电力绘图软件

Java、python、matlab三种语言实现svm算法，可直接运行查看结果。

Intel Parallel Studio XE 2018单独的license文件，方便没有下载的朋友

采用COMSOL软件，对平面变压器的仿真过程进行叙述，让大家了解平面变压器的仿真流程，是个很好的指导教材Solved with COMSOL Multiphysics 5.0Results and discussionThe magnetostatic analysis yields an inductance of 0. 1l mH and a dc resistance of0. 29 mQ2. Figure 2 shows the magnetic flux density norm and the electric potentialdistributionvolume: Coil potentiaL()Volume: Magnetic flux density norm (t▲0.07▲2.88×10-42.51.50.03050.01V656×107v0igure 2: Magnetic flux density norm and electric potential distribution for themagnetostatic analysisIn the static (DC) limit, the potential drop along the winding is purely resistive andcould in principle be computed separately and before the magnetic flux density iscomputed. When increasing the frequency, inductive effects start to limit the currentand skin effect makes it increasingly difficult to resolve the current distribution in thewinding. At sufficiently high frequency, the current is mainly flowing in a thin layernear the conductor surface. When increasing the frequency further. capacitive effectscome into play and current is flowing across the winding as displacement currentdensity. When going through the resonance frequency, the device goes from behavingas an inductor to become predominantly capacitive. At the self resonance, the resistivelosses peak due to the large internal currents Figure 4 shows the surface current3 MODELING OF A 3D INDUCTORSolved with COMSOL Multiphysics 5.0distribution atl MHz. Typical for high frequency the currents are displaced towardsthe edges of the conductor.freq(1)=1.0000E6_Surfaee: Surface-current density norm (A/)▲18618Q16010￥1.02Figure 3: Surface current density at I MHz (below the resonance frequency)Figure 4 shows how the resistive part of the coil impedance peaks at the resonancefrequency near 6MHz whereas Figure 5 shows how the reactive part of the coiimpedance changes sign and goes from inductive to capacitive when passing throughthe resonance4 MODELING OFA3DINDUCTORSolved with COMSOL Multiphysics 5.0Global: Lumped port impedance(Q2)d port impedance7.5G6.583275655545352510.10.20.30.40.509igure 4: Real part of the electric potential distribution5 MODELING OF A INDUCTORSolved with COMSOL Multiphysics 5.0Global: Lumped port impedance(Q2)35000Lumped port impedance200001000050000500010000-1500020000250000.10.20.30.40.50.60.70.809Figure 5: The reactive part of the coil impedance changes sign hen passing through theresonance frequency, going from inductive to capacitiveModel library path: ACDC_Module/Inductive_ Devices_and_coils/inductor 3dFrom the file menu. choose newNEWI In the new window click model wizardMODEL WIZARDI In the model wizard window click 3D2 In the Select physics tree, select AC/DC> Magnetic Fields(mf)3 Click Add4 Click StudyMODELING OF A3D NDUCTORSolved with COMSOL Multiphysics 5.05 In the Select study tree, select Preset Studies>StationaryGEOMETRYThe main geometry is imported from file. Air domains are typically not part of a CaDgeometry so they usually have to be added later. For convenience three additionaldomains have been defined in the CAd file. These are used to define a narrow feed gapwhere an excitation can be appliedport l(impl)I On the model toolbar, click Import2 In the Settings window for Import, locate the Import section3 Click Browse4 Browse to the models model library folder and double-click the filenductor 3d. mphbinSphere /(sphl)I On the Geometry toolbar, click Sphere2 In the Settings window for Sphere, locate the Size section3 In the Radius text field, type 0.2ick to expand the Layers section. In the table, enter the following settingsLayer nameThickness(m)ayer0.055 Click the Build All Objects buttonForm Union(fin)i On the Geometry toolbar, click Build AllClick the Zoom Extents button on the Graphics toolbar7 MODELING OF A 3D INDUCTORSolved with COMSOL Multiphysics 5.03 Click the Wireframe Rendering button on the Graphics toolbarThe geometry should now look as in the figure below0.1-0.10.20.0.0.1y0.0.2Next, define selections to be used when setting up materials and physics Start bdefining the domain group for the inductor winding and continue by adding otheruseful selectionsDEFINITIONSExplicitI On the Definitions toolbar, click Explicit2 In the Settings window for Explicit, in the Label text field, type Winding3 Select Domains 7,8 and 14 onlyI On the Definitions toolbar, click Explicit2 In the Settings window for Explicit, in the Label text field, type Gap3 Select domain 9 onlI On the Definitions toolbar, click Explicit8 MODELING OF A3DINDUCTORSolved with COMSOL Multiphysics 5.02 In the Settings window for Explicit, in the Label text field, type core3 Select Domain 6 onlyExplicit 4I On the Definitions toolbar, click Explicit2 In the Settings window for Explicit, in the Label text field, type InfiniteElements3 Select Domains 1-4 and 10-13 onlyExplicit 5I On the Definitions toolbar, click Explicit2 In the Settings window for Explicit, in the Label text field, type Non-conducting3 Select Domains 1-6 and 9-13 onlyI On the Definitions toolbar, click Explicit2 In the Settings window for Explicit, in the Label text field, type Non-conductingwithout Ie3 Select Domains 5, 6, and 9 only.Infinite Element Domain /(iel)Use infinite elements to emulate an infinite open space surrounding the inductorI On the definitions toolbar click Infinite element domain2 In the Settings window for Infinite Element Domain, locate the Domain Selectionsection3 From the Selection list. choose Infinite Elements4 Locate the Geometry section From the Type list, choose SphericalNext define the material settingsADD MATERIALI On the Model toolbar, click Add Material to open the add Material window2 Go to the Add material window3 In the tree, select AC/DC>Copper.4 Click Add to Component in the window toolbar9 MODELING OF A 3D INDUCTORSolved with COMSOL Multiphysics 5.0MATERIALSCopper(mat/)I In the Model Builder window, under Component I(comp l)>Materials click Copper(matD)2 In the Settings window for Material, locate the Geometric Entity Selection section3 From the Selection list, choose windingADD MATERIALI Go to the Add Material window2 In the tree. select built-In>Air3 Click Add to Component in the window toolbarMATERIALSAir(mat2I In the Model Builder window, under Component I(comp l)>Materials click Air(mat2)2 In the Settings window for Material, locate the Geometric Entity Selection section3 From the Selection list, choose Non-conductingThe core material is not part of the material library so it is entered as a user-definedmateriaMaterial 3(mat3)I In the Model Builder window, right-click Materials and choose Blank Material2 In the Settings window for Material, in the Label text field, type Core3 Locate the geometric Entity Selection section4 From the selection list choose Core5 Locate the Material Contents section. In the table, enter the following settingsPropertName Value Unit Property groupElectrical conductivity sigma0S/IBasicRelative permittivity epsilonrBasicRelative permeability mur1e3Basic6 On the model toolbar. click Add Material to close the Add Material windowMAGNETIC FIELDS (MF)Select Domains 1-8 and 10-14 only0MODELING OF A 3D INDUCTOR

