基于Ansoft RMxprt的三相异步电机设计分析

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,第,2,讲 基于,Ansoft RMxprt,的三相异步电机设计分析,电机的磁路设计法,RMxprtTM是旋转电机专业设计软件，能快速计算各种电机感应电机、同步电机、电子或机械换向电机等的性能指标。RMxprtTM还能快速地对成百上千种设计方案进行评估，并可对预选方案进行设计优化，优化设计后的方案可根据模型的对称性，自动生成合理的二维/三维电磁场有限元分析模型。RMxprtTM为工程人员在产品设计过程中及时地评估和平衡设计方案提供了有效工具。,RMxprt,TM,RMxprt,概述,随着电机应用领域的不断拓展，工程设计人员在产品小型化、高效率以及高性能方面面临越来越多的挑战。RMxprtTM帮助电机制造者，在设计过程的初始阶段制定成百上千种方案，同时对其性能进行评估，从中优选出最正确、合理的设计方案。,RMxprt,概述,具有,Windows,风格的桌面环境，采用专业的、模版化电机设计界面，,RMxprt,TM,运用经典电机分析理论快速、准确地求解电机的转矩转速特性、损耗、气隙磁通、以及效率等重要特性曲线及参数。集成的参数化分析和优化设计功能使它成为快捷、高效的电机设计专用工具。,RMxprt,概述,RMxprt,TM,与,Ansoft,的,Maxwell,集成在同一设计环境中，设计者可单独使用,RMxprt,TM,，也可将其优选出的设计方案自动生成二维,/,三维有限元分析模型，用,Maxwell,对电机进行更精确的电磁场分析设计,实现电机解析,-,有限元自动设计流程。,特点,-Windows,风格介面，模版化参数输入,:,工作条件,几何尺寸,材料特性等,-,基于经典的电机分析理论和等效磁路法的快速解析分析,-,提供美国、中国材料库和公制、英制单位,-,自动排列多种绕组型式或用户自定义任意绕组连接方式,-,无刷电机、开关磁阻电机和永磁同步电动机的驱动线路类型、控制方式及开关管参数可设定,-,直流电机详细的换向器和电刷参数可设定,-,输入数据自动验证功能,特点,-,提供丰富的预设计电机模型库,-,自动设计功能,:,槽形尺寸、线圈匝数、线规、起动电容等,-,求解时考虑材料非线性,特性、三维斜槽和端部效应,-,参数化和优化设计功能：,-,尺寸等参数无需指定，可用一定变化范围的变量表示,-,数据、图形、自定义结果输出模式,-,多种负载种类,三相异步电机RMxprt设计1工程建立,三相异步电机RMxprt设计2模型建立,或双击工程管理树对应项，在屏幕上弹出“Properties窗口，输入模型数据后，点击“确定退出。,定子数据输入,Relative Permeability:,相对磁导率,simple:,导磁性能各向同性且,BH,关系为线性；,Value,值为,1,Anisotropic :,导磁性能各向异性材料,需要输入三个方向的导磁性能,X:T(1,1),Y,:T(2,2),Z:T(3,3),Nonlinear:,导磁性能非线性,Bulk Conductivity:,电导率,类型：,Simple:,各向同性,Anisotropic :,各向异性,Magnetic Coercivity:,磁矫顽力,Core Loss Type:,铁芯损耗类型,Electrical Steel,:,电工钢片,Power Ferrite:,功率铁氧体,定子槽形,定子绕组,定子绕组端部数据和绝缘数据,定子绕组类型,转子数据,转,子,槽,类,型,转子槽形数据,转子铸铝绕组,轴材料设定,(,磁性、非磁性,),仿真设置,求解异步电机,结果查看,设计单,Three-Phase Induction Motor Design,File: Setup1.res,GENERAL DATA,Given Output Power (kW):11,Rated Voltage (V):380,Winding Connection:Delta,Number of Poles:4,Given Speed (rpm):1460,Frequency (Hz):50,Stray Loss (W):110,Frictional Loss (W):102,Windage Loss (W):0,Type of Load:Constant Torque,Operating Temperature (C):75,STATOR DATA,Number of Stator Slots:36,Outer Diameter of Stator (mm): 260,Inner Diameter of Stator (mm): 170,Type of Stator Slot:2,Dimension of Stator Slot,hs0 (mm): 0.8,hs1 (mm): 0.975,hs2 (mm): 15.83,bs0 (mm): 3.8,bs1 (mm): 7.28,bs2 (mm): 10.05,Top Tooth Width (mm): 7.86988,Bottom Tooth Width (mm): 7.86977,STATOR DATA,Length of Stator Core (mm): 155,Stacking Factor of Stator Core:0.98,Type of Steel:50DW470,Number of lamination sectors0,Press board thickness (mm): 0,Magnetic press boardNo,Number of Parallel Branches:1,Type of Coils:11,Coil Pitch:5,Number of Conductors per Slot:29,Number of Wires per Conductor:2,Wire Diameter (mm):1.291,Wire Wrap Thickness (mm):0.04,STATOR DATA,Wedge Thickness (mm):2,Slot Liner Thickness (mm):0.3,Layer Insulation (mm):0,Slot Area (mm2):185.272,Net Slot Area (mm2):151.148,Slot Fill Factor (%):67.98,Limited Slot Fill Factor (%):75,Wire Resistivity (ohm.mm2/m):0.0217,Top Free Space in Slot (%):0,Bottom Free Space in Slot (%):0,Conductor Length Adjustment (mm): 0,End Length Correction Factor1,End Leakage Reactance Correction Factor1,ROTOR DATA,Number of Rotor Slots:26,Air Gap (mm): 0.5,Inner Diameter of Rotor (mm): 60,Type of Rotor Slot:2,Dimension of Rotor Slot,hs0 (mm): 0.5,hs1 (mm): 0.95,hs2 (mm): 25,bs0 (mm): 1,bs1 (mm): 4.8,bs2 (mm): 4.8,Cast Rotor:Yes,Half Slot:No,ROTOR DATA,Length of Rotor (mm): 155,Stacking Factor of Rotor Core:0.98,Type of Steel:50DW470,Skew Width:1,End Length of Bar (mm): 0,Height of End Ring (mm): 28.5,Width of End Ring (mm): 15,Resistivity of Rotor Bar,at 75 Centigrade (ohm.mm2/m):0.0263158,Resistivity of Rotor Ring,at 75 Centigrade (ohm.mm2/m):0.0263158,Magnetic Shaft:No,MATERIAL CONSUMPTION,Armature Copper Density (kg/m3): 8900,Rotor Bar Material Density (kg/m3): 2689,Rotor Ring Material Density (kg/m3): 2689,Armature Core Steel Density (kg/m3): 7800,Rotor Core Steel Density (kg/m3): 7800,Armature Copper Weight (kg): 7.80991,Rotor Bar Material Weight (kg): 1.43372,Rotor Ring Material Weight (kg): 1.00758,Armature Core Steel Weight (kg): 28.11,Rotor Core Steel Weight (kg): 19.152,Total Net Weight (kg): 57.5132,Armature Core Steel Consumption (kg): 55.0598,Rotor Core Steel Consumption (kg): 26.8931,RATED-LOAD OPERATION,Stator Resistance (ohm):0.926082,Stator Resistance at 20C (ohm):0.761777,Stator Leakage Reactance (ohm):2.11611,Rotor Resistance (ohm):0.530839,Rotor Resistance at 20C (ohm):0.436658,Rotor Leakage Reactance (ohm):5.4719,Resistance Corresponding to,Iron-Core Loss (ohm):1918.47,Magnetizing Reactance (ohm):99.6363,Stator Phase Current (A):12.0556,Current Corresponding to,Iron-Core Loss (A):0.186727,Magnetizing Current (A):3.59539,Rotor Phase Current (A):10.7566,RATED-LOAD OPERATION,Copper Loss of Stator Winding (W):403.784,Copper Loss of Rotor Winding (W):184.262,Iron-Core Loss (W):200.675,Frictional and Windage Loss (W):103.101,Stray Loss (W):110,Total Loss (W):1001.82,Input Power (kW):12.1174,Output Power (kW):11.1156,Mechanical Shaft Torque (N.m):71.9265,Efficiency (%):91.7324,Power Factor:0.873688,Rated Slip:0.0161591,Rated Shaft Speed (rpm):1475.76,NO-LOAD OPERATION,No-Load Stator Resistance (ohm):0.926082,No-Load Stator Leakage Reactance (ohm):2.1167,No-Load Rotor Resistance (ohm):0.530608,No-Load Rotor Leakage Reactance (ohm):5.47774,No-Load Stator Phase Current (A):3.74302,No-Load Iron-Core Loss (W):216.191,No-Load Input Power (W):469.962,No-Load Power Factor:0.0843587,No-Load Slip:0.000134133,No-Load