波处理,计算两种信号之间的相似度,检测是否存在信号偏差。利用零点比较法计算两种信号之间的相位差。通过纠正比例因子的引入和粒子群算法的整定,优化PID信号偏差控制器,以相位差为输入,得出多信道光纤通信系统信号偏差控制量。结果表明:与控制前相比,控制后三信道通信信号与导频信道信号之间的相似度更大,而且均大于0.95,由此说明所研究控制方法是有效的,抑制了信号偏差现象。 展开更多
关键词 多信道光纤通信系统 信号偏差 相位差 控制方法
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基于时域多分辨分析方法的长波信号时延预测
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作者 韩欣宇 何莉敏 杜永兴 《内蒙古科技大学学报》 CAS 2024年第2期178-182,共5页
长波地波传播时延是决定陆基导航定位系统精度的关键,时域有限差分(Finite Difference-Time Domain,FDTD)方法可以提高其精度。但是FDTD方法在计算长距离的模型问题时迭代次数随之增多导致数值计算误差变大。主要通过基于圆柱坐标系下... 长波地波传播时延是决定陆基导航定位系统精度的关键,时域有限差分(Finite Difference-Time Domain,FDTD)方法可以提高其精度。但是FDTD方法在计算长距离的模型问题时迭代次数随之增多导致数值计算误差变大。主要通过基于圆柱坐标系下采用具有紧支撑特性的二阶矩Daubechies小波函数为尺度函数的时域多分辨分析(Multiresolution Time Domain,MRTD)方法来提高数值计算精度。随后对MRTD方法进行色散分析,最后将该方法应用于低频地波的传播预测中,提取观测点的衰减因子相位,与使用FDTD数值算法得到的结果进行对比,结果表明:MRTD方法可以在保持精度的前提下用时比FDTD更短。 展开更多
关键词 时域有限差分法 时域多分辨方法 衰减因子相位 Daubechies小波尺度函数
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GB/T 1032新旧标准差异解析
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作者 王凯 孔高祥 黄晓东 《中国标准化》 2024年第5期192-195,共4页
GB/T 1032《三相异步电动机试验方法》是我国三相异步电动机产品检测方法的主要依据。新版试验方法即将在2024年4月1日实施,与现行2012版标准相比,新版标准在诸多方面做出来调整。本文列举了新旧版本中除结构性调整和编辑性改动外的的变... GB/T 1032《三相异步电动机试验方法》是我国三相异步电动机产品检测方法的主要依据。新版试验方法即将在2024年4月1日实施,与现行2012版标准相比,新版标准在诸多方面做出来调整。本文列举了新旧版本中除结构性调整和编辑性改动外的的变化,有助于相关检验检测人员学习掌握新的试验方法。 展开更多
关键词 三相异步电动机 试验方法 差异
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斜坡叠加起伏海床对波浪反射的修正缓坡方程有限差分解
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作者 倪云林 张希疆 +1 位作者 于姜梅 沈良朵 《应用数学和力学》 CSCD 北大核心 2024年第5期606-621,共16页
基于修正缓坡方程,建立了方程求解的有限差分模型,研究了斜坡叠加起伏海床对波浪的反射.首先,对波浪入射平面斜坡以及水平海床上单周期、双周期正弦沙纹的反射问题进行了验证,结果与他人的数值解、解析解及实验数据吻合较好,证明了该模... 基于修正缓坡方程,建立了方程求解的有限差分模型,研究了斜坡叠加起伏海床对波浪的反射.首先,对波浪入射平面斜坡以及水平海床上单周期、双周期正弦沙纹的反射问题进行了验证,结果与他人的数值解、解析解及实验数据吻合较好,证明了该模型的正确性.接着,讨论了抛物形斜坡的上凸高度及下凸深度,斜坡叠加单周期正弦沙纹的数量、高度及长度,斜坡叠加双周期正弦沙纹的高度对波浪反射系数的影响.结果表明,反射系数随抛物形斜坡上凸高度的增大而减小,随下凸深度的增大而增大.斜坡叠加单周期正弦沙纹对波浪反射的规律与水平海床基本一致,相比水平海床Bragg共振相位下移的幅度随沙纹数量增加,先减小后保持不变的情况,斜坡叠加沙纹共振相位下移的幅度随沙纹数量增加先减小后增大.波浪入射斜坡叠加双周期正弦沙纹地形,随叠加的两个沙纹高度分别增加,Bragg共振峰值均相应地增加,共振带宽几乎不受影响,主振峰值的相位下移幅度减小,这与单周期沙纹中随沙纹高度增加,共振相位下移幅度更大的情况相反.对比发现:当固定沙纹的数量、长度、高度,不论是水平海床还是斜坡海床,双周期正弦沙纹对波浪的反射强度以及激发的共振带宽均大于单周期正弦沙纹,共振相位下移的幅度则小于单周期沙纹;斜坡叠加正弦沙纹对波浪的反射强度要大于水平海床,零反射的现象不再存在,主振峰值的相位下移幅度较水平海床更大. 展开更多
关键词 修正缓坡方程 有限差分法 斜坡海床 Bragg共振反射 相位下移 共振带宽
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基于动刚度法的水面船舶桨-轴-船体耦合系统
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作者 伦宇博 李增光 《造船技术》 2024年第2期30-34,62,共6页
为分析在低频段内船体两侧螺旋桨激励相位差对船体振动的影响,基于动刚度法建立水面船舶桨-轴-船体耦合系统的横向振动3梁耦合模型。将动刚度法的计算结果与有限元法进行对比,表明动刚度法具有良好的精度。分析桨-轴-船体耦合系统的垂... 为分析在低频段内船体两侧螺旋桨激励相位差对船体振动的影响,基于动刚度法建立水面船舶桨-轴-船体耦合系统的横向振动3梁耦合模型。将动刚度法的计算结果与有限元法进行对比,表明动刚度法具有良好的精度。分析桨-轴-船体耦合系统的垂向固有振动特性。在低频段内该系统主要表现为船体梁的振动,推进轴系对船体梁的固有特性影响较小。对左右双桨分别施加不同相位差的单位垂向简谐力,计算由各轴承位置输入至船体梁的功率流。结果表明,双桨激励相位差的增大会使输入至船体梁的功率流变小。因此,在对桨-轴-船体耦合系统的横向振动控制方面,应重点关注双桨激励相位差较大时的工况。 展开更多
关键词 水面船舶 船体振动 桨-轴-船体耦合统系 3梁耦合模型 动刚度法 弯扭耦合 相位差
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基于面积差法的小电阻接地配电网系统单相故障选线研究
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作者 吴剑飞 刘源 +1 位作者 冷婷婷 韩超 《电工技术》 2024年第11期95-97,102,共4页
针对小电阻接地配电网系统单相故障频发,易影响系统安全稳定运行的问题,提出了一种基于零序电流面积差法的选线方式。首先通过分析零序电流的故障特征,得出在故障线路与非故障线路上零序电流变化方向相反;其次利用零序电流方向相反的特... 针对小电阻接地配电网系统单相故障频发,易影响系统安全稳定运行的问题,提出了一种基于零序电流面积差法的选线方式。首先通过分析零序电流的故障特征,得出在故障线路与非故障线路上零序电流变化方向相反;其次利用零序电流方向相反的特征,构造了线路两两对比的面积差法,并经归一化处理得到了故障选线矩阵;最后利用MATLAB/Simulink搭建10 kV小电阻接地配电网系统进行仿真验证,结果表明该方法能够准确选线,且具有一定的抗过渡电阻能力。 展开更多
关键词 单相故障 面积差法 零序电流 故障选线矩阵
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