滚动轴承振动数据，包含内圈故障信号；外圈故障信号；保持架故障；滚动体故障以及正常信号

《Python进阶》是《Intermediate Python》的中⽂译本, 谨以此献给进击的 Python 和 Python程序员们!

采用基于梳状导频的信道估计，并且采用QPSK调制。IFFT和FFT的点数为128，子载波个数为100，每符号上的比特数为2，每桢的OFDM符号数为12，导频之间的间隔为7，保护间隔长度为8，每比特信噪比为16，信噪比间隔为2。信道模型为带多普勒频移的瑞利衰落信道。多普勒频移为100，多径数为3，采样周期T=1。

通过串口来控制pwm的输出 已经调通并用在项目上 波特率为9600 pwm可以随意设置 16位定时器 并可以通过串口来控制pwm的产生 非常非常好用

Water Quality Analysis Simulation Program (WASP)是在1983年Di Toro等人建立模型的基础上的加强版。优点：灵活性：能够模拟大部分水体类型，河流、湖泊、河口、海洋水体。 内部链接：热模块计算结果提供给富营养化模块，再用于有毒物质模拟。 外部链接：能够和多种模型耦合。模块灵活性三种处理技术：分为简单、中级和复杂的处理方式。 模拟大部分水质问题：常规污染物，溶解氧、富营养化、温度；有毒污染物，有机物、简单的金属、汞等局限性： WASP的研究对象为完全混合水体控制单元，比如排污口附近这种类型的问题不能模拟。 非水相：油的比重、粘度和UTILITY PROGRAMS…128EUTROPHICATION MODEL ENHANCEMENTSTable of figuresTable of tablesSystem Data回囟Option Particulate Mass Dispersion Flow ATransport Field BalOrthophosphate [mgaoids 1Organic Phosphorous [mg/TSimulatedSolid5 Phytoplankton Ch.网g川 Simulatedoids 1Benthic如ae(gDm2Dissolved Oxygen (mg/)b9CBOD1(Ultimate)(mg/l)SimulatedSolids 110 CBOD 2 [Ultimate)(rng/Bypassed5a|d111 CBOD 3 (UlitrnateJ(mg/Bypassed鷗C」国e国F[√」xcmc」Figure I WASP 7 State Variable selection必劉图国K引T sta幽回因国团”B1xP3qpP明团9的旱994MFigure 2 Interface main ScreenParametersDescriptiModel t ypeRestart OptiNew river Input datEUTRONo Restart file□ mmentsC create restart fileC Load restart file noNon point Souice fileBed voluStart dateUse nPs fiBrowseNPS File name1211999C DrBed Compaction Time StepStart t ime- HydrodeNet flowEnd datesp calculated1-D Network kinematic wavea User defined2312002Hydrodynamic LinkageHydrodynamic Linkage FileSolution OptionsEnd timeC: WASP Project New River N ewRiverH hyd Negative S olution AlloweBrowseSolution techniqueX CancelFigure 3 WASP Simulation parameters screen+aB

采用区域生长的方式分割图像，用户可以用鼠标在其中选取一个种子点并按下回车键，之后会出现分割结果。

利用所建模型，仿真分析了机车在不同功率、不同电压下的谐波特性。得知机车谐波电流分布趋势不随功率变化，但机车功率越低谐波水平越高，且同样功率情况下再生制动工况的谐波水平略高于牵引工况;机车谐波电流随机车电压显著变化，但分布趋势大致一样，两倍开关频率附近的谐波及高次谐波随电压增加而增加，低次谐波变化趋势不确定。