Shaft Speed (rpm):1499.8,BREAK-DOWN OPERATION,Break-Down Slip:0.07,Break-Down Torque (N.m):155.229,Break-Down Torque Ratio:2.15816,Break-Down Phase Current (A):34.6863,LOCKED-ROTOR OPERATION,Locked-Rotor Torque (N.m):51.8262,Locked-Rotor Phase Current (A):53.1066,Locked-Rotor Torque Ratio:0.720545,Locked-Rotor Current Ratio:4.40514,Locked-Rotor Stator Resistance (ohm):0.926082,Locked-Rotor Stator,Leakage Reactance (ohm):2.11318,Locked-Rotor Rotor Resistance (ohm):1.07639,Locked-Rotor Rotor,Leakage Reactance (ohm):5.01715,DETAILED DATA AT RATED OPERATION,Stator Slot Leakage Reactance (ohm):0.83535,Stator End-Winding Leakage,Reactance (ohm):0.523713,Stator Differential Leakage,Reactance (ohm):0.757046,Rotor Slot Leakage Reactance (ohm):2.12948,Rotor End-Winding Leakage,Reactance (ohm):0.191323,Rotor Differential Leakage,Reactance (ohm):2.17061,Skewing Leakage Reactance (ohm):0.98048,DETAILED DATA AT RATED OPERATION,Stator Winding Factor:0.959795,Stator-Teeth Flux Density (Tesla):1.39626,Rotor-Teeth Flux Density (Tesla):1.26883,Stator-Yoke Flux Density (Tesla):1.32576,Rotor-Yoke Flux Density (Tesla):1.20521,Air-Gap Flux Density (Tesla):0.725873,Stator-Teeth Ampere Turns (A.T):10.4835,Rotor-Teeth Ampere Turns (A.T):7.73997,Stator-Yoke Ampere Turns (A.T):19.3268,Rotor-Yoke Ampere Turns (A.T):3.6677,Air-Gap Ampere Turns (A.T):365.746,DETAILED DATA AT RATED OPERATION,Correction Factor for Magnetic,Circuit Length of Stator Yoke:0.532743,Correction Factor for Magnetic,Circuit Length of Rotor Yoke:0.45931,Saturation Factor for Teeth:1.04983,Saturation Factor for Teeth & Yoke:1.1127,Induced-Voltage Factor:0.942715,DETAILED DATA AT RATED OPERATION,Stator Current Density (A/mm2):4.60486,Specific Electric Loading (A/mm):23.5663,Stator Thermal Load (A2/mm3):108.519,Rotor Bar Current Density (A/mm2):3.13337,Rotor Ring Current Density (A/mm2):2.02602,Half-Turn Length of,Stator Winding (mm): 321.058,WINDING ARRANGEMENT,The 3-phase, 1-layer winding can be arranged in 18 slots as below:,AAAZZZBBBXXXCCCYYY,Average coil pitch is:7.66667,Angle per slot (elec. degrees):20,Phase-A axis (elec. degrees):110,First slot center (elec. degrees):0,TRANSIENT FEA INPUT DATA,For one phase of the Stator Winding:,Number of Turns:174,Parallel Branches:1,Terminal Resistance (ohm):0.926082,End Leakage Inductance (H):0.00166703,For Rotor End Ring Between Two Bars of One Side:,Equivalent Ring Resistance (ohm):1.0376e-006,Equivalent Ring Inductance (H):3.25701e-008,2D Equivalent Value:,Equivalent Model Depth (mm):155,Equivalent Stator Stacking Factor:0.98,Equivalent Rotor Stacking Factor:0.98,Estimated Rotor Inertial Moment (kg m2):0.0968218,